Morphological Identification of Plant Nematodes found in the soil of Annona muricata Linn. family Annonaceae (Guyabano)

Authors

  • Manlangit, Anne Bernadette V., Verzo, Deanne Agatha R., Mapanao, Carmelita P., Zurbano, Leilidyn Y., Rendon, Arnel O., Alvarez, Lourdes V

Abstract

Plant parasitic nematodes have been overlooked in the Philippines, where extensive crop
losses are experienced due to the damage these nematodes cause. The Annona muricata Linn. family
Annonaceae or local name Guyabano is one of the most important fruit trees adapted to tropical countries.
This research identified the plant nematodes present in the rhizosphere of a A. muricate L tree. The soil
samples were collected from Herbana Organic Farms in Calamba, Province of Laguna, Philippines. The
modified Baermann tray was used to extract the plant nematodes from the soil sample and morphological
identities were observed using the Euromex BioBlue.Edit microscope. Morphological identities showed
two plant nematodes under Order Dorylaimida and Order Tylenchida. Abiotic factors have effects on the
soil nematode populations such as pH, Nitrogen, Phosphorus, and potassium content and texture. Acidic
soil causes a problem in nematodes on regulating their water status. Also, low Nitrogen and Phosphorus
content in soils cause a decline in the abundance of both plant-parasitic and free-living nematodes.
Potassium on the other hand, improves the general plant health. All collected information will be included
in the preliminary MYCONEMA database project.

Published

2020-10-16

Issue

Section

Articles