Radiation use efficiency, chlorophyll fluorescence, and reflectance indices associated with ontogenic changes in water-limited Chenopodium quinoa leaves

Title:

Radiation use efficiency, chlorophyll fluorescence, and reflectance indices associated with ontogenic changes in water-limited Chenopodium quinoa leaves

Creator:

Winkel, T., Méthy, M., and Thénot, F.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e193be9d-530e-4a57-bebc-cf8337d8787e
uuid:e193be9d-530e-4a57-bebc-cf8337d8787e
issn:0300-3604
doi:10.1023/A:1021345724248

Subject:

leaf water potential, net photosynthetic rate, PRI, quinoa, and water stress

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Net photosynthetic rate, radiation use efficiency, chlorophyll (Chl) fluorescence, photochemical reflectance index (PRI), and leaf water potential were measured during a 25-d period of progressive water deficit in quinoa plants grown in a glasshouse in order to examine effects of water stress and ontogeny. All physiological parameters except Fv/Fm were sensitive to water stress. Ontogenic variations did not exist in Fv/Fm and leaf water potential, and were moderate to high in the other parameters. The complete recovery of photosynthetic parameters after re-irrigation was related with the stability in Fv/Fm. PRI showed significant correlation with predawn leaf water potential, Fm', and midday Fv/Fm. Thus PRI and Chl fluorescence may help in assessing physiological changes in quinoa plants across different developmental stages and water status. and T. Winkel, M. Méthy, F. Thénot.

Language:

Multiple languages

Rights:

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

Coverage:

227-232

Source:

Photosynthetica | 2002 Volume:40 | Number:2

Harvested from:

CDK

Metadata only:

false