Evaluation of fruit tree genetic resources as sources of polygenic scab resistance in an apple breeding programme
- Lateur, M. , Wagemans, C. & Populer, C. (1999). Evaluation of fruit tree genetic resources as sources of polygenic scab resistance in an apple breeding programme. Acta Horticulturae, (No. 484),
Type | Journal Article |
Year | 1999 |
Title | Evaluation of fruit tree genetic resources as sources of polygenic scab resistance in an apple breeding programme |
Journal | Acta Horticulturae |
Recnumber | 72 |
Issue | No. 484 |
Endnote Keywords | apples|plant pathogens|plant pathogenic fungi|plant diseases|disease resistance|varietal reactions|breeding|evaluation|genetics|genes|fruit crops|plant pathology|Nectria galligen|Hypocreaceae| |
Abstract | Data are presented on a new research project aimed at assessing new cultivars with presumed polygenic scab resistance as parent material in breeding work. Old cultivars combining moderate susceptibility to scab (Venturia inaequalis) and, where possible, to powdery mildew (Podosphaera leucotricha) and canker (Nectria galligena), with desirable pomological characters were selected for use as parents and crossed with each other, or with modern commercial cultivars or with cultivars carrying the Vf gene. In the latter case, the aim was to improve the durability of the Vf scab resistance. In crosses involving only parents with moderate resistance to scab in the field, presumed to be under polygenic control, the percentage of seedlings emerging from the greenhouse scab inoculation tests varied from 10 to 48% according to the parent combinations. The greenhouse scab inoculation test, adapted to the evaluation of seedlings with quantitative resistance, has produced results in accordance with subsequent field behaviour. |
Notes | Cited Reference Count: 27 ref. Conference paper, Journal article English |
Author address | Station de Phytopathologie de l'Etat, Centre de Recherches Agronomiques, Chemin de Liroux, B-5030 Gembloux, Belgium. |
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Authors | Lateur, M., Wagemans, C., Populer, C. |