Asian Journal of Agriculture and Biology最新文献_第9页

Community structure of total bacteria and methane emission-related prokaryotes in the rice fields applied with urea and biofertilizer 施用尿素和生物肥料稻田中细菌总数和甲烷排放相关原核生物的群落结构

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-04-01 DOI: 10.35495/AJAB.2020.05.273

Y. Fatma

{"title":"Community structure of total bacteria and methane emission-related prokaryotes in the rice fields applied with urea and biofertilizer","authors":"Y. Fatma","doi":"10.35495/AJAB.2020.05.273","DOIUrl":"https://doi.org/10.35495/AJAB.2020.05.273","url":null,"abstract":"Rice fields are a source of methane emissions. Urea fertilization is considered to increase methane emission in rice field. Reduction in amount of urea applied with addition of biofertilizer, consisting of methanotrophic and N2O-reducing bacteria, is presumably to become an innovative fertilization technique to decrease methane emission from rice field. This current work aimed to investigate the community structure of total bacteria and methane emission-related prokaryotes in rice field soil treated with urea and biofertilizer at the vegetative and generative of rice stage. Two treatments were set up in the field experiment, i.e., 100% urea (250 kg/ha) without biofertilizer (B0) and 50% urea (125 kg/ha) with biofertilizer (B1). We used Illuminabased sequencing to investigate the soil microbial community in each treatment. Results showed that the soil bacterial community had minor changes in the two treatments throughout the rice growing period. Application of 50% urea with biofertilizer (B1) did not change the dominant bacterial phyla in rice field soil, i.e., Proteobacteria. However, there were differences in bacterial composition among the two treatments. Bacterial communities were partitioned into two clusters by the treatments (B0 and B1) rather than the rice growth phase. In addition, methanogens:methanotrophs ratio in the B1 treatment was lower than that of the B0 treatment.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46680682","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

DNA barcode: a potential tool for identifying ‘Hoa Loc’ mango cultivar in Vietnam DNA条形码:鉴定越南“和洛”芒果品种的潜在工具

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-04-01 DOI: 10.35495/AJAB.2020.05.272

D. Khang

引用次数: 1

Responses of Castanopsis tribuloides and Pinus kesiya seedlings to mycelial inoculation of Russula alboareolata and Amanita princeps 三角锥和克氏松幼苗对白蜡红菇和鹅膏菌菌丝体接种的反应

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-04-01 DOI: 10.35495/AJAB.2020.09.503

S. Youpensuk

{"title":"Responses of Castanopsis tribuloides and Pinus kesiya seedlings to mycelial inoculation of Russula alboareolata and Amanita princeps","authors":"S. Youpensuk","doi":"10.35495/AJAB.2020.09.503","DOIUrl":"https://doi.org/10.35495/AJAB.2020.09.503","url":null,"abstract":"Castanopsis tribuloides and Pinus kesiya are ectomycorrhizal (ECM) host plants. They are used for reforestation in degraded forestlands in northern Thailand. Objective of this research was to compare the effects of mycelial inoculation of Russula alboareolata and Amanita princeps, edible ECM mushrooms, on C. tribuloides and P. kesiya seedlings by evaluating ECM formation, growth response and nutrient accumulation. The study period was from 2018 to 2020. Two-month old seedlings of C. tribuloides and P. kesiya were inoculated with mycelium slurries of R. alboareolata and A. princeps. The effects of the ECM fungi on the host plants were evaluated at six months after inoculation. ECM roots of C. tribuloides associated with R. alboareolata and A. princeps were irregularly pinnate, whereas ECM roots of P. kesiya inoculated with the fungi were dichotomous branching patterns. Survivals of C. tribuloides seedlings in the uninoculated, R. alboareolata and A. princeps treatments were 66.7, 76.7 and 97.2% respectively. Survivals of P. kesiya seedlings in both the uninoculated and inoculated treatments were about 95%. Inoculation with the ECM fungi significantly increased the growth and nutrient accumulations of C. tribuloides and P. kesiya seedlings. The increase in dry weight was greater for inoculated plants of C. tribuloides than for those of P. kesiya. For C. tribuloides, the increase was significantly greater for plants inoculated with R. alboareolata than for those inoculated with A. princeps. For P. kesiya, there was no difference in the increase in dry weight between plants inoculated with each of the fungal species. Seedlings of C. tribuloides and P. kesiya associated with the edible ECM fungi may be beneficial for reforestation.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45045939","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

GC-MS analysis and antimicrobial activity of the aqueous extract from the bulbs of Allium chinense G. Don. cultivated in North Sumatra, Indonesia 葱鳞茎水提物的GC-MS分析及抗菌活性研究。种植于印度尼西亚北苏门答腊

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-04-01 DOI: 10.35495/AJAB.2019.12.562

Frans Grovy Naibaho

{"title":"GC-MS analysis and antimicrobial activity of the aqueous extract from the bulbs of Allium chinense G. Don. cultivated in North Sumatra, Indonesia","authors":"Frans Grovy Naibaho","doi":"10.35495/AJAB.2019.12.562","DOIUrl":"https://doi.org/10.35495/AJAB.2019.12.562","url":null,"abstract":"Chemical constituents of the aqueous extract of the Chinese shallot, Allium chinense G. Don. grown in North Sumatra, Indonesia was determined through gas chromatography-mass spectrometry (GC-MS). The aqueous extract was obtained from maceration in distilled water and concentrated using rotavapor (yield: 38%, w/v). The antimicrobial activity of the aqueous extract displayed broad-spectrum inhibition against Bacillus subtilis, Candida albicans, Staphylococcus aureus and Escherichia coli. The most potential bioactivity was its antifungal activity against Candida albicans with a minimum inhibitory concentration (MIC) of 62.5 μg/mL. The results also displayed a distinct composition in North Sumatran cultivar, Allium chinense, which previously reported to be dominated by organosulfur compounds in the Chinese shallot. Furan compounds and their derivatives dominated the composition of aqueous extract. The major components identified were 5-(hydroxymethyl)-2-furancarboxaldehyde (26.65%), 2,3-dihydro-3,5dihydroxy-6-methyl-4H-pyran-4-one (14.64%), lactic acid (12.70%), 3,5dihydroxy-2-methyl-5,6-dihydropyran (10.42%) and other furan derivatives (<2%) which may be responsible for its antimicrobial activity due to its furan cocktails in the extract. The major compound, 5-(hydroxymethyl)-2furancarboxaldehyde is then revealed as a potential antioxidant based on literature reviews.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46622708","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 effects of methyl eugenol, cue lure and plant essential oils in rubber foam dispenser for controlling Bactrocera dorsalis and Zeugodacus cucurbitae 甲基丁香酚、诱杀剂和植物精油在橡胶发泡器中对桔小实蝇和葫芦蚧的防治效果

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2020.10.530

M. Akter

{"title":"The effects of methyl eugenol, cue lure and plant essential oils in rubber foam dispenser for controlling Bactrocera dorsalis and Zeugodacus cucurbitae","authors":"M. Akter","doi":"10.35495/AJAB.2020.10.530","DOIUrl":"https://doi.org/10.35495/AJAB.2020.10.530","url":null,"abstract":"Bactrocera dorsalis and Zeugodacus cucurbitae are the most economically important pests of fruits and vegetables production. Male lures like, methyl eugenol (ME) and cue lure (CL) in conjunction with insecticides are commercially used to attract and kill these pests. We investigated, herein, the application of plant essential oils (basil, clove, citronella, and eucalyptus) with ME and CL for both toxicity and attraction. Through the use of rubber foam as a base, basil oil (BO) was found to be highly toxic to B. dorsalis and Z. cucurbitae, and was evaluated for potency with ME and CL as effective attraction mechanisms. Our results found 15.7-20.3 % of attraction for B. dorsalis using ME, separately or mixed with basil oil. The separate CL found 20.3 % while the ME+CL mixture provided 21.5 % attraction for Z. cucurbitae. In field tests, a greater number of B. dorsalis were trapped with ME alone (20.4 fly/trap/day, FTD), whereas the attraction of the ME and BO mixture was relatively low. For Z. cucurbitae, ME+CL (0.1-0.7 FTD) and CL (0.2-0.6 FTD) trapped more flies than mixtures combining BO, suggesting that combinations of BO with ME in rubber foam bases may be a viable alternative for the control B. dorsalis but not for Z. cucurbitae.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43882771","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: 5

Assessment of Drought Tolerance in various Cotton Genotypes under Simulated Osmotic settings 模拟渗透条件下不同基因型棉花抗旱性的评价

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2020.08.437

M. R. Gondal

{"title":"Assessment of Drought Tolerance in various Cotton Genotypes under Simulated Osmotic settings","authors":"M. R. Gondal","doi":"10.35495/AJAB.2020.08.437","DOIUrl":"https://doi.org/10.35495/AJAB.2020.08.437","url":null,"abstract":"Pakistan’s agriculture, especially the cotton area is facing serious threat of water shortage, which is negatively affecting the sizeable foreign reserves. Besides other irrigation management practices, selection of drought tolerant varieties can support to tackle the issue. The current study was aimed at the assessment of drought tolerance potential of various Bt cultivars of Gossypium hirsutum L. Under the current study, sixteen cotton cultivars were placed for germination in petri dishes under distinct osmotic potentials with seven different concentrations of PEG-6000 (i.e., 0, 5, 10, 15, 20, 25 and 27 percent, having osmotic potential of 0.0, -0.05, -0.148, -0.295, -0.491, 0.735 and -0.846 MPa respectively). The results revealed significant differences among various traits of all genotypes. It was observed that seed germination and root length increased up to concentration level of 25% PEG-6000 (at -0.735 MPa) whereas increment in shoot length stopped further. Root/shoot ratio increased until PEG concentration of 20% and then ceased. NIBGE-8 was the best performer under all simulated osmotic adjustments with maximum mean germination percentage of 62.86 %. The growth parameters of NIBGE-8 recorded on 12 and 18 days after sowing were noted as root length (6.87 and 9.9) cm, shoot length (5.9 and 6.37) cm, root/shoot ratio (1.03 and 1.23), root length-index (597 and 843) and shoot-vigor index (539 and 576) respectively. The results of study revealed that the genotypes NIBGE-8, NIBGE9, BH-201 and RH-668 were found osmotic stress tolerant while Mubarak, CEMB-88 and DEEBEL were found highly sensitive to drought conditions.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46164327","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: 5

Molecular diversity and phylogenetic reconstruction of Pepper mild mottle virus isolates from Pakistan 巴基斯坦辣椒轻度斑驳病毒分离株的分子多样性和系统发育重建

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2020.09.464

Adnan Ahmad

{"title":"Molecular diversity and phylogenetic reconstruction of Pepper mild mottle virus isolates from Pakistan","authors":"Adnan Ahmad","doi":"10.35495/AJAB.2020.09.464","DOIUrl":"https://doi.org/10.35495/AJAB.2020.09.464","url":null,"abstract":"Pepper mild mottle virus is a lethal Tobamovirus infecting capsicum around the globe. Molecular diversity of capsid protein gene (CP) of Pakistani Pepper mild mottle virus (PMMoV) isolates was investigated. From symptomatic pepper leaves collected from farmer’s fields, the CP gene of PMMoV RNA was amplified by specific primers designed in this study. The nucleotides sequences of Pakistani PMMoV isolates were 98.2% to 99.3% similar to each other and 97.2% to 99.3% with other isolates. Highest identities were observed with Indian (NC-3) and Chines (C27084) isolates. In phylogenetic reconstruction, Pakistani isolates grouped with Turkish and South Korean isolates. Few single nucleotide polymorphism were detected in Pakistani isolates and no insertions or deletions were observed. There was 0.0020 to 0.0063 evolutionary distance among Pakistani isolates and 0.0021 to 0.018 between Pakistani and world isolates (highest with Indian and German, and lowest with Spanish, Chines and Brazilian isolates). A frequent gene flow (Fst = 0.07103 i.e. <0.33) was observed between Pakistani and world isolates. In investigation of genetic differentiation, the figures of permutation-based statistical tests viz; Z (296.07432), Snn (0.083571) and Ks* (1.36036) were significant. In statistical analysis the values of Fu & Li’s D* and F* and Tajima’s D, were negative, exhibiting the low polymorphism frequency in studied populations.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41829947","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

Cytochrome b gene based population study of Tenualosa ilisha (Hamilton) in the Brahmaputra river system of India 基于细胞色素b基因的印度布拉马普特拉河水系土沙种群研究

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2019.01.033

R. Choudhury

引用次数: 2

Pollinator Community of Sunflower (Helianthus annus L.) and its Role in Crop Reproductive Success 向日葵(Helianthus annus L.)传粉者群落及其在作物繁殖成功中的作用

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2020.07.398

Wali Muhammad

{"title":"Pollinator Community of Sunflower (Helianthus annus L.) and its Role in Crop Reproductive Success","authors":"Wali Muhammad","doi":"10.35495/AJAB.2020.07.398","DOIUrl":"https://doi.org/10.35495/AJAB.2020.07.398","url":null,"abstract":"A study was carried out to identify the pollinator community and its role in pollination of sunflower at the research farm of Bahauddin Zakariya University, Multan, Pakistan. The community of pollinators was composed of 14 insect species including eight bee species (Hymenoptera), four fly species (Diptera) and two butterfly species (Lepidoptera). Bees were the most abundant floral visitors. Apis dorsata Fabricius, Xylocopa sp and Megachile sp. were the most abundant among the bees with the highest visitation frequencies i.e. 1.33, 0.07 and 0.06 individuals per head per minute, respectively. The abundant flies included Eristalinus aeneus Scopoli and E. arvorum Linnaeus. The peak visitation activity of pollinators was recorded between 08:00 to 10:00 hrs. Although there was no significant difference in number of seeds per head produced in insect pollinated (open) as compared with, without insect pollinated (caged) heads. However, insect pollination significantly increased the number of healthy seeds, 100 seed weight and germination percentage. As A. dorsata Fabricius was the major pollinator of sunflower, future studies should focus on its conservation for better crop production.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42540438","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

Adaptability and yield potential of new quinoa lines under agro-ecological conditions of Faisalabad-Pakistan 巴基斯坦费萨拉巴德农业生态条件下藜麦新品系的适应性和产量潜力

IF 2.2

Asian Journal of Agriculture and Biology Pub Date : 2021-02-08 DOI: 10.35495/AJAB.2020.05.301

M. Akram

{"title":"Adaptability and yield potential of new quinoa lines under agro-ecological conditions of Faisalabad-Pakistan","authors":"M. Akram","doi":"10.35495/AJAB.2020.05.301","DOIUrl":"https://doi.org/10.35495/AJAB.2020.05.301","url":null,"abstract":"Cultivation of quinoa, a climate-resilient and superfood crop, can be a viable option for food security than conventional food crops. A field experiment was conducted during growing season of 2018-2019 to evaluate 13 elite lines of quinoa. The data regarding stand establishment, phenology of developmental stages, root establishment, leaf biochemical, morphological attributes and seed viability were recorded and analysed. Seed yield was linked with phenological, physiological and morphological traits. Ten lines (4, 6, 9, 11, 15, 22, 24, 30, 45 and 126) seem to be high yielders than check that are originated from New Mexico and Peru. New line Q11 appears to be a high yielder among all the newly introduced lines and standard variety also. Q126 showed the maximum harvesting index. Standard variety UAFQ-7 seems to be higher in root length. Among lines, the duration of crops is also different. Q24 appears to be a short duration crop. Q15 and Q45 appear to be higher in anthocyanin and phenolic contents, respectively. Finding new germplasm having higher yield potential than the check variety will strengthen the popularity of new crops under the agro-climatic conditions of Faisalabad-Pakistan.","PeriodicalId":8506,"journal":{"name":"Asian Journal of Agriculture and Biology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48157955","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: 13