河南省小麦气候生态区划及生长发育特点

Climatic ecological division and growth characters of wheat in Henan Provice

摘要: 对影响小麦分蘖成穗、穗粒数、千粒重的12个气候要素，有代表性的8个地点进行模糊聚类分析，当选取λ值为0.857 时，将河南省小麦气候生态聚为4个类区；简述了各气候生态区的小麦品种布局原则、生育特点及进一步提高产量的关键措施。

Abstract: 12 factors that affect the wheat productive tiller number ratio,kernel number per spike,thousand-grain weight at eight typical sites in Henan Province were analysed and calculated by fuzzy clustering method.Henan Province is divided into four types of area at λ=0.857.which are south,north,middel-south and middel-north of Henan,respectively.The distribution principles of wheat varieties and characteristics of the growth and main measures for high yield in their climatic ecological regions were discussed.