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Prunus Cultivar: Compact Stella

Cultivar Name: Compact Stella
Type Cherry
Synonyms 'Stella 35B-11', 'Dwarf Stella', 'Stella, Compact', '2C-27-19'
Patent Not Patented
Parentage ‘Compact Stella’ (S3 S4m) (Lapins, 1975) originated as a mutant with semidwarf growth habit through 4 kR of X-rays irradiation of dormant scions of self-compatible ‘Stella’ (S3 S4m) cherry (Lapins, 1970). The irradiation was done by the Brookhaven National Laboratory, Upton, Long Island, N.Y., USA in 7964.
Species Prunus avium
Usage Scion
Fresh Market
Taste Sweet
Chill Requirement 600 chill hours required
S Genotype S3S4m
CIG Unknown
Yield High
Flesh Color dark red
Pit Semi-freestone
Ripening time +1 weeks relative to Bing
Self Compatible Yes - Self Compatible
Pollinators Compact Stella is self-fruitful and has been successfully inter-crossed with Chinook, Larmbert, Van, and nine unnamed sweet cherry selections. The average pollen stainability has been recorded as follows: Compact Stella 70%, Stella '72%, and Lambert 63%. Compact Stella’ is a universal pollinator but rejects both S3 and S4 -pollen tube growth in the style (Lapins, 1975).
Description Compact Stella was introduced by the Canada Agricultural Research Station, Summerland, British Columbia about 1973. The selection, Stella 35B-11, was selected at Summerland in 1966 and was tested in the Summerland orchards during the late 1960's to early 1970's. The trees had a dwarfing height and annual heavy crops. 1980, Robert A. Norton brought the Compact Stella to Washington State University to observe during the '80's. The cultivar was then cleaned of virus but found Little Cherry Virus in plants that remained dwarf. Washington nurserymen continued to seek a heavy production cultivar without a virus. About 1988, the L. E. Cooke Co received budwood from an eastern Washington nursery, a personal friend. L.E. Cooke's first trees grew differently but two were very compact and had heavy production. L.E. Cooke sent budwood from these dwarf trees back to USDA to certify virus clean. Sets fruit young with heavy, consistent crops. Compact Stella has been a major seller in the mild winter areas. Hard in Zones 5-9. Reversion to standard tree form occurs readily so strict pruning is required to maintain a compact form. The fruit is resistant to cracking and doubling and appears to be less affected by many problems associate with rain near harvest time compared to other cultivars. It is self fertile, medium-large, heart-shaped dark red fruit, firm, sweet dark red flesh with good flavor and texture. The tree is a small grower but still out-produces regular Stella and many other cultivars. Genetic dwarf tree grow 7-9' tall, 40-60% of standard size. The tree fruits a little later than Stella.