Responses of soybean leaf photosynthesis to CO2 and drought

Title:

Responses of soybean leaf photosynthesis to CO2 and drought

Creator:

Chen, X.M., Begonia, G.B., Alm, D.M., and Hesketh, J.D.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:670f5ea5-2415-4e4a-b685-e75ced2584b3
uuid:670f5ea5-2415-4e4a-b685-e75ced2584b3
urnnbn:urn:nbn:cz:aba007-000fi3

Type:

model:internalpart and TEXT

Format:

print

Description:

Soybean [Glycine mctx (L.) Merr. cv. Jack] was grown in the field in rain-prolected plots to study effects of drought and atmospheric CO2 enrichnient on leaf gas exchange. Midday depressions in leaf photosynthetic CO2 exchange rates were found in drought-sfressed plants and the diumal changes were inostly stoinatal- regulated, although accumulated drought stress eventually resulted in some non- stomatal limitations. However, seasonal changes in were mostly limited by non- stomatal factors. Water use efficiency was always higher for drought stiessed plants and depended on the severity of stress and associated stomatal or nonstoinatal limitations. At enriched atmospheric CO2 levels, stomatal limitations to Pyj under drought stress were less important than at ambient atmospheric CO2 levels. Morning and aftemoon leaf starch levels were enhanced in both irrigated and nonirrigated plants in enriched CO2. Aftemoon starch levels were higher in stiessed leaves than in non-stressed leaves at normál CO2 levels.

Language:

Multiple languages

Rights:

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

Coverage:

447-454 and 129-136

Source:

Photosynthetica | 1993 Volume:29 | Number:3

Harvested from:

CDK

Metadata only:

false