Muriel
Derousseaux
Evaluation
of susceptibility to leaf and fruit diseases of strawberry cultivars
during breeding
Muriel
Derousseaux is doing a nine-week internship at Agriculture
and Agri-Food Canada ’s Horticulture Research and
Development Centre (HRDC) in St-Jean-sur-Richelieu, where
she is serving on the small fruit breeding and physiology
team. Muriel is working toward an engineering degree in
agronomy and plant production at the Ecole Nationale des
Ingénieurs en Techniques Agricoles (ENITA
Clermont-Ferrand) in France.
Summary of
objectives and work done:
Strawberries are susceptible to many diseases, some of
which affect the plants growing in the field and some
fruit held in storage. These diseases cause severe damage
to strawberries and result in yield losses. Disease
resistance is therefore a criterion used in the selection
of cultivars.
The goal of the study was to compare known cultivars with
new selections in terms of their relative susceptibility
to foliar diseases (leaf scorch, leaf spot, leaf blight)
and to fruit diseases (Botrytis cinerea, Rhizopus and
Penicillium). The general appearance of the strawberries
in storage was monitored to determine whether fruit
appearance and disease incidence are correlated.
In addition, the antioxidant content of the fruit will be
measured next winter, because previous studies have
suggested that there is a positive correlation between the
levels of antioxidants in strawberries and their
resistance to fungal diseases.
Address :
Muriel Derousseaux
ENITA Clermont-Ferrand
Site de Marmihlat,
63370 Lempdes
France
Professor:
Christian Perrier
The person in charge of the training course:
Shahrokh Khanizadeh
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