| 棉铃虫对久效磷抗性和敏感性品系的生物适合度 |
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| 引用本文： | 任晓霞,韩召军,王荫长.棉铃虫对久效磷抗性和敏感性品系的生物适合度[J].南京农业大学学报,2001,24(2):41-44. |
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| 作者姓名： | 任晓霞 韩召军 王荫长 |
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| 作者单位： | 南京农业大学农业部 |
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| 基金项目： | 国家“973”基础研究项目 (J2 0 0 0 0 162 0 7)，江苏省重点攻关项目 (BE96370 ) |
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| 摘 要： | 通过构建种群生命表，观察比较了棉铃虫Helicoverpa armigera (Huebner)]对久效磷抗性品系和敏感性品系的一系列生长发育和繁殖特征。结果表明，两品系的适合度差异显著。相对于敏感品系，抗性品系生长发育上表现为幼虫期和蛹期延长，蛹重减轻，化蛹率和羽化率降低；繁殖上表现为交本配率、产卵量和卵孵化率降低。用种群数量趋势指数（I）来确定两个品系的相对适合度，抗性品系对敏感品系的相对适合度仅为0．14。认为这是生产上棉铃虫对有磷的抗性发展较慢的原因之一。
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| 关 键 词： | 棉铃虫 久效磷 抗药性 适合度 |
| 文章编号： | 1000-2030(2001)02-0041-04 |
| 修稿时间： | 2000年6月26日 |
Biological fitness of
monocrotophos resistant and susceptible strains of Helicoverpa armigera(H |
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| Ren Xiaoxia,HAN Zhaojun,WANG Yinchang.Biological fitness of
monocrotophos resistant and susceptible strains of Helicoverpa armigera(H[J].Journal of Nanjing Agricultural University,2001,24(2):41-44. |
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| Authors: | Ren Xiaoxia HAN Zhaojun WANG Yinchang |
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| Abstract: | The effects of monocrotophos resistance on fitness of cotton bollworm,Helicoverpa armigera(Hübner),were evaluated in terms of developmental and reproductive characteristics by constructing life table of resistant strain(LC-R)and susceptible strain(XJ-S).The results indicated that the LC-R strain possessed developmental disadvantages including prolonged larva and pupa duration,lighter pupa body weight,lower pupation and emergence rate,and reproductive disadvantages including lower copulation rate,effective fecundity and hatchability when compared with the XJ-S strain.Relative fitness was determined by population growth tendency index(I).The LC-R strain was calculated to have a fitness value of 0.14 relative to the XJ-S strain,which could be contributed to the slow development of organophosphate resistance in field population of this pest. |
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| Keywords: | Helicoverpa armigera monocrotophos resistence fitness |
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