不同品种(系)棉花的黄萎病抗性及其与产量性状的关系

Research on Correlation between Verticillium wilt Resistance and Production Characters in Different Cotton Varieties

对若干棉花品种(系)及不同棉花杂交群体的产量性状与黄萎病病情指数的相关性分析表明,海陆杂交群体(M37株系)的抗性普遍比陆陆杂交群体(M44株系)高;在陆地棉品种中,相对病情指数与籽长呈极显著负相关,与单铃籽重呈显著正相关;在海岛棉品种中,相对病情指数与单铃纤维重呈显著负相关;海陆杂交群体(M37)中,相对病情指数与单铃纤维重呈显著负相关,与单株棉铃总重呈显著正相关;陆陆杂交群体(M44)中,相对病情指数与单株棉铃总重呈显著正相关。

The analysis was conducted on the correlation between the production characters of different cotton varieties and hybrid population and Verticillium wilt indexes. The results showed that the hybrid population from G. hirsutum and G. barbadense had the higher resistance than that of G. hirsutum and G. hirsutum. The disease index of G. hirsutum had extremely significantly negative correlation with the seed length and significantly positive correlation with seed weight per boll. The disease index of G. barbadense had significantly negative correlation with fiber weight per boll. The disease index of M37 had significantly negative correlation with fiber weight per boll and significantly positive correlation with whole weight of bolls per plant. The disease index of M44 had significantly positive correlation with whole weight of bolls per plant.