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小麦品种混杂会给生产上带来损失。但不恰当地估价,又会以品种混杂掩盖许多问题,影响因地制宜和良种良法应有的效果。据我省有关资料报道小麦品种混杂带来的减产估计在10％以上。不过,国内外文献上过去和现在都有生产上利用特定混合品种群体争取高产稳产的记载。将特定品种按比例混种,作为一种增产措施。针对不同的观点,三年来,我们对一些品种混合群体的情况作了小型观察试验。一、试验材料及方法由1979年秋播起,每年都种几个混合品种群体,播种材料按要求粒数混合。试验地为夏
Mixed wheat varieties will bring loss of production. However, improper valuation will again cover many problems with variety breeds and will have an effect on the local conditions and on the good seed law. According to the relevant information in our province, it is estimated that the yield reduction brought by the mixed wheat varieties is above 10%. However, the literature both at home and abroad has traditionally and historically used the record of making use of specific mixed breeds for high and stable yield. Specific species will be mixed in proportion, as an increase in production. In response to different points of view, in the past three years, we have made small-scale observations on the mixed population of some varieties. First, the experimental materials and methods broadcast from the autumn of 1979, each year several species of mixed breeds, sowing materials mixed by the required number of particles. Test for the summer