Malus Taxa, selected in Hungary, as new Gene sources of resistance to apple scab (Venturia inaequalis Cke./Wint.)

M. Tóth, J. Halász, A. Pedryc, S. Kovács

Research output: Contribution to journalArticle

Abstract

To find new genetic resources of apple breeding for multiple resistance scab and powdery mildew of Malus taxa available in Hungary and the progenies of Malus floribunda MBA-01 were analysed in greenhouse and under field conditions. Tree habit and growth vigour of the promising genotypes were observed, as well as productivity and fruit characteristics were analysed. Molecular marker analysis for Vf gene of the promising species and hybrids were also carried out. After evaluation of Malus taxa, three new scab resistant genotypes were selected including Malus fusca, Malus x spectabilis 'van Eseltine', and the seedling of Malus halliana. In addition, new local clones of Malus floribunda, an individual of Malus x zumi and four hybrids of Malus floribunda MBA-01 progenies were selected as new scab resistant gene sources, which are also resistant to powdery mildew. The scab resistant local individual of Malus floribunda (MBA-01) characterized by the VfVf homozygote genotype, while Malus fusca had the heterozygote genotype. Malus x zumi and the selected seedling of Malus halliana showed scab resistance under field and greenhouse conditions as well, but their resistance is not based on the Vf allele. Growing, morphological, and pomological characteristics of the selected Malus taxa and hybrids are also demonstrated.

Original languageEnglish
Pages (from-to)851-856
Number of pages6
JournalActa Horticulturae
Volume814
Publication statusPublished - Mar 20 2009

Fingerprint

Venturia inaequalis
Malus
Hungary
Malus floribunda
genes
genotype
powdery mildew
greenhouses
seedlings
homozygosity
genetic resources
vigor
heterozygosity
apples
clones
alleles
genetic markers
fruits
breeding

Keywords

  • Fruit morfology
  • Growth vigour
  • Malus
  • Molecular marker analysis
  • Tree habit
  • Vf gene

ASJC Scopus subject areas

  • Horticulture

Cite this

Malus Taxa, selected in Hungary, as new Gene sources of resistance to apple scab (Venturia inaequalis Cke./Wint.). / Tóth, M.; Halász, J.; Pedryc, A.; Kovács, S.

In: Acta Horticulturae, Vol. 814, 20.03.2009, p. 851-856.

Research output: Contribution to journalArticle

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