bluuebunny/crossref_metadata_2025 huggingface dataset:
CALCIUM CONCENTRATION IN DIFFERENT PARTS OF GROUNDNUT Arachis hypogaea L. AS INFLUENCED BY LEVELS AND METHODS OF APPLICATION OF GYPSUM
Authors:   Department of Agronomy, University of Agricultural sciences, G.K.V.K Campus, Bangalore 500 065, B SHIVARAJ , GOWDA ANDANI ,   Department of Agronomy, University of Agricultural sciences, G.K.V.K Campus, Bangalore 500 065
Published: August 2023

Field experiment conducted at Hebbal, Bangalore, on TMV-2 groundnut during 1977- and 1978 kharif seasons, to study the calcium concentration in different plant parts of groundnut as influenced by levels and methods of gypsum application indicated that the addition of increasing levels of gypsum proportionately increased the concentration of calcium in leaf, stem tissue and in groundnut pods. Application to the sides at flowering resulted in highest concentration of calcium.
EFFICIENCY OF NITROGEN SOURCES IN WET LAND RICE SOIL DURING DIFFERENT CROP SEASONS
Authors:   Tamil Nadu Rice Research Institute, Aduthurai - 612101, Tamil Nadu, V VELU , K.M RAMANATHAN ,   Tamil Nadu Rice Research Institute, Aduthurai - 612101, Tamil Nadu
Published: August 2023

Three field experiments were conducted during summer (February-May), kuruvai (July-October) and thaladi (November- February) seasons of 1985-'86 with different sources of N,viz., prilled urea, ammonium chloride, neem cake coated urea, coal tar coated urea, lac coated urea and urea supergranule, each with four levels, viz., 0, 51, 102 and 153 kgN/ha to study the use efficiency (NUE) and apparent recovery (ANR) of the applied N in wet land rice. The results indicated that the yield, uptake of N, the NUE and ANR in rice were higher under urea supergranule followed by lac coated urea than prilled urea in all the three crop seasons. Application of ammonium chloride also registered higher grain yield and NUE over prilled urea during thaladi season.
FERTILISER PRESCRIPTION FOR THE CROPPING SEQUENCE OF GROUNDNUT-SORGHUM - UDIC HAPLUSTALF
Authors:   Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, A PRASANTHI , PERUMAL RANI ,   Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003
Published: August 2023

Soil test crop response field experiment was conducted on red- calcareous - Somayanur series (Udic Haplustalf) with groundnut Co.I as test crop. Fertiliser prescription equations have been developed for desired yield targets and fertiliser tailoring has been given for cropping sequence of groundnut sorghurn under irrigated condition.
RUN OFF PARAMETERS - A COMPARATIVE STUDY OF TWO RIVER BASINS
Authors:   Kelappaji College of Agricutural Engineering and Technology,Kerala Agricultural University, Malappuram Kerala, S JAYASREE , K JOHN THOMAS ,   Kelappaji College of Agricutural Engineering and Technology,Kerala Agricultural University, Malappuram Kerala
Published: August 2023

The morphological and climatic factors affecting runoff were studied using correlation and regression methods during 1989-'90. Two river basins of Kerala viz. west flowing Chaliyar and east flowing Kabbani were selected for the analysis. They were divided into sub-basins, each containing a river gauge station. Drainage area length and order of the main stream, maximum straight length of the sub-basin and rainfall were the chief factors influencing streamflow. Non-monsoon discharge was only a small fraction of the total discharge. Major portion of the monthly streamflow was from monsoon rainfall of the same month.
EFFECT OF FOLIAR SPRAY OF MICRONUTRIENTS ON DIFFERENT GROWTH STAGES OF MULBERRY (Morus alba Linn.,)
Authors:   Department of Sericulture Tamil Nadu Agricultural University,Coimbatore- 641 003, P SANTHI , K PONNUSWAMY ,   Department of Sericulture Tamil Nadu Agricultural University,Coimbatore- 641 003, N.V RADHA ,   Department of Sericulture Tamil Nadu Agricultural University,Coimbatore- 641 003
Published: August 2023

Field experiments were conducted to study the effect of micronutrients on growth and yield of mulberry at the Department of Sericulture, Tamil Nadu Agricultural University, Coimbatore, Zn (0.25% ), B (0.25% ) Mn, Fe and Mo each at 0.5% were sprayed with control on 20th day and-204 day and 40th day after pruning in mulberry during 1991-92. Spraying FeSO4 (0.50%) and ZnSO4 (0.25% ) on 20th day and 40th day after pruning recorded higher values in plant height, number of leaves/plant, leaf area and leaf yield in mulberry.
HETEROSIS FOR YIELD AND YIELD COMPONENTS IN Sorghum bicolor (L) MOENCH
Authors:   Department of Millets, School of Genectics, Tamil Nadu Agricultural University Coimbatore  641 003, P VEERABADHIRAN , S PALANISAMY PALANISAMY ,   Department of Millets, School of Genectics, Tamil Nadu Agricultural University Coimbatore  641 003, G.A PALANISAMY ,   Department of Millets, School of Genectics, Tamil Nadu Agricultural University Coimbatore  641 003
Published: August 2023

The extent of heterosis for yield and yield components in a set of eighty one cross combinations consisting of nine male sterile lines and nine restorer lines of Sorghum were studied. The cross combinations 2077A X Co 26, 296A X IL 101, 3002A X Co 25 and TNAU MS IA X IL 105 were identified as the best hybrids for grain yield on the basis of per se performance with high heterotic expression.
GENETIC VARIABILITY IN NAPIER GRASS, Pennisetum purpureum
Authors:   Department of Forage Crops, Tamil Nadu Agricultural University, Coimbatore 641003, A AMIRTHADEVARATHINAM , M STEPHEN DORAI RAJ ,   Department of Forage Crops, Tamil Nadu Agricultural University, Coimbatore 641003
Published: August 2023

Studies were made to estimate the available genetic variability for 12 characters of forage value on a germplasm collection of 53 genotypes of napier grass. High level of variability was observed for all the characters excepting leaf length. Higher estimates of GCV and heritability showed that the characters were highly heritable with scope of improvement through selection. Green fodder yield was significantly and positively correlated with plant height, leaves per tiller, leaf weight, stem weight, dry matter and crude protein yield. A number of high yielding genotypes was indentified for use in interspecific hybridisation with hajra
GROWING HYBRID TOMATO IN HILLS THROUGH TISSUE CULTURE TECHNIQUE
Authors:   Defence Agricultural Research Laboratory Almora 263 601, P.S NEGI , M.C JOSHI ,   Defence Agricultural Research Laboratory Almora 263 601
Published: August 2023

For propagation, a hybrid tomato was selected after observations on its performance in the U.P hilly climatic conditions and it was multiplied successfully through the technique of tissue culture at the Defence Agricultural Research Laboratory, Almora.
GENETIC VARIABILITY IN TOMATO
Authors:   Centre for Plant Molecular Biology, Tamil Nadu Agrl,University Coimbatore 641003, A NIRMALA KUMARI , M SUBRAMANIAN ,   Centre for Plant Molecular Biology, Tamil Nadu Agrl,University Coimbatore 641003
Published: August 2023

Genetic variability in eighty seven cultivars of tomato (Lycopersicon esculentum Mill) was studied at the Agricultural College and Research Institute, Madurai during 1989. 90. Significant differences were observed for all the characters with high values of heritability. High genotypic co-efficient of variation, heritability (broad sense) and genetic advance (5% ) estimates were obtained for fifteen quantitative characters viz., days to first fruit set. days to fruit maturity, Plant height. primary branches per plant, nodes between two inflorescences, nodes to first inflorescence, flowers per inflorescence, fruits per inflorescence, locules per fruit, equatorial perimeter of fruit, average fruit weight, total soluble solids, pH, fruits per plant and fruit yield per plant. The traits viz., average fruit weight, plant height and equatorial perimeter of fruit showed high heritability along with high genetic advance showing additive gene effect whereas flowers per inflorescence, fruits per inflorescence, total soluble soilds and pH exhibited high heritability with low genetic advance which indicated non additive gene effect.
PERFORMANCE OF INTERSPECIFIC HYBRIDS OF Sorghum bicolor (L.) MOENCH x S.halepense (L.) PERS FOR VEGETATIVE CHARACTERS
Authors:   School of Genectics, Tamil Nadu Agricultural University Coimbatore  641 003, P JAYAMANI , M STEPHEN DORAIRAJ ,   School of Genectics, Tamil Nadu Agricultural University Coimbatore  641 003
Published: August 2023

Per se performance for vegetative fodder characters in 30 inter specific hybrids involving 11 parents (six S.bicolor varieties and five S.halepense accessions) was studied. The parents SS 33, SS 31, SS 25, SS 30 for green fodder yield, CO 27 for earliness, FD 1690, FD 1694, FD 1692 and CO 27 for number of leaves and tillers per plant were identified as donors for the improvement of fodder types.
EFFECT OF FERTILITY LEVELS, SPACINGS AND WEED CONTROL MEASURES ON UPLAND DIRECT SEEDED RICE GROWTH, YIELD ATTRIBUTES AND YIELD
Authors:   Department of Agronomy, C.G.V Chitrakoot, Satna, K.N SINGH , S.N SHARMA ,   Department of Agronomy, C.G.V Chitrakoot, Satna
Published: August 2023

Studies carried outat the Banaras Hindu University, Varanashi in kharif season of 1988 and 1989 to determine the most effective method of weed control in direct seeded upland rice revealed that higher fertility levels (N100 P50 K 50) and norrower spacing (20cm. uniform row) produced more dry matter and increased grain and straw yield of rice crop. Among weed control treatments, hand weeding twice was most effective in-augmenting-growth and yield of rice crop. Among weed control treatments, hand weeding twice was most effective in augmenting growth and yield of rice crop followed by butacholor at the rate of 2.5 Kg. a.i./ha. + one hand weeding (21 DAS)
SOIL EROSION, RUN OFF AND NUTRIENT LOSS IN SELECTED WATERSHEDS OF KODAIKANAL HILLS
Authors:   Horticultural Research Station, Kodaikanal 624103 Tamil Nadu, A SARAVANAN , KMP NAMBISAN ,   Horticultural Research Station, Kodaikanal 624103 Tamil Nadu, P SANKARALINGAM ,   Horticultural Research Station, Kodaikanal 624103 Tamil Nadu
Published: August 2023

An investigation was carried out during June, 1991 May, 1992 at the Horticultural Research Station, Kodaikanal to study the effect of rainfall, stream flow and vegetation on soil erosion and run off. The natural forest shola enjoying different types of vegetational cover without any soil conservation measure was compared with cultivated banana watershed having contour stone wall as soil conservation measure. The sediment lost through soil erosion and run off and the nutrient lost from the surface soils of the above watersheds were quantified at monthly intervals. The results revealed that the monthly average rainfall more or less ramained the same in both the watersheds with the highest rainfall during October. The data on sediment loss indicated that the forest shola watershed had a higher rate (600 kg/ha/year) of soil erosion than the banana watershed (504 kg/ha/year). The cumulative water lost through run off was higher (121 mm) in shola than the banana watershed (91 mm). The sedimentation and run off reached their peak in the month of October in both the watersheds. The loss of major nutrients also followed a similar pattern as that of the run off water but the levels of loss of N and K were relatively higher than that of P. The differential soil and nutrient loss through run off water was attributed to the initial soil properties, soil conservation measures and topography of the watersheds.
EFFECT OF SOIL TEST METHODS ON POD YIELD, RESPONSE AND UPTAKE OF NUTRIENTS IN GROUNDNUT
Authors:   Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, A PRASANTHI , PERUMAL RANI ,   Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003
Published: August 2023

A study was conducted at Chinnathadagam, Coimbatore during the year 1987-88 with three levels of nitrogen (0,20 and 40 kg ha¹), four levels of phosphorus (0, 20, 40 and 60 kg ha¹). five levels of potassium (0, 30, 60, 90 and 120 kg ha) and three levels of farm compost (0, 6 and 12 tha) to find out the influence of soil test methods on pod yield, response and uptake of nitrogen, phosphorus and potassium in groundnut Co.1. Significant positive correlations were obtained between the soil test methods and the pod yield of groundnut. However, with uptake the KMnO4 - N had a negative relationship evidencing that significant contribution of N is from the native source.
EFFECT OF SALINITY AND SODICITY OF WATERS USED FOR SUPPLEMENTAL IRRIGATION ON SOIL PROPERTIES AND GROWTH OF PEARL MILLET (Pennisetum americanum L. (Leeke)
Authors:   Dept.of Soil Science and Agrl,Chemistry , S.K.N College of Agriculture Jobner 303 329, G.L KUMAWAT , P LAL ,   Dept.of Soil Science and Agrl,Chemistry , S.K.N College of Agriculture Jobner 303 329, B.R CHHIPA ,   Dept.of Soil Science and Agrl,Chemistry , S.K.N College of Agriculture Jobner 303 329, A KUMAR ,   Dept.of Soil Science and Agrl,Chemistry , S.K.N College of Agriculture Jobner 303 329
Published: August 2023

A pot experiment was conducted during the kharif season of 1988-89 to find out the effect of levels of EC (3, 6 and 9 dSm'') and Adj. SAR of supplemental irrigation waters (15, 30, 45 and 60) on soil properties (ECE, SAR, ESP and pH), plant height, number of tillers per plant, test weight, grain and stover yield of three varieties (HLBH-10, MH-169 and MBH-130) of pearl millet. The increasing levels of EC and Adj.SAR of irrigation waters increased the ECe, SAR and ESP of soil. The pH of soil increased with increasing Adj. SAR while it decreased with increasing level of EC of irrigation water. The increasing levels of EC and Adj. SAR of irrigation water decreased the plant height, number of tillers per plant, test weight and grain and stover yield. The maximum plant height, tillers, test weight and grain and stover yield were observed in HLBH-10, followed by MH-169 and MBH-130.
SEED YIELD OF Amaranthus VAR. KANNARA LOCAL UNDER PARTIAL SHADE
Authors:   Banana Research Station,Kannara P.O Trichur, K KRISHNAKUMARY , K.P PRADEEP ,   Banana Research Station,Kannara P.O Trichur
Published: August 2023

Studies on the influence of shade on growth and seed yield of Amaranthus tricolor var. kannaru local indicated that an increase in shade significantly decreased the plant height, spike length and seed yield per plant. Growth and seed yield were highest in plants grown in open condition
HEAVY METALS, GROWTH REGULATORS AND VITAMINS REQUIREMENTS OF Phoma sorghina
Authors:   A.R.S Mandore, Jodhpur, B.S RATHORE , S.M.P NAIK ,   A.R.S Mandore, Jodhpur
Published: August 2023

Phoma sorghina grew poorly in liquid basal medium without the addition of heavy metals, growth regulators and vitamins. Among trace elements, iron and among growth regulators. Indol-3 yl- Butyric acid, Indol-3 yl- Acetic acid and 2-Naphthoxy acetic acid were toxic to the fungus as their omission from medium supported good growth while presence of all the vitamins tried supported better growth of fungus.
DRIP IRRIGATION IN ANNUAL MORINGA
Authors:   Water Technology Centre,Tamil Nadu Agricultural University Coimbatore  641 003, V RAJAKRISHNA MOORTHY , S SANTHANABOSU ,   Water Technology Centre,Tamil Nadu Agricultural University Coimbatore  641 003, V.K DURAISAMY ,   Water Technology Centre,Tamil Nadu Agricultural University Coimbatore  641 003, A RAJAGOPAL ,   Water Technology Centre,Tamil Nadu Agricultural University Coimbatore  641 003
Published: August 2023

An experiment was conducted to study the performance of drip method of irrigation in annual moringa. The results revealed that the highest water use efficiency (30.58 kg/m³/ha) was achieved through drip irrigation with 4 1/day/tree.
GENETIC VARIATION AND NATURE OF CHARACTER ASSOCIATION IN SUGARCANE GERMPLASM
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, U.S NATARAJAN , S.R SREE RANGASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

A set of 65 sugarcane clones representing hybrid germplasm was evaluated for genetic variation, mean performance and character association. There was a large variation for canc yield brought about jointly by cane number, cane diameter and cane height. Variation for sucrose on the other hand was relatively low. Three clones, Co 7008, CoC 671 and Q 63 were found to be high sucrose types recording more than 20% sucrose at 12th month. Co 678, Co 62175, H 49-3533 and Co 7201 were found to possess high yield potential. Cane yield was positively associated with leaf area, internode number, internode length and cane diameter. Association of cane yield with cane number, on the other hand, was not significant. The association between cane yield and sucrose, although not significant, showed a negative trend, when very high yielders and very high sucrose type were considered.
NUTRITIONAL INVESTIGATIONS IN NENDRAN BANANA FRUIT AND DRY MATTER YIELD
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, K BHAVANI SANKER , V.N MADHAVA RAO ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Effect of three levels of N (50, 100 and 150 g/plant) and three levels of P2 05 (15, 30 and 45 g/plant) with a constant dose of 300 g/plant of K on the dry matter and fruit yield of banana Cv.Nendran was investigated at Tamil Nadu Agricultural University, Coimbatore. Significantly good bunch weight was recorded under 100 g N and 15 g P2 05/plant while the application of 100 g N and 30 g P2 05/plant recorded the highest dry matter production.
INFLUENCE OF SEASON ON YIELD AND QUALITY ATTRIBUTES OF SEED IN CHILLI (Capsicum annum L.)
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, C.P THIAGARAJAN
Published: August 2023

The number of seed per fruit was more in rabi that kharif. Among the pickings the number of seed per fruit was higher in third and first pickings respectively in rabi and kharif. The recovery of large size seed (G1) was more in kharif than rabi. Among pickings the highest recovery of G1 was from the third picking and small size seed (G3) was from last picking. The mean weight of seed obtained from the rabi season was higher than krarif. Seeds from the first picking recorded the maximum weight and that from last picking was minimum. The influence of season on germination was significant only in G1. In general earlier pickings recorded higher germination than those from later pickings.
PRE-TREATMENT METHODS TO CONTROL SEED DETERIORATION IN GINGELLY (Sesamum indicum L.) Cv. TMV 3
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, B MADANAGOPAL , C DHARMALINGAM ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Gingelly seeds stored under ambient conditions in cloth bag commenced deterioration at the fourth month of storage. Pre- treatments such as i) Hydration by soaking in water for 0.5 to 8.0 h. ii) Moisture equilibration in a saturated atmosphere for 2 to 96 h and iii) Iodine permeation in an iodine saturated atmosphere for 10 to 17 h were given to 4-month-old seeds followed by drying back to their original moisture in each case.
FORAGE PRODUCTION IN SOLE AND MIXED STAND OF CEREALS AND LEGUMES UNDER RAINFED CONDITIONS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, S MANOHARAN , S SUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Field experiments were conducted during 1984-85 and 1985-86 under rainfed vertisols at Regional Research Station, Aruppukottai to identify the suitable cereal, and legume fodders either alone or with cereals viz., maize (African tall), sorghum (K7) and Pearl millet (Co.6), legume cowpea (Co.4) and soybean (Co.1). Performance of cereal legume combination was better than pure stand. Maize + cowpea (2:1) with high fodder and protein production was the most suitable combination.
EFFECT OF MOISTURE STRESS ON THE YIELD AND YIELD COMPONENTS IN BANANA AS INFLUENCED BY THEIR GENOME AND PLOIDY
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R RAMADASS , M MOOSA SHERIFF ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Banana cultivars representing seven genomic and three ploidy groups were subjected to moisture stress at 5th-8th leaf stage and at 8th-15th leaf stage. The yield and yield components were decreased by moisture stress. Highest reduction in fruit number and weight resulted in the decreases in bunch weight in the plants subjected to moisture stress at 8th-15th leaf stage. The cultivar predominating with acuminata blood and the triploids experienced higher degree of reduction in yield and yield components during moisture strees compared to that of the cultivars predominating with balbisiana blood of diploids and tetraploids.
PATHOPHYSIOLOGY OF THANJAVUR WILT AFFECTED COCONUT PALMS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, M SURIACHANDRASELVAN , H VIJAYARAGHAVAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R BHASKARAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The sugar-phenol relationship of Thanjavur wilt-affected coconut palms was studied in detail. In the diseased palms, there was an increase of total and reducting sugars in tissues of root, bark and cortex of bleeding area. In leaf, no marked difference could be seen in total sugars but there was reduction in reducing sugars. The bark and cortex above the bleeding area also showed high concentrations of both total and reducing sugars. Non-reducing sugars also accumulated in root, leaf, bark and cortex of severaly affected palms. Total phenol content also increased in leaf, bark and cortex while in root, there was no significant difference. The content of Ortho dihydroxy phenols was also high in bark and cortex while there was no marked difference in leaf and root. The bark and cortex above the bleeding area of wilt affected palms also showed more total and ortho dihydroxyphenols than apparently healthy palms
EFFECT OF DRIP IRRIGATION ON COTTON USING SODIC WATER IN SODIC SOIL.
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, I MUTHUCHAMY , S MANI ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, D CHANDRASEKARAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

A study was conducted to find out the efficacy of drip irrigation, in combination with row spacing and plant spacing on the yield of MCU 7 summer cotton. Two levels of irrigation, three levels of row spacing and three levels of plant spacing were incorporated in the study. The water used for irrigation and the field soil type were sodic. The drip irrigated plots registered kapas yield of 730 kg/ac where as the furrow irrigated plots registered 666 kg/ac. The water utilised were 1:3 ratio in drip and furrow methods, though irrigation was non-significant
STUDIES ON REGROWTH RATE IN RELATION TO FODDER YIELD IN CUMBU-NAPIER HYBRIDS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P RAMASAMY , SUBRAMANIAN SUKANYA ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, N SIVASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, K BALAKRISHNAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Field experiments conducted at the Millet Breeding Station, Tamil Nadu Agricultural University, Coimbatore during 1987 and 1988 with cumbu napier hybrids revealed that none of the hybrids tested was superior to Co-1. The yield components such as-tiller number and regrowth rate decreased towards the maturity of the crop. The regrowth rate and tiller number observed were not related to yield. Competition for nutrients and change in the microclimate may be the possible reasons for such a relationship.
INFLUENCE OF BLUE-GREEN ALGAE AND CERTAIN ORGANIC AMENDMENTS ON THE DEGRADATION IN SUBMERGED SOILS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P DORAISAMY
Published: August 2023

r-HCH hen applied to blue green algae (BGA) soil water system was found distributed more in the water than in soil and algae. Though degradation of r-HCH was observed in soil, water and BGA, still a considerable part of the initial residues remained even after 70 days. Among the organic amendments, sewage sludge was the most effective in helping the degradation of r-HCH and it was highly degraded within 5 weeks of time. The r-HCH persisted in greater quantities even after 5th week in soil with BGA.
RICE PRODUCTIVITY IN TAMILNADU - AN ECONOMETRIC ANALYSIS.
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, D SURESH KUMAR , T.R SHANMUGAM ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The present paper intends to study the rice output supply and factor inputs (labour, fertilizer and bullock) demand by using Unit-Output-Price profit function. In order to fulfill the objectives, 80 respondents were selected randomly. The study was conducted in Kaveripattinam block of Dharmapuri district, North- Western zone of Tamilnadu. It is lucid from the study that the rice supply responds to its own price but inelastically. Rice supply has inverse relationships with price of labour and bullock power and positive relation with price of fertilizers. Also, it is evidenced from the study that the own price elasticities of labour and bullock power are negative, support the neo-classical theory of demand. Hence, one could possibly to conclude that by suitable price policy, as a major instrument, rice productivity and factor absorbtion in agriculture could be increased.
IMPACT OF SPECIAL FOODGRAINS PRODUCTION PROGRAMME AN ANALYSIS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, V VENKATAKRISHNAN , R VIJAYARAGHAVAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

An expost facto study was conducted with the objective of analysing the knowledge and adoption levels of beneficiaries of the Special Foodgrains Production programme. The results revealed that 92.50 per cent of beneficiaries reported low yield gap in paddy production. Of the twenty one variables, sixteen showed significant and positive relationship towards extent of adoption. These variables significantly contributed to 68.11 per cent variation in their knowledge level and 50.05 per cent variation in their extent of adoption of rice technologies.
PRODUCTIVITY OF INTERCROPPING SYSTEM IN SUGARCANE WITH SUGARBEET AND WHEAT
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, LAL MAKKHAN , N MUKERJI ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Results of two years field experiments conducted to explore the possibilities of remunerative autumn planting of cane by intercropping and by changing the method of planting showed that autumn planting sugarcane intercropped with sugarbeet or wheat significantly increased the cane production and gives Rs.19427- and Rs. 9681-additional income, respectivley, when compared with standard practice of spring planting giving monetary return of Rs 10646 per ha. Further it was observed that paired planting of sugarcane at 45 cm and using the 135 cm inter-paired space for growing intercrops was superior to uniform raw spacing.
VARIABILITY STUDIES IN INDUCED MUTANTS IN MUNG BEAN
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, U.M KANSAGRA , P.T SHUKLA ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The present investigation embodies the results of variability in induced mutants in greengram cultivar K-851 exposed to X-rays, ethylmethane sulphonate, diethyl sulphate at various doses singly and in combination. Variance due to progenies were significant for all the traits viz. pod length, No of seeds/pod and 100 seed weight. Negative shift in mean values for all the characters except for the grains per pod and 100 seed weight was observed. However, increase in components of genotypic and phenotypic variance, genotypic coefficient of variation, heritability and genetic advance was observed in low to high range for pod length and grains per pod while low to mederate for 100 seed weight. The changes observed were not mutagen and dose specific.
STUDIES ON CERTAIN ASPECTS OF SEED PROCESSING OF BAJRA HYBRID SEED
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, K VANANGAMUDI , K.R RAMASWAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Threshing the earheads of KM 2 bajra hybrid at 10, 15, 20 and 25 + 0.5 per cent seed moisture levels in a mechanical thresher resulted in significant differences in the extent of mechanical damage to the seeds. Seeds extracted at 15 or 20+ 0.5 per cent moisture recorded the least damage, higher germination and more seedling vigour than those at 10 or 25 +0.5 per cent.
CORRECTION OF CHLOROSIS IN SUGARCANE
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, G RAMANATHAN , N NAGASUNDARAM ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R DEVARAJAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P SAVITHRI ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The field experiments conducted in calcareous soils of Coimbatore district to alleviate Fe and Zn deficiencies in sugarcane crop and to maximise the cane yield, showed that calcareous soils with low Fe availability, 100 kg/ha alone as soil application or 50 kg FeSO4 plus FYM at 20 t/ha can be resorted to maximise cane yield of Mandya sugarcane crop. For correcting Fe deficiency in standing crop, one per cent FeSO4 foliar spray can be given on 45th and 90th day after planting. From another field experiment, the results showed that application of ZnSO4 50 kg/ha along with 100 kg FeSO4/ha significantly increased yield of ratoon crop of Co.419 sugarcane over NPK treated control Increase in sucrose content was obtained in the above crop through foliar spray of 0.5% ZnSO4 four times at 30, 50, 70 and 90 days after planting
COMPONENT ANALYSIS FOR FODDER YIELD IN COWPEA
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A GOPALAN , M BALASUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Sixteen strains of cowpea were evaluated for six fodder characters, wide range of variability was observed for plant height, green fodder yield and number of leaves. Heritability and genetic advance as percentageof mean were also high for these traits. Positive and significant genotypic correlation was noted between green fodder yield with plant height, number of leaves, leaf let length and stem girth. Pathco-efficient analysis revealed that number of leaves, leaflet length and stem girth showed high positivic direct effect on greenfodder yield. It is suggested that selection of plants with thick stem and more number of leaves will improve green fodder yield in cowpea.
PROTECTION OF SEEDS OF PEARL MILLET FROM INFESTATION BY THE WEEVIL SITOPHILUS ORYZAE LINN.
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, T DAKSHINAMOORTHY , K SIVAPRAKASAM ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A.V RANGARAJAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The persistant effect of the insecticides and fungicides on S. oryzae was studied for a period of five months by introduction of adults of S. oryzae at the commencement of the experiment and subsequently at monthly intervals. Among the three insecticidal seed treatments, malathion and HCH were significantly supcrior to activated kaolin in effecting the mortality of the weevil pest over a storage period of five months. Among the three fungicidal seed treatments, thiram and carbendazim + thiram were significantly better than carbendazim in causing mortality of S. oryzae. The standard treatment DDT+thiram was found to be superior to the other treatments in causing greater mortality of S. oryzae by its persistant effect.
INTERACTING INFLUENCE OF SAR AND ELECTROLYTE CONCENTRATION ON THE HYDRAULIC CONDUCTIVITY AND DISPERSION OF SOILS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, N.S HEBSER , G.S SHEDAKSHARAPPA ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, V.C PATIL ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Ladoratory studies on the interacting influence of Sodium Adsorption Ratio (SAR) and electrolye concentration on soil hydraulic conductivity (HC) and dispersion on two black and one red soils of Karnataka indicated that the hydraulic conductivity of soils decreased with increasing ESP and decreating electrolyte concentration. At dear eguivalest ESP and electrolyte concentontion, the greater reductions in hydraulic conductivity were observed in red soil as compared to black soils. The critical ESP value at which a sudden drop in HC occured varied from soil to soil. Red soil required higher threshold salt concentration (THC) than black soils at lower ESP values and vice-versa. was observed at higher ESP values. Dispersion Index (DT) of all soils increased with increase in ESP. The greater the dispersion index of soils, the greater was the reduction in hydraulic conductivity.
INTER-ASSOCIATION OF CHARACTERS IN WATERMELON
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P.C RAJENDRAN , S THAMBURAJ ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Six inbred parental genotypes and their 30 F1 hybrid (direct and reciprocals) combinations were used to elicit the information on inter-relation-ship between 10 yield determining characters and their association with fruit yield during summer 1988. Fruit yield/vine showed significant positive correlation with average fruit weight, number of fruits/vine, harvest index, number of seeds/fruit and LAI on 60th day of sowing.
SCREENING OF BENGAL GRAM ACCESSIONS FOR RESISTANCE TO PULSE BEETLE
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, Y.S JOHNSON THANGARAJ EDWARD , K GUNATHILAGARAJ ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Two hundred bengal gram accessions (Cicer arietinum L.) were screened for their resistance to Callosobruchus maculatus (F) by Free Choice Test. The number of eggs laid varied from 4 to 60. The adult emergence ranged between one in 11 and 27 in 5 accessions. Hundred per cent survival was observed in four accessions (Shahkot- 2, P-1675, RFG 30 and NEC-1592) as against only five per cent survival in RBH 99 and RC 109. Ovipositional preference was found not related with the suitability of the accession for further development. C. maculatus took 25 to 41 days for development. Based on the suitability index, 22 accessions were categorised as resistant, 40 as moderately resistant, 109 as susceptible and 29 as highly susceptible to C. maculatus.
GROWTH ATTRIBUTES ON YIELDING ABILITY IN BLACKGARM
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, . VIJAYALAKSHMI , S GOPALAKRISHNAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R RADHAKRISHNAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Twelve blackgram genotypes with an arbitrary grouping as 'high' 'medium' and 'low' yielders were studied in terms of assimilate partition. The phenotypic variability was wide. Growth in blackgram is significant between 'peak flowering' and 'harvest' phases. Yielding ability is conditioned by the twin criteria of growth attained on the 45th day and number of folds this value is increased by harvest. Accordingly, CO2 rates itself 'high' among high yielders, No.55 among 'medium' yielders and CM and T9 among 'low' yielders. Growth with the parameter of plant dry weight was phenomenal between 45 days and harvest. This velocity of growth and growth already obtained were yield determinants. This is amply demonstrated by the influence on the typical sigmoid growth curve.
PATH ANALYSIS IN BLACK GRAM
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A NIRMALA KUMARI , M SUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

A study was undertaken with 183 germplasm collections. Quantitative characters such as days to 50 per cent flowering, days from flowering to maturity, days to maturity, plant height, number of pods per plant, pod length, number of seeds per pod, 100 seeds weight, harvest index, biological yield per plant and seed yield per plant were taken to understand the relationship between them. All the characters showed positive correlation with seed yield per plant. The number of seeds per pod showed the highest correlation followed by pod length and number of pods per plant with the seed yield per plant. In path analysis, biological yield per plant, harvest index and pod length showed high positive direct effect on yield and thus could be inferred as the important yield components. The residual effect was in low magnitude.
EFFECT OF SPLIT APPLICATION OF POTASSIUM TO LOWLAND RICE GROWN IN MARGINALLY SALINE SOILS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A VELAYUTHAM , R BALASUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, S KRISHNASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A MOHAMED ALI ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Field experiments were conducted in rabi and kharif seasons to find out the effect of potassium application on lowland rice in marginally saline soils. The results indicated that application of 125 kg k2 O/ha in three splits at transplanting, maxmium tillering and panicle primordium initiation stages significantly increassed the plant height, number of panicless/m2, dry matter production (DMP) in both the seasons. Leaf area index (LAI) was maximum at 125 kg k20/ha in three splits during kharif season and for rabi season it was maximum under 93.75 kg k20/ha in three splits. Highest grain yield" was obtained with 125 kg k20/ha applied in three splits in both the seasons.
CO 12 A SHORT DURATION BUSHY AVARAI VARIETY
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, K GANESAMURTHY , P RAMASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R GNANAM ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P SIVASUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, U SELVARAJ ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P RANGASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R RATHNASWAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, S.R SREE RANGASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

An effort to evolve dual purpose variety in lablab through hybridization has resulted in the isolation of the culture CoLT 20, this culture is a hybrid derivative of Co 9 X Co 4 and matures in 100-110 days. This photoinsensitive bushy type culture give 9-7 tons of green tender pods per hectare or 1384 Kg of grains per hectare. Hence, CoLT 20 was released as Co 12 lablab for cultivation in Tamil Nadu.
NURSERY MANURING ON GROWTH AND NPK UPTAKE OF RICE SEEDLINGS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A MUTHUSANKARANARAYANAN , G.S THANGAMUTHU ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Field experiments conducted at Rice Research Station, Ambasamudram during Kar and Pishanam seasons of 1984-85 with TKM 9 and IR 20 rice varieties respectively revealed that application of DAP at 2 Kg per cent to the nursery resulted in increased seedling height, number of leaves per seedling, shoot dry weight, root length and uptake of NPK.
AN ANALYSIS OF PRODUCTION AND MARKETING OF TOMATO
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, N.R PADMANABAN
Published: August 2023

A study was conducted in Dharmapuri district with sixty sample farmers with the objective to found out the production cost of tomato, and to identify the problems associated with tomato cultivation and marketing. The study revealed that pusa ruby was the rulling variety with 54 per cent of the farmers followed by PKM 1 with 27 per cent of the farmers. Tomato was cultivated under irrigated condition in 78 per cent of the area and 22 per cent under rainfed situations. The cost of cultivation of tomato per ha was Rs.4,328.12 and the marketing cost to tomato per quintal was Rs.12.50. The major problems are low price, lack of processing and storage facilities.
PAIYUR 1 A HIGH YIELDING RAINFED RAGI VARIETY FOR THE NORTH WESTERN ZONE OF TAMIL NADU
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P VAIDYANATHAN , M SURESH ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A NARAYANAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, P RANGASWAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

A new high yielding ragi culture DPI 1161, a pure line selection has been developed and released as Paiyur 1. This strain with an average yield of 1800 Kg of grain and 4250 Kg of straw per hectare matures in 115-120 days. The special attributes of the strain viz higher grain and straw yield, medium duration, long open earheads and moderately resistance to blast render this variety more suited to rainfed cropping in the zone.
INFLUENCE OF SEASON ON THE RATE OF IMBIBITION AND SPEED OF GERMINATION OF SEEDS OF CHILLI
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, C.P THIAGARAJAN
Published: August 2023

The differences in the rate of imbibition was more in larger seeds from rabi than kharif seasons. The difference in the rate of imbibition between grades was comparatively more in kharif season than rabi. In both the seasons, seeds from earlier pickings recorded higher rate of imbibition than those from later pickings.
GENETIC STUDY OF DEENANATH GRASS (PENNISETUM PEDICELLATUM) FOR GREEN FODDER YIELD AND ITS COMPONENTS
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, B SELVI , SUBRAMANIAN SUKANYA ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Fifty eight Deenanath grass collections were studied for their yield attributes viz., plant height, tiller number, leaf number and green fodder yield. All the four characters had high heritability with high genetic advance as percentage of mean indicating the presence of additive gene action in controlling these fruits. Plant height had significant, positive and strong correlation with green fodder yield both at phenotypic and genotypic level. Plant height, tiller number and leaf number influenced directly for green fodder yield.
SAPROPHYTIC ACTIVITY OF RHIZOCTONIA BATATICOLA CAUSING ROOT ROT OF SAFFLOWER
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, G.M LUKADE , M.S RANE ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The saprophytic survival of R.bataticola was studied. Among different levels of hoculum, four per cent was optimum for survival of the pathogen in the soupto eight weeks. Different moisture levels were tested and the moisture at 50 per cent moisture holding capacity (MHC) was found to be most optimum for the development followed by 25 and 75 per cent. The saprophytic survival of the pathogen was much less at 100 per cent MHC. The pathogen could also survive in the air dried soil condition.
GENETIC VARIABILITY IN SOYBEAN
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, A NIRMALA KUMARI , M BALASUBRAMANIAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The genetic parameters viz., genotypic and phenotypic variances, genotypic co-efficient of variation, heritability and genetic advance were assessed from seventy genotypes of soybean. The varieties showed highly significant differences in mean values for all the characters studied. All the characters showed very high heritability. High genotypic coefficient of variation was observed for leaf area and number of primary branches per plant. Plant height, number of pods, leaf area and total dry weight per plant exhibited high amount of genetic variation, high heritability and genetic advance.
CHEMICAL CONTROL OF SHEATH ROT OF RICE
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, R VISWANATHAN , P NARAYANASAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Efficacy of mancozeb, edifenphos and tricyclazole was tested on three rice varieties viz., IR 20, Co 43 and IR 50 against sheath rot of rice and their influence on yield parameters was also assessed. Spraying mancozeb + tricyclazole 2 times was superior to other treatments. Fungicide spraying significantly increased the number of productive tillers and grain yield when fungicides were applied for seed treatment as well as for spraying in the main field.
IMMOBILIZATION OF ANABAENA AZOLLAE IN SOLID MATRIX ON AMMONIA EXCRETION
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, G MAHESH , S KANNAIYAN ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

The algal symbiont of Azolla - Anabaena azollae (AS-DS) immobilized in polyurethane foam and hollow fibre recorded higher heterocyst frequency, nitrogenase activity, protein contents and ammonia excretion. Rice seedlings (ADT-36) were raised in acid washed and sterilized sand and inoculated with immobilized A. azollae increased the seedling growth.
PRODUCTIVITY OF TOXIC METABOLITES BY ISOLATES OF RHIZOCTONIA SOLANI
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, S VANITHA , G THANGAMANI NARAYANASWAMY ,   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu
Published: August 2023

Five different isolates of R.Solani collected from Coimbatore, Madurai, Aliyar, Ambasamudrum and Gobi in Tamilnadu were assessed for the production of toxic metabolites. The culture filtrate of each isolate was considered as a toxic sample and was assayed for toxicity by bioassay of seed germination and radicle length of toxin treated rice seeds. All the isolates were found to reduce significantly the germination percentage of rice seeds and also the radicle length in germination seeds as compared to control indicating the presence of some toxic metabolites produced by the pathogen.
DIVERGENCE IN WHEAT UNDER BARANI CONDITION
Authors:   Tamil Nadu Agricultural University Coimbatore  641 003 Tamilnadu, N PREM  JAGADEV
Published: August 2023

Genetic divergence employing Mahalanobis'D2 statistic was worked out in 22 diverse genotypes of wheat based on nine economic traits under barani (non-irrigated) condition. All the genotypes were grouped into seven clusters. Maximum genetic distance was found between clusters IV ad VII followed by that between clusters III and VII and clusters IV and VI, suggesting the presence of wide diversity among these groups. The highly contributing characters were 1000-grain weight, days to maturity and grain yield. Considering higher cluster mean values and genetic distances, the crosses of the genotypes of cluster III and IV with the genotypes of cluster VII and of cluster IV with cluster VI were likely to produce high heterotic desired new recombinants.