Growth, photosynthesis, water relations and competition of the old-fieid species Abutilon theophrasti, Ambrosia trifida, and Helianihus annuus grown under controlied conditions

Title:

Growth, photosynthesis, water relations and competition of the old-fieid species Abutilon theophrasti, Ambrosia trifida, and Helianihus annuus grown under controlied conditions

Creator:

Norman, F. and Martin, C.E.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:bef49230-171a-470e-a1fa-3804eaa5cbb5
uuid:bef49230-171a-470e-a1fa-3804eaa5cbb5
urnnbn:urn:nbn:cz:aba007-000fl7

Type:

model:internalpart and TEXT

Format:

print

Description:

The effects of intra- and interspecific competition on growth, net photosynthetic rate (/^n), intemal CO2 concentration (cj), leaf conductance to CO2 (gi), and xylem leaf water potentials Q¥) were investigated among well-watered seedlings of the old-field species Abutilon theophrasíi. Ambrosia tri/ida, and Helianíhus annuus. In all comparisons, *F values of the target plants were unaffected by the presence of neighbors. On the other hand, revealed inhibitory effects of neighbors on A. theophrasíi and H. annuus. The above- and belowground biomass of all species was reduced in the presence of neighbors. Hence both inter- and intraspecific competition among seedlings may be important in influencing community stiucture in old-field communities.

Language:

Multiple languages

Rights:

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

Coverage:

361-371 and 43-53

Source:

Photosynthetica | 1994 Volume:30 | Number:3

Harvested from:

CDK

Metadata only:

false