Cold Hardiness in Grape Cultivar Development
DOI:
https://doi.org/10.71318/apom.1991.45.1.26Abstract
The selection process in grape breeding programs must include consideration of cold hardiness for temperate region cultivation. Traditional breeding methodology has addressed cold hardiness problems through long-term evaluation before cultivar release. Two cultivars from the University of Arkansas grape breeding program, 'Mars and 'Saturn,' differ in appearance and cold hardiness response. 'Mars' which has a Vitis labruscaL. appearance acclimated sooner and to a greater degree of hardiness than did 'Saturn' which has vine and fruit characteristics more closely resembling many V. viniferaL. cultivars. Screening advanced selections of grapes using differential thermal analysis has been incorporated at the University of Arkansas to reduce selection time.
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