Research on association of VAM with Azolla pinnata and other aquatic plants and its seasonal distribution of Azolla in various location of Jabalpur city

An experiment was conducted at J.N.K.V.V Jabalpur to study the association of VAM (Vesiculer anbusculer mycorrhiza) with Azolla piñata rhizoids and other aqnatic plants. As it may be an example of unique obligate symbiosis with Anabaena azollae, present in the dorsal cavity of Azolla. This has beeen promoted to find out association of VAM with Azolla pinnata because of earlier finding of Firdans e-bareen (1990) was quite interesting enough to establish whether this tripartite symbiosis does exit or feasible in aquatic or littoral environment. After investigations, apart from there major sites of Jabalpur city seven more lactations were surveyed for not only Azolla pinnata but Lenma minor, Echharnia crasipes, Trapa bispinosa and Iponea aquetica also. The rhizodis of the samples were examined for finding association of VAM. Our finding has gone contrary to the existence of VAM association with Azolla pinnata. However, ecophysiological studies was also done for occurrence of Azolla pinnata in Jabalpur region.