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Citrus ID

 

Armstrong

 

Synonyms

 

Armstrong Seedless Valencia, Mohn (sec. Hodgson 1967)

Cultivar or Taxon

 

Citrus reticulata Blanco [Satsuma Group] (sensu Swingle and Reece 1967, Mabberley 1997); Citrus unshiu Marcov. (sensu Hodgson 1967)

Origin

 

Hodgson (1967) noted that: "The parent budded tree was found about 1928 in the orchard of Pearl C. Mohn at Anaheim, California. The new variety was patented in 1935 (Patent No. 124) and was introduced by the Armstrong Nurseries of Ontario in 1939."

Description

 

Crown compact or dense, not weeping. First year twig surface glabrous; second or third year twig surface striate; thorns absent or not persistent; prickles absent or not persistent. Petiole glabrous, length medium length, wings narrow, adjoining the blade. Leaflets one, margin bluntly toothed, shade leaflet blades weakly conduplicate, sun leaflet blades weakly conduplicate. Leaflets mandarin-like when crushed. Fruit broader than long, rind yellow (7-10), yellow-orange (11), orange (12) or red-orange (13), rind texture slightly rough (4-5), firmness leathery, navel absent, flesh orange, taste acidic-sweet.

Notes

 

Hodgson (1967) additionally indicates that: "Presumably a bud variation of Valencia, Armstrong is a Californian variety indistinguishable from the parent except that the fruit is virtually seedless (very occasionally a seed)....It has not achieved much importance, presumably because the parent variety is so nearly seedless (none to five or six seeds)."

References

 

Cottin, R. 2002. Citrus of the World: A citrus directory. Version 2.0. France: SRA INRA-CIRAD.

Hodgson, R.W. 1967. Horticultural varieties of Citrus. In: Reuther, W., H.J. Webber, and L.D. Batchelor (eds.). The Citrus industry, rev. University of California Press. http://lib.ucr.edu/agnic/webber/Vol1/Chapter4.html.

Mabberley, D.J. 1997. A classification for edible Citrus (Rutaceae). Telopea 7: 167–172.

Resources

 

Search for this cultivar in NPGS/GRIN1

Search for this cultivar in NCBI2 Entrez

Additional information on this cultivar at University of California: Riverside Citrus Variety Collection

1GRIN: Germplasm Resources Information Network; NPGS: National Plant Germplasm System

2NCBI: National Center for Biotechnology Information

 

Citrus ID Edition 2
October, 2011
idtools.org