Australian nucellar navel orange
Citrus sinensis (L.) Osbeck
Photos by David Karp and Toni Siebert, 2/25/2010, CVC. Photo rights.
Source: Received as seed from Renmark, South Australia, 2001.
Parentage/origins: Seed from trees at Agricultural Research and Advisory Station, Dareton, contributed to Toots Bier via Ian Tolley.
Rootstocks of accession: Carrizo citrange
Season of ripeness at Riverside: December to January
Notes and observations:
RRK, 8/2007: Nucellar seedling (RSD2001061SG001 = RRUT 101) selected using ISSR markers (2003). This was one of two seed lots received from Ian Tolley with the hope of establishing accessions of old, historical varieties for which propagative material could not be secured in the USA.
"In general, the fruits are smaller than Washington, flatter in form, and sometimes broadly pointed at the apex. The navel is smaller and more deeply embedded, and the rind is thicker and rougher. The flesh is softer in texture and commonly juicier than Washington, and the season of maturity is considerably later, the flavor remaining tart until late in the season...The origin of this type of navel orange is obscure, but it is known to have gone from Brazil to Australia, from whence it was probably taken to California and South Africa. It may have originated in Brazil, as did the Washington variety, but it seems more likely to have been taken to Brazil from Portugal where a navel orange variety has long existed (Risso and Poiteau, 1818-22)." (Hodgson, 1967)
Availability: Not commercially available in California.
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