Genetics and histology of powdery mildew resistance in apple

S. S. Korban, S. E. Riemer

Research output: Contribution to journalArticle

Abstract

Eight scab-resistant cultivars and selections along with eight commercial apple cultivars were evaluated for powdery mildew resistance in greenhouse and nursery tests. 'Dayton', 'Liberty', Delicious' and 'Tolman Sweet' were rated moderately resistant to infection in both greenhouse and nursery tests. Segregation of seedlings among 14 progenies for mildew reaction indicated that mildew resistance is polygenically controlled in this material with additive gene effects. Recovery of mildew resistant seedlings from crosses involving a scab-resistant parent(s) suggested that this material can be useful in developing scab- and mildew-resistant apple cultivars. Histological investigations were conducted to describe mildew symptoms of infected leaves.

Original languageEnglish (US)
Pages (from-to)261-267
Number of pages7
JournalEuphytica
Volume48
Issue number3
DOIs
StatePublished - Jul 1 1990

Keywords

  • apple
  • disease resistance
  • fruit breeding
  • inheritance
  • Malus X domestica
  • Podosphaera leucotricha
  • powdery mildew

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science
  • Horticulture

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