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谷子(粟)适应性较广,但具体到一个品种则适应范围狭窄。在我国按谷子的分布划分为东北平原生态区、西北高原春谷区和华北夏谷区,其生态类型差别很大。为了明确在华北平原的生态条件下,夏谷高产品种应具有的形态特征,提高夏谷育种选择效果,笔者在1974年研究了夏谷主要性状遗传力、遗传相关和选择指数的基础上,进一步对夏谷产量相关的主要农艺性状的通径系数,进行了探讨。
Millet (Millet) adaptability is broader, but the specific to a variety of narrow range of adaptation. According to the distribution of millet in our country, it is divided into the ecological zone of Northeast Plain, Spring Valley of Northwest Plateau and Xiagu Valley of North China. The ecological types vary greatly. In order to clarify the morphological characteristics of high-yielding varieties of Summer Valley under the ecological conditions of the North China Plain and to improve the selection effect of Summer Valley breeding, based on the study of the heritability, genetic correlation and selection index of the main characters of Summer Valley in 1974, The path coefficient of the main agronomic traits related to summer grain yield was discussed.