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生态学杂志 ›› 2010, Vol. 29 ›› Issue (07): 1382-1386.

• 研究报告 • 上一篇    下一篇

不同菊花品种抗蚜虫性鉴定

何俊平,陈发棣,陈素梅**,房伟民   

  1. 南京农业大学园艺学院,南京 210095
  • 出版日期:2010-07-08 发布日期:2010-07-08

Aphid-resistance of chrysanthemum cultivars.

HE Jun-ping, CHEN Fa-di, CHEN Su-mei, FANG Wei-min   

  1. College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
  • Online:2010-07-08 Published:2010-07-08

摘要: 为发掘抗蚜虫种质,对32份切花菊进行了人工蚜虫接种,统计了蚜虫接种后不同品种上虫口数量和蚜量比值。结果表明:不同品种对蚜虫的抗性表现出明显差异,蚜虫接种21 d时各品种上虫口数量差异甚大,为0~267头不等;根据蚜量比值可将菊花抗蚜虫性分为5级,分别为:高抗,0~0,25;中抗,0,26~0,50;抗,0,51~0,75;低抗,0,76~1.25;不抗,>1.25。32份切花菊中,有14个菊花品种为不抗品种;4个品种为低抗品种;3个品种为抗虫品种;1个品种为中抗品种;10个品种为高抗品种。

关键词: 黄山花楸, 遗传多样性, RAPD

Abstract: In order to discover aphid-resistant germplasm, 32 cut chrysanthemum (Chrysanthemum grandiflorum) cultivars were artificially inoculated with aphids, and the aphid number and its ratio on the cultivars were investigated. Different chrysanthemum cultivars had different levels of aphid-resistance. After 21 days inoculation, the aphid number varied with cultivars, ranging from 0 to 267. The aphid-resistance of chrysanthemum could be divided into five grades in terms of aphid number ratio, i.e., high resistance (aphid number ratio 0-0.25), moderate resistance (0.26-0.50), resistance (0.51-0.75), low resistance (0.76-1.25), and non-resistance (>1,25). Among 32 test cultivars, 14 cultivars were of non-resistance, 4 cultivars were of low resistance, 3 cultivars were of resistance, 1 cultivar was of moderate resistance, and 10 cultivars were of high resistance.

Key words: Sorbus amabilis, Genetic diversity, RAPD