Volume 45 Number 1 Article 6
Year 1991 Month 1
Title: Comparison of 'Cabernet Sauvignon' and 'Cabernet franc' Grapevine Dormant Bud Cold Hardiness
Authors: T.K. Wolf and M.K. Cook
Abstract:
Cold hardiness of 'Cabernet Sauvignon' (CS)
and 'Cabernet franc' (CF) dormant buds was
compared during two winters by thermal analysis
of bud freezing events.
The vines were of
the same age and planted in adjacent blocks of
a northern Virginia vineyard.
CF buds were
typically one to two degrees (C) hardier than
CS buds except in spring, when CF buds deacclimated
more rapidly than CS buds.
The
general pattern of superior cold hardiness of
CF buds is consistent with limited grower experience
with whole-vine responses of these two
Vilis vinifera cultivars to low temperature stress
in the field.
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