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Journal of Agronomy
Year: 2007  |  Volume: 6  |  Issue: 1  |  Page No.: 75 - 80

Screening Wheat and Barley Genotypes for Salinity Resistance

Talal Thalji and Ghalib Shalaldeh    

Abstract: To screen wheat and barley genotypes for salinity resistant, 10 bread wheat, 12 durum wheat and 11 barley genotypes were planted under saline conditions. Salinity was ranged (20.6-21.9 and 4.5-5.5 dS m-1) for both soil and water, respectively. Wheat genotypes Jumaizah, Bin-bashair and Snap and barley genotypes Acsad 176, line 5 and Rum showed high biological yield Performance. Genotypes: Jumaizah, Bin-bashair, Snap, Cham3 and Cham6 and barley genotypes: line3, line2 and line5 showed high seed yield performance. However wheat genotypes Behowth1 exhibited the highest straw yield performance compared to other wheat genotypes. Germination percentage has a strong positive correlation with seed yield (0.75) and straw yield (0.41). Negative association between heading and physiological maturity periods with seed yield (-0.29) for each was obtained. Concerning wheat and barley genotypes nitrogen (N) content at the three leaf stage was negatively correlated (-0.19) with seed yield compared to the elongation stage, while, Potassium (K) and K/Na ratio showed a strong positive correlation at the tree leaf stage (0.21 and 0.22), respectively. In wheat genotypes Potassium (K) content, (K/Na) and Sodium (Na) have showed a strong positive correlation with seed yield in wheat genotypes (0.26, 0.29 and 0.30), respectively whereas, chloride (CL) showed a strong negative correlation (-0.26) with the seed yield. In barley genotypes, P and K have a strong negative correlation with the biological yield (-0.42 and -0.39), respectively and with the straw yield (-0.47 and -0.49), respectively at the three leaf stage. Sodium (Na) (-0.39) has the same trend like P and K but at the elongation stage. It is clear that leaf analysis at the 3-leaf stage is more indicative to reveal salinity resistance in both wheat and barley genotypes compared to the advanced growth stages. K/Na ratio could be used as selection criteria for salinity resistance because it is highly correlated with biological, seed and straw yields in both wheat and barley genotypes. Bread wheat genotypes: Jumaizah and Cham6, durum wheat genotypes: Bin-bashair, Cham3 and Snap and barley genotypes: Line5, Accsad176 and Rum are selected as salinity resistant genotypes.

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