种植密度对商豆14产量及品质的影响

Effects of Planting Density on the Yield and Quality of Shangdou 14

[目的]研究不同种植密度对商豆14产量及品质的影响。[方法]研究种植密度对商豆14生物学性状、产量及其构成因素及品质的影响。[结果]株高、节间长度与密度呈正相关,茎粗、分枝数、单株荚数与密度呈现负相关。单株产量、单株荚数、单株粒数与密度呈现负相关,百粒重与种植密度呈现正相关;脂肪含量与密度呈现正相关,蛋白质含量、脂肪+蛋白质总含量与密度呈现负相关。[结论]商豆14的最佳密度为25.5万~28.5万株/hm^2,其产量为4 680.12~4 746.79 kg/hm^2,脂肪+蛋白质总含量为60.07%~61.19%。

[Objective] To research the effects of planting density on the yield and quality of Shangdou 14.[Method]We researched the effects of planting density on biological character,yield,yield component factors,and quality of Shangdou 14.[Result] Plant height and internode length were positively correlated with planting density;stem diameter,branch number,number of pods per plant were negatively correlated with planting density;Yield per plant,number of pods per plant and grain number per plant were negatively correlated with planting density;100-grain weight and fat content showed positive correlation with planting density.Protein content,fat＋protein content showed negative correlation with planting density.[Conclusion]The optimal planting density of Shangdou 14 was 255 thousand-285 thousand plants/hm^2.Under this condition,the yield was 4 680.12-4 746.79 kg/hm^2 and the fat＋protein content was 60.07%-61.19%.