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Potential of applied potassium in improving salt tolerance of Maize (Zea mays L.) hybrids

By: Hassan Mehmood, Ghulam Hasan Abbasi, Moazzam Jamil, Zaffar Malik, Muhammad Ali, Rashid Iqbal, Salman Ahmed, Muhammad Waqar Akhtar, Muhammad Irfan, Sobia Afzal

Key Words: Salinity, Potassium, Maize, Growth, Physiology

J. Bio. Env. Sci. 16(3), 35-43, March 2020.

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Hydroponic experiment was performed to evaluate the response of three maize hybrids to potassium supply under salinity stress. Potassium was applied at the rate of 9 and 18mm K under saline (120mm L-1 NaCl) and non-saline condition in half strength Hoagland solution. Results revealed that salt stress negatively affected the root length, shoot length, root fresh and dry weight, shoot fresh and dry weight, relative water content, membrane stability index, K+, K+/Na+ ratio in all maize hybrids while reverse is true in case of Na+. However, K application significantly alleviates the hazardous effect of salinity. The prominent effect of K application was observed @ 18mm K in maize hybrid YH relative to other levels of K and maize hybrids respectively under both saline and non-saline condition.

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Potential of applied potassium in improving salt tolerance of Maize (Zea mays L.) hybrids

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Hassan Mehmood, Ghulam Hasan Abbasi, Moazzam Jamil, Zaffar Malik, Muhammad Ali, Rashid Iqbal, Salman Ahmed, Muhammad Waqar Akhtar, Muhammad Irfan, Sobia Afzal.
Potential of applied potassium in improving salt tolerance of Maize (Zea mays L.) hybrids.
J. Bio. Env. Sci. 16(3), 35-43, March 2020.
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