Photosynthetic rate, stomatal resistance and leaf water potential in cotton (Gossypium hirsutum L.) as affected by soii moisture and irradiance

Title:

Photosynthetic rate, stomatal resistance and leaf water potential in cotton (Gossypium hirsutum L.) as affected by soii moisture and irradiance

Creator:

Ephrath, J. E., Marani, A., and Bravdo, B. A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d4f0fc2e-4659-449e-9704-6b848fb29ba4
uuid:d4f0fc2e-4659-449e-9704-6b848fb29ba4
urnnbn:urn:nbn:cz:aba007-000fg3

Type:

model:internalpart and TEXT

Format:

print

Description:

The effects of moisture stress on leaf water potential ('ť|eaf)> photosynthetic rate (/^n) and stomatal resistance (r^) of cotton, Gossypium hirsutum L., were studied under field conditions. Sprinkler irrigation trials were conducted using the single source line technique. r^ increased and decreased as a result of moisture stress, more than in a concurrent drip irrigation experiment, r^ was only slightly affected by irradiance when the plants were subjected to moisture stress, but it decreased in response to an increase in irradiance (/) in the well irrigated plants. A linear relationship between T^ieaf and r^ and between 'ťigaf and found in both experiments at low /, whereas exponential relationship was found at high I. Even though high values of r^ were recorded under the extreme moisture stresses of both experiments, intemal CO2 concentration (cj) increased during the day, indicating that non-stomatal factors (such as mesophyll resistance) are the main factors limiting the photosynthetic process.

Language:

Multiple languages

Rights:

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

Coverage:

63-71 and 65-73

Source:

Photosynthetica | 1993 Volume:29 | Number:1

Harvested from:

CDK

Metadata only:

false