Abstract
This study assessed salinity tolerance in 11 pearl millet genotypes at germination and seedling stages under varying salt concentrations. Results showed a reduction in germination percentage, plumule and radicle lengths, with more significant decreases at higher salinity levels (75mM, 100mM). Despite poor germination, dry weight increased with salt concentration, indicating salt accumulation. Radicle length increased up to 25mM, suggesting plant adaptability to abiotic stresses. Under control conditions, CO 10 and CO (Cu) 9 exhibited the highest germination, while PT 6476 showed the least at 100mM salinity. ICMB 10444 had the maximum plumule length, and ICMB 98222 had the minimum. CO Cu 9 showed the highest radicle length under control, while Kizhilikuppam had the highest at 100 mM salinity. ICMB 15088 had the highest dry weight under control, and CO H 10 had the highest at 100 mM salinity. All genotypes were affected by NaCl stress, reducing seed germination, seedling growth, and nutrient uptake. COH10 showed the least impact, indicating higher genetic potential for salinity tolerance.
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