Effect of Exogenous Abscisic Acid (ABA), a Potential Growth Regulator on Physiological Response to Chilling Stress of Adzuki Bean (Vigna angularis) at Flowering Stage

文献类型： 外文期刊

第一作者： Xiang Hong-Tao

作者： Xiang Hong-Tao;Xie Hong-Chang;Wang De-Ming;Xiang Hong-Tao;Li Wan;Liu Jia;He Ning;Wang Xue-Yang;Li Bo;Li Wan;Li Bo

作者机构：

关键词： Adzuki bean; Anti-adversity defense system; Chilling; Exogenous ABA; Yield.

期刊名称：LEGUME RESEARCH （ 影响因子：0.8； 五年影响因子：0.8 ）

ISSN： 0250-5371

年卷期： 2023 年 46 卷 12 期

页码：

收录情况： SCI

摘要： Background: Low temperatures during flowering severely affect crop growth and yield. Methods: This experiment was conducted under potted conditions with LXD 4 and TJH as test materials and pre-sprayed with exogenous ABA at a concentration of 20 mg center dot L-1 at flowering stage, respectively and then with an average of 15.C condition for 5 days. Result: The results showed that foliar spraying exogenous ABA effectively inhibited the increase of MDA content and relatively significantly improved the photosynthetic parameters such as Gs and Tr and alleviated the loss of yield factors caused by chilling stress. Compared with spraying water, spraying exogenous ABA can significantly increase the yield per pot of LXD 4 by 6.72.17.77% and TJH by 6.41(+/-)37.04% under low temperature conditions. In summary, foliar spraying exogenous ABA ameliorated the effects of chilling stress on the physiological characteristics of adzuki bean leaves and improved yield as a result of improved antioxidant defense mechanisms which impeded lipid peroxidation. Thus, we conclude that foliar spraying exogenous ABA could decelerate the damages caused by chilling stress to some extent.

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