INFLUENCE OF FOLIAR SPRAY BY ALGAE EXTRACT AND AMINO ACID ON BOTANICAL CHARACTERS AND SEED CHEMICAL COMPOSITION OF COMMON BEAN PLANT (PHASEOLUS VULGARIS L.).

Abstract

This study was carried out during two consecutive seasons 2017 and 2018, on common bean plants (Phaseolus vulgaris L. cv. “Giza 6”) at Zawiat Riziyn village, El- Menoufiya Governorate, Egypt. In order to investigate the effect of algae extract (1ml/l), amino acid at the concentrations of (4, 6 and 8 ml/l) and the mixture of 1m/l algae extract with 6 ml/l amino acid as a foliar application on growth, yield, anatomical structure and seeds chemical composition on the common bean plant. Results indicated that spraying the plants with the mixture significantly increased plant height, number of branches/plant, number of compound leaves/plant and plant productivity compared to the untreated plants. Also, this treatment showed promoted remarkable effect on the anatomical structure of the main stem and blade compared to the untreated plants. Generally, the maximum significant increase in any of the studied characters was detected when spraying the plants with the mixture between 1ml/l algae extract with 6 ml/l amino acid. Spraying plants with this mixture also increased the percentages of; nitrogen, phosphor, potassium, calcium and magnesium in seeds, in addition to total crude protein and total carbohydrates percentage. Results of analyzing the amino acids in treated seeds showed high concentration of Glutamic acid; moderate of Leucine, Lysine, Phenylalanine, Tyrosine, Arginine, Alanine and Valine and low of Tryptophan.