abstract : quantitative genetic variation in larval tolerance to cyhalothrin and fenvalerate was examined in a pyrethroid-resistant population of cotton bollworm, helicoverpa armigera ( h & uuml; bner ) was examined with half-sibling analysis and significant additive genetic variation in larval tolerance was detected, demonstrating that tolerance phenotypes in this population are highly heritable ( h2n narrow sense heritability = 0.4625 0.1578 ) to fenvalerate than that to cyhalothrin ( h2n = 0.2476 0.0248 ) 文摘:通過單對交配設(shè)計(jì)不同的交配家系,采用半同胞法分析了棉鈴蟲對三氟氯氰菊酯和氰戊菊酯的抗性狹義遺傳力,并對2種菊酯類藥劑的抗性發(fā)展速度進(jìn)行評價(jià)。