Volume : VI, Issue : I, January - 2017
POPULATION DYNAMICS OF PLANT PARASITIC NEMATODES IN RICE BASED CROPPING SYSTEM
Th. Suchita Devi, Dr. Bina. B. Gogoi, Dr. Debanand Das, Dr. Nibedita Borgohain
Population dynamics of plant parasitic nematodes in relation to soil temperature, soil moisture and rainfall in rice was studied in ICR Farm, AAU, Jorhat campus. Maximum nematodes population was recorded during July with soil temperature 28.5°C, soil moisture 26.77 per cent and rainfall 373.7 mm, respectively and minimum population was recorded during January with corresponding soil temperature 18.66°C, soil moisture 13.32 per cent and without rainfall. Meloidogyne graminicola, Tylenchorhynchus and Helicotylenchus showed positive relationship with soil temperature, soil moisture and rainfall. Soil temperature has
significant impact in raise of nematode population in rice.