面条专用小麦生长发育和产量及品质的密度效应研究

Study on Density Effect on the Growth and Development,Yield and Quality of Winter Wheat for Noodle

不同密度对面条专用小麦品种小偃 5 0 3生长发育与产量构成有较显著的影响。分蘖发生和消亡规律、有效成穗数、次生根数、产量在不同密度条件下有较大差异 ;面条专用小麦品种小偃 5 0 3在关中平原种植 ,密度 (播种量 )以 1 0 5 kg/hm2 表现最优 ,群体、个体特征及品质性状较好。

This paper studied the effect of density on growth and development, yield and quality of winter wheat for noodle. The results showed that density significantly influenced the growth and vanish and earbearing of tillerings and the amount of secondary root, and therefore it could remarkably affect the yield. Each variety and ecological zone has its most suitable density level, in this experiment with Xiaoyan No.503 in Guanzhong plain, the density of 105 kg/hm 2 appeared the best colony and individual effect and better quality properties, hence it was the most optimum density.