抗虫棉的抗虫表现及其种植技术棉花是遭受病虫害最严重的一种作物，特别是近几年来棉铃虫猖镢，给棉花生产带来重大损失。中国农科院棉花研究所在７０年代末成立了抗虫棉品种选育课题，８０年代初被列入国家重点攻关项目，通过对有关材料的收集、鉴定和筛选，育成了中９９... Insect resistance of insect-resistant cotton and its planting techniques Cotton is the most affected by pests and diseases of a crop, especially in recent years, cotton bollworm rampant, to bring significant losses of cotton production. Cotton Institute of Chinese Academy of Agricultural Sciences in the late 70s set up a breeding project of insect-resistant cotton varieties, early 80s was included in the national key research projects, through the relevant materials collection, identification and screening, bred into 99 ...