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采用大田随机区组试验设计,以荞麦品种赤峰1号为试材,研究了不同密度水平对植株生长及结实特性的影响。结果表明:荞麦的百粒重和平均结实率随种植密度增大呈递增趋势。荞麦的落粒率随着种植密度增大呈先减后增的趋势。相关分析表明,荞麦的落粒率与总粒重、有效株数呈显著负相关关系。荞麦的结实率与荞麦各农艺指标、落粒率均没有显著的相关性。从降低落粒率角度看,荞麦的适宜密度在30万株/hm2。
Using randomized block trial in Daejeon, the effect of different density levels on the growth and fruiting characteristics of plants was studied using Chifeng 1, a buckwheat cultivar. The results showed that the 100-grain weight and average seed setting rate of buckwheat increased with planting density. The falling rate of buckwheat tended to decrease first and then increase with the increase of planting density. Correlation analysis showed that there was a significant negative correlation between the falling rate of buckwheat and the total grain weight and effective number of trees. There was no significant correlation between the seed setting rate of buckwheat and each agronomic index and drop rate of buckwheat. From the perspective of reducing the falling rate of grain, the suitable density of buckwheat is 300,000 plants / hm2.