Effect of Salicylic Acid on Growth of Cucumber (Cucumis sativusL.) Seedlings under Drought Stress

Received: 16-12-2015

Accepted: 15-08-2016

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Issue: Vol. 14 No. 8 (2016)

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NÔNG HỌC

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Dung, N., Anh, P., & Tuan, T. (2024). Effect of Salicylic Acid on Growth of Cucumber (Cucumis sativusL.) Seedlings under Drought Stress. Vietnam Journal of Agricultural Sciences, 14(8), 1162–1170. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/1443

Effect of Salicylic Acid on Growth of Cucumber (Cucumis sativusL.) Seedlings under Drought Stress

Nguyen Thi Phuong Dung (*) 1 , Pham Tuan Anh 1 , Tran Anh Tuan 1

  • 1 Khoa Nông học, Học viện Nông nghiệp Việt Nam

    • Keywords

    Cucumber, drought, salicylic acid, plant growth, H2O2, MDA, proline

    Abstract


    The objective of the present work was to determine the effect of salicylic acid (SA, 0,25mM and 0.50mM) on growth of cucumber under drought stress imposed by PEG - 6000. Drought markedly reduced growth and development of seedlings, but exogenously applied SA significantly increased plant growth both in drought and non - drought conditions. The increased growth was found for plant height,leaf number, leaf areaandleaf area index, shoot and root dry matter, and chlorophyll aandchlorophyll b content in drought stress applied with 0.25mM SA and 0,50mM SA+ PEG in comparison with those in drought conditions without SA application. In addition, exogenous application of SA lowered the increase inproline contentandMDA, butthe negative effect of drought on H2O2content and Fv/Fm index was notsignificantly ameliorated. Applicaion of0.5 mM SA showed a better effect than 0.25 mM SA.

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