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SCREENING OF DIFFERENT ACCESSIONS OF THREE POTENTIAL GRASS SPECIES FROM CHOLISTAN DESERT FOR SALT TOLERANCE
Abstract
Experiments for evaluation of 22 accessions of three grass species (Panicum antidotale, Cenchrus ciliaris and Sporobolus iocladus) from Cholistan for salinity tolerance were conducted in a growth chamber under controlled environmental conditions at NIAB, Faisalabad, Pakistan. Germination stress tolerance index (GSTI), plant height and dry matter stress tolerance indices (PHSTI, DMSTI), cell membrane stability (% injury) and relative saturation deficits (RSD) of the germinating seeds were measured in all accessions under 0 or 1.5 % NaCl level. The results indicated that the accessions with high GSTI, cell membrane stability (less % injury), PHSTI, DMSTI and low RSD were more salt tolerant than the others thus seem promising for getting good productivity in salt-affected areas. These protocols are low cost, rapid and reliable for screening the germplasm of grasses against salinity.
