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近年,山东地区推广应用的小麦品种,依分蘖成穗特点可分为两大类。一类为低分蘖成穗类型,其分蘖成穗率较低,最大群体的成穗率为20%～30%,多为大穗型品种,如鲁麦23号,莱州953,泰山021等;一类为高分蘖成穗类型,其成穗率为35%～45%,一般为中小穗品种,如鲁麦21号,鲁麦14号,济南16等。依据小麦的不同分蘖成穗特点搞好春季化控,获得合理的群体结构,是小麦防倒增产
In recent years, the wheat varieties promoted and applied in Shandong can be divided into two categories according to the characteristics of tillering and earring. One is of low tillering panicle type, and the tillering rate is lower. The spike rate of the largest group is 20% ~ 30%, mostly of large panicle type, such as Lumai 23, Laizhou 953, Taishan 021, etc. One is the type of high-tillering into ear, the spike rate of which is 35% ~ 45%, usually in the middle and small spike varieties such as Lumai 21, Lumai 14, Jinan 16 and so on. Based on the characteristics of different tillers and ears of wheat, it is necessary to improve the chemical control in spring and obtain a reasonable population structure,