在盆栽条件下，采用人工控水法，研究了不同水分处理对夏播玉米抗旱型品种和不抗旱型品种苗期形态、生理指标的影响。结果表明，水分胁迫时间对抗旱型和不抗旱型玉米品种苗期的生理特性有一定的影响。在水分胁迫下，抗旱型玉米品种幼苗期的株高、地下干重、叶面积、叶绿素含量、净光合速率等生理指标均高于不抗旱型品种。

Under pot cultured condition， a pot experiment was conducted to study the effects of different water irrigation on the drought and not drought varieties of summer corn form in the seedling stage， through the determination of physiologicall indexes of height， dry weight， leaf aeras， specific leaf weight， chlorophyll， photosynthesis rate， aimed to determine an appropriate water index for the corn . The results showed that there was different reflection on the water . Under water stress， summer corn drought varieties was a significant advantages， which height， root dry weight， shoot dry weight， specific leaf weight， chlorophyll， photosynthesis rate is higher than not drought varieties .

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