密度对红豆草农艺性状和种子产量的影响

为了合理利用空间资源，提高红豆草种子产量，试验以奇台红豆草为材料，设置不同的种植密度，通过对株高、分枝数、荚果数、千粒重、种子产量等指标的测量，探寻密度与红豆草生殖格局的关系。试验结果表明，种植密度30 cm×25 cm时，单株花序数、荚果数、千粒重和种子产量最高，依次是81.1个、839.2个、23.8 g、1995.8 kg/hm²。通过相关性分析，种子产量与千粒重呈显著正相关，相关系数为0.631；种子产量与单株荚果数呈极显著正相关，相关系数高达0.998。

Effect of Density on Seed Yield and Agronomic Characters of Onobrychis viciaefolia

In order to reasonable use a space resource, and improve the seed yield of Onobrychis viciaefolia. Experiment with the material of Qitai Onobrychis viciaefolia, by setting different planting density. The relationship of planting density on seed yield of Onobrychis viciaefolia that was researched by plant height, branches of plant, number of pod, 1000-grain weight and seed yield. The results showed that, the density of 30 cm×25 cm was better than others. The breed branches of plant, number of pod,1000-grain weight and seed yield were 81.1, 839.2, 23.8 g and 1995.8 kg/hm2. Relevance analysis showed that, the seed yield and 1000-grain weight had significant correlation 0.631; the seed yield and the number of pod correlation coefficient was above 0.998.