The objective of this study was to investigate the drought-related adaptation strategies of two quinoa (Chenopodium quinoa Willd.) cultivars grown under controlled conditions. After 34 days of growth, water was withheld until plants were severely wilted, then they were re-watered and left to recover. 20 days later the experiment was reproduced. We analyzed growth, biomass, stomatal density, leaf water status, chlorophyll and malonyldialdehyde (MDA) content. Results showed that under water stress growth, biomass, stomatal density and leaf water status were significantly affected. On the other hand, results showed that water stress in the initial period can significantly increase the tolerance to drought during later phases. The data showed that quinoa drought tolerance may result from its capacity to maintain cell health status. Our findings provide new tracks into the mechanisms of drought tolerance in quinoa plants.

中文翻译：

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两种藜麦（藜麦藜）对干旱胁迫的生理和形态响应

这项研究的目的是调查在受控条件下生长的两种藜麦（Chenopodium quinoa Willd。）品种与干旱相关的适应策略。生长34天后，不浇水，直到植物严重枯萎为止，然后重新浇水并恢复。20天后，再现了实验。我们分析了生长，生物量，气孔密度，叶片水分状况，叶绿素和丙二醛（MDA）含量。结果表明，在水分胁迫下，生物量，气孔密度和叶片水分状况均受到显着影响。另一方面，结果表明，初期的水分胁迫可以显着提高后期的耐旱性。数据表明，藜麦的耐旱性可能来自其维持细胞健康状况的能力。