长江流域棉区棉花新品种抗病虫性研究

Studies on Resistance of Cotton New Varieties to Fusarium,Verticillium wilts and Pectinophora gossypiella in the Changjiang River Valley Cotton-growing Area

2003年,对长江流域棉区15份新材料进行了抗红铃虫鉴定,结果有8份材料高抗红铃虫,占鉴定材料的53.33%;4份材料抗红铃虫,占26.67%;3份材料中抗红铃虫,占20.00%。对55份新材料进行抗枯萎病鉴定,结果有27份材料抗枯萎病,占鉴定材料的49.09%;26份材料耐枯萎病,占47.27%;2份感枯萎病,占3.64%。对59份材料进行抗黄萎病鉴定,结果有8份材料抗黄萎病,占鉴定材料的13.56%;43份材料耐黄萎病,占72.88%;8份材料感黄萎病,占13.56%。

In 2003, 15 new materials from the Changjiang River valley cotton-growing area were identified for resistance to pink bollworm. Results showed that 8 (53.33% ) materials were highly resistant to pectinopho-ra gossypiella , 4 (26.67%) were resistant, 3 (20.00%) were moderately resistant. Fifty-five new materials were tested for their resistance to Fusarium wilt and 59 were for identification of resistance to Verticillium wilt. The results showed that 27 materials expressed disease resistance (account for 49.09%), 26 were tolerant (47.27%) and 2 susceptible (3.64%) to Fusarium wilt. Eight materials (13.56%) were resistant to Verticillium wilt, 43 (72.88%) were tolerant, 8 (13.56%) were susceptible.