Genetics and histology of powdery mildew resistance in apple |
| |
Authors: | S S Korban S E Riemer |
| |
Institution: | (1) Department of Horticulture, University of Illinois, 61801 Urbana, IL, USA |
| |
Abstract: | Summary 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. |
| |
Keywords: | Malus X domestica apple Podosphaera leucotricha powdery mildew inheritance disease resistance fruit breeding |
本文献已被 SpringerLink 等数据库收录! |
|