北方麦区主要小麦品种株高构成指数的非线性映射

利用非线性映射对黄淮冬麦区，北部冬麦区、北部春麦区及西北春麦区，８０年代大面积推广的４１个小麦品种株高构成指数的地理差异进行了研究，结果表明，这些主要推广品种绝大多数为中产或中高产类型，麦区间小麦品种株高构成指数未见明显差异。

Mapping of Major High Yielding Wheat Cultivars in Northern Part of China Based on Plant Hight Component Indexes

Geographical difference of plant height component indexes of 41 high yielding wheat cultivars grown in Huang-Huai valley winter wheat region,northern winter wheat region,northern spring wheat region and northwestern spring wheat region was studied using mapping.The results showed that most of these wheat cultivars belonged to middle or middle-high level type and the difference of plant height component indexes of high yielding wheat cultivars among 4 wheat regions was not significant.