TY  - JOUR
AV  - public
SN  - 1588-385X
JF  - Acta biologica Szegediensis
EP  - 142
N1  - Bibliogr.: 142. p.; Abstract
IS  - 1-2
ID  - acta22706
A1  -  Molnár István
KW  - Természettudomány
KW  -  Biológia
SP  - 141
UR  - http://acta.bibl.u-szeged.hu/22706/
VL  - 49
N2  - The effects of drought stress induced by withholding water in soil pot were investigated on processes related to CO2  fixation of wheat, Ae. tauschii, Ae. speltoides and Ae. bicornis genotypes. A decrease in relative water content (RWC) of leaves from 95% to 85% resulted in intense stomatal closure and significant decrease in the net CO2 fixation in wheat and Ae. bicornis genotypes, while in Ae. tauschii and Ae. speltoides genotypes, gs and A parameters remained significantly high between 90% and 70% RWC. Despite the intense stomatal closure, the mesophyll limitation (Lm) to A, calculated from the A/Ci curves, dominated in wheat and Ae. bicornis genotypes, while the stomatal limitation (Ls) were typical of Ae. tauschii and Ae. speltoides genotypes during drought stress. These properties of Ae. tauschii and Ae. speltoides genotypes could be suitable for improving drought tolerance of wheat through intergeneric crossing.
Y1  - 2005///
TI  - Photosynthetic responses to drought stress in different Aegilops species
ER  -