Effect selenium on growth, physiology and secondary metabolites of Basil (Ocimum basilicum L.) under water deficit condition

Document Type : Research Paper

Authors

1 university of mohaghegh ardabili

2 Department of Horticultural Sciences, Mohaghegh Ardabili University

3 Department of Agriculture, Payame Noor University, Tehran, Iran

4 Department of Horticultural Sciences, Mohaghegh Ardabili University, Ardabil, Iran.

10.22034/saps.2022.52460.2897

Abstract

This study was conducted to investigate the effect of ascorbic acid on native basil (Ocimum basilicum L.), the native population "Shahre-ray", under drought stress conditions.
Materials and Methods: This experiment was performed in Mohaghegh Ardabili University as a factorial in a randomized complete block design with four replications in the research farm of Horticulture Department of Mohaghegh Ardabili University. Factors tested were drought stress (complete irrigation and cessation of irrigation at the beginning of reproductive growth and cessation of irrigation at 50% of flowering) and selenium foliar application at four concentrations of 0, 0.5, 1 and 2 mM.
Results: The results showed that with increasing drought stress intensity, morphological traits including plant height, number of lateral branches, and biochemical traits including chlorophyll a, chlorophyll b decreased, but the content of leaf proline and essential oil increased. Selenium foliar application improved the growth of basil plants under drought stress conditions. During this study, the use of selenium foliar application created a type of resistance in the basil plant that maintained the plant under stress conditions. With lower levels of selenium, this resistance was higher, but with higher levels, the resistance was lower.
Conclusion: In the current situation and despite the lack of water resources and the abundant need of plants for water, it is possible to use some non-toxic elements that are necessary for plants in the form of foliar application, to make plants resistant to stress conditions.

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JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION

Articles in Press, Accepted Manuscript
Available Online from 22 July 2025

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