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中国农学通报 ›› 2008, Vol. 24 ›› Issue (8): 381-386.

所属专题: 植物保护 水稻 农业生态

• 植物保护 农药 • 上一篇    下一篇

水稻对田间多种病虫害综合抗性的评价初探

计仁欢,蓝启和,刘婵媛,郭 莉,凌远生   

  • 收稿日期:2008-06-06 修回日期:2008-06-24 出版日期:2008-08-08 发布日期:2008-08-08

The Initial Research at Rice Synthetic Resistance to Pests and Diseases

Ji Renhuan, Lan Qihe, Liu Chanyuan, Guo Li, Ling Yuansheng   

  • Received:2008-06-06 Revised:2008-06-24 Online:2008-08-08 Published:2008-08-08

摘要: 通过对柳江县近年引进、推广的中优663等13个主要水稻品种(组合)进行田间小区试验,采用[0,1]多目标决策法进行综合评价,按对稻飞虱、稻纵卷叶螟、三化螟及稻纹枯病等多种病虫害的综合抗性的强弱排序为:优Ⅰ602>金优602>灵优6602>丰两优1号>金两优2号>优Ⅰ402>T优259>金优463>中优71>中优663>中优207>金优207>金优616。前五个品种(组合)均为中抗,其余品种(组合)均为中感。无高抗品种(组合),说明水稻对多种病虫害的综合抗性的选育工作任重而道远。通过亲缘关系分析发现,亲缘关系相近的水稻品种(组合)具有相近的综合抗性;分析五个中抗品种(组合)的抗性构成,为不同生态环境的品种布局提供依据。

Abstract: Via the experiments at 13 main rice varieties(combinations) introduced and extended in Liujiang County in recent years, such as Zhongyou663, etc, to have synthetic evaluation by using the method of [0,1]Multiple Goal Decision. According to the ability of resistance to rice plant hopper, rice case worm, paddy borer and sheath blight, these 13 rice varieties(combinations) are sorted like the following. YouⅠ602, JinYou602, LingYou6602, FengLiangYou1, JinLiangYou2, YouⅠ402, T You 259, Jinyou 463, Zhongyou71, Zhongyou 663, Zhongyou 207, Jinyou 207, Jinyou 616. Among these varieties(combinations), the first five ones are medium resistance, and the rests are all medium Susceptible,none of them is high resistant variety(combination),this means that there are still a lot of work to do with rice breeding for varieties(combinations) which have synthetic resistance to pests and diseases. Via the Analysis to the Genetic relationship, it is found that the close genetic rice varieties(combinations) have similar resistance. To analyse the resistance of the five varieties(combinations) which are medium resistant, and to have reasonable arrangement for different varieties in different ecological environment accordingly.

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