Moro blood orange
Citrus sinensis (L.) Osbeck
Photos by Toni Siebert and David Karp, 3/17/2010, CVC. Photo rights.
Source: Received as seed from a seedling budline grown by W.P. Bitters at CRC, date unknown.
Parentage/origins: Parents unknown.
Rootstocks of accession: Carrizo citrange, C-35 citrange
Season of ripeness at Riverside: December to February
Notes and observations:
EMN, 2/4/1988: This accession appears identical to CRC 3830 Moro. See notes this date on back of CRC 3152 & 3830 accession cards.
OJB: The tree is of moderate vigor and size with a round and somewhat spreading growth habit. The fruit is round, of moderate size, and frequently borne in clusters. The orange-colored peel is commonly blushed with a burgundy color. Moro is the most highly-colored of the blood oranges, owing its distinctive flesh color and rind blush to the presence of anthocyanin, the same pigment that colors purple grapes. Moro is also the earliest ripening of the blood oranges and is usually mature at Riverside in January. The fruit is usually low-seeded with a flesh that can become very dark red late in the season. The fruit holds well on the tree, but develops an off-flavor if held too long. The color and flavor develop best in the warm inland valleys.
Description from The Citrus Industry Vol. 1 (1967):
"Moro blood orange is the most common of the pigmented oranges marketed in the United States. It is of relatively recent origin and is believed to be of Sicilian ancestry. Fruit medium to medium-large, subglobose, round or obovoid; base somewhat furrowed; apex commonly flattened; areole faint or lacking; seeds few or none, but with chalazal spot purplish-red. Rind medium-thick, moderately adherent, and somewhat pebbled. Orange-colored at maturity with light pink blush or red streaks at advanced maturity. Flesh deeply pigmented (almost violet-red); juicy; flavor pleasant. Very early in maturity (earliest of the commercial blood oranges), but holds well on the tree and stores and ships well. A distinctive aroma develops with advanced maturity, but flavor deteriorates if held too long in storage and becomes objectionable to some.
Availability: Not commercially available through the Citrus Clonal Protection Program.
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