Detection of Salt Tolerant Hybrid Maize as Germination Indices and Seedling Growth Performance

Bangladesh Agricultural Research Institute (BARI), Stress Breeding Lab, Joydebpur, Gazipur 1701, Bangladesh


Bagum, S. A., M. Billah, N. Hossain, S. Aktar and M. S. Uddin, 2017. Detection of salt tolerant hybrid maize as germination indices and seedling growth performance. Bulg. J. Agric. Sci., 23 (5): 793–798

Salinity is a major environmental stress factor for crop production and is an extensive limitation for seed germination. A germination test was carried out with four replications and three levels of salt concentrations (0 dS.m-1, 6 dS.m-1 and 12 dS.m-1) in plastic tray under quartz granules. Analysis of variance (ANOVA) indicated that all traits were significance (P < 0.01) for genotypes, treatment and their interaction. Germination percentage (GP), germination speed (GS), germination index (GI), maximum root length (MRL), maximum shoot length (MSL), total  dry matter (TDM), and salt tolerance index (STI), seed vigor index (SVI) were all decreased as the level of NaCl was increased. Mean germination time (MGT) and Percent reduction in dry weight over control (ROC%) was increased as the NaCl concentration increased. From the result, it is concluded that 962, Super gold, Kaveri-50, PAC-999, 9120, 900M Gold and C-6485 hybrids would be tolerant while prince articulated as salt sensitive.

Key words: maize; salinity; stress; germination; tolerant
List of abbreviation: GP – germination percentage; GS – germination speed; GI – germination index; MGT – mean germination time; MRL – maximum root length, cm; MSL – maximum shoot length, cm; TDM – total dry matter, g; STI – salt tolerance index; SVI – seed vigor index; ROC% – percent reduction in dry weight over control

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