PJB-2024-493
Synergistic effects of biochar and glutathione foliar application on wheat plant growth, photosynthetic pigments, grain yield, and its components under water deficit conditions
Nurah M. Alzamel
Abstract
Water stress, a severe abiotic stress, is currently posing a significant threat to wheat production globally. So, two experiments were conducted at the Experimental Farm of the College of Sciences and Humanities, Shaqra University, Al-Quwayiyah Governorate during the autumn seasons of 2021/2022 and 2022/2023 to explore the synergistic effects of biochar and glutathione foliar application on wheat plant growth, photosynthetic pigments, grain yield, and its components under water deficit conditions. These trials were performed in both seasons in a randomized complete block design using a split-plot arrangement, with three replications for each water regime treatment. Biochar application rates were applied in the main plots, whereas sub-plots used glutathione foliar application. Significant adverse consequences on plant growth, photosynthetic pigments, grain yield, and its components were observed as a result of a water deficit in both seasons. The foliar application of biochar and glutathione significantly mitigated the adverse consequence of water stress on plant growth, photosynthetic pigments, grain yield, and its components. Plant growth, photosynthetic pigments, grain yield, and components traits were significantly impacted by combination of water regimes with biochar application and glutathione application, with the most favorable triple interaction observed via increasing biochar application to 20 tons per hectare and glutathione application was up to 300 mg/l under various watered regimes, particularly under well-watered conditions. Accordingly, the application of biochar at a rate of 20 tons per hectare and glutathione at a rate of 300 mg/l was found to be a sustainable method for enhancing wheat production under water stress conditions.
To Cite this article:
Alzamel, N.M. 2025. Synergistic effects of biochar and glutathione foliar application on wheat plant growth, photosynthetic pigments, grain yield, and its components under water deficit conditions. Pak. J. Bot., 57(4): DOI: http://dx.doi.org/10.30848/PJB2025-4(38)
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