Plum tree named ‘Suplumtwentytwo’

Details Plum tree named ‘Suplumtwentytwo’ Plum tree named ‘Suplumtwentytwo’

2001-02-26

2002-11-05

Campell, Bruce R. (Department: 1661)

Plants

Fruit

Stone fruit tree

Plant Patent

active

PP013171

ABSTRACT:

LATIN NAME
Prunus salicina.
VARIETY
‘Suplumtwentytwo.’
BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates to the discovery and asexual propagation of a new variety of plum,
Prunus salicina
cv. ‘Suplumtwentytwo.’ The new variety was first hybridized by Bruce D. Mowrey and selected and evaluated by David W. Cain near Wasco, Kern County, Calif., the variety being originated by open pollination of an unnamed, unpatented Sun World plum selection, designated as 91P-001. The new variety is characterized by its very early-ripening fruit with a mildly sweet taste. The fruit flesh is pale yellow near the pit cavity and red throughout the rest of the flesh which darkens with ripening. The fruit is not prone to fruit drop and has good keeping quality for the fresh market.
‘Suplumtwentytwo’ has as its seed parent an unnamed, unpatented plum variety designated as 91P-001. The pollen parent is unknown, as the new plum variety cv. ‘Suplumtwentytwo’ arose from an open-pollination of the seed parent. The parent varieties were first crossed in 1993, with the date of sowing November 1993 and the first flowering being 1996. The new ‘Suplumtwentytwo’ varety was first asexually propagated by David W. Cain in May 1998, near Wasco, Kern County, Calif., by budding onto ‘Flordaguard’ rootstock.
The new variety ‘Suplumtwentytwo’ is distinguished from its seed parent 91P-001 by producing dark red firm flesh, in contrast to the yellow flesh of the seed parent 91P-001 which becomes red only when the fruit becomes very softly ripe. The surface of the new variety is smooth in contrast to the corrugated surface of 91P-001. ‘Suplumtwentytwo’ further differs from its seed parent by having slightly larger fruit, averaging about 6 cm in diameter compared with an average diameter of 5.5 cm for 91P-001. ‘Suplumtwentytwo’ ripens approximately 10 days before 91P-001.
The new plum variety cv ‘Suplumtwentytwo’ most nearly resembles the interspecific tree ‘Flavorosa’ variety (U.S. Plant Pat. No. 10,285). It is distinguished from ‘Flavorosa’ by possessing fruits having flesh that is generally more pale yellow when commercially ripe, with a lighter red coloration near the pit cavity in contrast to the darker coloration at the pit cavity of the ‘Flavorosa’ variety. The fruit of ‘Suplumtwentytwo’ hold more tenaciously to the tree and are not as prone to fruit drop as the fruit approach maturity, in comparision with the ‘Flavorosa’ variety. ‘Suplumtwentytwo’ possesses smaller size leaves having a more rounded, elliptic, and less pronounced pointed lanceolate apex as opposed to the ‘Flavorosa’ variety. The new variety ‘Suplumtwentytwo’ is further distinguished from the ‘Flavorosa’ in not being an interspecific hybrid having
Prunus armeniaca
in its parentage.
The new plum variety cv. ‘Suplumtwentytwo’ ripens at approximately the same time as ‘Red Beaut’ (U.S. Plant Pat. No. 2,539, expired) but differs from ‘Red Beaut’ by producing black-skinned fruit with red flesh and an oblate shape, as compared with the red-skinned fruit, yellow flesh, and ovate shape of the ‘Red Beaut’ variety.
The new plum variety cv. ‘Suplumtwentytwo’ variety has been shown to maintain its distinguishing characteristics through successive asexual propagations by, for example, budding.

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