JURNAL AGROTROPIKA最新文献

{"title":"Pengaruh Priming pada Vigor Benih Kedelai (Glycine max. [L] Merrill) yang Dikecambahkan pada Tanah Masam","authors":"Nabila Lutfiah, A. ., P. B. Timotiwu","doi":"10.23960/ja.v20i2.5269","DOIUrl":"https://doi.org/10.23960/ja.v20i2.5269","url":null,"abstract":"The need of soybeans continuously increases due to the increasing of human population. The germination of soybeans seeds in the acid soil such as ultisol soil often experienced barrier. One of the ways to improve seed germination in the acid soils is to give priming treatment on the seeds. The research was conducted in the green house of the Integrated Field Laboratory, Faculty of Agriculture, the University of Lampung. It was conducted from December 2020 to March 2021. The research used factorial treatment that was applied in the Completely Random Design with three replicates. The Tukey’s Honestly Significance Difference with 5% level of significance was used to compare the average of treaments. Data analyzing was done by using R studio statistics program. The first factor  was kinds of priming which consisted of without priming as a controle, water priming within 12 hours, KNO3 1% within 3 hours, KNO3 2% within 6 hours, GA3 50 ppm within 14 hours, GA3 100 ppm within 14 hours, and PEG 7,5% within 24 hours. The second factor was three soybean seed varieties, i.e. Anjasmoro, Burangrang, and Grobogan. Results showed that Giberelin priming of 50 ppm for 14 hours was the best priming in seedling emergence in the ultisol soils. The Burangrang soybean seeds showed the best T50% and the number of radicles appeared in the first day. The Anjasmoro soybean seeds showed the best response in the dry weight of normal seedling and hypocotyls lenght of normal seedling in the ultisol soils.Key Words: Priming, soybean, ultisol, variety","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131015882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Pemberian Dosis Pupuk NPK dan Jenis Pupuk Hayati terhadap Pertumbuhan dan Produksi Tanaman Bawang Merah (Allium ascalonicum L.)","authors":"Kus Hendarto, Setyo Widagdo, Sri Ramadiana, Fitri Meliana","doi":"10.23960/ja.v20i2.5086","DOIUrl":"https://doi.org/10.23960/ja.v20i2.5086","url":null,"abstract":"Shallots (Allium ascalonicum L.) is one of the leading vegetable commodities used as food seasoning and traditional medicine. This study aims to see the effect of providing various doses of NPK fertilizer and types of biological fertilizers on the growth and production of shallot plants. This study used a randomized block design (RAK) arranged in a factorial (4 x 2). The first factor is the NPK fertilizer dosage which consists of four levels, namely: N0= 0% (without NPK fertilizer), N1= 50% (25 g/m2), N2= 100% (50 g/m2), and N3= 150% (75 g/m2). The second factor is the type of biological fertilizer which consists of two levels, namely: H1= Grikulan plus fertilizer and H2= EM4. The results showed that the NPK fertilizer dosage treatment up to a dose of 75g/m2 gave the best results on plant growth and development, including the number of leaves, plant height, fresh tuber weight per plant, wind dry tuber weight per plant, and wind dry tuber weight per m2. The growth and development of shallot plants with the application of Grikulan biological fertilizers were better than those of EM4 biological fertilizers. Treatment of NPK fertilizer dosage of 150% or equivalent to 75 g / m2 supplemented with the application of Grikulan plus fertilizer results in higher production, namely the weight of dry tubers per m2 reaching 1674.33 g or equivalent to 11.72 tonnes/ha. Keywords : EM4, Grikulan plus, shallots,NPK, yield","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129213454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH FORMULASI BIOCHAR DAN LIMBAH KULIT KOPI TERHADAP PERTUMBUHAN BIBIT KOPI","authors":"Fitri Yelli, Hanisah Hanisah, Rusdi Evizal, Sugiatno Sugiatno","doi":"10.23960/JA.V19I2.4544","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4544","url":null,"abstract":"Coffee husk is the main waste of coffee bean production using a dry processing system. Coffee husk is returned to the coffee plantation as mulch, or used as a mixture for nursery media and for making bio-charcoal. This study aims to determine the effect of the formulation of biochar, coffee husk, and soil on the growth of Arabica coffee seedlings. The experiment used a randomized block design (RBD) consisting of 6 treatments with 4 replications. The treatments were the composition of the ratio of biochar: coffee husk: soil (v / v / v), namely: 0: 1: 2 (control, without biochar), 1: 1: 2, 1: 0: 2 (without coffee skin), 2: 1: 2, 1: 2: 2, and 1: 1: 1. The coffee husk biochar is made by a slow burning system in a stack. The results showed that: (1) The treatment of biochar composition, coffee husk and soil had an effect on the number of leaves, length x leaf width, crown dry weight, fresh weight quality index, and dry weight quality index; (2) biochar mixing treatment did not increase seedling growth. Mixing biochar with a composition of 1: 1: 2 reduces root growth; (3) the composition of biochar, coffee husk and soil 1: 1: 2 gave better seedling growth than the composition 0: 1: 2 (control without biochar) based on the quality index of fresh seedling and dry seedling.Keywords: Arabica, biochar, coffee husk, growth, seedling, quality indeces","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115913613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESPONS VARIETAS DAN MUSIM TANAM TERHADAP PERTUMBUHAN, HASIL DAN KUALITAS JAMUR TIRAM","authors":"Deden Fatchullah, R. Rahman, Endeh Masnenah","doi":"10.23960/JA.V19I2.4395","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4395","url":null,"abstract":"Oyster mushroom was a prospective vegetable commodity and has high economical value. The aim of this research was to find out oyster mushroom varieties that could be adapted in Bogor – West Java, and produced high yield and quality when cultivated both in the dry and rainy seasons. A Randomized Block Design with 4 replications were set up in mushroom houses during the dry and the rainy seasons. Treatments comprised of 6 varieties of oyster mushrooms, viz: varieties No. 1; 30; 37; 38; 46 (origin from IVEGRI’s collection) and No. 85 (origin from Bogor as control variety). The result showed that varieties and planting seasons has significantly effect on growth of oyster mushroom. However varieties has no significantly effect on yield of mushroom which was in average 55-91 ton/1000 m2 of mushrooms house area. Fresh yield of mushroom planted in dry season (91.3 ton) was significantly higher than those in wet season (61.7 ton). Varieties has significantly effect of mushroom quality, meanwhile seasons gave a same good quality with delicious/ ranking <3, storage resistance up to 2 days at room temperature and water content >90 %. Keywords: Planting season, Pleurotus ostreatus, growth, yield, quality","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126857989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH JUMLAH TANAMAN INANG TERHADAP INFEKSI AKAR DAN PRODUKSI SPORA FUNGI MIKORIZA ARBUSKULAR","authors":"M. Rini","doi":"10.23960/JA.V19I2.4391","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4391","url":null,"abstract":"Fungi mikoriza arbuskular (FMA) hidup di akar tanaman dan memberikan banyak manfaat untuk tanaman inangnya. Salah satu faktor yang mempengaruhi produksi spora FMA adalah pertumbuhan tanaman inang. Oleh karena itu, penelitian ini bertujuan untuk mencari jumlah tanaman inang yang sesuai untuk memproduksi FMA. Peneltian menggunakan rancangan perlakuan tunggal tidak terstruktur, yaitu jumlah tanaman inang yang terdiri dari 1 tanaman/pot (t1), 2 tananam/pot (t2), 3 tananaman/pot (t3), 4 tanaman/pot (t4), dan 5 tanaman/pot (t5).  Setiap perlakuan diulang sebanyak 4 kali. Rancangan percobaan mengguanakan rancangan acak kelompok. Kecambah tanaman jagung berumur 3 hari diinokulasi dengan 2 spora Glomus sp. isolat P-186-2. Kecambah kemudian ditanam di tengah-tengah pot berukuran 1100 ml yang telah diisi dengan campuran pasir sungai steril dan zeolite (1:1 =V:V). Kecambah jagung ditambahkan jika jumlah tanaman inang lebih dari satu. Tanaman dipelihara di rumah kaca selama 3 bulan setelah inokulasi. Hasil penelitian menunjukkan bahwa semua perlakuan menghasilkan persen infeksi akar yang tidak bebeda dengan nilai infeksi >70%. Namun,  jumlah tanaman inang jagung 5 tanaman pot menghasilkan jumlah spora tertinggi dibandingkan dengan perlakuan lainnya.","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128898031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH PENGGUNAAN PACLOBUTRAZOL, KNO3 DAN ETEFON PADA PEMACUAN PEMBUNGAAN TANAMAN MANGGIS (Garcinia mangostana L.)","authors":"N. Syafitri, Agus Karyanto, Rugayah Rugayah, Setyo Widagdo","doi":"10.23960/JA.V19I2.4545","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4545","url":null,"abstract":"Mangosteen (Garcinia mangostana L.) is a tropical plant that bears seasonal fruit and is one of Indonesia's leading export commodity.  Mangosteen production in Indonesia is still low and not continuous, because there are several factors that influence it.  One of them is the character of biennial bearing in mangosteen one year produce high fruit load followed by a next year of very low production.  Therefore it is necessary to induce off season mangosteen flowering.  This study aims to determine: (1) the effect of Paklobutrazol on the flowering of mangosteen plants, (2) the effect of adding KNO3 and Etefon on the acceleration of mangosteen flowering.  This research was conducted in Mulangmaya Village, Kota Agung Timur District, Tanggamus, Lampung.  Regency at an altitude of 250 m above sea level from September 2018 to April 2019.  This research used a Randomized Block Design (RBD) with a single factor consisting of 3 treatments, namely P1 ( manure 10 kg/plant + NPK Nitrophonska 1 kg/plant, P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), and P3 (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant).  The data obtained were analyzed by analysis of variance and the mean separation was carried out by orthogonal contrast test at the 5% significance level.  The results showed that the treatment of P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant) on mangosteen plants was able to spur flowering faster with a difference of 12 days (8.70% ), and increased the total number of fruits per plant by a difference of 41 fruit (38.80%).  The P3 treatment (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), unexpectedly causing significant leaf drop 3 days after Ethephon spray, and new leaves were formed a month later.  Keywords : Ethephon, KNO3, Paclobutrazol, and mangosteen flowering","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124150884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EFEKTIVITAS FORMULASI BIOHERBISIDA EKSTRAK BUAH LERAK DENGAN PENAMBAHAN ADJUVAN TERHADAP PERKECAMBAHAN GULMA Ludwigia octovalvis","authors":"Hidayat Pujisiswanto, Sunyoto Sunyoto, N. Sriyani, Melinda Pratiwi","doi":"10.23960/JA.V19I2.4546","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4546","url":null,"abstract":"The abundance of weeds in cultivated land can directly inhibit competition of plants growth. Weed control using bioherbicides is one of eco-friendly alternative. This research aims to determine the bioherbicide formulation of lerak fruit extract with the addition of adjuvants which can inhibit the germination of Ludwigia octovalvis. The research was conducted at the Weed Laboratory of the Faculty of Agriculture, University of Lampung in December 2019 - March 2020. The researcher used Complete Randomized Design (CRD) with four replications.  The research treatments consisted of lerak fruit extract + KAO adjuvant, lerak fruit extract + VCO, lerak fruit extract + Tween, pure lerak fruit extract, and control (aquades). The results showed that the application of 50% (500 g / l) lerak fruit extract with the addition of VCO, KAO, and Tween adjuvants at a concentration of 2% (20 ml/l) was able to inhibit weed germination Ludwigia octovalvis by 95%-100%. The application of lerak fruit extract with the addition of a 2% concentration of VCO adjuvant was the most effective in inhibiting weed germination Ludwigia octovalvis. Keywords : adjuvants, Bioherbicide, Sapindus rarak, Ludwigia octovalvis, weed","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131760377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POTASIUM AND MICRO FERTILIZERS APPLICATION FOR IMPROVING CASSAVA PRODUCTION HARVESTING AT 7 AND 10 MONTH AFTER PLANTING","authors":"K. Setiawan","doi":"10.23960/JA.V19I2.4405","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4405","url":null,"abstract":"ABSTRACTThe harvest of cassava usually conducted by farmers in Lampung province is around 7 months after planting (MAP).  Moreover, either farmers or industry cassava rarely fertilized by using potassium (KCl) and also micro fertilizers to improve the cassava production.  This condition could decrease the production both root weight and strach content.  Consequently, the objective of this study was to evaluate the cassava production applied by potassium and micro fertilizers harvested at 7 and 10 MAP.  Treatments were arranged by factorial (2x2) in completely randomized block design with three reps used as block.  First factor were First factor was two levels of KCl, 200 and 300 kg KCl/ha.  Second factor was two levels of micro nutrient, 0 and 20 kg zincmicro nutrient/ha.  The result showed that there was no variation of root number and root weight due to application of potassium and micro fertilizers.  This means that root number and root weight were not significantly different applied by potassium and micro fertilizers.  In addition, application of potassium and micro fertilizers could significantly influence shoot growth as stem dry weight and leaf dry weight at 10 MAP.Keywords: harvest, leaf dry weight, micro fetilizer, potassium, production, stem dry weight ABSTRAKCara panen ubikayu yang biasa dilakukan di tingkat petani adalah sekitar tanaman umur 7 bulan setelah tanam (BST).  Selain itu, petani maupun pihak industri sangat jarang melakukan pemupukan kalium (KCl) maupun unsur mikro untuk perbaikan produksi ubikayu.  Hal ini akan menyebabkan penurunan produksi baik dari bobot ubi maupun kadar pati.  Oleh karena itu, tujuan penelitian ini adalah untuk mengevaluasi produksi ubikayu akibat aplikasi pemupukan kalium (KCl) dan mikro pada umur panen 7 dan 10 BST.  Perlakuan disusun secara faktorial (2x2) dalam rancangan kelompok teracak lengkap (RKTL) dengan tiga ulangan sebagai kelompok.  Faktor pertama adalah aplikasi dua dosis pupuk KCL, 200 dan 300 kg KCl/ha.  Faktor kedua adalah aplikasi dua dosis pupuk mikro, 0 dan 20 kg Zincmikro/ha.  Hasil menunjukkan bahwa tidak ada variasi pada variabel jumlah ubi dan bobot ubi akibat pemupukan kalium dan mikro.  Hal ini menggambarkan bahwa aplikasi pupuk kalium dan mikro menghasilkan jumlah ubi dan bobot ubi yang tidak berbeda.  Selanjutnya, aplikasi pupuk kalium dan mikro memberikan pengaruh pada variabel pertumbuhan tajuk seperti bobot kering batang dan daun pada umur 10 BST.Kata kunci: bobot kering batang, bobot kering daun, kalium, mikro, panen, produksi","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132042505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Keragaan dan Produktivitas Perkebunan Lada Tumpangsari Kopi di Lampung Utara","authors":"F. Prasmatiwi, Rusdi Evizal","doi":"10.23960/JA.V19I2.4579","DOIUrl":"https://doi.org/10.23960/JA.V19I2.4579","url":null,"abstract":"North Lampung Regency is the main producer of Lampung black pepper, which is generally in the form of a poly-culture system of pepper cultivation. This study aims to study the performance and productivity of the pepper plant which is intercropped with coffee by farmers in North Lampung. This study used a survey method and conducted in North Lampung by taking 2 samples of the sub-districts purposively, namely Abung Barat and Abung Tengah. From each district, 2 villages were selected purposively. Primary data were collected by interviewing 93 sample farmers who were randomly sampled. To deepen the performance of planting, visits and observations of farmers' fields were conducted. The results of this study concluded that: (1) 96% of farmers applied a poly-culture pepper plantation system. Intercropping pepper plantations have a lower pepper plant population but the presence of intercropping can cause land use efficiency to increase by up to 30%;(2) The poly-culture pepper fields  are managed less intensively as indicated by the low fertilizer dosage and the high mortality rate of pepper, which reaches 7-10% of plants per year; (3) The productivity of this intercropping system is pepper yield (conversion of SPH 1600 trees / ha) reaching 230-260 kg / ha or based on factual population reaching 155-267 kg/ha, coffee yield 166-221 kg/ha, and yield of Pithecellobium jiringa 24 -28 kg/tree; (4) According to farmers' perceptions, the main constraints faced by farmers (80.2% of farmers) were the attack of pepper foot rot disease, low prices for pepper, and high mortality of pepper trees. However, most farmers (88.9% of farmers) said they would not replace pepper with other crops.Keywords: Black pepper, coffee, Pithecellobium jiringa, poly-culture, yield","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"61 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132638741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"VIABILITAS BENIH KEDELAI (Glycine max [L.] Merril) SEJALAN DENGAN PENYIMPANAN ALAMIAH DAN PENGUSANGAN CEPAT DENGAN ETANOL","authors":"Eko Pramono, M. S. Hadi, M. Kamal","doi":"10.23960/JA.V19I1.4329","DOIUrl":"https://doi.org/10.23960/JA.V19I1.4329","url":null,"abstract":"Storing seeds always causes deterioration, mainly due to the long storage time and rapid aging treatment using ethanol. This study aimed to compare the viability of soybean seeds due to the natural storage period and due to accelerated aging with ethanol. The lot of Argomulyo soybean seeds was divided into five subloties. Sublot-1 was the soybean seeds given a natural storage under temperature of ± 26 ºC for 12 months. Sublot-2 was the soybean seeds given a natural storage under temperature of ± 18 ºC for 12 months. Sublot-3 was the soybean seeds applicated with the treatments of the absorption period 0-12 hours to ethanol solution of 8 % (LPLE8). Sublot-4 was soybean seeds applicated with the treatments of the exposure periods 0-180 minutes to saturated ethanol 96% vapour (LDUJE). Sublot-5 was soybean seeds applicated with the treatments of imbibition periods 0-24 hours prior to be exposured on saturated 96% ethanol vapour for 40 minutes (LIPPC).  The main variable observed was the percentage of normal seedlings (PKN). The rate of decline in the viability of soybean seeds during storage of 0-12 months under the storage room temperature of 26 C or 18 C respectively a) was greater than that treated with ethanol-8% absorption period of 0-12 hours, and b) did not differ from those treated with 96% 0-180 minutes ethanol saturated vapor treatment period and treated with 0-24 hour imbibition period before exposure to 96% ethanol saturated vapor for 40 minutes. Keywords: Aging, ethanol, normal seedling, seed viability, storage","PeriodicalId":274098,"journal":{"name":"JURNAL AGROTROPIKA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130310996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}