Trophic group structure of nematodes in the rhizosphere of blueberry in the Eastern Liaoning

【Objective】To elucidate the trophic group structure of nematodes in the rhizosphere of blueber-ry in the eastern side of Liaoning.【Methods】The important genera and species of nematodes were compre-hensively studied by using principles and techniques of morphological taxonomy.【Results】The 9806 soilnematode individuals were classified into 19 families with 29 genera. The results showed that the bacteri-vore group and phytoparasitic nematodes were the dominant group,the fungivore group and omnivore-predator feeders were lower than those of the former two groups. Among them,18 genera of nematodes be-long to un- plant parasitic nematodes and 11 genera of nematodes belong to phytoparasitic nematodeswhich accounted for more than 1/3 of nematode collectivity,especially the nematodes in the genus of Tylenchus and Nothotylenchus,involving 10(83%)and 7(58%)varieties of blueberry,respectively.【Con-clusion】The quantity of nematodes existing in the rhizosphere of blueberry in the eastern side of Liaoningexceed the threshold.