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杂种第一代表现显性是孟德尔首先提出来的。后来发现显性有各种程度上的区别,于是乃有显性度概念。育种上认为凡是F1平均值大于两亲本平均值的算术平均数(或称中亲值)的称为杂种优势(或称离中优势);或者把超过大值亲本的称为超亲优势或超显性。 杂种一代所具遗传性状表现显性的
The dominant first generation of hybrids is Mendel’s first proposal. Later discovered that there are various degrees of explicit distinction, so there is the concept of dominance. Breeding that all the average value of F1 is greater than the average of the parents of the average (or mid-value) known as heterosis (or from the advantage); or more than the large value of the parent called super-affinity or super Dominant. The hybrids have dominant genetic traits