Kết quả nghiên cứu một số đặc điểm thực vật học của nguồn gen cây thuốc giác đế sài gòn

Abstract

Goniothalamus gabriacianus (Baill.) Ast, of the Annonaceae family, is a mid-sized shrub, growing under the forest canopy. They have high self- pollinating ability. They grow on acrisols at the altitude of 20 - 800m above sea level. The flowering season are from December to May; ripening from June to November. 3 - 4 year-old tap roots become tuberous roots that can be harvested. Tuberous roots are 5 - 7cm long and 1.2 - 1.5cm in diameter. The epidermal cells of the stems and leaves, protected by cuticles are long, narrow and thick-walled. The xylem is relatively large and the dermis is in bundles of 10 - 15 cells.