Received: 11-09-2023 / Accepted: 05-01-2024
Angelica acutiloba Sieb. et Zucc Kitagawa is a valuable medicinal plant for women that is widely used in traditional medicine. This plant was introduced to Vietnam, for growing in cool climates and propagated by seed. Research on flowering and fruiting characteristics of A. acutiloba Kitagawa contributes to developing varieties suitable for Vietnamese conditions. 5 accessions of A. acutiloba Kitagawa were collected in several provinces and planted in Sapa, Lao Cai from 2018 to 2020. The experiment was designed by RCBD with 3 replications. The results showed a flowering rate of 5-10% in the first year after sowing. In the second year, 589-600 days after planting, the flowering rate was about 90-95%. A. acutiloba Kitagawa bloomed in order of branch levels. The time from flowering to seed maturity for all accessions was about 2 months. The VT-ĐQ02 accession, collected in Sapa, had the lowest rate of flowering plants in the first year after sowing, high accumulation of dry matter in stem, leaves, and root, high seeding ability, and 1,000-seed weight reaching 4.1g. Individual and actual seed yields were 64.57 g/plant and 129.14 kg/ha, respectively.