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农学学报

农学学报 ›› 2014, Vol. 4 ›› Issue (9): 19-24.

所属专题： 玉米； 小麦

• 农艺科学 作物遗传育种 生理生化 • 上一篇    下一篇

播期对太原地区麦茬复播玉米生育期、产量及产量构成因素的影响

孙贵臣 赵建栋 穆志新 周树军   

  • 收稿日期:2014-01-03 修回日期:2014-03-23 出版日期:2014-09-20 发布日期:2014-09-20

Effects of Sowing Data on Growth，Yield and Component factorws of Maize After Wheat stubble Resowing

  • Received:2014-01-03 Revised:2014-03-23 Online:2014-09-20 Published:2014-09-20

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摘要： 以4个极早熟玉米品种为试验材料，研究了3个播期对玉米生育期、产量及产量构成因素的影响。结果表明，在太原地区麦茬复播极早成熟玉米适宜播种期为6月25日-7月5日，最佳播期为6月25日。播期对品种播种至出苗、出苗至吐丝的生长发育天数影响不大，主要影响吐丝后籽粒灌浆期， 播种期推迟，日平均气温下降，玉米籽粒灌浆的进程变慢，持续时间延长。不同品种间、播期间及品种与播期互作之间产量差异均达极显著，6月25日播期宜选用并单6号熟期品种，6月30日播期宜选用九玉5号熟期品种，7月5日播期宜选用九玉1号熟期品种。推迟播期，百粒重减轻，穗行粒数减少，产量降低。

关键词: 杂交小麦, 杂交小麦, 产量形成, 产量构成, 光合生产, 群体结构, 源库关系

Abstract: Four the expecially early varieties were tested in three sowing data to study the variation on the growth，yield and yield component factors. The results showed that the optional sowing data after wheat stubble resowing was June 25-July 5 in Taiyuan region and the optimal sowing data was June 25. The effect of sowing-emergence and emergence-silking days was not significant, but a lagged grain filling was found in late sowed Maize. The results of yield showed that there was significant difference on different varieties，different sowing data and the difference of interaction effect between variety and sowing data in this study, difference varieties were sowed in difference sowing data, the optimal sowing data for Bingdan No. 6 was June 25，Jiuyu No.5 was June 30, Jiuyuzaoshu No.1 was July 5 . Later sowing dacreased 1oo-grain weight and grains per row, thus make the yield of maize was decreased .