valiant

Synonymes

SD7121, S.D.72S15

Description de l'arbre

Vigorous and productive. Letting it over-crop when young may retard its maturity. Daylight sensitive, it typically goes dormant around September 1st in Minnesota.

Description du fruit

Black , Small and round; blue slipskin. Cluster is small and compact. Average cluster length is 4 inches.

Maladies, parasites et ravageurs

Susceptible to mildews.

Avantages

Very hardy. Has withstood -50° F in Manitoba, Canada and was not
harmed. Does best in a dry climate.

Inconvénients

In moist climates, ‘Valiant’ is more susceptible to diseases.

Origine de la variété (obtenteur, origine géographique pour les variétés locales...)

Pedigree: ‘Fredonia’ x S.D. 9-39 (V. riparia from NE Montana)

Origin: Brookings, South Dakota. Bred by R.M. Peterson; South Dakota State University.

Cross/Selection/Introduction: Cross made in 1967; selected in 1972; tested as SD7121 or S.D.72S15 1982.

Complément d'informations

Periode de fructification : Août - Septembre -

Bibliographie

http://viticulture.hort.iastate.edu/cultivars/Valiant.pdf

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