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本文利用主成分排序和模糊聚类分析方法对黄淮冬麦区、北部冬麦区、北部春麦区及西北春麦区的41个高产小麦品种的株型的生态分布进行了研究。结果表明,北方麦区现代高产小麦品种的株型与各自的生态条件相适应;按小麦株型结构,把北方麦区小麦品种划分为平原型和高原型,讨论了不同类型的育种改良方向。
In this paper, the ecological distribution patterns of 41 high-yielding wheat cultivars in Huanghuai winter wheat area, northern winter wheat area, northern spring wheat area and northwest spring wheat area were studied by using principal component ranking and fuzzy cluster analysis. The results showed that the plant types of modern high-yielding wheat varieties adapted to their respective ecological conditions in the northern wheat areas. According to the plant structure of wheat, the wheat varieties in northern wheat areas were divided into plain and plateau types, and the different types of breeding directions were discussed.