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以8个不同基因型组合为母本、以玉米单倍体诱导系JS6-1为父本,在长春、榆树和白城3种不同生态环境下研究单倍体诱导率、自然加倍率和秋水仙素处理加倍率。结果表明,不同地点和不同基因型材料的玉米单倍体诱导率、自然加倍率和化学加倍率之间差异显著,在长春的单倍体诱导率(15.9%)、自然加倍率(2.6%)和除草剂Amiprophosmethyl(APM)加倍率(15.6%)显著高于榆树和白城,说明长春更适合玉米单倍体诱导和加倍。不同基因型组合的诱导率和加倍率也存在显著差异。选择合适地点和基础材料,加强田间管理是提高单倍体育种效率的关键措施。
Using 8 different genotypes as the female parent and JS6-1 maize haploid induction line as the male parent, the haploid induction rate, natural doubling rate and colchicus were studied in three different ecological environments of Changchun, Elm and Baicheng Prime processing magnification. The results showed that the haploid induction rate, the natural doubling rate and the chemical doubling rate were significantly different among different locations and genotypes. The haploid induction rate (15.9%), natural doubling rate (2.6%) And herbicide Amiprophosmethyl (APM) magnification (15.6%) were significantly higher than elm and Baicheng, indicating that Changchun is more suitable for maize haploid induction and doubling. There were also significant differences in the induction rates and doubling rates among different genotype combinations. Choosing the right place and basic materials to strengthen field management is the key measure to improve the efficiency of haploid breeding.