Plants – Fruit – Grape
Plant Patent
2001-01-25
2002-11-12
Campell, Bruce R. (Department: 1661)
Plants
Fruit
Grape
Plant Patent
active
PP013199
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates to the discovery and asexual propagation of a new variety of grapevine,
Vitis vinifera
cv. ‘Sugraseventeen’. The new variety was first hybridized by David W. Cain in Wasco, Kern County, Calif., the variety being originated by controlled hybridization and subsequent ovule culture of normally abortive seeds. The new variety is characterized by producing medium firm red seedless berries of medium size which ripen very late. The new variety tolerates rain and adverse weather conditions better than other available late red seedless varieties.
The seed parent is the (unpatented) ‘Emperor’ variety and the pollen parent is the (unpatented) ‘Ruby Seedless’ variety. The parent varieties were first crossed in May, 1987, with the date of first flowering being May, 1990. The new ‘Sugraseventeen’ variety was first asexually propagated by David W. Cain in December, 1990 in Wasco, Kern County, Calif., using dormant cuttings.
The new grapevine variety cv. ‘Sugraseventeen’ resembles its seed parent the ‘Emperor’ variety, in that it produces late ripening red berries which tolerate rain and adverse weather. It differs from the ‘Emperor’ variety in that the berries contain abortive seed remnants which are tiny and softer than seeds of the ‘Emperor’ variety. It differs from the pollen parent, the ‘Ruby Seedless’ variety by producing more rounded berries that ripen later.
‘Sugraseventeen’ is distinguished from other commonly grown red seedless grapes such as the ‘Crimson Seedless’ variety (nonpatented) and the ‘3-14-71’ variety (U.S. Plant Pat. No. 8,297). ‘Sugraseventeen’ is distinguished from the Crimson Seedless variety by producing more rounded, softer berries in larger clusters which are more rain tolerant.
‘Sugraseventeen’ differs from the ‘3-14-71’ variety by producing rounder, softer berries. ‘Sugraseventeen’ clusters are also larger, averaging
728 grams as compared to
446 grams in the ‘
3-14-17’ variety. Additionally, the young shoots of ‘Sugraseventeen’ are more pubescent than the young shoots of the ‘3-14-17’ variety.
The new ‘Sugraseventeen’ variety has been shown to maintain its distinguishing characteristics through successive asexual propagations by, for example, cuttings.
REFERENCES:
patent: PP8297 (1993-07-01), Olmo
Campell Bruce R.
Kizilkaya Michelle
Knobbe Martens Olson & Bear
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