Vol. 12, Issue 9 (2023)

Author(s):
R Prem, S Prabhu, I Muthuvel, KA Shanmuga Sundaram and N Seenivasan

Abstract:
Guava holds significant economic value for small, medium, and large-scale guava growers worldwide, contributing substantially farm revenue. Root-knot nematode Meloidogyne enterolobii is now becoming a significant threat to guava production globally. Meloidogyne enterolobii infected guava orchards are diagnosed through the symptoms like stunted growth, branch drying, reduced vigor, decreased productivity and plant wilting. Various nematode management strategies like cultural, biological and chemical have established against this nematode pest on guava. However, host plant resistance can be a permanent solution considering cost economics and sustainability. Various efforts made across the globe to explore M. enterolobii resistance in guava on various aspects. This manuscript provides an overall progress made on guava nematode resistance by inclusion of total list of guava varieties/species with resistance, their mode of resistance mechanism, current status of utility of resistance sources on developing nematode resistant guava grafts, induction of systemic resistance in guava and future prospects are dealt. This review will be useful for nematologists and breeders to move forward the existing M. enterolobii resistance programme in a holistic way.