Grapevine Cv. ‘Sugranineteen’

Details Grapevine Cv. ‘Sugranineteen’ Grapevine Cv. ‘Sugranineteen’

2001-01-25

2003-08-26

Campell, Bruce R. (Department: 1661)

Plants

Fruit

Grape

Plant Patent

active

PP014088

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. ‘Sugranineteen.’ 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 crisp, juicy, large, elliptical berries that attain a naturally red color even in deep shade. The berries ripen late and do not require exogenous gibberellic acid application to obtain acceptable commercial size.
The seed parent of the new ‘Sugranineteen’ variety is the ‘Sun World Seedling 89345-090-144’ and the pollen parent is the ‘Sun World Seedling 89361-091-364’. ‘Sugranineteen’ resembles ‘89345-090-144’ in color, shape, and firmness. It differs from ‘89345-090-144’ by having larger berries, and containing smaller seed traces. ‘Sugranineteen’ resembles ‘89361-091-364’ in color, and differs from ‘89361-091-364’ by having larger berries that are ovate rather than spherical. The parent varieties were first crossed in May, 1993, with the date of first flowering being May, 1996. The new ‘Sugranineteen’ variety was first asexually propagated by David W. Cain in December, 1996 near Wasco, Kern County, Calif., using hardwood cuttings.
The new grapevine variety cv. ‘Sugranineteen’ is distinguished from other commonly grown red seedless grapes such as the ‘Emperor’ (unpatented), ‘Crimson’ (unpatented), ‘Flame Seedless’ (unpatented), and ‘Ralli Seedless’ (U.S. Plant Pat. No. 9,865) by possessing late ripening elliptical berries that are naturally red. The new grapevine variety cv. ‘Sugranineteen’ most nearly resembles the ‘Emperor’ variety. It is distinguished from the ‘Emperor’ variety by producing soft, abortive, vestigial seed traces as opposed to the hard, fully developed seeds found in the ‘Emperor’ variety. ‘Sugranineteen’ also ripens approximately one month earlier than the ‘Emperor’ variety.
The new ‘Sugranineteen’ variety resembles the ‘Crimson’ (unpatented) grapevine variety but differs from ‘Crimson’ by producing larger and softer berries which are more nearly oval in shape. Moreover, ‘Sugranineteen’ berries develop a commercially acceptable red color under deep shade conditions as compared to the ‘Crimson’ variety which colors with difficulty.
‘Sugranineteen’ variety produces more elliptical berries as compared to the oval berries produced by ‘Ralli Seedless’. ‘Sugranineteen’ has the ability to ripen approximately 7 weeks later than ‘Ralli Seedless’. It also differs from ‘Ralli Seedless’ in that the berries have a higher sugar level, and can obtain a dark red color under warm conditions.
The new ‘Sugranineteen’ variety is distinguished from the ‘Flame Seedless’ variety by having larger, more elliptical berries as compared to the rounder berries of the ‘Flame Seedless’ variety. It is also distinguished from the ‘Flame Seedless’ variety in that it ripens approximately eight weeks later.
The new ‘Sugranineteen’ variety has been shown to maintain its distinguishing characteristics through successive asexual propagations by, for example, cuttings.


REFERENCES:
patent: PP9865 (1997-04-01), Ralli et al.

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