Community analysis of plant parasitic nematodes associated with pulse crops in hamirpur district (Uttar Pradesh)

One hundred and seventy four soil samples were collected around the roots of pulse crops in district Hamirpur, Uttar Pradesh during March 2004. Community analysis of sixty three soil samples of chickpea revealed the presence of Hoplolaimus indicus, with highest frequency (95.23), density (180.95), prominence value (17.65) and importance value (94%) followed by Tylenchorhynchus mashhoodi. Twenty one soil sample collected from lentil, yielded five species of plant parasitic of which nematodes T. mashhoodi, had highest absolute frequency (85.71), density (231.42) and prominence value (21.42%), while, H. indicus had highest biomass and importance value. Seventy two soil samples collected around the roots of the pigeon pea, yielded nine plant parasitic nematode species of which T. mashhoodi was the most frequent and abundant species. Xiphinema americanum had the maximum biomass (B=2.86 μg; RB=45.25 per cent). Seven species of plant parasitic nematodes were associated with field pea. Among them T. mashhoodi had the highest frequency (83.33), density (276.66), prominence value (25.25) and importance value (98.71%), followed by Filenchus sp.