棉花抗旱耐盐性品种筛选

试验对76个品种进行了抗盐和抗旱筛选.抗盐筛选采用种子发芽抗盐鉴定和幼苗生长抗盐鉴定的方法,结果表明:耐盐品种为9812-85、9811-36、石干1号、新植3号和冀农省早441五个品种,对盐敏感品种为新植1号、KD51028和鲁棉22.抗旱筛选采用幼苗生长抗旱鉴定的方法,结果表明:抗旱品种为1193B和山东8短季;对旱敏感品种:9811-36、9810-3、21025-2、中棉所45和21021-8.研究为棉花抗旱耐盐品种改良、控制抗旱性和耐盐性的相关性状进行QTL定位及分子标记辅助育种打下基础.

Screening of Drought and Salt Resistant Variety of Cotton

In order to screen drought and salt resistant varieties of cotton, 76 cotton stable varieties were studied. The screening of salt resistance was used of seed germinating test and the result indicated that 9812- 85, 9811 - 36, Shigan 1, Xinzhi3 and Jinong441 are salt resistant variety, Xinzhi 1, KD51028 and Lumian22 are sensitive to salt. By using seeding growth test to select drought resistant cotton variety, the result of drought resistance showed that 1193B and Shandong8 are drought resistant variety, 9811 - 36,9810- 3,21025 - 2, Zhongmainsuo45 and 21021 - 8 are sensitive to drought. The research is conducted for locating and analysing genetic basis of drought resistance and salt tolerance of cotton cultivars.