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大豆种粒大小是比较复杂的数量性状,由多对显性或部分显性基因所控制。辐射诱发大粒变异已经有过一些报道,认为辐射当代百粒重的平均值有明显增加,M_2朝正、负二个方向变异,M_3的百粒重平均值基本恢复常态,百粒重的遗传力低于熟期和株高,但高于单株产量。因为大豆种粒大小既与产量有关,也影响商品价值,所以本文就大豆大粒突变的诱发和对遗传参数的分析,试图阐明突变后的种粒大小的遗传规律,为辐射育种研究提供依据。一、材料和方法本试验开始于1977年。用γ-射线1.8万伦
Soybean grain size is a more complex quantitative trait controlled by multiple pairs of dominant or partial dominant genes. Radiation-induced large-grain variation has been reported in some reports, that the contemporary radiation hundred significant increase in the average value, M_2 positive and negative directions of the two directions, M_3 100-grain average basic normalized, 100-grain heritability Below maturity and plant height, but higher than the yield per plant. Because the size of soybean seed is not only related to yield, but also affects the value of the commodity, this paper attempts to elucidate the mutation of large grain and the analysis of genetic parameters in order to elucidate the genetic law of the size of mutant seed, and provide the basis for the study of radiation breeding. First, materials and methods The test began in 1977. With 18-ray γ-rays