Moringa Leaves Extract and Zeatin for Maximizing Yield and Quality Traits of Two Flax Cultivars

摘要

Background and Objective: Flax is an ancient crop grown as an oil, fibre and dual-purpose crop for economic purposes. Thus, is it important to increase the flax productivity of flax cultivars under sandy conditions by using different natural compounds such as moringa leaves extract and Zeatin with different concentrations. Materials and Methods: In split-plot design, a field experiment was carried out to assess the physiological role of exogenous application of moringa leaves extract at rates of (0, 10, 20 and 30%) and Zeatin at rates of (0, 100, 200 and 300 mg LG1 ) on growth, some physiological indices, yield and quality traits of two flax (Sakha-1 and Line-4) varieties grown under sandy soils conditions at Researches and Production Station of National Research Centre, Al Nubaria district El-Behira Governorate-Egypt, in two winter seasons. Results: Results indicated that line-4 variety surpassed Sakha-1 variety in root dry weight, indole acetic acid content (IAA), plant height, technical stem length, fruiting zone length, seed and biological yields/plant seed, straw, biological and oil yields per feddan, seed oil and carbohydrates (%). Regarding moringa leaves extract application at the rate of 20% surpassed all other treatments in plant fresh and dry weight, root length, root fresh and dry weight and seed yield per plant, 1000 seeds weight and oil (%). Meanwhile, Zeatin treatment with 200 mg LG1 surpassed the other used treatments in increasing photosynthetic pigments, IAA, yield and its components as well as carbohydrates (%) in the yielded seeds. Conclusion: Furthermore, moringa leaves extract 20% was more effective than 10 and 30% as it caused the highest increases in different studied growth, biochemical and yield parameters in the two tested varieties. Zeatin exogenous treatment with 200 mg LG1 was more effective than other treatments on the two tested varieties.