Glutathione Stimulates Growth and Productivity of Some Flax Varieties Grown under Sandy Soil

Bakry Ahmed Bakry, Mervat Sh. Sadak, Abd El-Samad Mahmoud Younis and Tamer M. Abd El-Razik

Background and Objective: Linseed is a double purpose plant and propagated as fibre, oil or double purpose plant in different countries. Glutathione is a highly significant and prevailing non-protein thiol produced in plant cells. This investigation was an attempt to evaluate the physiological role of exogenous application of glutathione on growth, some physiological indices and productivity of seven varieties of flax plants grown under sandy soil conditions. Materials and Methods: Two field experiments were carried out at the experimental station of the National Research Centre, in the 2018/2019 and 2019/2020 winter seasons, with split-plot design. Foliar applications of different concentrations of glutathione at rates were 50, 100 and 200 mg L^–1. Results: Data clearly show significant varietal differences among the seven tested flax (Sakha-1, Sakha-2, Sakha-3, Sakha-5, Sakha-6, Giza-11 and Amon) varieties in growth, some biochemical aspects, yield and its components. Results clearly show the superiority of Sakha-5 and Sakha-1 varieties in yield and its components Moreover, results show the enhancing role of glutathione treatments on the growth and yield of the tested flax varieties through improving different physiological aspects Glutathione, 200 mg L^–1 recorded the highest values of general studied parameters. Conclusion: In conclusion, foliar treatments of different flax cultivars with glutathione in different concentrations improved the studied growth, biochemical parameters, yield and quality traits as compared with their corresponding controls of different flax varieties under sandy soil conditions.

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