Reproductive Biology of Colquhounia coccinea
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    Abstract:

    Colquhounia coccinea shows a floral syndrome typical of bird pollination, and therefore has the potential to be developed as a bird-attracting landscape plant. Taking the C.?coccinea population in natural and artificial habitat as the research object, the flowering phenology, flower traits, flower visitor and flower visiting behavior, breeding system, and seed germination traits are studied through observation and experiment, so as to clarify the reproductive traits of the C.?coccinea and the attraction potential of different flower visitors. The results showed that the flowering season of C.?coccinea lasted for about three months, the single flowering period was 9.6±0.6 d; nectar was relatively abundant and dilute, with short corolla tubes and hexose-dominated nectar sugar composition; flower visitors were mainly Apis cerana and a variety of nectarivorous birds, especially short-billd generalized birds, and C.?coccinea still attracted bird visitors in artificial habitats; it is completely self-compatibile, but pollinators were necessary for pollination, and pollen limitation did not exist; there was no significant difference in seed germination ability among the pollination treatments; Apis cerana can pollinate it effectively, and the pollination effectiveness of birds needs to be further verified. In summary, C.?coccinea shows a long display season and, has an apparent ability to attract birds to visit the flowers. We can produce large numbers of seedlings via sexual reproduction.

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HUANG Meiying, DUAN Yunbo, LIANG Qiongyue, HUANG Shixun, CHEN Zhe, LIU Changqiu. Reproductive Biology of Colquhounia coccinea[J]. Acta Botanica Boreali-Occidentalia Sinica,2024,44(1):127-133

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History
  • Received:August 06,2023
  • Revised:October 20,2023
  • Adopted:October 30,2023
  • Online: December 04,2023
  • Published:
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