高温诱导黄瓜抗黑星病研究

园艺学报 ›› 2001, Vol. 28 ›› Issue (2): 177-179.

高温诱导黄瓜抗黑星病研究　

李宝聚;彭霞薇;王福建;彭　仁

(中国农业科学院蔬菜花卉研究所, 北京100081)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-04-25 发布日期:2001-04-25

High Temperature Induced Resistance to Cladosporium cucumerinum in Cucumbers

Li Baoju, Peng Xiawei, Wang Fujian, and Peng Ren

(Institute of Vegetables and Flowers, Chinese Academy of Agricultural sciences, Beijing 100081)

Received:1900-01-01 Revised:1900-01-01 Online:2001-04-25 Published:2001-04-25

摘要/Abstract

摘要： 利用高温(40～50 ℃) 预先对黄瓜幼苗处理1～2 h , 可以不同程度地诱导黄瓜苗对黑星病(Cladosporium cucumerinum Ell. and Arth. ) 的抗性, 40 ℃2 h、45 ℃1 h 高温诱导抗病性表达明显。高温热击后4 h 即开始表现出诱导抗病性, 24 h 诱导抗病性表现最明显。通过对18 个黄瓜品种的高温热击试验发现, 不同黄瓜品种经高温热击处理后表现出的诱导抗病效果不同, 有些品种在40 ℃2 h、45 ℃1 h 处理下诱导效果均较明显, 有些品种在40 ℃2 h 处理下诱导效果明显, 而有些品种则在45 ℃1 h 处理下诱导效果较好, 还有些品种高温处理后无效果。

关键词: 黄瓜, 高温处理, 诱导, 抗病性, 黑星病

Abstract: High temperature (40 - 50 ℃) for 1 - 2 hours induced resistance to the scab pathogen , Cladosporium cucumerinum in cucumber plants. The high temperatures of 40 ℃2 hours or 45 ℃1 hour was found to be the optimal
treatment for the induction of resistance. Plants inoculated with C. cucumerinum just at the time of 4 hours after heat shock of high temperature exhibited increased resistance to the fungus. A 24 hours interval from heat shock of high temperature to inoculation allowed for development of maximum resistance. Eighteen cultivars were tested by heat shock of
high temperature , and it was found that different cultivars expressed distinct induction resistance to C. cucumerinum. Some cultivars exhibited induced resistance in the treatments of 40 ℃2 hours and 45 ℃1 hour. Some cultivars exhibited induced resistance in only one of the two treatments , while others had no expression of induced resistance.

Key words: Cucumber, High temperature, Induction, Disease resistance, Cladosporium cucumerinum

中图分类号:

李宝聚;彭霞薇;王福建;彭　仁. 高温诱导黄瓜抗黑星病研究　[J]. 园艺学报, 2001, 28(2): 177-179.

Li Baoju;Peng Xiawei;Wang Fujian;and Peng Ren. High Temperature Induced Resistance to Cladosporium cucumerinum in Cucumbers[J]. ACTA HORTICULTURAE SINICA, 2001, 28(2): 177-179.

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