Abstract
The response of germination and early seedling growth of different transgenic rice lines (T-99, T-112, T-115 and T-121) were examined in different levels of salinity (0, 50, 100 and 150 mM NaCl). Final germination, germination rate (1/t50, where t50 is the time to 50% of germination) and early seedling growth were assessed. Final germination percentage was inhibited with increasing salt concentrations. The required time for germination also increased with increasing salinity levels. The seedling growth was also reduced by salt concentrations, particularly at 150 mM. Root and shoot lengths, root/shoot ratio, fresh weights of root and shoot were also decreased with increasing salt stress. T-99 and T-112 had shown greater performance at germination and early seedling growth as compared to other transgenic lines.
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