Diversity and population density of parasitic nematodes in rhizosphere of carrot (Daucus carota) in West Sumatra production centers

Abstract

Abstract. Liswarni Y, Resti Z, Busniah M.. 2019. Diversity and Population Density of Parasitic Nematodes in rhizosphere of carrot (Daucus carota L.) in West Sumatra Production Centers. Pros Sem Nas Masy Biodiv Indon 5: 190-193. Parasitic nematodes are one of the obstacles in increasing carrot production because they attack carrot roots so that the tubers are not formed. The diversity and population density of parasitic nematodes are influenced by environmental conditions and plant species. The aim of the study was to determine the types of parasitic nematodes and their population density in carrot plants. Soil samples were taken from the rhizosphere of carrot plants in the West Sumatra production centers, namely Solok and Tanah Datar . The results obtained 7 genera of parasitic nematodes namely Ditylenchus, Trichodorus, Aphelenchoides, Meloidogyne, Helycotylenchus, Hemicycliophora, and Xiphinema. The average population density is 0.185 individuals/cm₃, the population density in Solok is higher than in the Tanah Datar