不同供磷水平对小麦植株蔗糖含量和农艺性状的影响

EFFECTS OF DIFFERENT LEVELS OF PHOSPHORUS FERTILIZER ON SUCROSE CONTENTS AND AGRONOMIC TRAITS IN WHEAT

利用盆栽试验,研究不同供磷水平对小麦植株体内无机磷与蔗糖含量及经济性状的影响。结果表明,随着施磷量的增加,小麦不同生育时期的植株体内无机磷含量明显增加,而茎叶中蔗糖含量呈降低趋势。盆栽产量则随施磷量的增加而提高,磷素对产量影响的主要因素是促进苗期分蘖,提高小麦的有效穗数。

A pot culture experiment was carried out to study the effect of different phosphoric fertilizer rates on sucrose content and agronomic traits of winter wheat.The results show that with the increasd of applied phosphoric fertilizer the inorganic phosphate(Pi) content increases obviously in wheat plants, and the sucrose content in wheat shoot was reduced at different developing stages.Wheat yield of pot culture increases with the increasing of application rate of phosphoric fertilizer,and the main factors for yield increasing are of tillering promotion and effective ears bearing.