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从1984年8个春小麦不同品系试验研究结果认为:在干旱、半干旱生态环境下,降雨量、土壤肥力能基本保证小麦正常发育时,矮秆宽叶水地型品系与高秆窄叶早地型品系的主要形态特征有明显区别。水地型品系产量低于早地型品系。说明:干旱、半干旱生态型的特殊性和不同类型品种(系)对其生态环境的相对适应性。本文就此提出在干旱、半干旱生态环境下,开展引种和生态育种的讨论意见。黄土高原干旱、半干旱地区的小麦生产主要依赖数量少、变率大的天然降雨。山旱地小
According to the experimental results of eight spring wheat varieties in 1984, it is concluded that under the arid and semi-arid ecological environment, rainfall and soil fertility can basically guarantee the normal development of wheat. When the dwarf and broad-leaved water- The main morphological characteristics of the Department of products have obvious differences. The yield of water-type strains is lower than that of the early-type strains. Description: Arid and semi-arid eco-specific and different types of varieties (lines) of their relative adaptability to the environment. This paper put forward in the arid and semi-arid ecological environment, the introduction of introduction and ecological breeding discussions. Wheat production in the arid and semi-arid areas of the Loess Plateau relies mainly on natural rainfall with small numbers and large variability. Small mountain dry land