新的绿色革命:揭示杂种优势之谜的秘密——遗传力(只需一代就可以进行分析)<英>

<正> Recently, a new method has been published which promises to revolutionize agriculture in a way even more spectacularly than the green revolution of the 70's in the previous century①. For want of a better term, I shall call it the New Green Revolution. The theory is straightforward, and the method simple.Take any pure strain / breed, and cross it with another such, for both which we know the heritability of some strait, the heritability of this cross may then be easily obtained from the F1 population, which for convenience we may call the crossheritability, xh2. This crossheritability may be used to predict the genetic advance in the F2 generation, the gain depending on the selection intensity practised. Further, if we subtract this xh2 which corresponds to the additive component of the