Assertion: black currant's variety | /r/CapableOf | improve nutritional content
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Source sentences:
text: The cultivars 'Ben Connan', 'Ben Lomond' and 'Ben Sarek' have gained the Royal Horticultural Society's Award of Garden Merit. and new varieties are being developed continually to improve frost tolerance, disease resistance, machine harvesting, fruit quality, nutritional content and fruit flavour.