ISHS Acta Horticulturae 439: III International Strawberry Symposium
CLASSIFICATION OF 92 STRAWBERRY GENOTYPES BASED ON THEIR LEAF ESSENTIAL OIL COMPOSITION |
| Authors: | S. Khanizadeh, A. Bélanger |
| Keywords: | Fragaria x ananassa, pest and disease resistance |
| DOI: | 10.17660/ActaHortic.1997.439.29 |
| Abstract:
A great deal of work has been done on the inherent resistance of genotypes to two-spotted spider mite and some specific diseases like leaf spot, leaf scorch, and red stele. These are the most important pests and diseases of strawberry in Quebec. Chemical composition of leaves is among the most important factors that may affect plant susceptibility or resistant to pests and diseases. The purpose of our research was to compare the natural concentration of leaf essential oils (EOs) of 92 strawberry genotypes and construct a table of pest and disease susceptibility and plant and fruit characteristics in an attempt to correlate them to the concentration of leaf EOs. The cultivars and selections used in our study were chosen from a wide range of breeding lines and programs, including Belgium, Canada, Denmark, England, France, Italy, New Zealand, Scotland, The Netherlands and USA, and four wild species. Four major clusters were produced, based on the leaf EOs composition. Two Fragaria chiloensis (accession numbers 590 and 859) and F. viridis created their own cluster and were resistant to spider mites and leaf diseases. Fragaria virginiana created its own group, being completely different from the rest. | |
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