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首页> 外文期刊>Crop Research >Effects of drought and zinc application on leaves and physiological characteristics of Aloe vera
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Effects of drought and zinc application on leaves and physiological characteristics of Aloe vera

机译：干旱和锌肥对芦荟叶片和生理特性的影响

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摘要

Aloe vera is one of the best medicine plants in the world. It requires limited irrigation depending on the capacity of the soil to retain humidity. Drought is one of the key reasons for declining production of agriculture. In this study, effect of irrigation levels and zinc sulfate on Aloe plants was studied. The irrigation treatments were : 30, 60 and 90% water depletion. Foliar zinc application includedtreatments of control, 1.5 and 3 g/1 during experiment.Results revealed that the irrigation levels and zinc sulfate affected the most morphological and chemical characteristics in A. vera. There were no significant differences between 30 and 60% treatments. Water deficit (90% WD) decreased the plant height, external leaf length, internal leaf length, leaf thickness, leaf fresh weight, leaf dry weight, chlorophyll a, chlorophyll b and total chlorophyll. Also amino acid proline and chloride ion increased by severe drought. Application of Zn enhanced the external leaf length, internal leaf length, amount of chlorophyll a, total chlorophyll and amino acid proline. Therefore, 60% water depletion was recommended for using water and obtaining the plant suitable growth. Also foliar zinc treatment had the role of plant resistance by increasing proline to drought stress.
机译：芦荟是世界上最好的药用植物之一。根据土壤保持湿度的能力，需要进行有限的灌溉。干旱是农业产量下降的主要原因之一。在这项研究中，研究了灌溉水平和硫酸锌对芦荟植物的影响。灌溉处理为：30％，60％和90％的水耗竭。叶面喷施锌包括对照，1.5 g和3 g / 1的处理。结果表明，灌溉水平和硫酸锌影响了A. vera的大部分形态和化学特性。 30％和60％的治疗之间无显着差异。水分亏缺（WD含量为90％）降低了株高，外部叶片长度，内部叶片长度，叶片厚度，叶片鲜重，叶片干重，叶绿素a，叶绿素b和总叶绿素。严重干旱还会增加氨基酸脯氨酸和氯离子的含量。锌的施用增加了外部叶片的长度，内部叶片的长度，叶绿素a的含量，总叶绿素和氨基酸脯氨酸的含量。因此，建议消耗60％的水分以用于用水并获得植物合适的生长。叶面锌处理还通过增加脯氨酸对干旱胁迫的作用而具有植物抗性的作用。

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