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分析了转Bt基因抗虫棉的抗虫性与产量性状、纤维品质性状以及抗病性状之间的相关性 ,结果表明 :转Bt基因抗虫棉的抗虫性与衣分存在极显著负相关 (R单 =-0 .870 、R偏 =-0 .972 ) ,与衣指存在显著负相关 (R单 =-0 .62 9 、R偏 =-0 .889 ) ,与籽指存在显著正向单相关 (R单 =0 .71 8 ) ,与株高、果枝数、结铃数、单铃重及籽棉产量之间相关不显著。抗虫性增强对纤维品质的不利相关效应有 :整齐度变差 (R偏 =-0 .988 )、伸长率下降 (R单 =-0 .680 )、气纱品质变差 (R偏 =-0 .992 ) ;对纤维品质的有利相关效应有 :反射率表现增强 (R偏 =0 .897 )。抗虫性与黄萎病病指之间存在极显著负相关 (R单 =-0 .868 、R偏 =-0 .90 0 ) ,但与枯萎病病指之间不存在内在相关性。
The relationship between insect resistance and yield traits, fiber quality traits and disease resistance traits of transgenic Bt cotton was analyzed. The results showed that there was a significant negative correlation between the insect resistance and the resistance of Bt transgenic cotton (R = -0.870, R = -0.972). There was a significant negative correlation with the index finger (R = -0.662, R = -0.888), which was significantly positive with the index Single correlation (R = 0.71 8) showed no significant correlation with plant height, fruit number, boll number, single boll weight and seed cotton yield. The negative correlation effect of enhanced pest resistance on fiber quality was that the regularity was worse (R = -0.988), the elongation was decreased (R = -0.680) -0 .992). The beneficial correlation effects on fiber quality were: enhanced reflectivity (R = 0.987). There was a significant negative correlation between insect resistance and pathogen of Verticillium wilt (R = -0.868, R = -0.090), but there was no inherent correlation with the pathogen of Fusarium wilt.