Horticultura Brasileira (2010) 28, 120-123

Silvia Renata S. Wilcken, Juliana M.O. Rosa, Andréa R.O. Higuti, Maria José de M. Garcia and Antonio Ismael Inácio Cardoso (2010)
Reprodução de Meloidogyne spp. em porta-enxertos e híbridos de pepino
[Reproduction of Meloidogyne spp. in rootstocks and cucumber hybrids]
Horticultura Brasileira 28 (1), 120-123
Abstract: Grafting is an alternative technique often recommended for the cucumber crop in root-knot nematodes infested areas. This study aimed to determine the reproduction factor of Meloidogyne javanica and M. incognita race 2 on six rootstocks for cucumber (squash 'Menina Brasileira, pumpkim 'Exposição', 'Shelper', 'Tetsukabuto', 'B8-A Tetsukabuto' and 'Excite Ikki') and four cucumber (Cucumis sativus) Japanese type hybrids of ('Yoshinari', 'Kouki', 'Taisho' and 'Tsuyataro'). Two experiments were carried out in greenhouse, each one with a nematode specie. Each plot consisted of one plant per pot containing 2 liters of autoclaved soil. Nine days after the seedlings transplantation, each plant was inoculated with 5,000 eggs and second-stage juveniles (initial population - Pi) of M. javanica or M. incognita race 2. 'Rutgers' tomatoes were used as a standard for inoculum viability in both experiments. The experimental design was completely randomized with five replicates per treatment. Sixty days after inoculated, each plant was evaluated, when root fresh weight, total number of nematodes in the soil and in the roots (final population - Pf), nematodes number per gram of root and the reproduction factor of both Meloidogyne species (FR=Pf/Pi) were determined. All rootstocks and cucumber hybrids allowed the M. javanica and M. incognita race 2 multiplication, but, generally, reproduction factor values were greater in cucumbers than in rootstocks.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne javanica	Cucumber (Cucumis sativus)
	Meloidogyne incognita	Cucumber (Cucumis sativus)