Abstract: Tolerance and compensation of different rice varieties to infesting of Nilaparvata lugens were conducted. Tolerance experimental results indicated that super rice combination Pei′ai 64S/32E had a stronger tolerance to brown planthopper (BPH) feeding, and Jiayu 948 (early indica rice) had both tolerance and antibiosis. Xiushui 11 (japonica rice) and Shan- you 63 (indica hybrid rice) were similar to susceptible check variety TN1 (CK), were not capable of tolerance to BPH feeding, ASD7 and IR64 belonged to antibiosis varieties. Results of rice growth compensation showed that whether by primary tiller removal or with BPH injury, change percentages of plant height, number of tillers, leaf area of the second leaf, dry weight of plants above ground and root activity of Xiu-shui 11 and Shanyou 63 were similar to those of TN1, indicated that Xiushui 11 and Shanyou 63 had no obvious growth compensation. For Pei′ai 64S/32E, plant height, leaf area of the second leaf and chlorophyll content changed insignificantly and number of tillers increased greatly, indicated that this variety had a stronger compensative ability. For Jiayu 948, plant height reduced and number of tillers and leaf area of the second leaf increased obviously, indicated that the variety also had stronger compensation.

Key words: rice, variety, Nilaparvata lugens, tolerance, compensation, evaluation

摘要： 利用采自云南高原粳稻区病叶分离的17份水稻白叶枯病菌株，在30份水稻品种上接种进行致病型初步鉴定。研究表明可以将17个菌株分为7个致病型（Ⅰ~Ⅶ），其中Ⅴ型菌为云南高原粳稻区的优势菌群。初步构建了一套包含7个品种（黄玉、毫糯扬、TN1、珍珠矮、IR26、南粳33、金南风）的高原粳稻白叶枯病菌的鉴别品种，明确了7个致病型在这套鉴别品种上的反应型。早生爱国3号(Xa-3)、IR1545-339(xa-5)、IRBB21（Xa-21）、扎昌龙（Xa-22t，Xa-24t）对所接种菌均表现抗病，在云南高原粳稻育种中具有较好的利用前景。

关键词: 水稻, 品种, 褐飞虱, 耐性, 补偿作用, 评价