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将几丁质酶(chitinase,Chi )基因导入国产抗虫棉GK19中,目前已选出既抗病又抗虫的棉花新株系[1],1999~2002年在北京对其抗枯萎病和黄萎病以及抗棉铃虫性进行了研究。1 材料和方法1.1 材料转几丁质酶基因抗虫棉(Gossypiumhirsutum )B99619,受体抗虫棉GK19,感病对照鄂荆1?
The chitinase (Chi) gene was introduced into the domestic insect-resistant cotton GK19. At present, new cotton lines that are both disease-resistant and insect-resistant have been selected [1]. From 1999 to 2002, their resistance to Fusarium wilt and yellow Wilt disease and resistance to bollworm were studied. 1 Materials and methods 1.1 Materials to chitinase gene Bt cotton (Gossypium hirsutum) B99619, Bt cotton GK19, susceptible control E Jing 1?