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首页> 外文期刊>Horticultural Science >Sequential abiotic stress applied to juvenile eggplant modifies the seedlings parameters, plant ontogeny and yield
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Sequential abiotic stress applied to juvenile eggplant modifies the seedlings parameters, plant ontogeny and yield

机译：对幼年茄子施加顺序的非生物胁迫可改变幼苗参数，植物个体发育和产量

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摘要

The main goal of this study was to evaluate eggplant (Solanum melongena L.) susceptibility to a sequence of stress factors during plant ontogeny based on seedling morphological, biochemical and physiological parameters and the subsequent assessment of yield characteristics. After germination, seedlings at the radical stage were exposed to chilling, heat, osmotic or oxidative stress. Four weeks after development in standard conditions in a greenhouse, the seedlings were again subjected to chilling stress in a growth chamber. A non-chilled Control was implemented. Then, the yield and physiological characteristics were assessed after field cultivation. Generally, stress application after germination resulted in better plant acclimation to chilling at the 4-week-old seedling phase, evaluated on the basis of photosynthetically active pigment contents, chlorophyll fluorescence and some morphological characteristics. The comparable time to reach successive phenological stages by stressed and Control plants in the field suggests that stress pretreatment does not retard eggplant development. These results also confirm the thesis that stress memory can be induced in eggplant by stressor application during the early stages of development.
机译：这项研究的主要目的是根据幼苗的形态，生化和生理参数以及随后对产量特征的评估，评估茄子（Solanum melongena L.）在植物个体发育过程中对一系列胁迫因素的敏感性。发芽后，处于自由基阶段的幼苗暴露于寒冷，高温，渗透或氧化胁迫下。在温室中在标准条件下发育四周后，将幼苗再次置于生长室中进行低温胁迫。实施了非冷藏控制。然后，在田间栽培后评估产量和生理特性。通常，根据光合作用活性色素含量，叶绿素荧光和某些形态学特征评估，发芽后施加压力可使植物在4周龄的幼苗期更好地适应寒冷。在田间，胁迫植物和对照植物达到相继物候阶段的可比时间表明，胁迫预处理不会阻碍茄子的发育。这些结果也证实了这样的论点，即在发育的早期阶段，通过施加压力可以在茄子中诱导胁迫记忆。

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