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EFFECT OF DYE INDUSTRY EFFLUENT ON GROWTH AND SOME BIOCHEMICAL CHARACTERISTICS OF CERTAIN TREE SPECIES

Abstract

The present study deals with the effect of Dye industry effluent on growth and some biochemical characteristics of certain tree species grown for a period of 60 days. Physico- chemical characteristics of dye industry effluent such as pH, electrical conductivity, total solids, total dissolved solids, total suspended solids, hardness, alkalinity, sodium, potassium, calcium, chloride, dissolved oxygen, dissolved carbon dioxide, BOD and COD were estimated. Three tree species such as Delonix regia, Albizzia amara and Acacia auriculiformis were grown in different concentrations of dye industry effluent (10, 20, 30, 40 and 50%) along with organic amendments. Among the treatments the germination percentage of Delonix regia was higher in T0 (Control) and lower in Acacia auriculiformis (T5 – 50%). Growth characteristics such as shoot length, root length, fresh weight and dry weight were higher in Delonix regia and lower in Acacia auriculiformis. Biochemical characteristics such as chlorophyll a, b, total chlorophyll and carotenoid content were higher Delonix Regis followed by Acacia auricliformis.

M. R. RAJAN , M. PERIYASAMY AND G. SURESH

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