Changes in photosynthetic activity in five common hybrids of oil palm (Elaeis guineensis Jacq.) seedlings under water deficit

Title:

Changes in photosynthetic activity in five common hybrids of oil palm (Elaeis guineensis Jacq.) seedlings under water deficit

Creator:

Suresh, K., Nagamani, C., Kantha, D. L., and Kumar, M. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:afb28d63-0e4f-4a80-b9be-9245fb6913f2
uuid:afb28d63-0e4f-4a80-b9be-9245fb6913f2
issn:0300-3604
doi:10.1007/s11099-012-0062-2

Subject:

botanika, botany, drought, Elaeis guineensis Jacq., gas exchange, stomatal conductance, water deficit, 2, and 58

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The leaf water potential, gas-exchange parameters and chlorophyll fluorescence were evaluated in five common oil palm (Elaeis guineensis Jacq.) tenera hybrids 913X1988, 1425X2277, 748X1988, 7418X1988, and 690X1988 under water deficit with an aim to identify hybrids which can cope up better under such conditions and understand possible differences among hybrids in relation to the physiological mechanisms triggered by water deficit. Our findings indicate oil palm hybrids 913X1988, 1425X2277, and 7418X1988 maintained higher leaf water potentials than the other hybrids. Hybrids 7418X1988 and 1425X2277 recorded lower stomatal conductance after water deficit, which resulted in higher intrinsic water-use efficiency. The excess light energy produced due to decreased photosynthesis in 7418X1988 and 690X1988 hybrids under water deficit was dissipated as heat by higher nonphotochemical quenching. The maximum efficiency of photosystem II was not affected, even after withholding water for 24 days, suggesting an increased efficiency of photoprotection mechanisms in all these oil palm hybrids., K. Suresh ... [et al.]., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

549-556

Source:

Photosynthetica | 2012 Volume:50 | Number:4

Harvested from:

CDK

Metadata only:

false