赣油14号不同直播密度的产量比较

Yield Comparative Experiment of Hybrid Rapeseed--Ganyou 14 in Different Planting Density

通过不同直播密度试验 ,研究赣油 14号种植密度与群体产量及产量结构的关系。结果表明 :在本试验条件下 ,赣油 14号在密度为 18万株 /hm2 时产量最高 ,达 2 2 2 7.5kg/hm2 ;随着种植密度的增大 ,单位面积有效角果数与群体产量变化较大 ;均表现先增后减 ,变异系数分别为 17.70 %和 3 .40 % ,每角粒数与千粒重变化较小 ,变异系数分别为 1.3 7%和 1.44 %。

This experiment in different planting density of Ganyou 14 was carried out to research the effect of density on the yield and yield components. The result showed as follows: the highest yield of Ganyou 14 in this experiment appeared in the treatment with density of 18.0×104 plants per hectare, the yield was 2 227.5kg per hectare. As planting density increased, the number of pods and yield increased firstly and then decreased seeds per pod and 1000-seed weight was little change.