棉花高抗枯萎病抗源种质57-681的抗性特异性研究及应用  

Studies on the specific resistance to Fusarium wilt of cotton resource 57-681 and its utilization

作　　者：李琼芳[1] 谭永久[1] 叶鹏盛[1] 曾华兰[1] 何炼[1] 韦树谷[1] 

机构地区：[1]四川省农业科学院经济作物研究所,四川简阳641400

出　　处：《西南农业学报》2007年第5期926-929,共4页Southwest China Journal of Agricultural Sciences

基　　金：国家育种攻关;四川省育种攻关;四川省生物防治技术

摘　　要：采取人工接菌水泥槽病床的方法,研究抗源57-681的抗性特异性。结果表明,抗源57-681经过多年诱导抗性筛选,抗性一直保持稳定、持久。且抑菌谱宽,适应区域广,遗传效应高,具有广泛转育利用价值。全国利用57-681作抗枯萎病抗源,选育出一批抗病品种推广应用,有效地控制棉枯萎病的危害。57-681 was the first cotton resistant resource with high resistance to Fusarium wilt in China.The specific resistance of 57-681 was studied with artificial inoculating in seedling nursery.The results showed that 57-681 remained high resistance continuously after growing and selecting through artificial inoculating nursery year by year,and it possessed wider resistant spectrum,broad adaptability,and better genetic effect of resistance as well.It helped to the utilization of this resistant resource and a series of resistant cotton cultivars were gained with 57-681 used as resistant material in breeding in China.Thus cotton Fuarium wilt was effectively controlled by planting these resistant cotton cultivars.

关 键 词：棉花 枯萎病 抗源种质 抗性特异性 

分 类 号：S562[农业科学—作物学]