论文部分内容阅读
对玉米辐照诱变自交系杂交一代的12个性状优势研究表明,穗粒重的优势最强,穗重次之,穗位高、雄穗分枝数、株高、每行粒数、穗长、穗位叶面积、茎粗、千粒重、穗行数、出籽率顺序依次递减。杂交一代的穗重、穗长、每行粒数、千粒重与父、母本同一性状间的相关不显著,但与父、母本不同性状间呈一定的相关性,可作为选择杂交亲本时参考。杂交一代的株高与父、母本任何性状的相关性都不显著,因此,很难通过选择亲本来控制杂交一代的株高。
The research on 12 traits of inbred lines of mutagenic maize induced by radiation showed that grain weight had the strongest advantage, followed by spike weight, ear height, branch number, plant height, grain per line, Ear length, ear leaf area, stem diameter, 1000-grain weight, ear number, seedling rate decreased in descending order. The correlation between panicle weight, panicle length, grain size per line, 1000-grain weight and the same traits of parents and maternal parents was not significant, but had some correlation with different traits of parents and maternal parents, which could be used as reference for selecting hybrid parents . No significant correlation was found between the plant height of the cross and any of the parents and maternal parents. Therefore, it is difficult to control the height of the cross of the cross by selecting the parents.