高粱航天材料的筛选利用

Screening and Utilization of Sorghum Aerospace Materials

先后选用25份遗传性稳定、综合性状好的不同区域、不同遗传基础、不同类型的高粱品种进行航天诱变处理,通过田间对R2株系的观察分析,所有材料都有变异株出现,其中,恢复材料R111的变异频率高达10%,25个材料的平均变异频率为2%。筛选出4个高淀粉种质资源以及多个早熟、矮秆恢复系变异材料,并且以优良变异系为父本选育出一个优质、高产、多抗、矮秆杂交种晋杂26号。

25 sorghum test materials of genetic stability, and good comprehensive properties from different regions, different genetic variation and types were selected for aerospace mutation treatment. Through the observation and analysis of the R2 lines in field, all materials are the emergence of variant, the mutation frequency of R111 was as high as 10%, the average mutation frequency of 25 materials was 2%. This study got 4 high starch germplasm resources, screened several early maturing, dwarf restorer mutants, and fine variation lines as male parent to breed a high quality and yield, resistance, dwarf stem hybrids. It has been approved as Jinza 26.