摘要： 以转基因抗虫棉R93-4等五个品系为材料，对其生育特性及有关经济性状进行了研究。结果表明，R93-4，R93-6，RH-4，R93-5，R93-3等品系与对照相比生育进程提前，早熟，结铃集中，着铃性好，但铃重、衣分较低。转Bt基因抗虫棉多表现苗期长势弱，铃小等缺点。

关键词: 生育特性, 经济性状, 转基因棉

Abstract: Growth and economic characters and other morphological traits were studied with 5 Bt transgenic cotton varieties.The results showed that the growing processes of varieties R93-4,R93-6,RH-4 advanced and they ripped earlier compared with the control.Their fruit habit was much closer,owing to their insect resistance,and the bolls per plant were more than that of the control.But for their boll weight and lint percent both were lower,so in the practices of production corresponding measures should be adopted to raise the seed cotton yield of the transgenic cotton varieties.

Key words: Growth character, Economic character, Bt transgenic cotton

中图分类号: 

• S562.034