Study on Optimal Sowing Date and Seeding Density of New Wheat Variety Luyuan 502 with High Yield and Wide Adaption
Li Peng
Sun Mingzhu
Zhang Fengyun
Gao Guoqiang
Li Xinhua
Abstract：In order to provide available cultural techniques for high yield and wide diffusion of new wheat variety Luyuan 502 , the effects of sowing date and seeding density on yield and its components were re -searched .The results showed that the yield and spikes per hectare decreased gradually with the delay of so-wing date , while the kernels per spike and 1 000-grain weight increased .The effect of sowing date on 1 000-grain weight was the highest , and then the spikes per hectare and kernels per spike in order .With the in-crease of seeding density , the yield increased gradually;the spikes per hectare increased firstly and then ten-ded to be stable;the kernels per spike and 1 000-grain weight decreased .The effect of seeding density on yield components was kernels per spike >1 000-grain weight>spikes per hectare .The suitable sowing date of Luyuan 502 was October 4~12 in Jinan and surrounding areas , and the optimum seeding density ranged from 225.0 ×104 to 270.0 ×104 plants per hectare.Therefore, in order to obtain high yield of Luyuan 502, the suitable sowing date and seeding density should be firstly considered to get ideal effective spikes ,and the kernels per spike and 1 000-grain weight should be improved synchronously .
Keywords：Luyuan 502Sowing dateSeeding densityYield components
Publication Date：2014-07-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 51-54 )