张芮,成自勇. 调亏对膜下滴灌制种玉米产量及水分利用效率的影响[J]. 华南农业大学学报, 2009, 30(4). DOI: 10.7671/j.issn.1001-411X.2009.04.023
    引用本文: 张芮,成自勇. 调亏对膜下滴灌制种玉米产量及水分利用效率的影响[J]. 华南农业大学学报, 2009, 30(4). DOI: 10.7671/j.issn.1001-411X.2009.04.023
    Effect of Regulated Deficit Drip Irrigation on Yield and Water Use Efficiency of Plastic Film Mulched Corn for Seed[J]. Journal of South China Agricultural University, 2009, 30(4). DOI: 10.7671/j.issn.1001-411X.2009.04.023
    Citation: Effect of Regulated Deficit Drip Irrigation on Yield and Water Use Efficiency of Plastic Film Mulched Corn for Seed[J]. Journal of South China Agricultural University, 2009, 30(4). DOI: 10.7671/j.issn.1001-411X.2009.04.023

    调亏对膜下滴灌制种玉米产量及水分利用效率的影响

    Effect of Regulated Deficit Drip Irrigation on Yield and Water Use Efficiency of Plastic Film Mulched Corn for Seed

    • 摘要: 采用大田膜下调亏滴灌试验,在苗期至拔节、拔节至抽穗、抽穗至灌浆和灌浆至成熟期进行水分胁迫处理.结果表明,拔节至抽穗期缺水抑制叶面积的扩展,造成植株矮小,产量降低;抽穗至灌浆期胁迫影响制种玉米库容建立,籽粒小、千粒质量低;持续或交替水分胁迫严重抑制叶龄进程,显著降低产量;灌浆至成熟期缺水可在不明显降低产量的基础上提高制种玉米水分利用效率.据此提出了在拔节至灌浆期充分供水,成熟期减小供水、保持适度的水分亏缺的制种玉米节水高产水分调控模式.

       

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