申孝军, 孙景生, 刘祖贵, 张俊鹏, 刘小飞. 灌水控制下限对冬小麦产量和品质的影响[J]. 农业工程学报, 2010, 26(12): 58-65.
    引用本文: 申孝军, 孙景生, 刘祖贵, 张俊鹏, 刘小飞. 灌水控制下限对冬小麦产量和品质的影响[J]. 农业工程学报, 2010, 26(12): 58-65.
    Shen Xiaojun, Sun Jingsheng, Liu Zugui, Zhang Junpeng, Liu Xiaofei. Effects of low irrigation limits on yield and grain quality of winter wheat[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(12): 58-65.
    Citation: Shen Xiaojun, Sun Jingsheng, Liu Zugui, Zhang Junpeng, Liu Xiaofei. Effects of low irrigation limits on yield and grain quality of winter wheat[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2010, 26(12): 58-65.

    灌水控制下限对冬小麦产量和品质的影响

    Effects of low irrigation limits on yield and grain quality of winter wheat

    • 摘要: 为制定冬小麦的优质高效灌溉指标,通过3个生长季(2005-2008年)的人工控水试验,研究了不同灌水控制下限对冬小麦生长、产量和品质的影响。结果表明,与对照相比,播种—拔节前期水分胁迫对冬小麦生长、产量及品质的负面影响不明显,且可节水11.68%~18.18%,水分利用效率提高8.33%~12.5%;拔节—抽穗前期水分胁迫对冬小麦生长的抑制作用最明显,使籽粒出粉率、蛋白质质量分数显著降低,面团形成时间和稳定时间显著缩短,产量降低6.56%~9.08%,但可节水24.29%~31.95%,水分利用效率提高6.19%~10.63%;抽穗扬花期水分胁迫对冬小麦生长没有明显影响,虽显著提高了籽粒蛋白质、湿面筋、氨基酸质量分数和出粉率,但减产9.96%~11.35%,水分利用效率仅提高了4.12%~5.62%;灌浆成熟期水分胁迫对冬小麦生长影响最小,籽粒蛋白质、湿面筋、氨基酸质量分数和出粉率均显著提高,但大幅度降低了产量,水分利用效率只提高了1.03%~5.95%。华北地区冬小麦优质高效节水灌溉指标是:播种—拔节前期、拔节—抽穗前期、抽穗扬花期和灌浆成熟期的灌水控制下限分别为50%、65%、70%和65%田间持水率。

       

      Abstract: In order to formulate a high quality and efficient irrigation index of winter wheat in north China, a three-year field experiment was conducted from 2005 to 2008 to investigate the effects of different low irrigation limits on crop development, grain yield and grain quality of winter wheat under water controlling conditions. Results showed that compared with traditional method (proper soil water treatment at the whole period), there was no significant negative effect on crop growth, grain yield and quality of winter wheat. 11.68%–18.18% water were saved, and water use efficiency improved by 8.33%–12.5% under water stress during sowing to early jointing stage. Under water stress at jointing to early heading stage, there was most obvious inhibitory effect on crop growth of winter wheat, which caused Flour field, protein content, dough development time and stability time of grain significantly decreased, and 24.29%–31.95% water was saved, grain yield reduced by 6.56%–9.08%, but water use efficiency was improved by 6.19%–10.63%. Under water stress at heading to flowering stage, there was no significant negative effect on crop growth of winter wheat, protein content, wet gluten content, amino acids content and flour yield of grain increased significantly, but grain yield reduced by 9.96%–11.35%, water use efficiency was improved by 4.12%–5.62%. Water stress, occurred at the filling to ripening stage, had the least influence on crop growth of winter wheat, and significantly increased protein content, wet gluten content, amino acids content and flour yield of grain, but decreased grain yield significantly, and increased water use efficiency by 1.03%–5.95%. It was concluded that adequate water stress being permitted at sowing to jointing stage could be the high quality and efficient irrigation index of winter wheat in north China, low irrigation limits at sowing to early jointing stage, at jointing to early heading stage, at heading to flowering stage and at filling to ripening stage were 50%, 65%, 70%, and 65% of field capacity, respectively.

       

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