NGHIÊN CỨU ẢNH HƯỞNG CỦA MỘT SỐ CHẤT KÍCH THÍCH RA HOA ĐẬU QUẢ ĐẾN NĂNG SUẤT & CHẤT LƯỢNG HẠT GIỐNG SÂM BÁO (ABELMOSCHUS SAGITTIFOLIUS (KURZ) MERR.)

Abstract

The research was conducted to study the effects of certain flowering and fruiting stimulants on the seed yield of Abelmoschus sagittifolius (Kurz) Merr in Thanh Hoa province. To achieve optimal seed yield and quality for Abelmoschus sagittifolius (Kurz) Merr plants, several technical measures should be implemented, including the use of the growth regulator Thien Nong, which contains 2% Alpha-Naphthalene Acetic Acid, 0.5% Beta-Naphtoxy Acetic Acid, and 0.1% Gibberrellic Acid GA-3: 100g mixed with 200L of water (5g for a 10L sprayer). Mix 0.28kg with 560L of water for 1 hectare. Spray the branches and leaves; apply 10 days before flowering. Do not use within 2 days before harvest. This helps the plants to flower early, produce many flowers, set more fruit; the fruit has good quality, preventing premature fruit drop and ensuring seed firmness. The seed yield can reach 1.78 quintals per hectare.