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Compatibility of Heterorhabditis indica with neem seed and kernel granules for suppressing Meloidogyne incognita infecting tomato

Compatibility of Heterorhabditis indica with neem seed and kernel granules for suppressing Meloidogyne incognita infecting tomato

A.S. Ardakani

Agricultural and Natural Resources Research Center of Kohgyloyeh va Boyreahmad Province,
Yasouj, Iran
†Corresponding author email: salahi_abbas@yahoo.com

ABSTRACT

A glass house experiment was conducted to study the effect of neem seed granules (NSG), neem seed kernel
granular (NSKG) formulation and H. indica alone as well as their combinations on Meloidogyne incognita
infecting tomato. Among the different treatments, combined application of H. indica @ 160 J3/g soil +
NSKG formulation @ 1 g/kg soil followed by H. indica @ 160 J3/g soil + NSG formulation @ 1 g/kg soil
were found high to all other treatments in suppressing the M. incognita population (267 and 289 J2/g soil)
and thus, significantly (P  0.05) less gall formation (237 and 361) respectively, as compared to untreated
inoculated control (1368 galls per plant). Also the treatment of H. indica @ 160 J3/g soil alone, reduced the
number of galls (433) significantly in comparison with inoculated control (only M. incognita J2/g soil). All
the treatments resulted in improved plant growth characters such as root length, shoot length, root fresh
weight and shoot fresh weight at P  0.05 significance level in comparison with the treatments only M.
incognita inoculum.

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Pakistan Journal of Nematology

June

Pakistan Journal of Nematology, Vol. 42, Iss. 1, Pages 1-87

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