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中国农学通报 ›› 2021, Vol. 37 ›› Issue (32): 20-24.doi: 10.11924/j.issn.1000-6850.casb2020-0249

所属专题: 马铃薯

• 农学·农业基础科学 • 上一篇    下一篇

甘薯小象甲对不同甘薯品种的趋性反应试验

雷剑1(), 张萌1,2, 张静珍1,2, 王连军1, 柴沙沙1, 靳晓杰1, 程贤亮1, 杨园园3, 杨新笋1()   

  1. 1湖北省农业科学院粮食作物研究所/湖北省甘薯工程技术研究中心/粮食作物种质创新与遗传改良湖北省重点实验室,武汉 430064
    2长江大学农学院,湖北荆州 434025
    3湖北省农业科学院,武汉 430064
  • 收稿日期:2020-07-10 修回日期:2020-09-15 出版日期:2021-11-15 发布日期:2022-01-07
  • 通讯作者: 杨新笋
  • 作者简介:雷剑,男,1980年出生,湖北竹山人,副研究员,硕士,主要从事甘薯品种选育与病虫害方面的研究。通信地址:430060 湖北武汉洪山区南湖大道3号 湖北省农科院粮作所,E-mail: lj9904005@163.com
  • 基金资助:
    国家重点研发计划项目“双子叶杂粮抗性种质创制”(2019YFD1001303);湖北省农业科学院青年领军人才计划项目“microRNAs在甘薯对小象甲抗性中的作用研究”(L2018005);财政部和农业农村部“国家现代农业产业技术体系”

Chemotaxis Test of Sweetpotato Weevil (Cylas formicarius) to Sweet Potato Varieties

Lei Jian1(), Zhang Meng1,2, Zhang Jingzhen1,2, Wang Lianjun1, Chai Shasha1, Jin Xiaojie1, Cheng Xianliang1, Yang Yuanyuan3, Yang Xinsun1()   

  1. 1Institute of Food Crops, Hubei Academy of Agricultural Sciences /Hubei Engineering and Technology Research Centre of Sweet Potato /Hubei Key Laboratory of Food Germplasm and Genetic Improvement, Wuhan 430064
    2College of Agriculture, Yangtze University, Jingzhou Hubei 434025
    3Hubei Academy of Agricultural Sciences, Wuhan 430064
  • Received:2020-07-10 Revised:2020-09-15 Online:2021-11-15 Published:2022-01-07
  • Contact: Yang Xinsun

摘要:

成虫取食主要取决于气味诱导和对物体性状的偏好,为了解小象甲对不同品种甘薯气味的选择性与品种抗虫的相关性;选取14个甘薯品种,利用Y型嗅觉仪测定小象甲对14个甘薯品种进行气味选择试验,并计算各品种的抗性。结果显示,小象甲对14个不同品种甘薯的反应率、诱集率以及选择系数都具有差异显著性,小象甲对14个甘薯品种的反应率在0.3~1之间,不同品种对甘薯小象甲的诱集率在0.2~0.9556之间,小象甲对不同甘薯品种之间的选择系数在-0.03~0.91之间,其中‘鄂薯15’选择系数最小为-0.03,表现为最抗小象甲;‘鄂薯6号’和‘商薯19’的选择系数最大且都为0.91,表现为最感小象甲。本研究为甘薯小象甲的防治奠定了基础,对今后完善抗甘薯小象甲品种的鉴定工作有很大帮助。

关键词: 甘薯小象甲, 趋性反应, Y型嗅觉仪, 差异性, 相关性

Abstract:

Odor induction and feature preference are major factors affecting sweetpotato weevil’s feeding. In order to understand the selectivity of sweetpotato weevil to odor of different sweet potato varieties and correlation between sweet potato’s odor and weevil resistance, an odor selection test of 14 sweet potato varieties was carried out by using Y-type olfactometer, and each variety’s resistance was calculated. The results showed that the response rate, trapping rate, and selection coefficient of sweetpotato weevil to 14 sweet potato varieties were significantly different. The response rate, trapping rate, and selection coefficient was 0.3-1, 02-0.9556, and -0.03-0.91, respectively. Among the 14 varieties, Eshu 15 had the minimum selection coefficient of -0.03, showing the highest weevil resistance, while both Eshu 6 and Shangshu 19 had the maximum selection coefficient of 0.91, showing the highest susceptive to weevil. This study establishes a basis for sweetpotato weevil control and will help the identification of weevil-resistant sweet potato variety.

Key words: sweetpotato weevil (Cylas formicarius), chemotaxis response, type Y olfactometer, difference, correlation

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