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“陕401”是我所1964年用陕棉3号作母本,射洪52,徐州1818,60—5为多父本杂交,再以川57—681为父本连续杂交后选育而成。1972年开始示范,逐步推广。目前在全国病区已推广约二百方亩左右。1974年以来陕西、江苏、四川、河南、云南、山东、山西、北京等十三个省(市)重病区普遍采用以种植“陕401”等抗病品种为中心的综合防治措施,建立样板田,树立了重病区防病夺高产的典型。几年来,通过试验、示范和大面积种植,“陕401”表现出如下几个突出的特征。一、抗病性强1.抗枯萎病性
“Shan-401” was selected by our institute as the female parent of Shaan Mian 3 in 1964, Shehong 52, Xuzhou 1818 and 60-5 as the paternal parents, and then the cross of Sichuan 57-681 as the male parent . Demonstration in 1972, gradually promoted. Currently in the ward has been promoting about 200 acres or so. Since 1974, Shaanxi, Jiangsu, Sichuan, Henan, Yunnan, Shandong, Shanxi, Beijing and other thirteen provinces (municipalities) seriously ward to grow “401” and other resistant varieties as the center of the comprehensive prevention and control measures to establish a model field , Establish a serious ward disease prevention and treatment of high yield typical. Over the past few years, “Shan 401” has shown several prominent features through experiments, demonstrations and large-scale planting. First, the disease resistance 1. Wilt resistance