Floral Biology of Aquilaria sinensis (Lour.) Spreng
2024
Bin Wang | Guangyao Ma | Suxian Lin | Xin He | Bo Chen | Haoling Li | Liangming Huang | Yun Yang | Jianhe Wei
Aquilaria sinensis (Lour.) Spreng is a known medicinal plant producing agarwood. To date, studies on the floral biology of A. sinensis have been limited. In this study, the floral micro- and ultra-structures, pollen viability, stigma receptivity, and artificial pollination of A. sinensis were investigated. The results show that the flower&rsquo:s development can be divided into five stages, including the flower bud differentiation stage (2&ndash:7 d), the flower bud stage (7&ndash:13 d), the flowering stage (14 d), the pollination stage (14&ndash:15 d), and the fruiting stage (15&ndash:25 d). The floral organs mainly include: 4&ndash:6 split calyces, 10 petals, 10 stamens, and 1 pistil. The anther is oblong, with four pollen sacs the pollen is round, with maximum viability 6 h after flowering: and stigma receptivity is at its best 6 h before flowering. Artificial pollination is successful in the field. These findings will provide useful information for producing and breeding A. sinensis.
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