Photosynthesis phased response to salt stress in fall dormancy standard varieties of alfalfa
CHEN Tuo-xiong
Abstract：The photosynthetic responses of Maverick, Archer and CUF101 to salinity stress by different NaCl concentrations(0, 50, 100, 150, 200 mM) were studied in this project, observing morphological features and levels of salt injury.The net photosynthetic rate(Pn), intercellular CO2 concentration (Ci) and stomatal con-ductance( Gs) were measured using Li-6400 under NaCl stress.with the increase of the NaCl concentration and stress time, the level of salt damage had increased in Maverick, Archer and CUF101, while the level of salt damage was different between the varieties and treatments.The photosynthetic response consisted of alarm phase, phase of resistance or phase of restoration, phase of exhaustion, under 50 and 100 mM NaCl.While the photo-synthetic response had nothing but phase of exhaustion, under 150 and 200 mM NaCl.
Keywords：fall dormancyMaverickArcherCUF101photosynthesis
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 152-155 )