Year: 2017, Issue: June

AMF symbiosis in forest species plantations and its relationship with major soil nutrients inentisol soil of Bilaspur (C.G.).
Atul Kumar Bhardwarj and K. K. Chandra
AMF colonization, Tree Plantation, Entisol, Spore density, Soil nutrient.
The present study was conducted to investigate the AMF root colonization in Albizia lebbeck, Azadirachta indica, Dalbergia sissoo, Delonix regia, Eucalyptus globulus, Millettia pinnata, Peltophorum ferrugineum, Phyllanthus indica and Terminalia arjuna and its relationship with physio-chemical properties of entisol soil after 26 years of plantation age. All trees found to increase nutrients, pH and OC compared to unplanted soil, and colonized by AMF, however, a significant variations were existed between tree species plantations at P=0.05. Mean root colonization was ranged lowest 30% in A.indica to highest 62% in D.sissoo and T.arjuna. Similarly P.ferrugineum harbor maximum spore population (128�7.15) whereas only 35 spore/100g soil recorded under E.globulus. Soil pH of entisol found between 6.59 to 6.71, whereas OC between 0.27% to 0.56% under different tree plantations. Available N estimated maximum 129 kg/ha under D.regia and minimum 111 kg/ha under A.indica. The N was observed in low range while P and K were found at medium range in the red entisol soil. Pearson correlation between AMF root colonization and soil attributes found positive for spore density (r = 0.507), available N (r = 0.026) and Potassium (r = 0.261) while negative relation observed with pH (r = -0.072), OC (r = -.0.094) and available Phosphorus (r = 0.-255) respectively. Individually, significant variations existed among species in all parameters, which indicated nutrient dependent regulation of AM colonization according to needs of plants and its supply from soil.

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