But Jolokia Chilli 对储藏小麦中嗜线虫(鞘翅目: Curculionidae)驱避特性的实验室研究1

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Journal of Entomological Science Pub Date : 2024-01-03 DOI:10.18474/jes23-29
V. Rakesh, P. Patgiri, A. Borah
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引用次数: 0

摘要

本研究使用改进的杯状生物测定装置,在实验室试验中调查了 "Bhut Jolokia "辣椒(一种 Capsicum chinense Jacquin 栽培品种)对储藏小麦(Triticum aestivum L.)中稻象鼻虫(鞘翅目:蝼蛄)的驱避特性。用 Bhut Jolokia 辣椒干粉(浓度分别为谷物总重量的 3%和 5%(重量比))和 Bhut Jolokia 辣椒乙醇提取物(体积分别为 3 毫升和 5 毫升)进行了接触驱避和熏蒸驱避试验。在接触驱避试验中,随着浓度(5%)和时间间隔(24 小时)的增加,驱避的试验昆虫数量(平均值 ± SE)(7.90 ± 0.23)增加;而在熏蒸驱避试验中,随着体积(5 毫升)的增加,驱避的昆虫平均数量(8.2 ± 0.2)增加,而随着时间间隔(60 分钟)的增加,驱避的昆虫平均数量(3.80 ± 0.13)减少。气相色谱-质谱(GC-MS)分析表明,Bhut Jolokia 辣椒乙醇提取物中的活性化合物是辣椒素(21.50%)和二氢辣椒素(4.44%),以及非辣椒素类的正十六烷酸(29.34%)、正十五烷基乙酰胺(12.92%)等。我们的研究结果初步评估了 Bhut Jolokia 辣椒在实验室条件下对储藏小麦中的 S. oryzae 的驱避特性,为继续研究提供了动力。
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Laboratory Study of Repellent Property of Bhut Jolokia Chilli against Sitophilus oryzae (Coleoptera: Curculionidae) in Stored Wheat1
This study investigated the repellent property of ‘Bhut Jolokia’ chilli pepper, a Capsicum chinense Jacquin cultivar, against the rice weevil, Sitophilus oryzae L. (Coleoptera: Curculionidae), in stored wheat, Triticum aestivum L., in laboratory assays using a modified cup bioassay apparatus. Contact and fumigation repellency assays were conducted with the Bhut Jolokia chilli dry powder at concentrations of 3 and 5% (w/w) of the total weight of grain and the Bhut Jolokia chilli ethanol extract at volumes of 3 and 5 ml. In the contact repellency test, the number (mean ± SE) of test insects repelled (7.90 ± 0.23) increased with increasing concentration (5%) and time interval (24 h), whereas in the fumigation repellency test, the mean number of repelled insects increased (8.2 ± 0.2) with increasing volume (5 ml) and decreased (3.80 ± 0.13) with increasing time interval (60 min). Gas chromatography–mass spectrometry (GC-MS) analysis identified that the active compounds present in the Bhut Jolokia chilli ethanol extract were the capsaicinoids capsaicin (21.50%) and dihydrocapsaicin (4.44%) and the noncapsaicinoids n-hexadecanoic acid (29.34%), n-pentadecylacetamide (12.92%), and others. Our findings provide a preliminary assessment of the repellent property of Bhut Jolokia chilli against S. oryzae in stored wheat under laboratory conditions and serve as an impetus for continued research.
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来源期刊
CiteScore
1.20
自引率
11.10%
发文量
40
审稿时长
>12 weeks
期刊介绍: The Journal of Entomological Science (ISSN 0749-8004) is a peer-reviewed, scholarly journal that is published quarterly (January, April, July, and October) under the auspices of the Georgia Entomological Society in concert with Allen Press (Lawrence, Kansas). Manuscripts deemed acceptable for publication in the Journal report original research with insects and related arthropods or literature reviews offering foundations to innovative directions in entomological research
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