标杂Ａ－１杂交棉是用石家庄市农科院选育的棉花标记自交系ｙ２－２作父本与抗虫棉杂交配制成的具有丰产，早熟、优质、抗病虫诸性状于一体的适宜间套作种植的鸡脚叶棉花杂交种。几年来，经过在河北、河南、山东等省较大面积的试验示范，均取得良好效果，１９９８年１０月，河 Standard hybrid A-1 hybrid cotton is Shijiazhuang Academy of Agricultural Sciences breeding cotton inbred line y2-2 for the male parent and insect-resistant cotton hybrid prepared with a high yield, early maturity, high quality, resistance to pests and diseases in one Suitable intercropping for the cultivation of chicken foot leaf cotton hybrids. In recent years, after a large area of ​​experimental demonstration in Hebei, Henan, Shandong and other provinces have achieved good results, in October 1998, the river