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经多年研究证明,由于所有对线虫具有某种程度抗性的陆地棉品种,都是抗枯萎病的,因此,要培育抗枯萎病的品种,必须首先培育抗线虫的品种。植株的根系因钻进了寄生线虫而刺激细胞发展形成根癌,后又形成根系肿瘤块。这是一种真菌病害,进入损伤了的根系并同时扩散到导水组织中去。镰刀菌使叶子发黄。很快就枯萎、落叶,造成植株早死。美国农业服务处,应用一个抗根癌的“墨西哥野生”原始品种,在亚拉巴马州的奥本培育了两个第十代杂交后代棉花繁育品系“A623”和“A61”。两者都具有特强的抗根癌和抗镰刀菌枯萎病的特性。
After years of research, it has been shown that, because all upland cotton cultivars resistant to nematodes are resistant to Fusarium wilts, it is imperative that the cultivar resistant to Fusarium wilt be first cultivated against nematode. Roots of the plant due to drilling into the parasitic nematodes and stimulate cell development to form a root, and then form a root tumor mass. This is a fungal disease that enters the damaged root system and simultaneously diffuses into the aqueduct. Fusarium leaves the leaves yellow. Will soon withered, deciduous, resulting in plant premature death. The US Department of Agriculture Service used two “wild Mexican” wild-type cultivars to breed two “A623” and “A61” cotton breeding lines for the tenth generation of offspring in Auburn, Alabama. Both have very strong resistance to root and Fusarium wilt disease.