PJB-2010-315
RESPONSE OF WHEAT SPECIES TO THE CONTRASTING SALINE REGIMES
SAEED RAUF1*, M. SHAHZAD ADIL1, ABDUL NAVEED2 AND HASSAN MUNIR3
Abstract
Salinity is a major production constraint for wheat. Therefore, an experiment was conducted to determine the interspecific variability among the species for salinity stress. Species have changed their relative ranking across the salinity regimes, thus show the relative tolerance of the species to the salinity stress. Correlations between the ploidy levels and morphological traits were significantly positive under saline conditions, showing values of morphological traits increased with number and types of genomes. Trait such as leave yellowness was independent of ploidy level and may be used to discriminate and compare the species for salt tolerance. Phenotypic scoring of this trait further makes it appropriate to be used in breeder’s large segregating populations. Thus lower values of leaves yellowness may be used to discriminate genotypes for salinity resistance.
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