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中国农学通报 ›› 2017, Vol. 33 ›› Issue (34): 9-14.doi: 10.11924/j.issn.1000-6850.casb17080005

所属专题: 小麦

• 农学 农业基础科学 • 上一篇    下一篇

灌水量对不同年代宁夏春小麦光合特性及产量构成因素的影响

白海波,吕学莲,惠建,董建力,朱永兴,李树华   

  1. 宁夏农林科学院农业生物技术研究中心,宁夏农林科学院农业生物技术研究中心,宁夏农林科学院农业生物技术研究中心,宁夏农林科学院农业生物技术研究中心,宁夏农林科学院农业生物技术研究中心,宁夏农林科学院农业生物技术研究中心
  • 收稿日期:2017-08-02 修回日期:2017-09-05 接受日期:2017-10-24 出版日期:2017-12-07 发布日期:2017-12-07
  • 通讯作者: 李树华
  • 基金资助:
    宁夏回族自治区农业育种专项项目“小麦分子育种技术应用研究”(3013NYYZ0202);宁夏农林科学院科技创新先导资金项目“春小麦灌浆期耐热相 关基因的挖掘”(NKYJ-15-07);宁夏回族自治区自然科学基金项目“宁夏春小麦抗早衰评价体系的建立”(NZ15118);国家自然科学基金项目“小麦碳同位素分 辨率对水分的及其遗传研究”(31060190)、“小麦碳同位素分辨率QTL定位及其与环境互作效应研究”(31160285)、“小麦抗旱耐热性QTL的遗传重叠及其与环 境互作效应研究”(31460345)、“小麦农艺水分利用率相关性状QTL定位”(31660394)。

Irrigation Amount Affecting Photosynthetic Characteristics and Yield Components of Spring Wheat in Ningxia

  • Received:2017-08-02 Revised:2017-09-05 Accepted:2017-10-24 Online:2017-12-07 Published:2017-12-07

摘要: 为揭示不同灌水量对不同年代春小麦光合特性及产量的影响,以5 个不同年代宁夏春小麦品种(系)为试验材料,在宁夏灌区4 种水分处理条件下,研究了灌水时期对不同年代宁夏春小麦品种光合生理指标及产量因子的影响。结果表明,不同时期灌水对春小麦叶绿素含量、净光合速率(Pn)、蒸腾速率(Tr)、水分利用率(WUE)等生理指标均产生明显影响;T1、T2 处理,‘毛火麦’和‘宁春27 号’的叶绿素含量、Pn、WUE较高,在T1、T2 和T3 处理下其产量与其他品种(系)差异不显著。随着灌水量的增加,灌区品种(系)‘宁春4 号’、‘宁春50 号’和‘J63’的叶绿素含量、Pn、WUE高于‘毛火麦’和‘宁春27 号’且产量正常灌水条件下显著高于其他处理。因此,宁夏灌区在保证分蘖期和拔节期灌水,增加抽穗期灌水,各品种(系)既保持较高水分利用效率,又可以获得较高的产量。

Abstract: To reveal the effects of different irrigation amounts on photosynthetic characteristics and yield of different years’spring wheat, experiments were carried out with four irrigation treatments and five different years’spring wheat varieties (lines) in Ningxia. The influence of irrigation stages on the photosynthetic physiological indexes and yield factors of spring wheat in Ningxia were researched. The results showed that different irrigation treatments had significant impact on chlorophyll contents, photosynthetic rate (Pn), transpiration rate (Tr), water use efficiency (WUE). Under T1 and T2, the chlorophyll contents, Pn, WUE of ‘Maohuomai’and‘Ningchun 27’were higher than that of other wheat varieties; while under T1, T2 and T3, the yield of‘Maohuomai’and‘Ningchun 27’had no significant difference with that of other wheat varieties. Along with the increase of irrigation amount, the chlorophyll contents, Pn, WUE of‘Ningchun4’, ‘Ningchun50’and‘J63’were higher than that of‘Maohuomai’and‘Ningchun27’, the yield of ‘Ningchun4’,‘Ningchun50’and‘J63’under normal irrigation was obviously higher than that of other treatments. Therefore, spring wheat could obtain higher WUE and yield with sufficient irrigation at tillering stage and jointing stage, and increasing irrigation at heading stage in Ningxia Yellow-river irrigating region.

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