论文部分内容阅读
川棉 2 4 3对棉铃虫属 级 (抗 )抗性水平。叶片表面少毛属于川棉 2 4 3的形态抗虫特征 ,这降低川棉 2 4 3棉株上的落卵量 ,从而降低虫口密度 ;川棉 2 4 3抗棉铃虫的生化因子主要是棉株体内富含单宁和棉酚 ,这使棉铃虫幼虫对其取食趋势弱 ,取食量小 ,取食后营养不良 ,从而阻碍生长发育
Resistance to cotton bollworm (resistant) to cotton bollworm 2443. The hairy leaves on the leaf surface belonged to morphological characteristics of insect-resistant cotton, which reduced the amount of eggs shed on 224 cotton plants and reduced the population density. The biochemical factors of cotton bollworm resistant to cotton bollworm were mainly cotton The plant is rich in tannin and gossypol, which makes the cotton bollworm larvae feeding on its weak trend, small intake, malnutrition after eating, which hindered growth and development