Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 11, Issue 4, 2009; Page No.(913-916 )

ROLE OF BACKWATER CYANOBACTERIA IN ENHANCING FERTILITY AND YIELD OF RICE IN SALINE ALKALI SOIL

G. SELVAKUMAR AND M. SUNDARARAMAN

Abstract

Saline alkali soil was reclaimed through biological methods using backwater cyanobacteria. Two predominant saline tolerance species such as Phormidium fragile and Oscillatoria curviceps were used for the treatment of saline alkali soil. The important parameters such as pH, electrical conductivity and exchangeable sodium percentage were decreased significantly. Moreover, these two species were increased the growth of paddy in terms of chlorophyll, shoot length, root length, fresh weight, dry weight and grains weight. However, the influence of free P. fragile showed maximum reclamation of soil and yield of paddy than the O. curviceps.

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