山东农业科学Issue(7)：51-54,4.
高产广适小麦新品种鲁-502适宜播期播量研究
Study on Optimal Sowing Date and Seeding Density of New Wheat Variety Luyuan 502 with High Yield and Wide Adaption
摘要
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 .关键词
鲁原502/播期/播量/产量构成因素Key words
Luyuan 502/Sowing date/Seeding density/Yield components分类
农业科技引用本文复制引用
李鹏,孙明柱,张凤云,高国强,李新华..高产广适小麦新品种鲁-502适宜播期播量研究[J].山东农业科学,2014,(7):51-54,4.基金项目
国家“863”计划项目（2012AA101202）；国家科技支撑计划项目（2013BAD01B02）；国家公益性行业科研专项（201303007-1）；山东省自主创新专项“大宗农作物商品种培育与产业化-小麦良种”；山东省农业良种工程项目“高产优质抗逆超级小麦新品种培育” （）
