Selection of genotypes of peach rootstock resistant to Meloidogyne incognita
ABSTRACT The aim of this study was to evaluate the genotypes developed by the Peach Breeding Program at the Federal University of Viçosa, as regards to resistance to M. incognita. Six rootstocks genotypes propagated by cuttings (713-07, 713-13, 913-3, 913-6, 913-11 and 913-17) and two rootstocks propagated by seeds (‘Okinawa’ and hybrid between scion cultivars Aurora 2 x Aurora 1), were evaluated. The experimental design was randomized block design with five replicates and one plant per experimental units. After establishing the plants in pot, maintained in a greenhouse, this were inoculated with 11.000 juveniles + eggs of M. incognita. Evaluations were performed at 140 days after inoculation. The roots were evaluated and the number of galls and egg mass in the roots were determined. The eggs were extracted from each plant for quantification and determination of the Reproduction Factor (RF) of the nematode. The peach genotypes 913-3, 913-6, 913-11, 913-17 and 713-7 showed an immune reaction to M. incognita. Genotype 713-13 showed susceptible reaction to M. incognita. The hybrid between scion cultivars Aurora 2 x Aurora 1 confirmed susceptible.
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Universidade Federal de Viçosa
2022
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oai:scielo:S0034-737X20220003002672022-06-08Selection of genotypes of peach rootstock resistant to Meloidogyne incognitaNunes,Lívia VieiraBuonicontro,Dalila SêniRosado,Luciana Domiciano SilvaFonseca,Andressa RodriguesBruckner,Claudio HorstSantos,Carlos Eduardo Magalhaes dos Prunus persica breeding resistance root-knot nematode ABSTRACT The aim of this study was to evaluate the genotypes developed by the Peach Breeding Program at the Federal University of Viçosa, as regards to resistance to M. incognita. Six rootstocks genotypes propagated by cuttings (713-07, 713-13, 913-3, 913-6, 913-11 and 913-17) and two rootstocks propagated by seeds (‘Okinawa’ and hybrid between scion cultivars Aurora 2 x Aurora 1), were evaluated. The experimental design was randomized block design with five replicates and one plant per experimental units. After establishing the plants in pot, maintained in a greenhouse, this were inoculated with 11.000 juveniles + eggs of M. incognita. Evaluations were performed at 140 days after inoculation. The roots were evaluated and the number of galls and egg mass in the roots were determined. The eggs were extracted from each plant for quantification and determination of the Reproduction Factor (RF) of the nematode. The peach genotypes 913-3, 913-6, 913-11, 913-17 and 713-7 showed an immune reaction to M. incognita. Genotype 713-13 showed susceptible reaction to M. incognita. The hybrid between scion cultivars Aurora 2 x Aurora 1 confirmed susceptible.info:eu-repo/semantics/openAccessUniversidade Federal de ViçosaRevista Ceres v.69 n.3 20222022-05-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2022000300267en10.1590/0034-737x202269030003 |
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Nunes,Lívia Vieira Buonicontro,Dalila Sêni Rosado,Luciana Domiciano Silva Fonseca,Andressa Rodrigues Bruckner,Claudio Horst Santos,Carlos Eduardo Magalhaes dos |
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Nunes,Lívia Vieira Buonicontro,Dalila Sêni Rosado,Luciana Domiciano Silva Fonseca,Andressa Rodrigues Bruckner,Claudio Horst Santos,Carlos Eduardo Magalhaes dos Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
author_facet |
Nunes,Lívia Vieira Buonicontro,Dalila Sêni Rosado,Luciana Domiciano Silva Fonseca,Andressa Rodrigues Bruckner,Claudio Horst Santos,Carlos Eduardo Magalhaes dos |
author_sort |
Nunes,Lívia Vieira |
title |
Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
title_short |
Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
title_full |
Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
title_fullStr |
Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
title_full_unstemmed |
Selection of genotypes of peach rootstock resistant to Meloidogyne incognita |
title_sort |
selection of genotypes of peach rootstock resistant to meloidogyne incognita |
description |
ABSTRACT The aim of this study was to evaluate the genotypes developed by the Peach Breeding Program at the Federal University of Viçosa, as regards to resistance to M. incognita. Six rootstocks genotypes propagated by cuttings (713-07, 713-13, 913-3, 913-6, 913-11 and 913-17) and two rootstocks propagated by seeds (‘Okinawa’ and hybrid between scion cultivars Aurora 2 x Aurora 1), were evaluated. The experimental design was randomized block design with five replicates and one plant per experimental units. After establishing the plants in pot, maintained in a greenhouse, this were inoculated with 11.000 juveniles + eggs of M. incognita. Evaluations were performed at 140 days after inoculation. The roots were evaluated and the number of galls and egg mass in the roots were determined. The eggs were extracted from each plant for quantification and determination of the Reproduction Factor (RF) of the nematode. The peach genotypes 913-3, 913-6, 913-11, 913-17 and 713-7 showed an immune reaction to M. incognita. Genotype 713-13 showed susceptible reaction to M. incognita. The hybrid between scion cultivars Aurora 2 x Aurora 1 confirmed susceptible. |
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Universidade Federal de Viçosa |
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2022 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2022000300267 |
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