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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (21): 80-84.doi: 10.11924/j.issn.1000-6850.2014-0101

所属专题： 小麦

• 农学 农业基础科学 • 上一篇    下一篇

不同播期与播量对 ‘九麦 2号’ 小麦产量及品质的影响

王楠   

  • 收稿日期:2014-01-10 修回日期:2014-02-19 出版日期:2014-07-25 发布日期:2014-07-25
  • 基金资助:
    国家 948计划资助项目 “2013年陕西省农业专项资金——粮油作物高产创建项目(2013-61.007.005191.04461)” (2012-G3)。

The Effect of Different Sowing Date and Rate on Yield and Quality of the Wheat Variety‘Jiumai2’

  • Received:2014-01-10 Revised:2014-02-19 Online:2014-07-25 Published:2014-07-25

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摘要： 为了探讨冬小麦在关中中部的最佳播期和最佳播量，以陕西省新审定小麦品种‘九麦2号’为材料，研究了在N、P、K配施基础上，不同播期与播量对其产量及品质的影响。试验采用两因素二次D饱和最优试验设计，设置4个播期水平，4个播量水平，6个处理组合，3次重复，随机排列。结果表明：‘九麦2号’在关中中部产量7500~8250 kg/hm2的适宜播期为10月11日到10月19日，适宜密度在2.17×106株/hm2到2.95×106株/hm2。在播期为10月17日，密度为2.45×106株/hm2时产量可达最高8512.5 kg/hm2。不同播期播量对‘九麦2号’小麦品质也有一定的影响，10月22日播种，密度1.80×106株/hm2处理籽粒品质较好，沉降值达到39.23 mL、蛋白质含量达到14.34%、湿面筋含量达到31.01%、稳定时间为9.35 min，拉伸面积为57.96 cm2。适期适量播种有利于提高‘九麦2号’小麦产量，适期晚播有利于改善其品质，适期晚播和适当加大播种密度有利于兼顾小麦产量水平与品质水平的协调一致。

关键词: 正调控作用, 正调控作用

Abstract: To explore the best sowing date and sowing quality of winter wheat in the middle of the guanzhong, new wheat variety‘Jiumai2’in Shaanxi Province was used as materials to studied the effects of different sowing date and sowing quality on the yield and quality based on application of N P K in proportion. This experiment designed with two factors quadratic saturation optimum, set up four levels of sowing and six processing combination, repeated three times and randomly arranged. The results revealed that suitable sowing date of‘Jiumai2’in central guangzhong was from October 11 to October 19, when its yield was 7500-8250 kg/ hm2, its suitable sowing rate was 2.17×106/hm2 to 2.95×106/hm2. When sowed in October 17, sowing rate was 2.45×106/hm2, the yield of‘Jiumai2’could increase to 8512.5 kg/hm2. Different sowing date and rate also had a certain influence on the quality of‘Jiumai2’. When sowed in October 22, sowing rate of 1.8×106/hm2, the grain’s quality of Jiumai was better: the sedimentation value was up to 39.23 mL, protein content was up to 14.34%; wet gluten content was up to 31.01%, stability time was 9.35min and extension area was 57.96 cm2. Therefore, suitable date and rate of sowing was beneficial to improve the yield of‘Jiumai2’, and suitable late sowing was beneficial to improve the quality, suitable late time and properly increased density was beneficial to both wheat yield and quality levels.