冬小麦冬前主茎叶片和各级分蘖发生规律研究

Study on the law of Winter Wheat's Main Stem Leaves and Various Tiller's Poducing Before Winter

根据南疆气候的特殊性及冬小麦的生育规律,我们做了对不同品种(系)冬小麦的冬前主茎叶片数、分蘖数、出叶速度和单株产量等性状的调查,结果表明:早熟品种的出叶速度明显高于中、晚熟品种的出叶速度;冬小麦冬前主茎叶片数、分蘖数、以及出叶速度对产量都呈负相关关系。为今后在农业生产中对冬小麦不同类型品种采取相应栽培管理措施提供理论依据。

According to the specialty of the climate in the southern Xinjiang and the planting's law of winter wheat, we investigated the features of various winter wheat, such as the number of main stem leaves and tillers, the speed of producing leaves and the yield of individual plant, the result showed: The speed of producing leaves of precocious varieties is remarkable higher than that of serotinous varieties and middle varieties; the correlation that the number of main stem leaves, the number of tiller and the speed of producing leaves are related with the yield of individual plant is negative. Therefore it provided theoretical basis for various winter wheat's cultivable and manageable measures.