INVESTIGATING THE INFLUENCE OF BRASSINOLIDE ON THE GROWTH AND DEVELOPMENT OF PEANUT IN TRA VINH PROVINCE, VIETNAM

Brassinolide is a growth regulator contributing to plant growth and development, flowering and fruiting capacity, resulting in high yields for crops such as soybean, rice, strawberry, and grapes. This research project investigated the effect of Brassinolide on the growth and development of peanuts grown in sandy soil in Tra Vinh Province. The experiment utilized a completely randomized block design with two factors: four Brassinolide rates (0 ppm, 0.05 ppm, 0.10 ppm, and 0.15 ppm) and four injection points (15, 35, 50 days after sowing, and 15+35+50 days after sowing). The results indicated that a concentration of 0.15 ppm Brassinolide, combined with spraying three times on days 15+35+50 days after sowing, achieved higher efficiency in height, number of buds, number of flowers/tree, and number of fruits/plants, compared to the trial without Brassinolide.