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1985~1988年对棉花种子抗霉变筛选技术中的几个问题进行了探讨,初步结果,室内测定种子对霉菌感染状况,抗感品种间差异比较明显;在低温条件下,抗霉菌和发芽慢的种子在田间表现,其苗病、枯萎病、黄萎病均有明显减轻的趋势。抗、感品种之间和室内抗霉菌的结果一致;室内筛选出抗霉菌好的材料在盆栽中再经苗病、枯萎病、黄萎病的程序间接改良筛选,可较快的获得多抗材料;对棉属不同的3个栽培种抗霉能力均有差别,其中,中棉抗性最强,陆地棉次之,海岛棉最差;种子抗霉菌性状与棉苗根病、枯萎病、黄萎病的抗病性及子棉产量间有一定的相关性,对加快多抗育种及培育新品种均有促进作用。
From 1985 to 1988, several problems in anti-mildew screening of cotton seeds were discussed. The preliminary results showed that there were obvious differences between the tested and the susceptible cultivars in the indoor seeding conditions; at low temperature, anti-mold and germinating slow Of the seeds in the field performance, its seedling disease, blight, Verticillium wilt have significantly reduced the trend. Anti-susceptible varieties and indoor anti-mildew results consistent; Indoor screening of good anti-mold material in the pot again by the disease, blight, Verticillium wilt indirectly improved screening process, faster access to multi-resistant material ; The three cultivars of cotton genus had different anti-mildew abilities, among them, the strongest in cotton, the second in cotton and the lowest in sea island cotton; There was a certain correlation between the disease resistance and the yield of cotton seedlings, which could accelerate the multi-resistance breeding and cultivate new varieties.