Polynucleotides, polypeptides encoded thereby, and methods of using same for increasing abiotic stress tolerance and/or biomass and/or yield in plants expressing same

Provided are methods of increasing tolerance of a plant to abiotic stress, and/or increasing biomass, growth rate, vigor and/or yield of a plant. The methods are effected by expressing within the plant an exogenous polynucleotide encoding a polypeptide comprising an amino acid sequence at least 90%...

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