水稻品种(组合)对褐飞虱抗性的田间表现

在褐飞虱大发生的2007年单季稻期间,以TN1作为感虫对照,在浙江省金华市评价了48份水稻品种(组合)的田间成株期抗性表现。结果表明,16个品种(组合)表现为田间成株期感虫,其他32个品种(组合)具有中抗以上水平,其中丙04-123、Ⅱ优845、宜香845、中组14、嘉兴优04-1和IR36等品种(组合)达高抗水平。在持久抗性方面,除高抗品种外,秀水09、新嘉优99、嘉优22-5、秀优0969、宁04-81、丙04-103、丙04-08、丙04-123、R4101、丙04-132、丙05-129、丙05-227、浙粳23和浙粳22等品种(组合)具持抗性。试验表明,成株期田间褐飞虱抗性评价对生产实践具有更重要的意义。

Resistance Performance of Rice Varieties (Combinations) to Brown Planthopper,Nilaparvata lugens, in Paddy Field

Resistance performance of 48 rice varieties (combinations) to brown planthopper (BPH), Nilaparvata lugens Stl, was evaluated in single season rice field during BPH population outbreak of year 2007. Results showed that 16 varieties(combinations) were susceptible while the other 32 varieties (combinations) were highly or moderately resistant to BPH. Bing 04 123, Ⅱ you 845, Yixiang 845, Zhongzu 14， Jiaxingyou 04 1 and IR36 showed high resistance. Besides the 5 varieties with high resistance, other varieties including Xiushui 09, Xinjiayou 99, Jiayou 22 5, Xiuyou 0969, Ning 04 81, Bing 04 103, Bing 04 08, Bing 04 123, R4101, Bing 04 132, Bing 05 129, Bing 05 227, Zhejing 23 and Zhejing 22 also had long durable resistance characteristics. The results imply that rating resistance of rice varieties to BPH in paddy field at the adult stage of rice was much more importance in screening and evaluating resistance resources for optimizing the layout and application of new bred resistant varieties as one of key strategies of integrated pest management.