不同播期对小麦农艺性状的影响

目的]在鹤壁市开展小麦（Triticum aestivum Linn.）不同播期种植试验.方法]将小麦分4批进行播种,对小麦不同播期（10月1、8、15、22日）出苗时间、基本苗数、主茎叶龄、分蘖期、茎蘖数、灌浆速率等农艺性状及产量进行研究.结果]10月8～ 15日播种的小麦进入返青期后生长优势明显,有效分蘖、叶面积系数、结实小穗数、每穗粒数、千粒重、结实率均高于其他播期,理论产量和实际产量最高,为鹤壁市小麦最佳播种期.结论]该研究可为鹤壁地区小麦高产栽培体系建立提供参考.

Effects of Different Sowing Dates on Agronomic Traits of Wheat（Triticum aestivum Linn.）

Objective] The aim was to carry out the planting test of different sowing dates of wheat in Hebei City.Method] The wheat seeds were divided into 4 groups to sow,and then their agronomic traits under different sowing dates（October 1,8,15,22）,such as emergence time,the basic seedlings number,the leaf age of the main stem,the tillering stage,the tiller number,the filling rate,and yield were studied.Method] The wheat seedling sowed at October 8-15 had obvious growth advantage starting from the returning green stage,and the effective tillers,leaf area index,fertile spikelets,grains per spike,1 000-grain weight,and setting rate were all higher than those of the other sowing dates,and the theoretical yield and actual yeld were the highest,so it was the best sowing date of wheat in Hebei City.Conclusion] The study provides a reference for high yield cultivation system of wheat in Hebei Area.