在生产中培育和栽培塔什干抗病、丰产新品种,能够大大减少萎蔫病的损失,能够缩短成熟期和提高质量。但是,就育出抗病、丰产和早熟新品种来说,提高纤维品质却是育种中的主要问题。我们实验室已经研究出新的育种方法,并利用这种方法育出不少新品种。通过司4727品种和墨西哥半野生棉杂交,然后再用亲本的花粉与这个杂种的第三代回交,并对感染大百轮枝菌(属于生理小种1)的类型进行多次选择,曾育成塔什干4号品种,这个品 Cultivating and cultivating Tashkent’s disease-resistant and high-yielding new varieties in production can greatly reduce the loss of wilting disease, shorten maturity and improve quality. However, raising new fiber for disease resistance, high yield and precociousness is a major problem in breeding to improve fiber quality. Our laboratory has developed new breeding methods and used this method to breed many new varieties. Multiple selection of the type of Rhizoctonia solani (Belonging to Physiological Race 1) was performed by crossing the 4727 variety with the Mexican semi-wild cotton and then backcrossing the parental pollen with the third generation of this hybrid. Bred Tashkent 4 breed, this product