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Thirty six single cross hybrids with six commercial checks were evaluated for yield performance along with earliness, plant height and ear height. The mean performance for days to tasseling and days to silking were significantly different among the hybrids. Considering the yield, Kaberi 50 and Pioneer 3396 were found as the best and the second best check, respectively. None of the hybrids produced higher yield compared to the best check Kaberi 50. On the other hand, L1´T1, L3´T1, L5´T3, L6´T3, L10´T1 and L1´T3 produced higher yield compared to 2nd best check Pioneer 3396 whereas L5´T3 and L11´T3 were earlier than the checks. The seven lines involving these crosses were selected for next generation evaluation. Better performing crosses showed higher K+/Na+ and lower contents of O2•-, H2O2 and melondialdehyde (MDA) than the susceptible crosses suggesting their better stress tolerance ability and thus better performance in yield.   Key words: Maize yield, saline sensitivity, K+/Na+, superoxide, H2O2, melondialdehyde.

Higher K+/Na+ and lower reactive oxygen species and lipid peroxidation are related to higher yield in maize under saline condition