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针对高效率地选育水稻高产良种问题,我们曾报导过(1980)以穗长、穗重作为限制性的选择指标.这种方法简单易行,但没有同影响产量的叶片性状结合.如果能够很好证明叶片性状能对产量起显著作用,而对其它不利于提高产量的性状能起到微促或抑制作用,即可将其作为选择高产良种的替代选择指标,有效地用以筛选大量的群体.达恩霍夫(1970)、皮尔士等(1969)、塞林(1974)曾提出油菜等作物用叶片比重较为适宜.因
We have reported (1980) that spike length and panicle weight are the limiting selection criteria for high-yielding high-yielding rice varieties. This method was simple and easy to use but did not combine with yield-affecting leaf traits. It is well demonstrated that leaf traits can play a significant role in yield, while they play a minor or inhibitory role on other traits that are detrimental to increasing yield, which can be used as an alternative selection indicator for high yielding varieties, effectively screening large quantities of Groups.Danhoff (1970), Pierce et al. (1969), Salin (1974) put forward the rapeseed and other crops with specific gravity is more appropriate.