Response of photosynthesis and conductance to light, CO2, temperature and humidity in tomato plants acclimated to ambient and elevated CO2

Title:

Response of photosynthesis and conductance to light, CO2, temperature and humidity in tomato plants acclimated to ambient and elevated CO2

Creator:

Stanghellini, C. and Bunce, J. A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f3ae87ee-e421-4bb3-bfba-3f207ac57d00
uuid:f3ae87ee-e421-4bb3-bfba-3f207ac57d00
urnnbn:urn:nbn:cz:aba007-000fid

Type:

model:internalpart and TEXT

Format:

print

Description:

In tomato {Lycopersicon esculentum L.) plants, net carbon dioxide exchange rate (P]si) response curves to both irradiance (/) and short-term [CO2] were similar for plants grown at both 350 and 700 cm3(C02) m'^. However, water vapor conductance (gHjo) of plants grown at high [CO2] was less sensitive to short term [CO2] variations, when measured at low vapor pressure difference, and was larger than the conductance of "ambient [CO2]" plants when both were exposed to high [CO2]. Pn and gHjO under high I increased with temperature over the range 18 to 32 °C. of plants grown in both [CO2] treatments increased at most about 25 % from 350 to 700 cm3 m-3 at 18 and 25 °C, and decreased when exposed to 1000 cm^ m'^ at these temperatures. Thus increasing atmospheric [CO2] might not increase P^ by as much as expected and water use of crops might not decrease.

Language:

Multiple languages

Rights:

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

Coverage:

487-497 and 9-19

Source:

Photosynthetica | 1993 Volume:29 | Number:4

Harvested from:

CDK

Metadata only:

false