Carbon dioxide assimilation, transpiration, and leaf conductance of bean (Phaseolus vulgaris L.) under blue and red radiation

Title:

Carbon dioxide assimilation, transpiration, and leaf conductance of bean (Phaseolus vulgaris L.) under blue and red radiation

Creator:

Maleszewski, S., Niemyjska, E., and Kozłowska-Szerenos, B.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f4f3eb36-7099-412d-bee8-5e80fd72e836
uuid:f4f3eb36-7099-412d-bee8-5e80fd72e836
issn:0300-3604
doi:10.1023/A:1013739428056

Subject:

intercellular CO2 and H2O vapour concentrations, leaf temperature, photosynthesis, stomata responses, and water use effeciency

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

In bean (Phaseolus vulgaris L.) seedlings well supplied with water, rates of transpiration (E) and CO2 assimilation (PN) of the primary leaves were measured under blue (BR) or red (RR) irradiance of 150 µmol(photon) m-2 s-1. The leaf conductance to H2O vapour transfer (gH2O), as well as the intercellular concentrations of H2O vapour (ei) and of CO2 (Ci) were calculated. Under BR, gH2O was significantly greater, but PN was lower, and E similar as compared with corresponding values found under RR. The increase of stomata aperture under BR was evident although Ci was higher and ei was lower than under RR. Results agree with the suggestion that BR directly activates guard cell metabolism and in well watered plants determines mainly the stomata aperture. and S. Maleszewski, E. Niemyjska, B. Kozłowska-Szerenos.

Language:

Multiple languages

Rights:

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

Coverage:

233-237

Source:

Photosynthetica | 2001 Volume:39 | Number:2

Harvested from:

CDK

Metadata only:

false