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Effects of hydrogen peroxide application on agronomic traits of rice (Oryza sativa L.) under drought stress

Author

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  • Weeraphorn Jira-anunkul

    (Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand)

  • Wattana Pattanagul

Abstract

Drought stress is a major environmental factor limiting crop growth and productivity. Hydrogen peroxide (H2O2) plays an essential role during stress response by acting as a signal molecule that activates multiple stress tolerance mechanisms. In this study, the effects of H2O2 on agronomic traits were studied in rice (Oryza sativa L.) cv. Khao Dawk Mali 105 (KDML 105) was subjected to drought stress. H2O2 was applied by either seed priming or foliar application method with a concentration of 1, 5, and 15 mmol/L. The results showed that both seed priming and foliar application with H2O2 improved some yield components. The tiller numbers, number of panicles, number of filled grains, filled grain weight, and harvest index were improved approximately 1.13, 1.04, 1.23, 1.21, and 1.1 times compared to the untreated plants. Foliar application, however, helps the plant by reducing yield loss as indicated by a 0.5-time reduction in the number of unfilled grain and lower unfilled grain weight. It was suggested that 5 mmol/L H2O2 was the most effective concentration to alleviate the effect of drought stress during the reproductive stage in rice.

Suggested Citation

  • Weeraphorn Jira-anunkul & Wattana Pattanagul, 2021. "Effects of hydrogen peroxide application on agronomic traits of rice (Oryza sativa L.) under drought stress," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(4), pages 221-229.
    • Handle: RePEc:caa:jnlpse:v:67:y:2021:i:4:id:628-2020-pse
    DOI: 10.17221/628/2020-PSE
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    References listed on IDEAS

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    1. Abdullah Al Mamun Sohag & Md. Tahjib-Ul-Arif & Marián Brestič & Sonya Afrin & Md. Arif Sakil & Md. Tahmeed Hossain & Mohammad Anowar Hossain & Md. Afzal Hossain, 2020. "Exogenous salicylic acid and hydrogen peroxide attenuate drought stress in rice," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(1), pages 7-13.
    2. Jinmeng Zhang & Shiqiao Zhang & Min Cheng & Hong Jiang & Xiuying Zhang & Changhui Peng & Xuehe Lu & Minxia Zhang & Jiaxin Jin, 2018. "Effect of Drought on Agronomic Traits of Rice and Wheat: A Meta-Analysis," IJERPH, MDPI, vol. 15(5), pages 1-14, April.
    3. Jongdee, Boonrat & Pantuwan, Grienggrai & Fukai, Shu & Fischer, Ken, 2006. "Improving drought tolerance in rainfed lowland rice: An example from Thailand," Agricultural Water Management, Elsevier, vol. 80(1-3), pages 225-240, February.
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