不同密度条件下新海14号干物质积累规律研究

Study on the Dry-matter Accumulation of Xinhai 14 in Different Densities

通过随机区组设计、室内称重的方法,研究了主栽品种新海14在不同密度条件下不同时期的干物质积累规律,以便为南疆长绒棉的合理密植及田间合理化管理提供理论依据。研究结果表明:新海14号在不同密度条件下干物质积累动态变化遵循logistic曲线;适宜的密度有利于后期产量器官干物质的积累;新海14号在南疆的适宜种植密度为27万株/hm2。

In order to provide scientific basis for rational close planting and management of Cotton production in south Xinjiang, the study has been made in this experiment on the regulation for Xinhai 14 to accumulate dry-matter in different period and density by random arrangement and indoor weighting. The result shows that the regulation follows logistic curve. The rational density is helpful to the dry-matter accumulation in later periods. The suitable density of Xirdaai 14 should be 270,000/hm^2 in south Xinjiang.