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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (16): 151-159.doi: 10.11924/j.issn.1000-6850.2014-2135

所属专题： 资源与环境； 园艺

• 植物保护 农药 • 上一篇    下一篇

小白菜抗黄曲条跳甲种质资源的抗虫性鉴定

周利琳,胡侦华,望 勇,司升云,司 越   

  1. (武汉市蔬菜科学研究所,武汉 430345）
  • 收稿日期:2014-08-05 修回日期:2015-05-25 接受日期:2015-04-15 出版日期:2015-07-27 发布日期:2015-07-27
  • 通讯作者: 周利琳
  • 基金资助:
    武汉市高新技术产业科技创新团队计划项目“小白菜对黄曲条跳甲抗虫资源创新与抗虫机理研究”(2013070204020052)。

Insect Resistance Identification of Brassica campestris L. ssp. chinensis Germplasm Resources to Phyllotreta striolata (Fabricius)

Zhou Lilin, Hu Zhenhua, Wang Yong, Si Shengyun, Si Yue   

  1. (Wuhan Institute of Vegetables Science, Wuhan 430345)
  • Received:2014-08-05 Revised:2015-05-25 Accepted:2015-04-15 Online:2015-07-27 Published:2015-07-27

摘要： 为了研究小白菜对黄曲条跳甲的抗虫性鉴定方法，采用田间自然鉴定法，参照小菜蛾危害分级标准，比较了黄曲条跳甲成虫为害48个品种小白菜的叶面积损失百分率。结果表明，现行的小菜蛾危害分级标准不适用于黄曲条跳甲成虫；进一步分析发现48个品种小白菜叶片的叶面积损失百分率与其叶片孔洞数显著正相关(r=0.354)，表明计数叶片受害孔洞数可以用来鉴定小白菜对黄曲条跳甲成虫的抗虫性。为了创新小白菜对黄曲条跳甲的抗虫性种质资源，采用“叶片受害孔洞计数法”筛选了100个品种小白菜对黄曲条跳甲成虫的抗虫性，得到了5个相对抗虫品种（‘新矮青-9’、‘新夏春3号’、‘918’、‘泰国种子-2’、‘夏冠’）和5个相对感虫品种（‘楚青325-6’、‘青优’、‘鸡毛菜’、‘12#耐抽苔青梗×668-1’、‘富士’），5个相对抗虫品种孔洞数间均无差异，但均极显著低于5个相对感虫品种，这些材料为小白菜抗虫育种奠定了基础。

关键词: 丰产, 丰产

Abstract: In order to study insect resistance identification method of Chinese cabbage to Phyllotreta striolata (Fabricius), based on hazard classification standard of diamondback moth, Plutella xylostella (L.), the defoliation percentage of 48 Chinese cabbage [Brassica campestris L. ssp. chinensis (L.) Makino] varieties infected by the adults of P. striolata were estimated by natural evaluation method in the field. The results showed that the current hazard classification standard of diamondback moth was not applicable to adults of P. striolata. Further analysis demonstrated that the defoliation percentage of 48 Chinese cabbage varieties had significant positive correlation with the hole number (r = 0.354). These results suggested that quantity statistics of injured holes in cabbage leaves could be used to identify insect resistance of P. striolata. Moreover, in order to cultivate Chinese cabbage and its germplasm resources with insect resistance, 100 varieties of Chinese cabbage were used for identification of insect resistance to P. striolata. Five kinds of cabbage (‘Xin’aiqing-9’, ‘Xinxiachun No.3’, ‘918’, ‘Thailand seed-2’, ‘Xiaguan’) showed obvious resistance and another five kinds of cabbage (‘Chuqing 325-6’, ‘Qingyou’, ‘Jimaocai’, ‘12#bolting resistance Qinggeng × 668-1’, ‘Fuji’) were relatively susceptible. No significant difference was found among five resistant cabbage varieties on the numbers of leave holes, which were significantly lower than that of the five relatively susceptible varieties. These materials would be useful in future anti-insect breeding of Chinese cabbage.