X Citroncirus sp. RUTACEAE
Citrus sinensis 'Washington' sweet orange X Poncirus trifoliata
Photos by David Karp and Toni Siebert, CVC. Photo rights.
Source: Received as budwood from W.T. Swingle, USDA, 1924.
Parentage/origins: Citrus sinensis 'Washington' x Poncirus trifoliata. Open pollinated seedling.
Rootstocks of accession: Carrizo citrange, C-35 citrange
Season of ripeness at Riverside: December to January
Notes and observations:
HJ Webber: When I visited the tree of this in Field 8A with Swingle on 12/04/34, he was much pleased with its vigor and numerous plump seeds and told me to put down the name Troyer for it as the first fruits came to him from a Mr. Troyer at Fairhope, Alabama. It thus becomes the Troyer citrange and I will describe it under that name in my Variety manuscript.
Description from The Citrus Industry Vol. 1 (1967):
Fruit small, oblate to spherical; smooth and nearly glabrous; color light orange. Rind medium-thick, with numerous oil glands; tightly adherent. Segments 9 to 10 and axis solid. Flesh color light yellow; juicy; flavor strongly acid and bitter. Seeds numerous, plump, and highly polyembryonic. Season of maturity early.
Availability: Commercially available in California through the Citrus Clonal Protection Program.
E. M. Savage and F. E. Gardner. "THE ORIGIN AND HISTORY OF TROYER AND CARRIZO CITRANGES". The Citrus Industry. February 1965.
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