Biopendix: Jurnal Biologi, Pendidikan dan Terapan
Vol 13 No 2 (2026): Biopendix: Jurnal Biologi, Pendidikan & Terapan

The Effect of Salicylic Acid Antioxidant and Watering Intervals on Mitigating Drought Stress During the Vegetative Stage of Soybean ( Glycine max L. Merr.)

Abil Febriandi (Department of Biology Education, Faculty of Science and Technology, State Islamic University of North Sumatra, Medan, Indonesia)
Rahmadina Rahmadina (Department of Biology Education, Faculty of Science and Technology, State Islamic University of North Sumatra, Medan, Indonesia)
Khairunnisa Khairunnisa (Department of Biology Education, Faculty of Science and Technology, State Islamic University of North Sumatra, Medan, Indonesia)



Article Info

Publish Date
03 Aug 2026

Abstract

Drought is one of thr abiotic factors that can hinder plant growth and productivity. The use of salicylic acid as an antioxidant is expected to enhance plant tolerance to water stress, while adjusting watering intervals serves as an effective water management strategy. This study aims to investigate the effect of salicylic acid application and watering intervals on the drought resistance of soybean plants (Glycine max L. Merr.) during the vegetative phase. This research employed an experimental method using a Randomize Complete Block Design (RCBD) with two treatment factors. The first factor was salicylic acid concentration at three levels: S0 (0 mM), S1 (1 mM) and S2 (2 mM). The second factor was watering interval with four levels: H0 (0-day interval), H1 (1-day interval), H2 (3-day interval) and H3 (5-day interval). Observed parameters included total leaf area, stomatal density, root dry weight, root volume, and canopy dry weight. The result showed that salylic acid concentration 1 mM treatment had a significant effect on total leaf area, stomatal density, root dry weight and canopy dry weight. Watering 5 day interval treatments significantly affected total leaf area and root volume. Meanwhile, the interaction between salicylic acid and watering treatment did not have a significant effect on any of the observed parameters

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Journal Info

Abbrev

biopendix

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Education

Description

Jurnal Biopendix publishes peer-reviewed research of special importance and broad interest in any area of biology education by research and or result of conceptual studies. ...