栽培密度对早籼稻温229产量及其构成因素的影响

[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。

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

[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.