PJB-2018-139
COMPARATIVE ASSESSENT OF WASTEWATWE AND RECLIAED WATER IRRIGATION ON GROWTH AND BIOCHEICAL REACTIONS IN BROAD BEAN AND MAIZE PLANTS
MOHAED MAHGOUB AZOOZ
Abstract
The reuse of wastewater in agriculture has important economic and environmental benefits. Pot experiments were conducted to compare and evaluate the irrigation effect of wastewater and reclaimed water on growth of broad bean and maize plants using physiological and biochemical parameters in comparison with those irrigated with normal water (control). The plants irrigated with wastewater and reclaimed water had a significant increase in growth, photosynthetic pigments, antioxidant enzymes activity, lipid peroxidation and ion leakage as compared to those irrigated with normal water. In most cases, wastewater was more effective than reclaimed water. A highly significant increase in the content of heavy metals in roots, whereas the opposite trend was observed in shoots of treated plants as compared with control. Heavy metals accumulated by plants were mostly more in roots than shoots. The present study concluded that, irrigation with wastewater or reclaimed enhanced plant growth which could attributed to the increased in antioxidative capacity of these plants and the higher nutrient content of these waters than the normal water. The results indicate that wastewater and reclaimed water could be used as alternative source in irrigation of plants to improve their growth and yield.
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