Response of some Varieties of Beans Phaseolus Vulgaris L. in the Plastic House and Spraying with Zinc Oxide Nanoparticles in Vegetative Growth Qualities

Abstract

Abstract This experiment was conducted in the greenhouse unit of the Department of Horticulture and Garden Engineering in the agricultural season 2023-2022 to study the response of four varieties of beans to spraying with zinc oxide nanoparticles at a concentration of 0, 100, 150 mg liter-1 and its effect on vegetative growth qualities. The results showed the superiority of the variety Seychelles over all varieties in the characteristics of plant height, the total leaf area of the plant and the content of leaves of chlorophyll a and b, the superiority of the variety Gia Bean in the characteristic of the number of leaves and the number of nodes and the superiority of the two varieties Sonesta and Gia Bean in the percentage of dry matter for vegetative growth. As for spraying with zinc oxide nanoparticles, spraying at a concentration of 150 mg l-1 is superior in the characteristics of plant height, number of leaves, total leaf area of the plant, number of nodes, chlorophyll A and chlorophyll B for bean plants. As for bilateral overlap, the variety Seychelles and spraying at a concentration of 100 mg L-1 were superior in the characteristics of plant height, total leafy area of the plant and chlorophyll b, The bilateral overlap between the variety Gia Bean and spraying at a concentration of 100 mg l-1 was superior in the qualities of the number of leaves and the number of nodes, The bilateral interaction treatment between the variety Gia Bean and spraying at a concentration of 50 mg L-1 excelled in the percentage of dry matter for vegetative growth, As for the content of the leaves of chlorophyll A, it exceeded the treatment of bilateral overlap between the seychelles and spraying with a concentration of 50 mg-1.