玉米节约灌在干旱地区的监管效应
Yuhao Zhao1, Xin Li1, Meiwei Lin1
1School of Agricultural Engineering, Jiangsu University, Zhenjiang, China.
Frontiers in plant science
|September 15, 2025
概括
适度缺水灌 (W1) 提高了玉米产量,用10%的水减少了8%,提高了玉米核的质量,并激活了抗旱机制. 严重的缺水 (W4) 损害了玉米的生长和产量.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 适应气候变化 适应气候变化
背景情况:
- 气候变化引起的干旱加剧了干旱压力,威胁到农业的可持续性和水源安全.
- 缺水是全球农业生产面临的重大挑战,需要采取适应性战略.
研究的目的:
- 在干旱压力下研究玉米对不同灌水平的生理和生化反应.
- 评估受管制缺水灌对玉米产量形成和玉米核质量的影响.
- 确定最佳的灌策略,以提高干旱适应能力和农业可持续性.
主要方法:
- 在新疆华兴农场建立了五个灌梯度 (100%至60%的全部需求).
- 使用多维TOPSIS-重法来评估灌处理的有效性.
- 分析了生理参数,生物化学标记,产量组件和内核质量属性.
主要成果:
- 适度调节缺水灌 (W1,90%的水) 增加了玉米产量8.0%,同时减少了10%的用水量.
- W1处理增强了核蛋白质 (7.59g/100g) 和粉含量 (68.1g/100g).
- 严重缺水灌 (W4,60%的水) 显著减少了生物质和抑制了产量,未能缓解干旱压力.
结论:
- 适度调节赤字灌 (W1) 是改善干旱条件下的玉米产量和质量的有希望的策略.
- W1激活了一个协同作用的抗干旱机制,涉及透调整和抗氧化防御,减轻细胞损伤.
- 这种灌方法为改善抗压力和提高农业用水效率的生理适应提供了有价值的见解.
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