Abstract
Relationships between soil abiotic factors and population densities of plant parasitic nematodes spe-cies under planted fallow of Chromolaena odorata was investigated for 2 years. Soil samples were collected at 0 – 30 cm depth to determine population of nematode species and soil physico-chemical properties was done at test initiation and afterwards at 6 months interval for 2 years. Four genera of plant parasitic nematode species (Meloidogyne spp., Pratylenchus spp, Helicotylenchus spp. and Xiphinema spp) and two free – living (Rhabditids and Dorylaimus spp.) were identified in the fallow. Soil organic Matter and soil N were significantly higher at 2 years than at 6, 12 and 18 months. Popu-lation density of plant parasitic nematode species significantly reduce as the fallow period extend reaching minimum at 2 years of fallow. Highest percentage reduction of 90.3 % was observed in popu-lation of Xiphinema at 2 years of fallow, followed by Pratylenchus with 51.5 % reduction in population and lowest reduction of 44 % was observed in Meloidogyne population. Negative and significant rela-tionship existed between soil physico-chemical properties and population density of plant parasitic nematode species indicated that soil characteristics play an important role in the abundance, distribu-tion and structure of nematode communities.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
