南疆移栽棉密度的影响效应

目的]研究不同密度条件下,穴盘苗与裸根苗移栽杂交棉生长发育特性及产量特征。方法]在大田栽培条件下对穴盘苗与裸根苗移栽杂交棉设置5个密度处理,结合其产量特征进行模型拟合和图表分析。结果]密度对2种方式的移栽棉个体产量性状均可以很好地用函数模型表示;裸根苗移栽棉叶枝产量较穴盘移栽苗高,2年结果均表现出随密度增加裸根苗产量高于穴盘苗。结论]穴盘移栽苗的生长竞争效应大于裸根苗移栽棉。从节本增效角度出发,裸根苗移栽更具有推广价值。

Effects of Density on Cotton Seedling Transplanting in Southern Xinjiang

Objective] The growth characteristics and yield characteristics of plug and bare root seedlings transplanting hybrid cotton were studied.Method]Cultivation in field conditions,plant plug and bare root seedlings transplanting hybrid cotton in 5 different densities,its yield structure with model fitting and charting was studied.Result]The yield of individual cotton transplanting in two ways could be expressed by good function model with density.The yield of leafy seed cotton about bare root seedlings trans...