bluuebunny/crossref_metadata_2025 huggingface dataset:
Prospek Introduksi Regulon nif dari Bakteri Klebsiella pneumoniae ke Dalam Genom Mitokondria Tanaman
Authors: Pranata Ivan Tjahja , Hulu Adminarwati , Handoko Yoga Aji
Published: May 2020

Use of synthetic fertilizers bring environmental pollution, increase weed growth, reduceatmospheric oxygen levels, decrease the fertility of agricultural land, causing eutrophicationand run-offs, also even damaging coral reefs. Recent biotechnology approaches can beutilized to create a new variety of self-fertilization plants that allows it to supply its ownnitrogen making it possible to overcome nitrogen problems and avoid them. This reviewaims to understand how far genetic engineering approach can be used by the introduction ofnif regulon from Klebsiella penumoniae. The nitrogenase-encoding genes which make up thenif regulon proved can be inserted into the mitochondrial genome as like Allen et al. (2017)did in their research. The western blotting result showed that the research succesfullyintegrated the nif regulon to the genome and expressed their proteins.
Aplikasi Berbagai Jenis Pupuk Organik Terhadap Karakter FMA Pada Rhizosfer Tebu Bud Chip
Authors: Sari Sismita , Indrawati Wiwik
Published: May 2020

This study to obtain data on the number and type of FMA. Obtained amount and types of FMA in each treatment of addition of organic fertilizer dosage level. Find out whether the combination of organic fertilizer and the given organic fertilizer dose affect the amount and type of FMA. The experiment design used was Completely Randomized Design 2 Factor and 3 replications. The first factor is 4 types of organic fertilizer (P), namely: Humat acid (P) and cow manure (D), and the second factor is 4 levels of organic fertilizer dose: D0: 0%, D1: 10 tons of organic fertilizer / ha (50 g per polybag, D2: 20 ton / ha (100 g per polybag), and D3: 30 ton / ha (150 g per polybag) There were 16 experimental units and 3 total replications of 48 experimental unit plots. Myorizas were observed using binocular microscopy and digital camera, observed spores were then grouped by morphological characters including shape, color, and spore ornaments. Identification of indigenous mycorrhizae was done using manual and confirmed by using INVAM website The result of spore count on the application of organic fertilizer containing humic acid, compost fertilizer and the combination of both the highest mycorrhizae is 3,700 in the dosage of humic acid humic fertilizer 50 g + 100 g manure. 2,300 spores in organic humic acid 100 g + 100 g of fertilizer. The number of spores was moderate, ie 1,541 on humic acid fertilizer 50 g + 150 g manure, 1,323 spores at P3D3, 1,203 at treatment of P0D2, and at treatment of P2D0 mycorrhiza reached 1.096. The smallest number mycorrhizal spores of 79 spores in the dosage of manure dose 50 g. There are 4 genera of spore that found the most commonly Genus is Glomus and Acaulospora.
Pertumbuhan dan Hasil Tanaman Bawang Daun (Allium fistulosum L.) Pada Jarak Tanam Dan Pemotongan Bibit Yang Berbeda
Authors: Fera Aprillia Rosita , Sumartono GH , Tini Etik Wukir
Published: May 2020

Due to the rising market demands of spring onion (Allium fistulosum L.) it is necessary to response them with the best technical plantation. This research is meant to know: (1) the effective plant spacing, (2) the effective seedlings tuber cutting, and (3) to decide the interaction between plant spacing and the seedlings tuber cutting spring onion. The research was done on April 2018 until June 2018 at Dusun Gewok, Desa Karanggintung, Kecamatan Sumbang, Kabupaten Banyumas. The design of the research is a Randomized Complete Block Design (RCBD) with two factors. The first factor is the plant spacing which consist of 3 levels, (15 x 20) cm, (20 x 20) cm, and (25 x 20) cm. The second factor is seedling tuber cutting which consist 3 levels, without cutting, cutting Â½ part, and cutting 2/3 part. The data analyzed using F test, then continued using Duncanâ€™s Multiple Range Test (DMRT) on level 5%. The result showed that the most effective to reach the higher level and the best yield is the plant spacing 15 cm x 20 cm with 1.729 g, the seedlings tuber cutting Â½ part raise the hight of the plant 56,12 cm, and there is no best combination between the spacing of the seedlings to cut the seedlings to increase the growth and yield of the spring onion.
Strategi Pengembangan Agribisnis Teh PT Perkebunan Tambi Kabupaten Wonosobo
Authors: Pratama Satria Eka , Nadapdap Hendrik Johannes
Published: May 2020

This research aims to 1) Know the strengths and weaknesses as well as opportunities and threats of internal and external factors at Tambi Plantation, Wonosobo Regency. 2) Formulating alternative choices of tea business development strategies that can be recommended at PT Tambi Plantation, Wonosobo Regency. The implementation of this study began in February until March 2019 and the research location was at PT Perkebunan Tambi. The data analysis technique in this study uses the IFE, EFE, IE, SWOT and QSPM matrices. The results of this study are PT Perkebunan Tambi has 10 strength factors, 5 weakness factors, 7 opportunity factors and 5 threat factors faced by the company and 10 alternative development strategies are recommended for the company.
Penerapan Interpretive Structural Modeling (ISM) Dalam Penentuan Elemen Pelaku Pengelolaan Tanaman Terpadu (PTT) Padi Sawah Menuju Pertanian Berkelanjutan Di Kabupaten Merauke
Authors: Palobo Fransiskus , Baliadi Yuliantoro
Published: May 2020

Program modeling in the application and determination of key actors in integrated cropland rice management and resource management for policy making is critical and strategic towards sustainable agriculture development. the objective of this research is to get key element actors in determining integrated crop management (PTT) of paddy rice for sustainable agriculture. As an indicator element interpretive structural modeling (ISM) in this research using 5 (five) Indicator element that is 1) Role of government, 2) Purpose, 3) Main obstacle, 4) Requirement of a program, 5) Institution involved. Results of interpretive structural modeling (ISM) analysis indicate that integrated rice plant cultivation to sustainable agriculture is the role of government in making strategic plan program hence need to follow by making technical instruction. Achieve the objective of applying integrated cropland rice management using high yielding varieties with high productivity and favored by farmers. The need for integrated cropland rice management needs to have proper fertilizer subsidies, seed subsidies, improved irrigation infrastructure and additional capital. The main constraint of integrated crop management is the uncertain climate change so pest disease is still high and at the time of planting season gadu water difficulty. While the institutions involved should be well synergized between the agricultural service and the institute for agricultural technology assessment. Policy direction in the strategic plan program needs a short, medium and long-term strategic plan by related institutions so that the youth will be evaluated according to the action stage.
Analisis Strategi Pengembangan Biogas Sebagai Energi Alternatif Rumah Tangga Dengan Memanfaatkan Limbah Ternak Kotoran Sapi
Authors: Ningrum Septia , Supriyadi Supriyadi , Zulkarnain Zulkarnain
Published: May 2020

The development of alternative energy which is sourced from cow manure has good prospect to fulfill domestic needs of society. There is one way that can be done by turning farm waste, especially cow manure, to alternative energy as the substitution of fuel in form of biogas. The aim of the study was to analyze developing strategy of biogas as domestic alternative energy by making use of cow manure in Sari Bhakti village, District of Seputih Banyak in Region of Lampung Tengah. The method used in this study was SWOT analysis. Respondents were selected purposively (purposive sampling) from Sari Bhakti village, district of Seputih Banyak with the total sample were 25 cow farmers and 4 experts who have the competence in developing biogas from cow manure. The research finding showed that based on the result analysis of SWOT metrics, recommendation that should be given is â€žprogressive strategyâ€Ÿ. Alternative strategy that can be applied is by utilizing cow farming group to get support from the governance in order to decrease the pollution of environment and to increase the prosperity of society, moreover, increasing socialization of biogas as domestic alternative energy is essential to increase the role of farming group in innovating technology of alternative energy.
Tingkat Kesukaan Konsumen Terhadap Serat Kenaf Organik dengan Pewarna Alami
Authors: Rusmini Rusmini , Aquastin Dwinita , Manullang Riama Rita , Daryono Daryono
Published: May 2020

Production of kenaf fiber for industry mostly uses chemical fertilizers with synthetic dyes that will also cause health and environmental problems and adversely affect all life forms. Increased health and environmental concern make organic kenaf fiber production with natural dyes highly recommended for both handicrafts and for industrial scale because natural fertilizers and dyes are non-toxic, decomposable, and environmentally friendly. The purpose of this study is to determine the level of consumer preference to organic kenaf fiber with natural dyes. The study used a two-factor group randomized design with the first factor of organic kenaf fiber and a second factor of natural dye consisting of 3 levels. The research was repeated as many as 2 replications so that there were 6 experimental units. Variables observed by consumer's level of craft product from organic kenaf fiber with natural dye covering color, texture and odor tested. This test is done by Hedonic Test method, using questionnaire with untrained panelist (consumer) as many as 40 people with data obtained based on a panelist response using a hedonic scale was analyzed by Kruskal-Wallis test. The results showed that there was no significant difference in consumer preferences for the color, texture and odor of organic kenaf fiber with various natural dyes.
Respons Empat Varietas Gladiol (Gladiolus hybridus L.) Terhadap Perendaman Benziladenin dalam Meningkatkan Pertumbuhan Tunas dan Produksi Subang0.
Authors: Andalasari Tri Dewi , Nurmiaty Yayuk , Ginting Yohannes C , Zahra Yamatri
Published: May 2020

Gladiolus is a potential ornamental plant to be widely developed because its high aesthetic value. Generally, gladiolus is propagated vegetatively by using tuber that called corm. There are some problems in gladiolus vegetative propagation, which is corm has a dormancy period and produces only one to two corms for each gladiolus plant. The effort that can be done to solve these problems is to provide benzyladenine to gladiolus corm. This study aims to determine the response of four varieties of gladiolus (Gladiolus hybridus L.) that soak to benzyladenine in increasing the growth of shoot and corm production. This research was conducted in Bandar Lampung in 2017. The treatment was designed factorially (4 x 4) using Randomized Block Design. The first factor was the varieties of gladiolus ie Anisa, Clara, Nabila, and Nurlaela. The second factor was the 100 ppm concentration of benzyladenine in repeating ie first, second, third, and fourth soaking. Data analysis was tested by Least Significant Difference (LSD) test at 5% level. The results showed that (1) from four gladiolus corm varieties, Nabila produced the highest number of shoots at 10,34 shoots, while the variety that produces the highest number of corm was Clara at 5,71 corms, (2) the benzyladenine that used up to four times for soaking the corm resulted the same response in increasing growth of shoot and corm production of four gladiolus varieties, (3) the response of each gladiolus varieties didnâ€™t depend on how many times that benzyladenine used to soak the corm in increasing the growth of shoot and corm production of four gladiolus varieties.
ANALISIS BROWNING BUAH PISANG KEPOK (Musa paradisiaca L.) SETELAH PERLAKUAN ASAM ASKORBAT DAN LIDAH BUAYA (Aloe barbadensis L.)
Authors: Larasati Ratri Mauluti , Lande Martha Lulus , Zulkifli Zulkifli , Wahyuningsih Sri
Published: May 2020

Fruit is a necessity for most Indonesian people. Kepok banana is a climacteric fruit that can experience browning quickly. Therefore, this study was conducted to find a safe and effective material to prevent the browning process of kepok bananas. This study aims to determine the differences in the browning index, and the activity of the enzyme dehydrogenase in kepok banana cells. This study was conducted using a 2x3 factorial design. Factor A is ascorbic acid with 2 concentration levels namely 0% (b / v) and 5% (b / v). Factor B is Aloe (Aloebarbadensis L.) leaf extract with 3 levels, namely 0%, 5%, and 10%. The quantitativeÂ parameters are browning index and total dissolved carbohydrate content. The qualitative parameter is dehydrogenase enzyme activity. Levene test and variance analysis were carried out with 5% real level. The results obtained were kepok bananas with treatments coloured brighter than control. Ascorbic acid and Aloe (Aloe barbadensis L.) affect the browning index and dissolved total carbohydrate content of the sample. A decrease in dehydrogenase enzyme activity happened in the ascorbic acid treatment. Conclusions obtained from the study are ascorbic acid with a concentration of 5% can reduce the browning index of kepok banana by 31%, ascorbic acid with a concentration of 5% can maintain total dissolved carbohydrate content kepok banana as much as 53%, and Aloe extract 10% retain total dissolved carbohydrate content sample is 20%.
Kajian Sifat Fisikokimia dan Organoleptik Beras Singkong (Manihot Esculenta Crantz) Dengan Modifikasi Secara Pemanasan
Authors: Ardiansyah Ardiansyah , Wahyuni Endang Sri
Published: May 2020

This study aims to determine the effect of heating on physicochemical properties of cassava flour by modifying the heating and organoleptic of cassava rice with cassava flour modified heating. The experimental design used in this study was a completely randomized design, consisting of one factor with six levels of treatment namely 0 minutes warm-up time, 15 minutes, 30 minutes, 45 minutes 60 minutes and 75 minutes. The results of the study data were analyzed by anova test and carried out by the Tukey HSD test. From the results of the study it was concluded that there was a warming effect on digestibility, cassava starch resistant starch modified heating. Cassava rice with cassava flour modified heating is not liked by panelists.
Uji Daya Hasil Pendahuluan Lima Galur Jagung (Zea mays L.) Hibrida Silang Tunggal Rakitan Politeknik Negeri Lampung
Authors: Fitriyani Dian , Kartahadimaja Jaenudin , Hakim Nurman Abdul
Published: May 2020

On Research this do Test power the results of the introduction for knowing corn strain the have power the results of the do hight can do make as candidate variety corn hybrid commercial. Research this doing in land of lampung State Polytechnic on April until August 2016 with Randomize Complethy Block Design (RCBD) i.e. five strain corn hybrid A (PL 205 x Pl 401), B (PL 406 x PL 205), C (PL 302 x PL 205), D (PL 205 x PL 406), E (PL 401 x PL 205) and one variety hybrid P21 as comparison . Treatment repeated as much three times and data observations analyzed with us prints range if there are difference among the treatment then will continued with Least Significant Different (LSD) on stage 5%. The results of this study were (1). The E strain has a higher potential than the A, B, C, D, and Pioner 21 (P 21) strains. (2) A, B, and C strains have the same result as hybrid varieties of P21.
Pendugaan Umur Simpan Tepung Jamur Tiram Putih (Pleurotus ostreatus) Pada Kemasan Plastik Polietilen dengan Metode Akselerasi
Authors: Astuti Sussi , Setyani Sri , Suharyono Suharyono , H Muhammad Nurreza Nurreza
Published: May 2020

The aim of the research was to determine the shelf life of white oyster mushroom flour in polyethylene plastic packaging with the Arrhenius method. The study was arranged descriptively with two replications. White oyster mushroom flour was stored at three storage temperature conditions, i.e. 30oC, 40oC and 50o C in polyethylene plastic packaging with a thickness of 0.03 mm and stored for one month (28 days). Observations were made on water content, levels of free fatty acids, protein content, flavour and color of white oyster mushroom flour every once a week i.e. on days 0, 7, 14, 21 and 28. The data obtained were used to determine the shelf life of white oyster mushroom flour using acceleration (accelerated storage) method with Arrhenius equation model using Microsoft Excel software. The results showed that the shelf life of white oyster mushroom flour in polyethylene plastic packaging thickness of 0.03 mm using the Arrhenius method was set at a temperature of 30o C based on the parameters of the zero reaction protein content, which was 130.67 days (4.3 months). White oyster mushroom flour in polyethylene plastic packaging thickness of 0.03 mm during storage temperature of 30o C, 40o C, and 50o C tends to decrease protein content, color and aroma, but experience an increase in free fatty acid levels. White oyster mushroom flour in polyethylene plastic packaging at 30o C tends to increase in water content during storage, and decreased water content at 40o C and 50o C.
Kajian Cemaran Bakteri Patogen Pada Produk Olahan Ikan
Authors: Sartika Dewi , Hidayati Sri , Fitriani Hardianti
Published: May 2020

Fish proccessed product is a favorite food that contain high protein in Indonesia, such as, otak-otak ikan. The aim of this research was to observe of phatogen bacteria contaminant on fish proccessed product, ex. Salmonella sp., Escherichia coli and Staphylococcus aureus. This research was had done on food proccessed product, used random sampling technicque, at traditional markets. The result data was arranged with descriptive statistic. The result research showed that contaminant of Escherichia coli was 1.54 x 102 colony/ ml at Tani market; 0.3 x 101 colony/ml at Gudang Lelang market. Fish proccessed product was contaminated by Salmonella, too. This research found that Fish proccessed product at Tamin, Tani and Rajabas was Salmonella contaminant detected. The Fish proccessed product that content the highest level of Stahpylococcus aureus were at Tugu narket (1,07 x 102 colony/ml) and Gudang Lelang market (1,12 x 102 colony/ml).
Pengaruh Pemberian Pupuk Limbah Organik Terhadap Pertumbuhan Dan Hasil Tanaman Mentimun (Cucumis Sativus L.)
Authors: Satriawi Widiya , Tini Etik Wukir , Iqbal Achmad
Published: May 2020

Cucumber is one of the choices of horticultural commodities for farming activities. To increase the production of cucumber can be done by using organic waste fertilizers, such as pineapple peel waste and rice washing water. This research aims: 1) to know the best concentration of liquid organic fertilizer of pineapple peel waste for growth and yield of cucumber; 2) to know the best concentration of liquid organic fertilizer of rice washing water for growth and yield of cucumber; and 3) to know the best combination of concentration of liquid organic fertilizer of pineapple peel waste and liquid organic fertilizer of rice washing water for growth and yield of cucumber. The research was conducted at screen house located in Tambaksogra Village, Sumbang Sub-district, Banyumas Regency and the Laboratory Agronomy and Horticulture, Faculty of Agriculture, Jenderal Soedirman University, on Januari until June 2019. The experiment design used was Completely Randomized Block Design with 2 factors and 3 replication. The first factor was the concentration of liquid organic fertilizer of pineapple peel waste, namely 0, 10, 20, and 30 ml/l. The second factor was the concentration of liquid organic fertilizer of rice washing water, namely 0, 10, 20, and 30 ml/l. The results showed that: 1) the concentration 30 ml/l of liquid organic fertilizer of pineapple peel waste increased fruit weight per plant compared to the control treatment of 606,02 g : 45,48%, fruit length 15,99 cm : 9,22%, and fruit volume 163,87 ml : 13,37%; 2) the concentration liquid organic fertilizer of rice washing water did not increased the growth and yield of cucumber plants; and 3) the combination of concentrations liquid organic fertilizer of pineapple peel waste and rice washing water gave the same response to plant growth and yield.
Keberhasilan Aklimatisasi dan Pembesaran Bibit Kompot Anggrek Bulan (Phalaenopsis) Pada Beberapa Kombinasi Media Tanam
Authors: Erfa Lisa , Maulida Desi , Sesanti Rizka Novi , Yuriansyah Yuriansyah
Published: May 2020

Aklimatisasi merupakan tahap yang kritis bagi plantlet. Pada lingkungan yang baru plantlet dapat mengalami cekaman lingkungan. Kondisi lingkungan seperti media yang tidak mendukung pada tahap aklimatisasi dapat menyebabkan kematian plantlet.Â  Penelitian ini bertujuan:Â  1)Â  Mendapatkan kombinasiÂ  media yang paling baik bagi keberhasilan aklimatisasi plantlet anggrek Phalaenopsis; 2)Mengetahui apakah terdapat interaksi antara media bagian bawah dengan atas pot; 3) Mendapatkan kombinasi media yang paling baik bagi pertumbuhan bibit anggrek anggrek Phalaenopsis pada tahap pembesaran, dan 4) Melihat apakah media sabut kelapa dapat digunakan untuk aklimatisasi dan pembesaran anggrek Phalaenopsis.Â  Penelitian dilaksanakan di rumah jaring Politeknik Negeri Lampung dari bulan Maret hingga Agustus 2018.Â  Plantlet diaklimatisasikan 4 minggu.Â  Percobaan faktorial dilaksanakan dalam rancangan acak kelompok. Faktor A :Â  macam media bagian bawah (bata/arang).Â  Faktor B :Â  macam media bagian atas (moss sphagnum/pakis/sabut kelapa).Â  Enam kombinasi perlakuan dicobakan (masing-masing dengan 10 ulangan), yaitu:Â  Â P1 (bata+moss); P2 (bata+pakis); P3 (bata+sabut kelapa); P4 (arang+moss); P5 (arang+pakis); dan P6 (arang+sabut kelapa).Â  Peubah yang diamati: 1)Â  persen keberhasilan plantlet menjadi bibit, 2) tinggi bibit, 3) panjang daun, 4) lebar daun, dan 5) jumlah daun.Â Â  Data yang diperoleh dilakukan analisis ragam dan dilanjutkan dengan uji BNJ 5%.Â  Hasil penelitian menunjukkan: 1) Media moss atau pakis dikombinasikan dengan bata maupun arang memberikan persen keberhasilan aklimatisasi plantlet anggrek Phalaenopsis yang paling baik (100%); 2) Tidak terdapat interaksi antara media bagian atas dengan bagian bawah; 3) Kombinasi media yang paling baik bagi pertumbuhan bibit anggrek Phalaenopsis pada tahap pembesaran adalah moss baik dikombinasikan dengan bata ataupun arang, kemudian diikuti oleh pakis (dikombinasikan dengan bata ataupun arang); dan 4) Media sabut kelapa dapat digunakan untuk aklimatisasi dan pembesaran bibit anggrek Phalaenopsis bilaÂ  dilakukan penyiraman yang lebih intensif.
Penerapan Irigasi Tetes Emiter Tali Dengan Bebagai Selang Waktu Irigasi Pada Tanaman Semangka
Authors: Idrus Muhammad Idrus , Surya Surya
Published: May 2020

The objectives of the research were (1) To know watermelon yield and irrigation water productivity of watermelon by used drip irrigation with nylon rope emitter on various time irrigation intervals, (2) To determined the good time irrigation interval for watermelon production by using the drip irrigation with nylon rope emitter. The research was conducted at the research field with four-time irrigation intervals were 1,2,3, and 4 days of time irrigation interval. The research was arranged in Completely Randomized Block Design. The result of the research showed that the time irrigation interval was not significantly affected yield and irrigation water productivity of watermelon. The soil moisture in the root zone at 30 cm depth of 23,23â€”23,88% before irrigation still in range of the available soil moisture content for plants. The average of watermelon yield and irrigation water productivity of watermelon were 5,07â€”5,45 kg/plant and 115,15â€”123,79 kg/m3. The good time interval of irrigation for watermelon production by using drip irrigation with rope emitter was 4 days time interval of irrigation.
Faktor-Faktor Kesediaan Untuk Membayar Beras Kemasan Pada Pasar Swalayan
Authors: Afriani Ismalia , Mardliyah Ainul , Supriyadi Supriyadi
Published: May 2020

The Change of people's shopping preference from traditional markets to shopping centers and modern markets are strongly facilitated by the development of modern markets (small, medium and large retail). This condition contributes the increasingly marketing of labeled packaged rice which offered by the modern market. The purpose of this study is to determine the factors that influence consumers' willingness to pay for packaged rice at supermarkets. The study was conducted for 4 months in June - September in the City of Bandar Lampung, Lampung Province, using the survey method. The research location was chosen purposively, at the Chandra supermarket and Giant Bandar Lampung. The sampling method used in this study is judgment sampling. The method of analysis has done using logistic regression analysis. The results showed that the factors that influence willingness to pay are bidding price, income and comfort factors. The highest value of odds ratio is owned by income factor which means that consumers who have higher income have the opportunity to buy packaged rice at supermarkets
Kombinasi Pupuk Kandang Sapi, Asam Humat Dan Mikoriza Terhadap Infeksi Akar Bermikoriza Tanaman Cabai Dan Ketersediaan Unsur Hara Tanah Udipsamments
Authors: Sukri M. Zayin , Firgiyanto Refa , Sari Vega Kartika , Basuki Basuki
Published: May 2020

This research is an experimental study that aims to examine the combination of cattle manure, humic acid, and mycorrhizae to increase mycorrhizal infections in the roots of chili plants in the Udipsamments soil in Puger District, Jember Regency, which was carried out in May-November 2018. The research design used was a factorial complete randomized block design with 3 factors that were repeated 3 times. The first factor is cattle manure (0 tons / ha, 10 tons / ha, 20 tons / ha), the second factor is humic acid (0 ppm / ha, 200 ppm / ha), and the third factor is mycorrhiza (0 g / plant , 30 g / plant). The results showed that the combination of cattle manure, humic acid, and mycorrhiza inoculants to chili plant roots was able to increase the root mycorrhizal infection of chili plants and increase the nutrients available in the soil by 191.84% for nitrogen and 392.93% for phosphorus.
Penggunaan VUB Padi Untuk Pemanfaatan Lahan Bekas Tambang Pasir Kuarsa di Belitung Timur
Authors: Rusmawan Dede , Muzammil Muzammil
Published: May 2020

The former quartz sand excavation land is a potential land for agricultural land. This land generally contains sufficiently high sand and very low fertility. The use of new superior varieties adaptive and tolerant can increase production. This study was carried out in the experimental field owned by BPTP in Gantong Village, East Belitung Regency, Bangka Belitung Islands Province. The design used was a randomized block design using three types of superior varieties, namely Inpari 22, Inpara 3, and Inpara 5. Each replication was repeated 3 times. Planting uses the jajar legowo system 4:1 (25 x 15) x 40 cm with 2-3 seedlings/planting holes. The fertilizer used is NPK 15:15:15 300 kg/ha and Urea 100 kg/ha. Urea fertilizer is given 3 (three) times each when plants are 7 days after planting (HST) as much as 25%, 25 HST as much as 50%, and 45 HST as much as 25% dose. Lime and organic fertilizer with a dose of 1 ton/ha each. Parameters observed included plant height, number of tillers, and production. The results of the study indicate that the growth of Inpara 5 has better than other varieties. The highest plant height and number of tillers are owned by Inpara 5, but not significantly different than Inpara 3 and Inpari 22. From the aspect of production Inpara 5 (2.23 t/ha) is significantly different from the varieties Inpara 3 (1.51 t/ha) and not significantly different from Inpari 22 (2.21 t/ha).
Efektivitas Ekstrak Daging Buah Nanas (Ananas comosus L.) Dalam Penurunan Indeks Browning Dari Umbi Kentang (Solanum Tuberosum L.)
Authors: Wardanis Putri , Zulkifli Zulkifli , Lande Martha L. , Nurcahyani Endang
Published: May 2020

The purpose of this study was to determine whether the pineapple fruit extract can inhibit theprocess of browning on the potato tubers. This study used Completely Randomized Design(RAL) with 5 levels of pineapple fruit concentration of 0% v/v, 25% v/v. 50% v/v, 75% v/v,and 100% v/v and consist of 5 replications. Qualitative Parameters in this study was the colosurface of potato tubers while quantitative parameters were browning index, total soluble carbohydrate content, and dehydrogenase enzyme activity homogeneity of variance, analysisof variance, and Tukey test were conducted at 5% significant level. Correlations betweendependent and independent variables were determined by linear regression. The resultshowed that the color surface of potato tuber treated with the concentration of pineappleextract 100% v/v was less brown than control and other concentrations. Index browning ofpotato tuber treated with concentration 75% v/v and 100% v/v was significantly decreased. Concentration of pineapple extract was negative linearly correlated to browning index ofpotato tubers. The concentration of pineapple extract 100% v/v increased significantly totalsoluble carbohydrate of potato tubers. The concentration of pineapple extract was positivelinearly correlated to total soluble carbohydrate. The activity of dehydrogenase enzyme ofpotato tuber treated with concentration 100% v/v was significantly increased. Theconcentration of pineapple extract was quadratic correlated to the activity of dehydrogenaseenzyme.
Evaluasi Pelaksanaan Cetak Sawah Di Provinsi Kalimantan Barat
Authors: Darwis Valeriana
Published: May 2020

Food, especially rice, is a basic human ingredient whose needs increase following thepopulation growth. On the other hand the availability of rice has decreased following theland conversion rate. To overcome land conversion and to increase national rice production,the government made policy of paddy expansion / printing. In 2016 this activity isimplemented in 27 provinces and has been printed new fields of 129,096 ha. One of theprovinces that get the rice field printing program is West Kalimantan Province. From theresults of the evaluation, the location of the new paddy fields is in accordance with theobjectives of the program, namely: rice fields have been formed, farmers who work aroundthe location of land and water sources for cultivation is also available. From the paddy fieldexperience of 2016, the improvements required for next year's paddy fields include: (i) preferably planning (SI & D) in advance a year is made than the implementation and (ii) additionalpaddy rice costs, as the cost of expensive tool mobilization and social costs and (iii) a bindingrule in the form of sanctions for the farmer who converted the new fields. As for improvingthe required crop index: water management; subsidizing inputs (seeds, fertilizers, lime, farming tools and cultivation training.
Pengaruh Aplikasi Beberapa Konsentrasi Paclobutrazol dan KOH Terhadap Pertumbuhan dan Produksi Tanaman Ubi Kayu (Manihot Esculenta Crantz)
Authors: Aritonang Prasasti Dame , Ardian Ardian , Setiawan Kukuh
Published: May 2020

This study aimed to evaluate the effect of paclobutrazol and KOH application through leaf togrowth and production of cassava.Â  This study was conducted from March 2017 to October 2018 in an Integrated Field Universityof Lampung. The treatmens was arranged factorially (4 x 4) in a complete randomized block design with 4 replications be avowed as group.Â  The main factor were paclobutrazol consist of P1 = 0 ppm (control, no treatment), P2 = 400 ppm, P3 = 500 ppm and P4 = 600 ppm.Â  The second factor were KOH consist of K1 = 0% (control, no treatment), K2 =0,5%, K3 = 1% and K4 = 1,5 given a week after paclobutrazolâ€™s application.Â  This study used cassava cutting varieties of kasesart.Â  Observation variables were plant height, number of books, number of fresh leaves, fresh weight of leaves, dry weight of leaves, fresh weight of stem, dry weight of stem, fresh weight of tubers, dry weight of tubers.Â  Data of each treatments were calculated its mean value and tested homogeneity.Â  Homogeneous data were analyzed variance and followed by the smallest real difference testat level 5%.The studyâ€™s result showed that paclobutrazol application had inhibited effect the vegetative growth of plant height, number of nodes, fresh and dry weight of stem cassava plants.Â  Application of KOH had a significant effect only on number of fresh leave at 13 week after planted.Â  The interaction of paclobutrazol and KOH treatment had a significant effect on leaf dry weight.Â Â Â
Pendapatan Petani Padi Varietas Hasil Iradiasi Badan Tenaga Nuklir
Authors: Suryati Nila , Amin Zaini , Andry Andry , Humaidi Edy
Published: May 2020

Pada saat ini Badan Tenaga Nuklir sendiri telah menghasilkan 20 varietas baru, 10 diantaranya di kembangkan di Kabupaten Musi Rawas, namun penggunaan benih yang unggul ini cenderung masih rendah, rendahnya penggunaan benih unggul dikalangan petani dikarenakan sebagian besar masyarakat masih mempunyai persepsi yang negatif terkait dengan istilah â€œnuklirâ€,Tujuan penelitian ini mengetahui karakteristik petani dan membandingkan pendapatan sebelum dan setelah petani menggunakan benih padi hasil iradiasi BATAN, penelitian ini dilaksanakan selama 4Â  bulan pada bulan Januari â€“ April 2019 di Kabupaten Musi Rawas Provinsi Sumatera Selatan, dengan menggunakan metode survei. Pengambilan sampel dilakukan secara purposive yaitu anggota kelompok tani yang menggunakan benih padi hasil iradiasi. Untuk penarikan sampel dilakukan dengan menggunakan metode proportionate random sampling dengan proporsi 10%Â  untuk masing-masing kelompok tani ,sehingga diperoleh jumlah sample penelitian sebanyak 139 responden. Teknik Analisis dilakukan secara kualitatif dan kuantitatif. Analisis kualitatif dilakukan untuk mengetahui karakteristik petani yang menggunakan benih padi hasil iradiasi. Analisis kuantitatif dilakukan dengan menggunakan alat analisis usahatani dan analisis uji beda. Hasil penelitian menunjukan bahwa Karakteristik petani yang menggunakan padi varietas iriadisasi rata-rata pada umur 46 tahun, dengan pendidikan terbanyak yakni Sekolah Menengah Atas (SMA) sebanyak 58 orang atau 41,72 %, dengan luasan lahan terbanyak pada rentang <0,25 â€“ 0,5 hektar sebanyak 75 orang atau 53,96 %, serta rata-rata pengalaman usahatani yang dimiliki 20 tahun, pendapatan petani sebelum menggunakan varietas hasil iriadisi BATAN sebesar Rp. 8.318.020 per musim panen, setelah menggunakan benih varietas hasil iradiasi meningkat menjadi Rp. 12.430.018 per musim panen, dengan hasil uji beda t hitung -3,105, dan t table 1,68 serta p-value 0,001<0,05, artinya pendapatan sebelum dan setelah menggunakan benih padi varietas hasil iradiasi BATAN berbedanyataÂ
Sifat Fisik dan Sensori Flakes Pati Garut dan Kacang Merah dengan Penambahan Tiwul Singkong
Authors: Astuti Sussi , S. Suharyono A. , Anayuka ST Aisah
Published: May 2020

Flakes merupakan produk sarapan siap saji yang dapat memenuhi kebutuhan kalori karena mengandung karbohidrat cukup tinggi. Perpaduan umbi garut dan kacang merah serta penambahan tiwul singkong sebagai sumber serat dapat digunakan sebagai bahan baku produk flakes yang kaya gizi dan menyehatkan. Penelitian disusun secara tunggal dalam Â Rancangan Acak Kelompok Lengkap (RAKL) dengan satu faktor yaitu formulasi pati garut dan kacang merah dengan enam perlakuan dan empatÂ  ulangan. Perlakuan faktor tunggal yaitu formulasi pati garut dan kacang merah dengan perbandingan 100% : 0% (F1); 90% : 10 % (F2); 80% : 20% (F3); 70% : 30% (F4); 60% : 40% (F5); dan 50% : 50% (F6). Data dianalisis sidik ragam dan dilanjutkan uji Beda Nyata Jujur (BNJ) pada taraf 5%. Hasil penelitian menunjukkan bahwa formulasi flakes terbaik adalah formulasi F6 (50% pati garut dan 50% kacang merah) yang menghasilkan tekstur (fisik) sebesar 1,47 kgf, sifat sensori flakes dengan skor tekstur sebesar 4,32 (renyah), skor warna sebesar 2,67 (coklat muda), skor rasa dan aroma sebesar 3,47 (agak berasa langu), dan skor penerimaan keseluruhan sebesar 3,87 (suka).Â  Flakes formulasi terbaik memiliki kadar air sebesar 5,17%, kadar abu sebesar 2,81%, kadar protein sebesar 11,53%, kadar lemak sebesar 1,25%, kadar karbohidrat sebesar 79,24%, dan kadar serat kasar sebesar 2,55%.Flakes is a ready to eat product for breakfast that only needs less than 3 minutes to serve.Â  Flakes can supply calories need because it contains high carbohydrates.Â  Combination from roots that contains carbohydrates such as arrowroot and beans which are protein sources such as red beans, with â€œtiwulâ€ cassava addition as fiber source can be used as raw material for flakes that nutrient rich and healthy.Â  The research was a single factor, arranged in a Complete Randomized Design with sixreplications. The factor was the formulation of arrowroot starch and red beans flour consisted of sixlevels, i.e. 100% : 0% (F1); 90% : 10 % (F2); 80% : 20% (F3); 70% : 30% (F4); 60% : 40% (F5); dan 50% : 50% (F6). The data were analyzed by using ANOVA and weretested with LSD test at 5% level of significant. The best formulation was found onflakes produced from 50% arrowroot starch and 50 % red beans flour (F6) with physic properties (texture) was 1,47 kgf, the colorscore of 2,67 (light brown), the flavour and aroma score of 3,47 (little rotten taste), and the overall acceptance score at 3,87 (like).Â  The best flakes has moisture content of 5,17%, ash content of 2,81%, protein content of 11,53%, fat content of 1,25%, carbohydrate content of 79,24%, and crude fiber content of 2,55%. Keywords : arrowroot, red beans, tiwul cassava, flakes
Keragaman Intensitas Serangan Hama Penggerek Buah Kopi (Hypothenemus Hampei Ferrari) Pada Beberapa Sentra Produksi Kopi Robusta Provinsi Lampung
Authors: Erfandari Ovy , Hamdani Hamdani , Supriyatdi Dedi
Published: May 2020

Hama penggerek buah kopi (Hypothenemus hampei Ferrari) merupakan salah satu hama utama pada tanaman kopi.Â  Hama ini dapat menimbulkan kerusakan seperti buah menjadi tidak berkembang, berubah warna menjadi kuning kemerahan dan akhirnya gugur, serta buah berlubang yang pada akhirnya mengakibatkan penurunan kuantitas dan kualitas produksi.Â  Dalam rangka merumuskan dan menerapkan konsep pengendalian hama H. hampei secara terpadu, informasi keragaman tingkat serangan perlu diketahui agar dapat diprioritaskan dan dipetakan teknik pengendalian yang akan diterapkan.Â  Oleh karena itu perlu dilakukan penelitian mengenai â€œKeragaman Intensitas Serangan Hama Bubuk Buah Kopi (H. hampei) pada Beberapa Sentra Produksi Kopi Robusta Provinsi Lampung.Â  Penelitian dilaksanakan di Kabupaten Lampung Barat, Tanggamus, Lampung Utara, dan Way Kanan, pada bulan April sampai September 2019.Â  Pengambilan sampel dilaksanakan dengan metode acak berdasarkan wilayah (Area Random Sampling).Â  Sampel diambil berdasarkan masa panen pada kecamatan terpilih dalam wilayah kabupaten yang telah ditetapkan.Â  Pengambilan sampel diulang sebanyak tiga kali.Â  Pada setiap Kabupaten dipilih tiga petani di tiga kecamatan yang sedang melakukan panen.Â  Pada tumpukan hasil panen petani terpilih diambil sampel buah kopi dengan menggunakan mangkuk.Â  Buah kopi yang terambil dihitung jumlah biji berlubang (A) dan tidak berlubang (B).Â  Kemudian persentase atau tingkat serangan dihitung dengan menggunkan rumus sebagai berikut: 16A A + B x 100%"> .Â  Pengambilan sampel pada petani terpilih dilakukan tiga kali.Â  Data hasil penelitian diolah dengan sidik ragam menggunakan uji Fisher. Nilai tengah perlakuan dibandingkan dengan uji BNT dengan a = 0,05.Â  Selain itu dihimpun data suhu serta tinggi tempat lokasi penelitian yang bersumber dari BMKG Lampung, kemudian dilakukan analisis regresi untuk mengetahui kecenderungan hubungan tingkat serangan dengan tinggi tempat serta suhu lingkungan.
In Vitro Screening Ketahanan Galur Padi (Oryza Sativa) B7 Hasil Rakitan Politeknik Negeri Lampung Terhadap Keracunan Besi (Fe)
Authors: Pradana Onny Chrisna Pandu , Andini Siti Novridha
Published: May 2020

This research aimed to invstigate the response of paddy culture (B7 strain) assembled by Lampung State Polytechnic to the iron toxicity tolerance. The research was done at Plant Tissue Culture Laboratory, Lampung State Polytechnic, from July to September 2019. Treatments were single arranged in a completely randomized design with three replications. The treatment tried was five levels of Fe concentrations (5,6 ppm 28 ppm, 56 ppm, 84 ppm, 112 ppm, and control). Each replication consisted of three culture bottle containing one explant. The homogenity of data was tested using Barlett test. If the assumption were fulfilled then analysis of variance is executed using STATISTIX 10, and then followed by the Honest Significant Difference (HSD) test in 5% alpha for mean separation and RPA analysis. The result of this research showed that the B7 strain has tolerance to iron toxicity until 56 ppm of Fe concentration, it can be concluded from the PAR value of its strain (>0,50). Meanwhile inÂ  84 and 112 ppm of Fe concentration, the RPA value of B7 starin (<0,50), and it is indicate that its strain is sensitive.Â
Elevação dos níveis de CA 19-9 em portadores de Síndrome de Mirizzi na ausência de doença maligna: um relato de caso
Authors: Kairala Rodolpho César Oliveira Mellem , Inês Paula Ananda Chacon , Perduca Rafaella Gregori , Daher Bruna Lima , Silva Bruna Lemos , Lemos Afranio Faria , Zambrana Danilo Rocha Chavez , Silva Caio Cesar Faciroli Contin , Reviriego Cláudio Henrique Formigoni , Pereira Maria Clara Nobrega
Published: May 2020

Objetivo: Descrever o caso raro de elevação dos níveis de CA 19-9 na presença de Síndrome de Mirizzi, uma afecção benigna do trato biliar, sem relação com a presença de doença maligna. Relato de caso: Mulher, 61 anos, admitida ao serviço de emergência com história de dor abdominal em epigástrio, com irradiação para hipocôndrio direito e dorso, associada a episódios de náuseas e vômitos, além de quadro de icterícia com colúria e acolia fecal. Durante investigação diagnóstica apresentava CA 19-9 de 8.962U/mL, foi realizada colangioressonância, a qual evidenciou imagem sugestiva de síndrome de Mirizzi. Paciente submetida colecistectomia videolaparoscópica associada a colangiopancreatografia retrógrada com passagem de dreno plástico intra-colédoco, apresentando intensa drenagem de conteúdo biliar para duodeno. No seguimento, paciente permaneceu sem intercorrências ou evidências de doença maligna, com redução dos níveis séricos de CA 19-9 para 28,9U/mL após 12 semanas da cirurgia. Considerações finais: A síndrome de Mirizzi, ainda que pouco frequente, é uma das possibilidades etiológicas para a elevação do marcador tumoral CA 19-9. É um diagnóstico benigno para situações que cursam com elevação do antígeno carboidrato de superfície celular, que tem seu valor de referência normalizado após tratamento cirúrgico do processo obstrutivo.
Identification of Atovaquone, Ouabain and Mebendazole as FDA Approved Drugs Tar-geting SARS-CoV-2 (Version 4)
Authors: Farag Ayman , Wang Ping , Boys Ian N. , L. Eitson Jennifer , Ohlson Maikke B. , Fan Wenchun , McDougal Matthew B. , Ahmed Mahmoud , W. Schoggins John , Sadek Hesham
Published: May 2020

The newly emerged coronavirus, SARS-CoV-2, and the resulting COVID-19 disease, has spread swiftly across the globe since its initial detection in December 2019. Given the heavy toll of this pandemic, therapeutic options for treatment are urgently needed. Here, we adopted a repositioning approach using in-silico molecular modeling to screen FDA-approved drugs with established safety profiles for potential inhibitory effects against SARS-CoV-2. We used structure-based drug design to screen more than 2000 FDA approved drugs against SARS-CoV-2 main protease enzyme (Mpro) substrate-binding pocket, focusing on two potential sites (central and terminal sites) to identify hits based on their binding energies, binding modes, interacting amino acids, and therapeutic indications. We additionally screened the top hits from both sites for potential covalent binding via nucleophilic thiol attack of Cys 145. High-scoring candidates were then screened for antiviral activity against infectious SARS-CoV-2 in a cell-based viral replication assay, and counterscreened for toxicity. Atovaquone, Mebendazole, and Ouabain exhibited antiviral efficacy with IC50s well within their respective therapeutic plasma concentrations (low nanomolar to low micromolar range), and limited toxic effects. Notably, all three were predicted in docking studies to covalently bind SARS-CoV-2 Mpro, underscoring the utility of this in-silico approach for identifying putative antivirals for repurposing. These results do not confirm efficacy in animal models or in humans, but rather serve as a starting point for testing the antiviral potential of select FDA-approved drugs, either individually or in combination.
Complex Excited State Polarizabilities in the ADC/ISR Framework
Authors: Scheurer Maximilian , Fransson Thomas , Norman Patrick , Dreuw Andreas , Rehn Dirk R.
Published: May 2020

We present the derivation and implementation of complex, frequency-dependent polarizabilities for excited states using the algebraic-diagrammatic construction for the polarization propagator (ADC) and its intermediate state representation (ISR). Based on the complex polarizability we evaluate C6 dispersion coefficients for excited states. The methodology is implemented up to third order in perturbation theory in the Python-driven adcc toolkit for the development and application of ADC methods. We exemplify the approach using small model systems and compare it to results from coupled-cluster theory and from experiments.
MALDI-TOF/TOF Tandem Mass Spectrometry Imaging Reveals Non-uniform Distribution of Disaccharide Isomers in Plant Tissues
Authors: zhan lingpeng , huang xi , xue jinjuan , liu huihui , xiong caiqiao , wang jiyun , nie zongxiu
Published: May 2020

Mass spectrometry imaging (MSI) has been increasingly utilized in investigating the locations of biomolecules within tissues. However, the isomeric compounds are rarely distinguished in the MS images, due to inability of MSI methods to differentiate isomers in the probing area. Coupling tandem mass spectrometry with MSI can facilitate differentiating isomeric compounds in ion images. Here we apply MALDI-TOF/TOF tandem mass spectrometry imaging approach to revealing the spatial distributions of isomeric disaccharides in plant tissues. First, the MS/MS imaging analysis of disaccharide-matrix droplet spots demonstrated the feasibility of distinguishing isomeric species in tissues, by measuring the relative intensity of specific fragments. Then, we conducted tandem MS imaging of disaccharides in onion bulb tissues, which indicated that sucrose and other unknown non-sucrose disaccharides exhibit heterogeneous locations throughout the tissues. This method enables us to image disaccharide isomers differentially in biological tissues, and to discover new saccharide species in plant. This work also emphasizes the necessity of considering isobaric compounds when interpreting MSI results.
Screening of Anticancer Drugs as Potential Candidates to Target COVID-19 Disease
Authors: Gurjar Gayatri
Published: May 2020

The current work was focused on predicting the potential of several anticancer drugs as potential inhibitors of COVID-19 disease. The work was accoplished using molecular docking performed using SwissDock tool. Information about COVID-19 proteins and anticancer drugs from databases like PDB, PubChem and Drugbank has been incorporated appropriately in the manuscript. Data analysis has revealed some highly promising anticancer drugs which can further be critically analyzed through both computational and biological validation methods.This work was intended to support the urgent need of finding drugs/remedies against COVID-19. The results can be a foundation for other researchers around the world to further validate/test these anticancer agents against the pathogen.