STUDY OF KINETIN TRAETMENT ON GROWTH AND ACTIVITY OF SOME ANTIOXIDANT ENZYMES OF SPINACH UNDER SALT STRESS

Soil salinity reduces water availability of plant roots via negative (low) osmosis potential, as well decrease germination dynamics seeds by ionic toxicity Na and Cl, Significant differences in fruit-set, yield, photosynthetic rates, stomatal conductance, total chlorophyll content, proline, In general, affects almost every aspect the physiology biochemistry plants. This experiment was conducted on a private farm Babylon Governorate at period from 1/10/ 2013 to 15/5/ 2014, study effect Kinetin treatment with three concentrations (0, 20 & 40 mg /liter ) quality irrigation levels ( 1.3 , 5 10) dS.m-1 increased POX CAT activity, sodium proline contents leaves, resulting decreased growth leaf NPK, The applications alleviated effects saline increasing dry weights NPK leaves an reduction leaves.