Articles
REACTION OF WILD SOLANACEAE TO MELOIDOGYNE INCOGNITA RACE 1 AND M. JAVANICA
Article number
917_31
Pages
237 – 241
Language
English
Abstract
Under greenhouse conditions and in commercial fields, the advantages of grafting in the control of soil borne pathogens are evident.
However, there is still need for further studies on the behaviour of species with potential for use as rootstocks concerning compatibility, productivity, and reaction to soil borne pathogens, especially nematodes.
The reaction of five wild Solanaceae: Solanum asperolanatum, Solanum stramonifolium, Solanum sp., Solanum paniculatum, and S. subinerme to two species of root-knot nematode, Meloidogyne incognita race 1 and M. javanica was evaluated. Rutgers (susceptible) and Nemadoro (resistant) were used as standard cultivars.
The experiment was conducted in a completely randomized design and the treatments arranged in a factorial 5×2 (five species of wild Solanaceae and two species of root-knot nematode), with six replications.
The seedlings of the wild Solanaceae were maintained in pots, under greenhouse conditions and inoculated with 6000 eggs and juveniles of the root-knot nematode species/plant. 63 days after inoculation the plants were evaluated for the egg mass index (EMI), gall index (GI), number of eggs per gram of root (NEGR), and reproduction factor (RF). The species S. stramonifolium, S. paniculatum and S. subinerme were as resistant to M. javanica and a mixed popula¬tion (M. incognita race 1 and M. javanica).
However, there is still need for further studies on the behaviour of species with potential for use as rootstocks concerning compatibility, productivity, and reaction to soil borne pathogens, especially nematodes.
The reaction of five wild Solanaceae: Solanum asperolanatum, Solanum stramonifolium, Solanum sp., Solanum paniculatum, and S. subinerme to two species of root-knot nematode, Meloidogyne incognita race 1 and M. javanica was evaluated. Rutgers (susceptible) and Nemadoro (resistant) were used as standard cultivars.
The experiment was conducted in a completely randomized design and the treatments arranged in a factorial 5×2 (five species of wild Solanaceae and two species of root-knot nematode), with six replications.
The seedlings of the wild Solanaceae were maintained in pots, under greenhouse conditions and inoculated with 6000 eggs and juveniles of the root-knot nematode species/plant. 63 days after inoculation the plants were evaluated for the egg mass index (EMI), gall index (GI), number of eggs per gram of root (NEGR), and reproduction factor (RF). The species S. stramonifolium, S. paniculatum and S. subinerme were as resistant to M. javanica and a mixed popula¬tion (M. incognita race 1 and M. javanica).
Authors
J.B. Pinheiro, J.L. de Mendonça , J.P. de Santana
Keywords
Solanum asperolanatum, Solanum stramonifolium, Solanum paniculatum, Solanum subinerme, Meloidogyne incognita race 1, Meloidogyne javanica, reproduc¬tion factor
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