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通过盆栽试验,研究苗期-拔节前期、拔节后期-孕穗期和孕穗期-开花期不同亏水水平即重度缺水(35%～45%θf,θf为田间持水量)、中度缺水(45%～55%θf)、轻度缺水(55%～65%θf)和正常灌水(CK,65%～80%θf)以及拔节后期-孕穗期和孕穗期-开花期不同亏水水平组合对糯玉米产量、耗水量和水分利用效率(WUE)的影响。结果表明,与CK处理相比,苗期-拔节前期各亏水处理,拔节后期-孕穗期、孕穗期-开花期轻度、中度亏水处理耗水量减少10.8%～19.8%,干子粒产量降低不显著,对WUE无显著影响;拔节前期-孕穗期中度和轻度亏水组合与孕穗期-开花期中度或轻度亏水组合耗水量减少15.8%～22.8%,总干物质量显著降低,产量降低不显著,对WUE无显著影响。
Pot experiments were carried out to study the effects of different water deficit levels, ie, severe water deficit (35% -45% θf, θf = field capacity), moderate water deficit 45% ~ 55% θf), mild water deficit (55% ~ 65% θf) and normal watering (CK, 65% ~ 80% θf) and post-jointing-booting stage and booting stage- Effect on waxy corn yield, water consumption and water use efficiency (WUE). The results showed that compared with CK treatment, the water consumption of light and moderate water deficit treatment decreased by 10.8% -19.8% at seedling stage-jointing stage before water loss treatment, after jointing-booting stage, booting stage-flowering stage, The water consumption of moderate or mild water deficit combination at the early jointing-booting stage and that of the booting stage-flowering stage decreased by 15.8% -22.8%, the total dry matter weight decreased significantly, No significant reduction in yield, no significant impact on WUE.