Journal of Applied Agricultural Science and Technology最新文献_第7页

Decreasing Levels of BOD, COD and Oil in Palm Oil Mill Effluent (Pome) Using Scale Up Experiment of Symbiosis Mutualism Technology Between Microalgae Chorella Sp and Agrobost 微藻藻与Agrobost共生共生技术规模试验降低棕榈油厂废水中BOD、COD和油脂含量

Journal of Applied Agricultural Science and Technology Pub Date : 2020-08-31 DOI: 10.32530/jaast.v4i2.155

Y. Zalfiatri, F. Restuhadi, A. Pramana, Fajar Yuliandri

引用次数: 2

Endophytic Bacterial Consortia as Biological Control of Bacterial Leaf Blight and Plant Growth Promoter of Rice (Oryza sativa L.) 内生菌联合体对水稻细菌性叶枯病的生物防治及植物生长促进剂

Journal of Applied Agricultural Science and Technology Pub Date : 2020-08-31 DOI: 10.32530/jaast.v4i2.146

Z. Resti, Y. Liswarni, M. Martinius

{"title":"Endophytic Bacterial Consortia as Biological Control of Bacterial Leaf Blight and Plant Growth Promoter of Rice (Oryza sativa L.)","authors":"Z. Resti, Y. Liswarni, M. Martinius","doi":"10.32530/jaast.v4i2.146","DOIUrl":"https://doi.org/10.32530/jaast.v4i2.146","url":null,"abstract":"The consortia of endophytic bacteria with various mechanisms (competition, antibiotics, induction of resistance, and others), simultaneously, are more effective in controlling pathogens and increasing plant growth. The purpose of this study was to obtain endophytic bacterial consortia capable of suppressing of bacterial leaf blight and promoting the growth of rice plants. The study consisted of three experimental stages. The first stage was the test on the antibiosis ability of the endophytic bacterial consortia to suppress of pathogenic bacteria Xanthomonas oryzae pv. oryzae (Xoo) using the Kirby Bauer method. The second stage was the test on the ability of endophytic bacterial consortia to promote the growth of rice seedlings. The experiment was arranged in a Completely Randomized Design (CRD) which consisted of six combinations of endophytic bacterial consortia and 15 replications within each combination. The endophytic bacterial consortia were introduced by soaking the seeds, and the observations were made on the plant height, number of leaves, root length, fresh weight, and dry weight of rice seedlings. Meanwhile, the third stage was the test on the ability of endophytic bacterial consortia to suppress of bacterial leaf blight (BLB) diseases and to promote the rice plant growth. The experiment was arranged in a Completely Randomized Design (CRD) with six combinations of endophytic bacterial consortia and five replications within each combination. The endophytic bacterial consortia were introduced by soaking the roots of the seedlings. The observations were made on the incidence of disease, disease severity, number of leaves, plant height, and number of tillers. The results showed that all endophytic bacterial consortia had antibiosis abilities. The best endophytic bacterial consortia for controlling bacterial leaf blight and promoting the growth of rice seedlings and plants were the C (Bacillus sp SJI; Bacillus sp HI) and D (Bacillus sp SJI; S.marcescens isolate JB1E3) consortia.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78615411","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: 4

A Study on The Effect of Sic on Mechanical Properties of Carbon/Banana Peduncle Fiber Reinforced Epoxy Composites Sic对碳/香蕉柄纤维增强环氧复合材料力学性能影响的研究

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.105

S. Sridhar, R. Patil, Aaquib Ashfaq, H. Vardhan, Ajay Kumar

引用次数: 0

Pellet Formulation of Trichoderma Isolated from Aceh with Potential for Biocontrol of Phytophthora Sp. on Cacao Sedlings 亚齐木霉颗粒剂对可可幼苗疫霉防治潜力的研究

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.120

R. Sriwati, Tjut Chamzhurni, A. Alfizar, B. P. Soekarno, V. Maulidia, Irza Sahputra

引用次数: 0

Chemical Characteristics Comparison of Palm Civet Coffee (Kopi Luwak) and Arabica Coffee Beans 棕榈果子狸咖啡(Kopi Luwak)和阿拉比卡咖啡豆的化学特性比较

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.110

I. Ifmalinda, I. Setiasih, M. Muhaemin, S. Nurjanah

{"title":"Chemical Characteristics Comparison of Palm Civet Coffee (Kopi Luwak) and Arabica Coffee Beans","authors":"I. Ifmalinda, I. Setiasih, M. Muhaemin, S. Nurjanah","doi":"10.32530/jaast.v3i2.110","DOIUrl":"https://doi.org/10.32530/jaast.v3i2.110","url":null,"abstract":"Chemical characteristics of coffee are depended on types of coffee. Different types of coffee have the unique characteristic. Chemical components have significant effects on taste and aroma of brewing. Those characteristics are the result of volatile and nonvolatile components during roasting then affecting taste. Kopi Luwak has distinct chemical and taste from regular coffee. On previous research, Marcone (2004b) and Mahendratta et al. (2011) explained that quality improvement on Kopi Luwak is result of lower protein content and higher fat content compared to regular coffee. Lower protein content reduces bitter taste while higher fat content can increase body or feeling heavy. The aim of this research was to obtain information about chemical compound of Kopi Luwak and regular Arabica coffee. From this study, it can be analyzed that protein content of regular green coffee beans was 9.48%, and regular roasted bean was 11.3% while protein content of Kopi Luwak green bean was 8.8%, and its roasted bean was 10.12%. Further, caffeine content had been analyzed where regular coffee beans contained 0.70% and its roasted bean contained 0.61% while caffeine content of green bean from Kopi Luwak was 0.51%, and its roasted bean was 0.47%. pH valued was also observed where regular green bean was 6.7 and regular roasted bean was 6.9 while green bean of Kopi Luwak was 5.3 and its roasted bean 5.7. Moreover, sugar content of regular coffee beans was 1.9% and its roasted bean was 0.015% while sugar content of Kopi Luwak green bean was 1.6% while its roasted bean was 0.013%. Fat content of regular green coffee beans was 8.5% and its roasted bean was 11.7% while fat content of Kopi Luwak green bean was 9.3% and its roasted bean was 12.2%. Fatty acid content of regular coffee beans consisted of hexadecanoic acid with area 40.3%, Kopi Luwak bean was 44.3%, and octadecenoic content with area 2.46% while Kopi Luwak bean was 7.12%.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79026235","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: 7

The Antioxidant Characteristics of The Liquid Smoke of Cocoa Shell ( Theobroma cacao, l ) In Different Water Content Variations 不同含水量条件下可可壳液烟的抗氧化特性

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.106

I. Budaraga, E. Susanti, Asnurita Asnurita, E. Nurdin, Ramaiyulis Ramaiyulis

引用次数: 4

Accelerated Shelf Life Test (Aslt) Method with Arrhenius Approach for Shelf Life Estimation of Sugar Palm Fruit Jam With Addition of Asian Melastome (Melastoma malabathricum, l.) on Jar Packaging and Pouch 用阿伦尼乌斯法测定加了亚洲黑蜡霉(Melastoma malabathicum, l.)的糖棕榈果酱在瓶包装和袋装上的保质期

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.114

Anna Anggraini, K. Sayuti, R. Yenrina

{"title":"Accelerated Shelf Life Test (Aslt) Method with Arrhenius Approach for Shelf Life Estimation of Sugar Palm Fruit Jam With Addition of Asian Melastome (Melastoma malabathricum, l.) on Jar Packaging and Pouch","authors":"Anna Anggraini, K. Sayuti, R. Yenrina","doi":"10.32530/jaast.v3i2.114","DOIUrl":"https://doi.org/10.32530/jaast.v3i2.114","url":null,"abstract":"Abstract. Base on previous studies showing that sugar palm fruit can be made as jam with the addition of Asian melastome fruit as a natural coloring. This sugar palm fruit jam product is packaged with jar and pouch packaging. shelf Life information for this product is unknown. The purpose of this study is to determine the rate of change in quality, critical parameters, and estimate the shelf life of sugar palm fruit jam with Arrhenius Model which is simulated at three storage temperature conditions (28⁰C, 38⁰C, and 48⁰C). Parameters observed during the storage process are water content, water activity (aw), pH, color (L), anthocyanin, and antioxidant activity (IC50). The results showed that the smallest activation energy value was used to determine product shelf life, it is color parameters (L) (first order reaction) with linear regression y = -4715.x + 9,787 on jar bottle packaging and y = -2021.x + 1,387 on packaging pouch. The age of storing sugar palm fruit jam with jar bottles is 93 days at 28⁰C and on the packaging pouch for 40 days at 28⁰C.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90946108","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: 3

Isolation and Characterization of Endofytic Bacteria Indigenus Potentially Producing IAA (Indole Acetic Acid) in West Sumatera and Their Effect on Nursery Palm Oil (Elaeis guineensis jacq) 西苏门答腊产吲哚乙酸内生菌的分离、鉴定及其对苗木棕榈油的影响

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.116

Rover Rover, R. Mayerni, Y. Yanti, A. Syarif

{"title":"Isolation and Characterization of Endofytic Bacteria Indigenus Potentially Producing IAA (Indole Acetic Acid) in West Sumatera and Their Effect on Nursery Palm Oil (Elaeis guineensis jacq)","authors":"Rover Rover, R. Mayerni, Y. Yanti, A. Syarif","doi":"10.32530/jaast.v3i2.116","DOIUrl":"https://doi.org/10.32530/jaast.v3i2.116","url":null,"abstract":"The IAA potentials of endophytic bacteria indigenous isolated from roots palm oil in west Sumatra. Isolate were characterized on the basis of visual observation, gram staining, hypersensitive reaction and IAA producing bacteria. Subsequently, effect on plant growth was tested by nursery palm oil used random design block. Out of 82 isolates, base on gram test 12 isolates were gram negative and 70 isolates grams positive and then results on the reaction hypersensitive test (HR test) there are 8 isolates that positive which means the isolate cannot be applied on the soil and plant. Eighty isolates selected were able to produce IAA that was between ppm 0,30ppm - 3,65ppm. Seven isolates showed clearly the growth promoting plant under field condition. Hence, these isolates are promising plant growth promoting isolates showing multiple attributes that can significantly influence the nursery palm oil. The result of present study, treatment E3.1.2 has higher plant most of the other treatment i.e. 21,93 cm and number of leaves i.e. 4,33 leaves.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90712109","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: 0

Lightweight Natural Fiber Composites 轻质天然纤维复合材料

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.108

M. Sanjay, S. Siengchin

引用次数: 17

The Effect of Biofertilizer and Inorganic Fertilizer Toward The Nutrient Uptake in Maize Plant (Zea mays l.) 生物肥料和无机肥料对玉米植株养分吸收的影响(Zea mays 1 .)

Journal of Applied Agricultural Science and Technology Pub Date : 2019-08-31 DOI: 10.32530/jaast.v3i2.121

Y. Sondang, K. Anty, R. Siregar

{"title":"The Effect of Biofertilizer and Inorganic Fertilizer Toward The Nutrient Uptake in Maize Plant (Zea mays l.)","authors":"Y. Sondang, K. Anty, R. Siregar","doi":"10.32530/jaast.v3i2.121","DOIUrl":"https://doi.org/10.32530/jaast.v3i2.121","url":null,"abstract":"The productivity of land and plants have decreased slowly, due to the use of inorganic fertilizers continuously. Efforts to improve productivity are reducing inorganic fertilizers and returning organic matter to the soil. The aim of this research are (1) to identify the chemical characteristics of biofertilizer with an indigenous microorganism as bioactivators and (2) to study the effect of biofertilizer on nutrient uptake of maize plant. The research was conducted at Laboratory, Greenhouse, and Experimental Field of Politeknik Pertanian Negeri Payakumbuh, West Sumatra Indonesia. The first step experiment in the Laboratory was produced indigenous microorganism from banana humps. The second step of making bio-fertilizers in Greenhouse used a Completely Randomized Design with four treatments of indigenous microorganism (IMO) level 0%, 10%, 20%, 30% in biofertilizer with five replications. The third step of biofertilizer application on the Experimental Field used Randomized Block Design Factorial arranged with two factors and three replications, the first factor IMO level in biofertilizer (M) 0%, 10%, 20%, 30% and the second factor was the dosage of inorganic fertilizer (P) 0%, 50%, 100% of the recommended dosage, 12 combinations of treatments were obtained. Results showed that microbe consortium (Enterobacter cloacae, Bacillus subtilis, Pseudomonas fluorescens, Aspergillus niger, and Trichoderma asperellum) in biofertilizers with different levels would affect the chemical characteristics of biofertilizer. Biofertilizers influences nutrient uptake of P and K maize plant, while inorganic fertilizer influences nutrient uptake of N and P maize plant.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90460639","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