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<p>The host response of fifteen winter squash (<italic>Cucurbita maxima</italic>) and five pumpkin (<italic>Cucurbita moschata</italic>) dihaploid genotypes to <italic>Meloidogyne arenaria, M. incognita, M. javanica</italic>, and <italic>M. luci</italic> was screened in pot experiments. Root galling and nematode reproduction were detected in all combinations of plant genotype and nematode species. Ten genotypes of <italic>C. maxima</italic> and three genotypes of <italic>C. moschata</italic> were considered highly resistant (&lt;10% of the susceptible genotype) or moderately resistant (&lt;50% of the susceptible genotype) to one or more <italic>Meloidogyne</italic> species based on nematode reproduction as a percentage of the most susceptible genotype. Genotypes 55CA15-A3 and G14-IP1 of <italic>C. maxima</italic> were highly resistant to <italic>M. luci</italic> and <italic>M. arenaria</italic>, respectively. Both 14BO01-O2 and G9-A4 genotypes of <italic>C. moschata</italic> were considered highly resistant to <italic>M. arenaria</italic>. However, these genotypes still allowed significant nematode reproduction because egg number per plant was higher than initial number of eggs used as inoculum, indicating that all genotypes were hosts.</p>
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The host response of fifteen winter squash (Cucurbita maxima) and five pumpkin (Cucurbita moschata) dihaploid genotypes to Meloidogyne arenaria, M. incognita, M. javanica, and M. luci was screened in pot experiments. Root galling and nematode reproduction were detected in all combinations of plant genotype and nematode species. Ten genotypes of C. maxima and three genotypes of C. moschata were considered highly resistant (<10% of the susceptible genotype) or moderately resistant (<50% of the susceptible genotype) to one or more Meloidogyne species based on nematode reproduction as a percentage of the most susceptible genotype. Genotypes 55CA15-A3 and G14-IP1 of C. maxima were highly resistant to M. luci and M. arenaria, respectively. Both 14BO01-O2 and G9-A4 genotypes of C. moschata were considered highly resistant to M. arenaria. However, these genotypes still allowed significant nematode reproduction because egg number per plant was higher than initial number of eggs used as inoculum, indicating that all genotypes were hosts.

Screening of <italic>Cucurbita maxima and Cucurbita moschata</italic> Genotypes for Resistance Against <italic>Meloidogyne arenaria, M. incognita, M. javanica</italic>, and <italic>M. luci</italic>


Journal of Nematology

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Screening of  Genotypes for Resistance Against , and 


running-head

The host response of fifteen winter squash (Cucurbita maxima) and five pumpkin (Cucurbita moschata) dihaploid genotypes to Meloidogyne arenaria, M. incognita,...

Screening of Cucurbita maxima and Cucurbita moschata Genotypes for Resistance Against Meloidogyne arenaria, M. incognita, M. javanica, and M. luci

Article Category: Arts & Humanities

Published Online: Sep 17, 2019

Page range: 1 - 10

Received: Jan 25, 2019

DOI: https://doi.org/10.21307/jofnem-2019-057

© 2019 Gökhan Aydınlı et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.