１９９４～１９９７年，利用３７个陆地棉品种（系）研究了黄萎病对皮棉产量的影响，分析了病情指数的主要影响因素。结果表明，病情指数越高，产量损失越大；病情指数的大小主要取决于发病时间和发病速度两个因素，这两个因素在不同年份表现相对稳定，品种间存在显著差异。由于发病时间和发病速度的不同，导致了不同生长阶段品种间感病程度的相应变化。在抗病育种中，选择发病时间晚和发病速度慢的品种（系）是较理想的抗病类型。 In 1994-1997, the effects of Verticillium wilt on the lint yield were studied using 37 upland cotton varieties (lines), and the main influencing factors of the disease index were analyzed. The results showed that the higher the disease index, the greater the loss of yield. The index of disease index mainly depends on the onset time and the rate of onset. These two factors showed relatively stable performance in different years with significant differences among varieties. Due to the different time of onset and the rate of onset, the corresponding changes in the degree of susceptibility to different growth stages were caused. In disease-resistant breeding, the selection of late onset and slow onset of varieties (lines) is the ideal type of disease resistance.