杂交稻新组合抗优80对褐稻虱抗性的初步研究  

Resistance of a New Hybrid Rice Variety "Kangyou 80" to Brown Planthopper.

作　　者：肖英方[1] 邱光[1] 顾正远[1] 陈海新 问才干 丁伦友[3] 

机构地区：[1]江苏省农科院植保所,南京210014 [2]江苏省高邮市植保站 [3]南京农业大学农学系

出　　处：《植物保护》1996年第1期6-8,共3页Plant Protection

摘　　要：通过对褐稻虱苗期抗性测定,杂交稻新组合抗优80对褐稻虱表现抗性,抗性级别为1.0级,对褐稻虱存活率、取食量、种群建立等有很强的抑制作用;田间系统调查,抗优80上的虫量仅为感性品种汕优63上的1/7～1/20。因此,在褐稻虱中等或偏重发生年,抗优80上的虫量达不到防治指标,不需进行防治。The resistance of 'Kangyou 80' to brown planthopper (BPH), (Lilaparvata lugens') was studied. Experiment showed that 'Kangyou 80' had obivously effect on feeding,surival.population built-up of BPH and the grade of resistance was 1. 0 in seedling stage. Population density on 'Kangyou 80' were 1/7-1/20 as on susceptible variety in field. Thus, it is unnessary to control BPH on the new variety of 'Kangyou 80' in the years of medium population densities.

关 键 词：水稻 杂交水稻 抗优80 褐稻虱 害虫 抗性 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]