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白背飞虱对水稻抗虫品种N_(22)的适应性研究
引用本文:陈建明,俞晓平,吕仲贤,陶林勇,郑许松,徐红星,程家安. 白背飞虱对水稻抗虫品种N_(22)的适应性研究[J]. 应用生态学报, 2003, 0(11)
作者姓名:陈建明  俞晓平  吕仲贤  陶林勇  郑许松  徐红星  程家安
作者单位:浙江省农业科学院植物保护研究所 杭州310021(陈建明,俞晓平,吕仲贤,陶林勇,郑许松,徐红星),浙江大学华家池校区植物保护系 杭州310029(程家安)
基金项目:国家自然科学基金重点项目(3 963 0 2 0 0 ),中国水稻科学发展基金项目(970 0 0 6),浙江省青年人才专项基金资助项目(RC970 18)
摘    要:在室内连续用感虫品种TN1和抗虫品种N2 2 单管饲养白背飞虱 (Sogatellafurcifera)种群 ,研究它对抗虫水稻品种的适应性及其体内保护酶的变化 .结果表明 ,白背飞虱在感虫品种TN1和抗虫品种N2 2品种上饲养 1至 2代 ,其卵历期、若虫期和全世代历期均无明显差异 .从感虫品种TN1转移到抗虫品种N2 2 上饲养 1代 ,白背飞虱的若虫存活率、雌成虫寿命、体重、蜜露量、产卵量和内禀增长率等均低于在抗虫品种上连续饲养 2代 ,而后者又低于在感虫品种上饲养的指标 .白背飞虱在抗虫品种上连续饲养 2代后 ,体内保护酶中超氧化物岐化酶 (SOD)和过氧化氢酶 (CAT)活性逐渐接近于感虫品种上连续饲养的结果 ,说明白背飞虱从感虫品种转到抗虫品种在开始时并不适应 ,经过连续繁殖多代后白背飞虱逐渐适应 ,最后导致抗虫品种的抗性丧失

关 键 词:白背飞虱  抗虫品种N22  适应性  保护酶活性

Adaptation of Sogatella furcifera to insect-resistant rice variety N_(22)
CHEN Jianming ,YU Xiaoping ,LU Zhongxian ,TAO linyong ,ZHENG Xusong ,XU Hongxing ,CHENG Jia'an. Adaptation of Sogatella furcifera to insect-resistant rice variety N_(22)[J]. The journal of applied ecology, 2003, 0(11)
Authors:CHEN Jianming   YU Xiaoping   LU Zhongxian   TAO linyong   ZHENG Xusong   XU Hongxing   CHENG Jia'an
Affiliation:CHEN Jianming 1,YU Xiaoping 1,LU Zhongxian 1,TAO linyong 1,ZHENG Xusong 1,XU Hongxing 1,CHENG Jia'an 2
Abstract:The adaptation of whitebacked planthopper (WBPH) Sogatella furcifera to insect-resistant rice variety N 22 and the variation of its protective enzyme were studied by rearing it successively two generations on N 22 and insect-susceptible rice variety TN 1 in laboratory. The results showed that after reared on TN 1 or N 22 for one or two generations, its egg period, nymphal duration, and total generation period had no significant difference. The ecological parameters, e.g., nymphal survival rate, body weight, amount of honey dew, egg number, and innate increasing rate of WBPH transferred from TN 1 to N 22 and reared for one generation were lower than those of WBPH reared on N 22 successively for two generations, and the latter was lower than that reared on TN 1. The activities of superoxide dismutase (SOD) and catalase (CAT) in protective enzyme system of the 2nd generation WBPH on N 22 were similar to those of the pest on TN 1, indicating that S. furcifera could adapt to insect-resistant variety N 22 after rearing it successively for several generations.
Keywords:Sogatella furcifera   Insect-resistant rice varieties N 22    Ecological adaptation   Activities of protective enzymes
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