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黄瓜杂种一代在产量上的优势,国内外早有许多报道,并在生产上得到了广泛地应用,实践证明,黄瓜杂种一代优势利用是育种上一条经济有效的途径。F_1优势的大小,无疑与父母本遗传方式相关联,受遗传力大小所支配。那么,父母本对F_1究竟有多大的影响?也就是说,对于不同性状而言,父母本的遗传力究竟有多大?这方面的报道尚少。本文试图应用相对遗传力理论,结合我们的实践,对黄瓜几种主要经济性状的遗传力作初步分析。
The superiority of cucumber hybrids in yield has long been reported both at home and abroad and has been widely applied in production. Practice has proved that the superior utilization of cucumber hybrids is a cost-effective way to breeding. The size of the F_1 advantage is undoubtedly associated with the parental inheritance and is governed by the size of heritability. So, how much influence does the parent have on F_1? In other words, what is the heritability of the parents for different traits? This paper tries to apply the theory of relative heritability and combine with our practice to make a preliminary analysis of the heritability of several major economic traits in cucumber.