cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.19928975.v1
title: Productivity and mineral composition of common bean in response to fertilization with molybdenum and nickel

description: ABSTRACT Nickel and molybdenum are essential micronutrients that have the ability to affect the growth and development of the bean. In this sense, the objective of this research was to assess the productivity, the growth and the mineral composition of 'Ouro Vermelho' bean in response to fertilization with molybdenum (Mo) and nickel (Ni). The field work was conducted at "Instituto Federal de Educação Ciência e Tecnologia do Espírito Santo (IFES/Alegre-ES)" in argisoil gray dystrophic haplic acrisol. The experiment was performed in 5 x 2 factorial with 5 doses of Ni (0; 15; 30; 45 and 60 g ha-1) and Mo (0 and 80 g ha-1) in a randomized block design, repeated four times. The foliar application of Ni and Mo was done 25 days after the seeding by means hand sprayer. The characteristics evaluated were: final stand, height, yield, number of pods per plant, number of seeds per pod, weight of 100 seeds and the contents of N, P, K, Fe, Mo, and Ni. Following this could be verified that the molybdenum fertilization increased the content of N within leaf, decreased the content of Fe within seed, and furthermore in case of high dose of Ni the content of Ni within seeds was decreased. The doses of Ni increased the content of N within the leaf, and also when the molybdenum is added the content of Fe within the seeds increased. The number of beans per pod increased after the application of Ni and dry weight of shoots with molybdenum fertilization. The fertilization with 80 g ha-1 of Mo and 60 g ha-1 with Ni increased in 12,71% and 29,69%, respectively, the productivity of bean.
DOI: 10.6084/m9.figshare.19928975
title: Productivity and mineral composition of common bean in response to fertilization with molybdenum and nickel

description: ABSTRACT Nickel and molybdenum are essential micronutrients that have the ability to affect the growth and development of the bean. In this sense, the objective of this research was to assess the productivity, the growth and the mineral composition of 'Ouro Vermelho' bean in response to fertilization with molybdenum (Mo) and nickel (Ni). The field work was conducted at "Instituto Federal de Educação Ciência e Tecnologia do Espírito Santo (IFES/Alegre-ES)" in argisoil gray dystrophic haplic acrisol. The experiment was performed in 5 x 2 factorial with 5 doses of Ni (0; 15; 30; 45 and 60 g ha-1) and Mo (0 and 80 g ha-1) in a randomized block design, repeated four times. The foliar application of Ni and Mo was done 25 days after the seeding by means hand sprayer. The characteristics evaluated were: final stand, height, yield, number of pods per plant, number of seeds per pod, weight of 100 seeds and the contents of N, P, K, Fe, Mo, and Ni. Following this could be verified that the molybdenum fertilization increased the content of N within leaf, decreased the content of Fe within seed, and furthermore in case of high dose of Ni the content of Ni within seeds was decreased. The doses of Ni increased the content of N within the leaf, and also when the molybdenum is added the content of Fe within the seeds increased. The number of beans per pod increased after the application of Ni and dry weight of shoots with molybdenum fertilization. The fertilization with 80 g ha-1 of Mo and 60 g ha-1 with Ni increased in 12,71% and 29,69%, respectively, the productivity of bean.
DOI: 10.6084/m9.figshare.19928976.v1
title: Structure of a tropical rainforest 10 years after selective logging in Moju-Pará

description: ABSTRACT Studies of the floristic and structural dynamics in forest exploitation areas allow to assess the impacts and provide basic information for the rational forest management. In this context, the floristic and structural dynamics were evaluated in a rainforest, ten years after its logging. The experiment was performed in 200 ha of the Experimental Field of Embrapa Eastern Amazon, in Moju - PA, where logging was done. Around the nine gaps selected, 10 m x 50 m tracks were installed, divided into square plots of 10 m side (1-5), where the plants with DBH ≥ 5 cm were inventoried. In plots 1, 3 and 5 and in the gap center subplots of 2 m x 2 m were installed where individuals with height ≥ 10 cm and DBH &lt; 5 cm were measured. The forest monitoring covered a period of 9.5 years, between March 1998 and October 2007. The structural analysis was based on the parameters of abundance, frequency, dominance, natural regeneration, sociological position and extended importance value index (EIVI) and compared the forest structures in 2007 and 1998. Ten years after logging, the high heterogeneity was maintained and increased in the younger population, due to the entry of species with strong demand for light. However, the floristic composition and structure of the managed forest still show great importance of species that, in undisturbed forests, would not have great expression in terms of EIVI.
DOI: 10.6084/m9.figshare.19928976
title: Structure of a tropical rainforest 10 years after selective logging in Moju-Pará

description: ABSTRACT Studies of the floristic and structural dynamics in forest exploitation areas allow to assess the impacts and provide basic information for the rational forest management. In this context, the floristic and structural dynamics were evaluated in a rainforest, ten years after its logging. The experiment was performed in 200 ha of the Experimental Field of Embrapa Eastern Amazon, in Moju - PA, where logging was done. Around the nine gaps selected, 10 m x 50 m tracks were installed, divided into square plots of 10 m side (1-5), where the plants with DBH ≥ 5 cm were inventoried. In plots 1, 3 and 5 and in the gap center subplots of 2 m x 2 m were installed where individuals with height ≥ 10 cm and DBH &lt; 5 cm were measured. The forest monitoring covered a period of 9.5 years, between March 1998 and October 2007. The structural analysis was based on the parameters of abundance, frequency, dominance, natural regeneration, sociological position and extended importance value index (EIVI) and compared the forest structures in 2007 and 1998. Ten years after logging, the high heterogeneity was maintained and increased in the younger population, due to the entry of species with strong demand for light. However, the floristic composition and structure of the managed forest still show great importance of species that, in undisturbed forests, would not have great expression in terms of EIVI.
DOI: 10.6084/m9.figshare.19928981
title: 'Sensory analysis of specialty coffee from different environmental conditions in the region of Matas de Minas, Minas Gerais, Brazil

description: ABSTRACT Specialty coffees can be differentiated in various ways, including the environmental conditions in which they are produced and the sensory composition of the drink. This study aimed to evaluate the effect of altitude, slope exposure and fruit color on the sensory attributes of cafes of the region of Matas de Minas. Sampling points were georeferenced in four altitude ranges (&lt; 700 m; 700 ≤ x ≤ 825 m, 825 &lt; x &lt; 950 m and ≥ 950 m) of the coffee crop; two fruit colors of var. Catuaí (yellow and red); and two slope exposures (North-facing and South-facing). Coffee fruit at the cherry stage were processed and submitted to sensory analysis. The sensory attributes evaluated were overall perception, clean cup, balance, aftertaste, sweetness, acidity, body and flavor, which made up the final score. The scores were examined by ANOVA and means were compared by the Tukey test (p ≤ 0.05). From the sensory standpoint, coffee fruits of both colors are similar, as well as the coffees from both slope exposures when these factors were analyzed separately. However, at higher altitudes, Yellow Catuaí produces coffees with better sensory quality. Similarly, coffees from North-facing slopes, at higher altitudes produce better quality cup. The altitude is the main factor that interferes with coffee quality in the area. All factors together contribute to the final quality of the beverage produced in the region of Matas de Minas.
DOI: 10.6084/m9.figshare.19928982
title: Certification, agricultural waste, organic production, herbal medicine and biotechnology in the conception of farmers of the State of Goiás

description: ABSTRACT The organic production system aims not at the intensive exploitation of resources, but the correct management of waste, the use of alternative treatments of animal diseases, and the utilization of some biotechnologies to assist in production. This is an exploratory study to evaluate the way farmers perceive the certification of their farms, the organic agricultural production, waste control, and the use of herbal medicine and biotechnologies in their properties. Fifteen farmers from the Dom Fernando Gomes dos Santos (GI) settlement, in Itaberaí, participated in the study, besides 15 farmers (GII) who are not participants in agrarian reform programs from different municipalities in the state of Goiás. Information was collected using questionnaires that addressed issues related to certification of farms, production of waste, organic agricultural production, herbal medicine, and biotechnology. Most farmers of GI and GII were unfamiliar with farm certification. Most GII farmers knew about agricultural waste, but few GI farmers knew its meaning. Most farmers of the two groups were familiar with the term organic agricultural production. More GII farmers were familiar with herbal medicines than GI. In both groups the term biotechnology was unknown to most people. It was concluded that this lack of knowledge by the majority of farmers about most topics presented shows the need to plan and execute actions to assist in the dissemination of information among farmers, settlers or not, using practical and functional strategies.
DOI: 10.6084/m9.figshare.19928982.v1
title: Certification, agricultural waste, organic production, herbal medicine and biotechnology in the conception of farmers of the State of Goiás

description: ABSTRACT The organic production system aims not at the intensive exploitation of resources, but the correct management of waste, the use of alternative treatments of animal diseases, and the utilization of some biotechnologies to assist in production. This is an exploratory study to evaluate the way farmers perceive the certification of their farms, the organic agricultural production, waste control, and the use of herbal medicine and biotechnologies in their properties. Fifteen farmers from the Dom Fernando Gomes dos Santos (GI) settlement, in Itaberaí, participated in the study, besides 15 farmers (GII) who are not participants in agrarian reform programs from different municipalities in the state of Goiás. Information was collected using questionnaires that addressed issues related to certification of farms, production of waste, organic agricultural production, herbal medicine, and biotechnology. Most farmers of GI and GII were unfamiliar with farm certification. Most GII farmers knew about agricultural waste, but few GI farmers knew its meaning. Most farmers of the two groups were familiar with the term organic agricultural production. More GII farmers were familiar with herbal medicines than GI. In both groups the term biotechnology was unknown to most people. It was concluded that this lack of knowledge by the majority of farmers about most topics presented shows the need to plan and execute actions to assist in the dissemination of information among farmers, settlers or not, using practical and functional strategies.
DOI: 10.6084/m9.figshare.19928984
title: Dairy production in a family farming colony in Palmeira, Paraná, Brazil

description: ABSTRACT The dairy sector is fundamental to the economic development of family-based farming in many regions of Brazil. This study aimed to analyze the typology of producers and quantify the cost of milk production in the small colony of farmers "Quero-Quero" in Palmeira - PR. Of the total, 90% of producers are characterized as family farmers and the social/land relationship is 6.33 ha per person employed. The gross value of milk production (GVPm) represents about 15% of all GVPm of the municipality, emphasizing the fundamental importance of the production of this community to the local economy and for the city.
DOI: 10.6084/m9.figshare.19928984.v1
title: Dairy production in a family farming colony in Palmeira, Paraná, Brazil

description: ABSTRACT The dairy sector is fundamental to the economic development of family-based farming in many regions of Brazil. This study aimed to analyze the typology of producers and quantify the cost of milk production in the small colony of farmers "Quero-Quero" in Palmeira - PR. Of the total, 90% of producers are characterized as family farmers and the social/land relationship is 6.33 ha per person employed. The gross value of milk production (GVPm) represents about 15% of all GVPm of the municipality, emphasizing the fundamental importance of the production of this community to the local economy and for the city.
DOI: 10.6084/m9.figshare.19928991
title: Optimal plot size in the evaluation of papaya scions: proposal and comparison of methods

description: ABSTRACT Evaluating the quality of scions is extremely important and it can be done by characteristics of shoots and roots. This experiment evaluated height of the aerial part, stem diameter, number of leaves, petiole length and length of roots of papaya seedlings. Analyses were performed from a blank trial with 240 seedlings of "Golden Pecíolo Curto". The determination of the optimum plot size was done by applying the methods of maximum curvature, maximum curvature of coefficient of variation and a new proposed method, which incorporates the bootstrap resampling simulation to the maximum curvature method. According to the results obtained, five is the optimal number of seedlings of papaya "Golden Pecíolo Curto" per plot. The proposed method of bootstrap simulation with replacement provides optimal plot sizes equal or higher than the maximum curvature method and provides same plot size than maximum curvature method of the coefficient of variation.
DOI: 10.6084/m9.figshare.19928991.v1
title: Optimal plot size in the evaluation of papaya scions: proposal and comparison of methods

description: ABSTRACT Evaluating the quality of scions is extremely important and it can be done by characteristics of shoots and roots. This experiment evaluated height of the aerial part, stem diameter, number of leaves, petiole length and length of roots of papaya seedlings. Analyses were performed from a blank trial with 240 seedlings of "Golden Pecíolo Curto". The determination of the optimum plot size was done by applying the methods of maximum curvature, maximum curvature of coefficient of variation and a new proposed method, which incorporates the bootstrap resampling simulation to the maximum curvature method. According to the results obtained, five is the optimal number of seedlings of papaya "Golden Pecíolo Curto" per plot. The proposed method of bootstrap simulation with replacement provides optimal plot sizes equal or higher than the maximum curvature method and provides same plot size than maximum curvature method of the coefficient of variation.
DOI: 10.6084/m9.figshare.19928993
title: Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings

description: ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease.
DOI: 10.6084/m9.figshare.19928993.v1
title: Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings

description: ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease.
DOI: 10.6084/m9.figshare.19928997
title: Growth of two genotypes of yellow passion fruit under saline conditions

description: ABSTRACT The high salinity in the soil in most watersheds in different areas of the Northeast, considered as the most significant in the production of yellow passion fruit, has affected the formation of seedlings and crop establishment under conventional management. The objective of this experiment was to compare two genotypes of yellow passion fruit under different electrical conductivities (EC) of the irrigation water in a protected environment through growth variables. The experiment was conducted in a randomized block design with four replications in a 5x2 factorial design with five values of electrical conductivity of irrigation water: 0.3, 2.0, 4.0, 6.0 and 8.0 dS m-1, using two genotypes of yellow passion: BRS Sol do Cerrado and Redondo Amarelo. The BRS Sol do Cerrado excels with respect to relative growth rate compared to the Redondo Amarelo, whose rate reduces with increasing salinity. In general, the high salinity of the irrigation water causes a reduction in the growth of the genotypes studied.
DOI: 10.6084/m9.figshare.19928997.v1
title: Growth of two genotypes of yellow passion fruit under saline conditions

description: ABSTRACT The high salinity in the soil in most watersheds in different areas of the Northeast, considered as the most significant in the production of yellow passion fruit, has affected the formation of seedlings and crop establishment under conventional management. The objective of this experiment was to compare two genotypes of yellow passion fruit under different electrical conductivities (EC) of the irrigation water in a protected environment through growth variables. The experiment was conducted in a randomized block design with four replications in a 5x2 factorial design with five values of electrical conductivity of irrigation water: 0.3, 2.0, 4.0, 6.0 and 8.0 dS m-1, using two genotypes of yellow passion: BRS Sol do Cerrado and Redondo Amarelo. The BRS Sol do Cerrado excels with respect to relative growth rate compared to the Redondo Amarelo, whose rate reduces with increasing salinity. In general, the high salinity of the irrigation water causes a reduction in the growth of the genotypes studied.
DOI: 10.6084/m9.figshare.19928999
title: Growth and biomass beet under irrigation supplementary with water different concentrations saline

description: ABSTRACT The use of saline water in agriculture is a viable alternative in view of the increased freshwater demand. The objective was to evaluate the growth and biomass of beet under irrigation with water of different saline concentrations,in an experiment conducted under field condition in the campus of the Federal University of Alagoas - Arapiraca. The treatments were five levels of electrical conductivity (S1: 1.0, S2: 2.0, S3: 3.0; S4: 4.0; S5: 5.0 dS m-1). The maximum yield of beets at 27 days after saline treatments was obtained with salinity of 3.0 dS m-1, for the variables plant height (PH), stem diameter (SD), root length (RL), shoot dry matter (SDM), and total dry matter (TDM). At 42 days after application of saline treatments, the variables shoot fresh matter (SFM), root fresh matter (RFM), total fresh matter (TFM), shoot dry matter (SDM), and total dry matter (TDM) increased with increasing salinity. Rain may have influenced the results obtained for the evaluations performed at 42 days after application of saline treatments.
DOI: 10.6084/m9.figshare.19928999.v1
title: Growth and biomass beet under irrigation supplementary with water different concentrations saline

description: ABSTRACT The use of saline water in agriculture is a viable alternative in view of the increased freshwater demand. The objective was to evaluate the growth and biomass of beet under irrigation with water of different saline concentrations,in an experiment conducted under field condition in the campus of the Federal University of Alagoas - Arapiraca. The treatments were five levels of electrical conductivity (S1: 1.0, S2: 2.0, S3: 3.0; S4: 4.0; S5: 5.0 dS m-1). The maximum yield of beets at 27 days after saline treatments was obtained with salinity of 3.0 dS m-1, for the variables plant height (PH), stem diameter (SD), root length (RL), shoot dry matter (SDM), and total dry matter (TDM). At 42 days after application of saline treatments, the variables shoot fresh matter (SFM), root fresh matter (RFM), total fresh matter (TFM), shoot dry matter (SDM), and total dry matter (TDM) increased with increasing salinity. Rain may have influenced the results obtained for the evaluations performed at 42 days after application of saline treatments.