NGHIÊN CỨU ĐẶC ĐIỂM NÔNG SINH HỌC CỦA TẬP ĐOÀN HOA LAN HUỆ VIỆT NAM (Hippeastrum Herb.)

This study was conducted to observe and evaluate the agro-biological characters of 52 Hippeastrum accessions collected from 24 provinces in Vietnam. The results showed the diversity on some main characteristics of the bulbs, leaf, flower and inflorescence. The floral type of all the accession are single while the flower colour, size and shape are much different. There were 11 hippeastrum groups dividing based on the main flower colour as Do-soc-trang, Trang-soc-do, Trang, Do-nhung, Do-gao, Hong-dao, Do-dai, Cam-soc, Do-cam-dai, Cam-dai and Lan-hue-mang. 10 out of 11 groups bloom in March and April while Lan-hue-mang group showed flower from July to October. The scape height (from 20cm to more than 50cm) associated with large flower diameter (9-16cm) and long flowering life (9-19 days) are important indicators to show that Hippeastrum plants are suitable for multiple usage (potted, bedding or cut flowers). The characteristics of anther colour, filament length and style length indicated that Hippeastrum are suitable for cross-pollination. This research results are valuable contribution on Hippeastrum database for upcoming studies in Vietnam.