Influence of potassium nutrition on gas exchange characteristics and water relations in cotton (Gossypium hirsutum L.)

Title:

Influence of potassium nutrition on gas exchange characteristics and water relations in cotton (Gossypium hirsutum L.)

Creator:

Pervez, H., Ashraf, M., and Makhdum, M. I.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f7c822d9-a9b5-4d14-ac48-1e24156b49be
uuid:f7c822d9-a9b5-4d14-ac48-1e24156b49be
issn:0300-3604
doi:10.1023/B:PHOT.0000040597.62743.5b

Subject:

net photosynthetic rate, osmotic potential, pressure potential, stomatal conductance, transpiration ate, and water-use efficiency

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The effects of potassium nutrition [0, 6.25, 12.50, 25.00 g(K) m-2 of K2SO4 or KCl] on gas exchange characteristics and water relations in four cultivars (CIM-448, CIM-1100, Karishma, S-12) of cotton were assessed under an arid environment. Net photosynthetic rate (PN) and transpiration rate (E) increased with increased K supply. The leaf pressure potential (Ψp) increased significantly by the addition of 25.00 g(K) m-2 compared to zero K level. The water use efficiency (PN/E) was improved by 24.6 % under the highest K dose compared to zero K. There were positive correlations (0.99**, 0.98**, 0.95**, 0.97**) between K-doses and PN, E, Ψp, and PN/E, respectively. and H. Pervez, M. Ashraf, M. I. Makhdum.

Language:

Multiple languages

Rights:

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

Coverage:

251-255

Source:

Photosynthetica | 2004 Volume:42 | Number:2

Harvested from:

CDK

Metadata only:

false