Impact of the Interaction between Meloidogyne javanica and Fusarium oxysporum on the Okra Plantation
Manisha *
Division of Nematology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur- SKN Agriculture University, Jobner 303329, India.
S. P. Bishnoi
Division of Nematology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur- SKN Agriculture University, Jobner 303329, India.
Mamata
Department of Agronomy, MPUAT, Udaipur 333042, India.
Sharad Kumar Meena
Division of Entomology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur- SKN Agriculture University, Jobner 303329, India.
Ramavath Abhi
Department of Nematology, MPUAT, Udaipur 333042, India.
Santosh Yadav
Department of Soil Science & Agricultural Chemistry, MPUAT, Udaipur 333042, India.
Rahul Meena
Division of Nematology, Rajasthan Agricultural Research Institute, Durgapura, Jaipur- SKN Agriculture University, Jobner 303329, India.
*Author to whom correspondence should be addressed.
Abstract
The development of diseases in cultivated crops depends on the complex interrelationship between the host, pathogen, and prevailing environmental conditions. The interaction between the root knot nematode Meloidogyne javanica and the fungus Fusarium oxysporum was studied for the okra cultivar Pusa Sawani. Sequential and simultaneous inoculation of the nematode and fungus was performed to observe the disease severity in the plants due to the individual and interactive effects of the tested nematode and fungus. The results indicated that plant growth was adversely affected in all cases where the plant was inoculated with M. javanica and F. oxysporum, compared to the uninoculated control. The study clearly showed that nematodes act as predisposing factors in the spread of secondary fungal pathogens.
Keywords: Okra, wilt, fusarium, meloidogyne, interaction