Photosynthetic performance of Ginkgo biloba L. grown under high and low irradiance

Title:

Photosynthetic performance of Ginkgo biloba L. grown under high and low irradiance

Creator:

Pandey, S., Kumar, S., and Nagar, P. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:37ff20d9-a7b0-458f-81cf-97fe972d2f70
uuid:37ff20d9-a7b0-458f-81cf-97fe972d2f70
issn:0300-3604
doi:10.1023/B:PHOT.0000027514.56808.35

Subject:

chlorophyll a fluorescence, leaf anatomy, leaf mass, net photosynthetic rate, photoinhibition, solar irradiance, stomatal conductance, and transpiration rate

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Diurnal variation in net photosynthetic rate (PN) of three-year-old plants of Ginkgo biloba was studied under open, O (receiving full sunlight), net-shade, NS (40 % of photosynthetically active radiation, PAR), or greenhouse, G (25 % PAR) conditions. In all three conditions, PN was higher in morning along with stomatal conductance (gs), and intercellular CO2 concentration (Ci), while leaf temperature and vapour pressure deficit were low. The O-plants exhibited a typical decline in PN during midday, which was not observed in NS-plants. This indicated a possible photoinhibition in O-plants as the ratio of variable to maximum fluorescence (Fv/Fm) and photosystem 2 (PS2) yield (ΦPS2) values were higher in the NS- and G-plants. On the contrary, stomatal density and index, chlorophyll a/b ratio, leaf thickness, and density of mesophyll cells were greater in O-plants. Further, higher PN throughout the day along with higher relative growth rate under NS as compared to O and G suggested the better efficiency of Ginkgo plants under NS conditions. Therefore, this plant species could be grown at 40 % irradiance to meet the ever-increasing demand of leaf and also to increase its export potential. and S. Pandey, S. Kumar, P. K. Nagar.

Language:

Multiple languages

Rights:

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

Coverage:

505-511

Source:

Photosynthetica | 2003 Volume:41 | Number:4

Harvested from:

CDK

Metadata only:

false