Effect of presowing seed treatments on germination and early seedling growth of wheat varieties under saline conditions |
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Authors: | Maqsood Ahmed Kamboh Yoko Oki Adachi Tadashi |
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Institution: | 1. Graduate School of Natural Science and Technology , Okayama University , Okayama , 700-8530 , Japan;2. Faculty of Environmental Sciences and Technology , Okayama University , Okayama , 700-8530 , Japan |
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Abstract: | The effect of presowing wheat seed treatments was investigated for the salt-sensitive variety Blue Silver and relatively salt-tolerant variety PARI-73 at the germination and early seedling stages. Seeds were treated with distilled water (DW) or 10/50 mm KCl, KNO3 , CaCl2, Ca(NO3)2 and then germinated in DW or 200 mm NaCl. Treatment with calcium (Ca) or potassium (K) did not lead to a significantly higher rate for final germination than the DW treatment. Ca salt treatments significantly improved shoot growth during the early seedling establishment stage in both varieties, especially in the salt-sensitive variety Blue Silver. There were significant differences in the Ca content of seeds after various presowing treatments. There were also significant differences between both varieties in the ion contents after seed treatment. However, these differences appeared to be related to the improvement of shoot growth during the early seedling establishment stage and not to the effectiveness of pres owing seed treatments in increasing germination. |
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Keywords: | germination and early seedling growth ion contents presowing treatments salinity wheat varieties |
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