Journal of Tropical Industrial Agriculture and Rural Development最新文献

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The exploration of Bacillus spp. as antagonist agents against Xanthomonas axonopodis pv. glycines from the weed phyllosphere in soybean plantation 芽孢杆菌拮抗轴索黄单胞菌的研究。大豆种植中杂草叶层的甘氨酸

Journal of Tropical Industrial Agriculture and Rural Development Pub Date : 2020-06-10 DOI: 10.19184/jtiard.v1i1.16411

Suhartiningsih Dwi Nur Cahyanti, D. L. W. N. Ayu

{"title":"The exploration of Bacillus spp. as antagonist agents against Xanthomonas axonopodis pv. glycines from the weed phyllosphere in soybean plantation","authors":"Suhartiningsih Dwi Nur Cahyanti, D. L. W. N. Ayu","doi":"10.19184/jtiard.v1i1.16411","DOIUrl":"https://doi.org/10.19184/jtiard.v1i1.16411","url":null,"abstract":"Bacterial pustules caused by Xanthomonas axonopodis pv. glycines (Xag) is one of the important diseases in soybean plants. Bacillus bacteria from the soybean phyllosphere have the potential to inhibit these pathogens. Weed phyllosphere in soybean plantations is also a good habitat for Bacillus life. The purpose of this study was to obtain Bacillus from the weed phyllosphere which has the potential as an antagonistic agent against Xag. The study methods included exploration, screening, and physio-biochemical identification. The results obtained 31 isolates and 22 of them were able to inhibit Xag with various inhibitory properties. Five strains of Bacillus spp. had large inhibitory effects against Xag, namely strain Bp 2(2), Jg3(3), Bg d1(1), Jg 1(3) and Jg 1(4)1. The Bacillus strain Bp2(2) had the largest inhibition zone witht 15 mm and strain Jg1(4)1 had the fastest colony growth with 68 mm. Five Bacillus spp had different growth capability based on the environmental condition and carbon source. The physio-biochemical identification results indicated that Bacillus strain Jg 3(6), Bg d 1(1), Jg 1(3), Jg 1(4)1 had the similar characteristics to B. licheniformis, while strain Bp 2(2) had the similar characteristics to B. coagulans.","PeriodicalId":334310,"journal":{"name":"Journal of Tropical Industrial Agriculture and Rural Development","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134644785","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}

引用次数: 2

Manipulation of microhabitat by polyculture planting system as ecosystem stabilizer for management of pests and natural enemies in shallot (Allium ascalonicum Linn.) 复合栽培系统对小葱微生境的调控及其对害虫和天敌管理的生态稳定作用

Journal of Tropical Industrial Agriculture and Rural Development Pub Date : 2020-06-10 DOI: 10.19184/jtiard.v1i1.16415

S. Prastowo, Rizal Sukarno

{"title":"Manipulation of microhabitat by polyculture planting system as ecosystem stabilizer for management of pests and natural enemies in shallot (Allium ascalonicum Linn.)","authors":"S. Prastowo, Rizal Sukarno","doi":"10.19184/jtiard.v1i1.16415","DOIUrl":"https://doi.org/10.19184/jtiard.v1i1.16415","url":null,"abstract":"Shallot (Allium ascalonicum Linn.) is one of important commodities for Indonesian people, yet its production is still limited by pest attack This research was conducted in Banyuputih Village, Wringin Subdistrict, Bondowoso Regency from July to October 2019. This study applied a Randomized Block Design (RBD) with six treatments, namely: P1 = Polyculture of shallot + lemongrass; P2 = Polyculture of shallot + celery; P3 = Polyculture of shallot + mustard; P4 = Polyculture of shallot + lemongrass + mustard; P5 = Polyculture of shallot + celery + mustard; P6 = Monoculture of shallot. Each treatment was repeated 4 times. Observation was started when plant was at the age of 30 days after planting. Data collection was done by directly observing the sample plants. Sampling was carried out using Yellow trap and pit fall trap. A total of 10 samples were collected from each plot with interval of 4 days. Observation included collecting the pest insects and natural enemies that were found, counting the number of populations of each species, and scoring towards the damage plants. The results showed that shallot planting by polyculture with different types of plants affected the population of pests and natural enemies as well as the level of diversity of insects in shallots. Planting shallots by polyculture has been proven to control pest population compared to planting shallots by monoculture. Polyculture planting with two types of plants was found to produce better outcome than polyculture planting with three types of plants with best treatment observed in P1, namely polyculture of shallot and lemongrass which resulted in the lowest pest population of 17.5.","PeriodicalId":334310,"journal":{"name":"Journal of Tropical Industrial Agriculture and Rural Development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115218210","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}

引用次数: 1