栽培密度对早籼稻温229产量及其构成因素的影响

Effects of Cultivation Density on Yield and Its Components of Early Indica Rice Wen229

[目的]确定早籼稻温229高产栽培的最佳种植密度。[方法]采用2因素随机区组试验,研究不同栽培密度对早籼稻温229产量及其构成因素的影响。[结果]随着每丛本数及单位面积栽培丛数的增加,温229单位面积穗数显著增加,但每穗粒数、结实率总体趋势与之相反,千粒重基本不受密度变化影响。温229高产稳产、容易栽培,栽培密度以行株距20.0 cm×23.3 cm或20.0 cm×26.7 cm为宜,丛本数控制在4本为宜。[结论]该研究可为温229的高产优质栽培提供科学指导。

[Objective] The purpose was to confirm the best cultivation density of early indica rice Wen229.[Method] The two factors random experiments were conducted to study the cultivation density on yield and its components of early indica rice Wen229.[Result] The result were as follows： As the increasing of seedlings number per hill and hills number of per hectare,Wen229 number of productive ear increased,while its number of grains per panicle,grain filling rate decreased and the 1000-grain weight remained about the same.Wen229 had a higher and more stable yield and was easy to plant.In order to achieve high yield,the cultivation density should be suitably controlled as follows： The distance between rows should be 20.0 cm×23.3 cm or 20.0 cm×26.7 cm,and the seedlings number per hill should be 4 seedings.[Conclusion] The study provides a scientific guidance for Wen229＇s high yield and good quality cultivation.