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中国农学通报 ›› 2017, Vol. 33 ›› Issue (18): 7-12.doi: 10.11924/j.issn.1000-6850.casb16100050

所属专题: 小麦

• 农学 农业基础科学 • 上一篇    下一篇

补灌对旱地高产小麦生育后期碳代谢及产量的影响

孙旭生,刘义国,林琪   

  1. 烟台市种子管理站,青岛农业大学,青岛农业大学
  • 收稿日期:2016-10-13 修回日期:2016-11-18 接受日期:2016-11-25 出版日期:2017-06-28 发布日期:2017-06-28
  • 通讯作者: 林琪
  • 基金资助:
    “十二五”农村领域国家科技计划课题“鲁东丘陵区小麦玉米水肥自然资源高效利用综合技术集成与示范研究”(2013BAD07B06-3);国家 星火计划项目“小麦玉米周年滴灌水肥一体化技术示范与推广”(S2015C620029)。

Effects of Supplement Irrigation on Carbon Metabolism at Later Developing Stages and Yield of High-yield Wheat in Dry Land

林琪   

  • Received:2016-10-13 Revised:2016-11-18 Accepted:2016-11-25 Online:2017-06-28 Published:2017-06-28

摘要: 为探讨旱地高产麦田的高产潜力,在莱阳市冯格庄的旱地高产麦田研究了补充灌水对旱地小麦生育后期碳代谢的影响。结果表明:补灌对旱地小麦旗叶碳代谢指标有一定的调节作用。随着补灌次数的增加,叶片和茎部可溶性糖、蔗糖含量均呈现先升高后下降的单峰曲线变化。W4 由于继续补灌导致灌浆前期籽粒可溶性糖含量低。W2 处理籽粒灌浆期间,营养器官糖含量供应稳定,为籽粒淀粉积累提供足量的合成底物。在W2 水平下,旗叶的磷酸蔗糖合成酶和蔗糖合成酶活性达到最高。表明通过一定农艺措施改造的旱地高产麦田有较强的蓄水保墒能力,一定程度上达到“旱地不旱”。

关键词: 硒肥, 硒肥, 中药材, 品质, 硒含量

Abstract: To study the potential of high-yield winter wheat in dry land, the effects of supplementary irrigation on carbon metabolism in late growth stage of high-yield winter wheat in dry land were studied. The results showed that supplementary irrigation obviously regulated the carbon metabolism index of flag leaf in dry land. With the increase of supplementary irrigation time, the changes of soluble sugar and sucrose content in leaf and stem showed a single peak curve, which rose first and then declined. Because of excessive water, soluble sugar content in grain of W4 was relatively low in the early filling stage. Sugar in nutritive organs of W2 was stably supplied at the filling stage, which provided enough synthesis substrate for the accumulation of grain starch. The SPS and SS activity in flag leaves were the highest in W2. It showed that by a certain agronomic measures, dry land could have higher capability of water storage and moisture conservation, thus to reach the goal of“the dry land which are not drought”to a certain degree.