Partial shade improved the photosynthetic capacity and polysaccharide accumulation of the medicinal plant Bletilla ochracea Schltr.

Title:

Partial shade improved the photosynthetic capacity and polysaccharide accumulation of the medicinal plant Bletilla ochracea Schltr.

Creator:

Yu, X. F., Ming, X. Y., Xiong, M., Zhang, C., Yue, L. J., Yang, L., and Fan, C. Y.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:8fc0ca45-e411-47c6-8695-0e9bed1f2615
uuid:8fc0ca45-e411-47c6-8695-0e9bed1f2615
doi:10.32615/ps.2021.064

Subject:

Bletilla ochracea Schltr., chlorophyll fluorescence, photosynthesis, and shade

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

To study the light intensity suitable for Bletilla ochracea Schltr., morphology, photosynthetic parameters, and polysaccharide content of seedlings were evaluated under different light intensities. All shade treatments promoted plant growth and net photosynthetic rate while having no significant effect on transpiration rate. The maximum photochemical efficiency and potential photochemical efficiency reached the lowest values under full sunlight. The electron transport rate and photochemical quenching under shade were significantly higher than those under full light, while nonphotochemical quenching was the highest under full light. This indicated that the shade alleviated photoinhibition in summer and improved the utilization of light. B. ochracea could adapt to different light intensities, enhancing photosynthetic efficiency under low light by improving the electron transport and the degree of opened PSⅡ reaction centers, and adapting to high light by increasing heat dissipation. Plant growth, photosynthesis, and polysaccharide accumulation of B. ochracea greatly increased under 76.4% shade.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

168-178

Source:

Photosynthetica | 2022 Volume:60 | Number:2

Harvested from:

CDK

Metadata only:

false