Authors:S.M. Salunkhe, S. Rawat, N. Singh, N. Mehta, S. Das and Y.P. Singh
Abstract:A survey was conducted for evaluating the mycorhizal status of seven bamboo species, namely, Bambusa polymorpha, B. multiplex, B. nutans, B. tulda, Cephalostachyum pergracile, Dendrocalamus giganteus and Melocanna baccifera planted in Bambusetum of Forest Research Institute, Dehradun. Composite samples of root and soil from each species were analyzed for mycorrhizal types, root colonization and spore population, and physico-chemical properties respectively. All the species, barring B. multiplex and M. baccifera, reported the low presence of arbuscules, scanty internal- and externalmycelium and had a good number of chlamydospores. Root colonization showed a diverse pattern ranging from moderate colonization [50-60%, C. pergracile (50.6 %), and B. polymorpha (63.4%)] to high colonization [> 70%, M. baccifera (79.5 %) and B. tulda (80.8 %)]. Spore population, in general, was high (14.1 spores/ml of root zone soil) and it was maximum in M. baccifera (21.9 spores/ml) and minimum in C. pergracile (5.0 spores/ml). Physical aspects of the mycorrhizal relationship has been defined in the ambit of phenology of the host.
Keywords:Bamboo, Mycorrhizal structure, Phenology