Effect of Foliar Apllication of Glutathione on Viability and Vigor Seeds of Sorghum Effected by Heat Stress

Abstract

Two experiments were carried out, field and laboratory experiments. The experimental field of the Department of Field Crops, University of Anbar - located in Anbar Governorate, the city of Ramadi, during the spring period of 2022. The experiment was carried by spraying the plants with four concentrations of glutathione (0 distilled water, 50, 100 and 150 mg L−1 glutathione). The experiment was applied as one-way according to the randomized complete block design (RCBD), with three replicates, with the aim to improve the quality of seeds and reflect their quality in laboratory tests of the seed viability and seed vigor under the influence of temperature. The laboratory experiment was carried out in the germination laboratory of the Department of Seed Examination and Certification / Ministry of Agriculture - Baghdad Governorate, in order to study the effect of glutathione spraying on the viability and seed vigor as affected by heat stress of sorghum crop. The results showed that the concentration of 50 mg L−1 outperformed in number of days to flowering, with the least number of days of (84.33 days), compared to other concentrations treatment. The concentration of 100 mg L−1 was superior in the leaf area with the highest rate of 595.8 cm2, while the concentration of 150 mg L−1 outperformed in number of seeds plant−1, and total grain yield achieving the highest mean of 2691 seeds plant−1 and 5.87 tons ha−1 respectively.