摘要
分析评价了近年来河北省区域试验棉花品种的抗病性。结果表明 :84 9%的参试品种抗枯萎病 ,65 41 %的品种达抗枯耐黄水平 ,抗黄萎病的品种很少 ,双抗品种更少 ;年度间参试品种抗病性表现为抗枯萎病性达到较高水平后趋于稳定 ,不同类型品种有明显差异 ,杂交种优于常规品种 ,非抗虫棉好于转基因抗虫棉 ,低酚棉抗病性最差。
The diseases resistance of 159 new cotton varieties in Hebei Province were analyzed. The results indicated (1) 84.91% of the varieties showed resistance to Fusarium wilt,65.41% of the varieties showed resist ance to Fusarium wilt and tolerance to Verticillium wilt,few varieties showed resistance to Verticillium wilt,and fewer varieties showed resistance to both Fusarium wilt and Verticillium wilt. (2) By 8 years improvement,the resistance of the cultivars to Fusarium wilt got to higher level,the resistance to Verticillium wilt increased slowly. (3) The diseases resistance of different types varieties had obvious difference,that is the hybrid breeds,non-transgenic varieties,and gland varieties were prior to normal varieties,transgenic varieties and the glandless varieties respectively.
