Variation in spore density and percentage of root length colonized by arbuscular mycorrhizal fungi rehabilitated waterlogged sites.

ANUPAMA RATTAN¹, MAHAVEER P SHARMA,SP CHAUHAN², & ALOK ADHOLEYA¹.

¹Microbial Biotechnology, Tata Energy Res Inst, Habitat Place, Lodi Road, New Delhi 110003, INDIA, ² Center for studies in Microbilogy, Jiwaji University,Gwalior,INDIA.

A study was carried at a loaclity undergone rehabilitation where waterlogging was usual phenomenon for more than nine months. VAM fungi distribution in all the plots represented by various tree species viz, Terminalia arjuna, Synzygium cumini, Populus euphratica and naturally grown Typha elephantina was found to be significantly different. Distribution of the two genera viz Glomus and Gigaspora. Glomus was dominated in T arjuna plot while Gigaspora was abundant in P euphratica plot. Former genera showed positive correlation to available soil P (r=0.74**, P=0.05) on the contarary Gigaspora to organic matter content (r=0.940***, P=0.05). Both the genera also predominated at the naturally grown T elephantina plot. The affinity of various VAM genera towards plant species and fertility levels would be discussed.

Key words: Wasteland, Populus euphratica, Terminalia arjuna, Synzygium cumini,Typha elephantina, VAM distribution.