Yang F.,Hainan University |
Yang F.,Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine |
Li R.,Peking Union Medical College |
Li R.,Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine |
And 4 more authors.
Zhongguo Zhongyao Zazhi
Objective: To investigate the photosynthetic characteristics of wildlife tending Alpinia oxyphyIla, and provide a theoretical basis for choosing wildlife tending environment and cultivation management. Method: The response parameters of the net photosynthetic rate to light intensity, CO2 concentration and photosynthetic characteristics were measured by Li-6400 portable photosynthesis in blossom bud forming stages under different treated conditions. Result: The maximum net photosynthetic rate (Pmax), daily average photosynthetic rate (Pn), apparent quantum efficiency (AQY), apparent carboxylation efficiency (CE), light using efficiency (LUE), and water use efficiency (WUE) were optimal in the wild tending treatment at the light transmission rate of 17.4%-24.1%, beyond the light transmission rate, the photosynthetic capacity utilization of A. oxyphyIla would not have a significant increase or be inhibited. The light compensation point (LCP) and light saturation point (LSP) of A. OxyphyIla improved with light intensity enhancing. Wildlife tending could enhance the scope of A. oxyphyIla to CO2 adaptation. Conclusion: A. oxyphyIla as sciophytes, and the optimum light transmission rate for wild tending and cultivating was at 17.4%-24.1%. Source
Wang D.-L.,Peking Union Medical College |
Wang D.-L.,Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine |
Qi Y.-D.,Peking Union Medical College |
Qi Y.-D.,Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine |
And 4 more authors.
American Fern Journal
In the present study, we investigated a natural population of H. serrata in the Bawangling Nature Reserve of Hainan Province, South China. In field sampling, we examined the number of adult plants, gemmlings and sporelings as well as the gemma number of plants at different ages. A significant difference was observed between the numbers of gemmlings and sporelings. Most seedlings derived from gemmae, which critically influenced the population regeneration. The reproductive ability of gemmae became stronger from the 4th year of gemma growth. In the cultivation test, gemmae were planted in three different soil media, i.e., habitat soil, sand and humus. No significant difference was found in the gemmation rate among the three media, but the survival rate in sand was significantly lower than in the other two media. We also investigated the morphology of the gemma and gemmling growth pattern of H. serrata. The results may reveal the contributing role of gemmae in reproductive strategies, and be helpful to the resource protection and cultivation of H. serrata. © 2011, Americian Fern Society. Source