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本试验研究了具不同血缘和基因频率的马铃薯杂种群体的主要经济性状表现和一致性的差异,结果表明: 1.马铃薯杂种优势的表现是以亲本自身生产力高低为前题的,由自身生产力较低的亲本产生的杂种群体,即使具有较高的杂合性,与也很难表现较高的产量,只有对亲本加以选择和在改造的基础上利用,才能充分表现其杂种优势。 2.Neo-tuberosum参与杂交的组合,优于其它类型的杂种群体,是目前马铃薯新品种和实生种子选育的最优组合方式。 3.杂种群体薯形,皮色和芽眼深浅等经济性状的一致性表现于群体的杂合性程度相关不同,而与两亲本在这些性状上的差异有关。因此选择在性状上差异较小的亲本杂交,是获得整齐一致实生种子的关键。
In this study, the main economic traits and consistency differences of potato hybrids with different blood relatives and gene frequencies were studied. The results showed that: 1. The performance of potato heterosis was based on the parent’s own productivity as the priority, by their own productivity Hybrids from low parents produce high yield even with high heterozygosity, and they can not fully express their heterosis only when they are selected and transformed. The combination of Neo-tuberosum hybridization is superior to other types of hybrid population, which is the optimal combination of new potato seed selection and seed selection. The homogeneity of economic traits such as potato-shaped, skin color and bud-eye depth in hybrid population is related to the degree of heterozygosity of the population, but related to the difference in these traits. Therefore, the selection of traits with minor differences in the parents is the key to obtaining a neat and consistent seed.