国麦1号播期播量对群体发育及产量的影响

2002-2003年度在大田高产栽培条件下安排了国麦1号播期、播量裂区试验,对其群体结构指标、幼穗发育、产量与产量构成因素进行了观察和测定分析。结果表明,在本年度生态条件下,国麦1号的幼穗发育进程略晚于豫麦49。不同播期对产量、穗数、穗粒数影响不大,对千粒重影响明显,处理间差异达到显著水平;不同播量对产量、穗数影响均达到显著水平,对穗粒数的影响达到极显著水平。在河南省中部地区种植,可掌握在10月6日左右播种,基本苗控制在150万/hm2左右。

Effects of planting date and seed rate in group development and yield of Guo - mai 1

Analysis of data obstained by the population structure and young spike development and factors of yield formation through the split - plot expriment about planting dates and seed rate of Guo - mai 1 from 2002 to 2003 under high - yield planting conditions . The result indicated that Guo - mai 1' s progress in young spike development was a little later than yu - mai 49. Under the ecology in this year, different planting dates has little relation to yield and number of spikes and grains per spike, but the effect of 1000 grain Weight was significant. While different seed rate did effect to yield and number of spikes was significant, and the effect of grains per spike was very significant . The main points of cultivation techniques in henan province are as follows: planting date may be controlled around October 10 and seed rate should be controlled around 1,500 thousand per hectare.