University Of Tasmania

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Relations betweeen physiological traits and grain yield in barley unders saline condition

conference contribution
posted on 2023-05-23, 17:39 authored by Zhu, M, Sergey ShabalaSergey Shabala, Svetlana ShabalaSvetlana Shabala, Peter JohnsonPeter Johnson, Meixue ZhouMeixue Zhou
Salinity affects crop production worldwide and the success of breeding barley for salinity tolerance relies on the availability of efficient screening tools. In this paper, 3 major contributors to salinity were found by regression analysis in 13 barleys: fresh weight, dry weight, stomatal conductance. Through correlating between actual grain yield and predicted value, r2 value is 0.9285, which means that we can predict the salt tolerance by determining these 3 physiological traits. Based on cluster analysis, it was also found that higher K+ content in leaf and lower Na+/K+ ratio in xylem can promise better performance in salt stress (TX, YYXT & ZUG293). The contrary instance can be observed in Franklin, Gairdner and NN which are all thought as salt sensitive genotypes. So we might deduce that stomatal density and potassium content in shoot and ratio of Na+/K+ in xylem sap are critical factors of the mechanism of salt tolerance.


Grains Research & Development Corporation


Publication title

The 16th Australian Barley Technical Symposium


Tasmanian Institute of Agriculture (TIA)


Australian Barley Technical Symposium Inc

Place of publication

Melbourne, Victoria

Event title

The 16th Australian Barley Technical Symposium

Event Venue

Melbourne, Victoria

Date of Event (Start Date)


Date of Event (End Date)


Repository Status

  • Restricted

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