Irradiance influences tea leaf (Camellia sinensis L.) photosynthesis and transpiration

Title:

Irradiance influences tea leaf (Camellia sinensis L.) photosynthesis and transpiration

Creator:

Barman, T. S., Baruah, U., and Saikia, J. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:fe674f7a-03c1-4162-b35c-b9f79cb5a902
uuid:fe674f7a-03c1-4162-b35c-b9f79cb5a902
issn:0300-3604
doi:10.1007/s11099-008-0104-y

Subject:

leaf temperature and photosynthetic photon flux density

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Rates of net photosynthesis (PN) and transpiration (E), and leaf temperature (TL) of maintenance leaves of tea under plucking were affected by photosynthetic photon flux densities (PPFD) of 200-2 200 µmol m-2 s-1. PN gradually increased with the increase of PPFD from 200 to 1 200 µmol m-2 s-1 and thereafter sharply declined. Maximum PN was 13.95 µmol m-2 s-1 at 1 200 µmol m-2 s-1 PPFD. There was no significant variation of PN among PPFD at 1 400-1 800 µmol m-2 s-1. Significant drop of PN occurred at 2 000 µmol m-2 s-1. PPFD at 2 200 µmol m-2 s-1 reduced photosynthesis to 6.92 µmol m-2 s-1. PPFD had a strong correlation with TL and E. Both TL and E linearly increased from 200 to 2 200 µmol m-2 s-1 PPFD. TL and E were highly correlated. The optimum TL for maximum PN was 26.0 °C after which PN declined significantly. E had a positive correlation with PN. and T. S. Barman, U. Baruah, J. K. Saikia.

Language:

Multiple languages

Rights:

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

Coverage:

618-621

Source:

Photosynthetica | 2008 Volume:46 | Number:4

Harvested from:

CDK

Metadata only:

false