University of California, Riverside
College of Natural and Agricultural Sciences
UCR Citrus Variety Collection - Home
UCR Home UCR Web Sites


Skaggs Bonanza navel orange

Citrus sinensis (L.) Osbeck


CRC 3971

PI 539579

VI 515



Photos by Toni Siebert and David Karp, 2/25/2010, CVC. Photo rights.


Source: Received as budwood from from Willits & Newcomb, 1988.


Parentage/origins: Bonanza or Skaggs Bonanza navel orange (VI 515) is a bud sport found by John Walker in the orchard of Mr. Skaggs of Lindsay, CA. 


Rootstocks of accession: Carrizo citrange


Season of ripeness at Riverside: November to January


Notes and observations:

EMN, 1985: Donated trees were planted in the Navel Strain Trial at Lindcove in 1976. Budwood from Navel Strains 3-6 brought to Riverside for entering into CCPP as a VI and for variety collection. Informed by Lamar Timmons that plant patent expired in 1987. See Dec. 1985 Citrograph for comparison of Skaggs Bonanza and other navels in the Lindcove Navel Strain trial.

EMN, 11/1989: Was entered as VI 481 in fall 1988. Found to have mild citron viroid. Scheduled to go back thru STG & be re-entered.


Bonanza reaches color break about two weeks earlier than Washington navel and an 8:1 solids to acid ratio about a week earlier on average than Washington navel (Nauer et. al.1985). Bonanza also reaches color break ahead of Fisher navel, but it reaches an 8:1 solids to acid ratio after Fisher during most seasons. The Bonanza fruit has good size and a very thin rind compared to Washington, Newhall, Fisher and Lane Late navel oranges. In addition, the fruit of Bonanza tends to drop earlier in the season than the other selections listed above, so they need to be harvested early in the season.

Availability: Commercially available in California through the Citrus Clonal Protection Program. Click here to order budwood.

USDA Germplasm Resources Information Network page for Skaggs Bonanza navel orange





How to Support the Collection

Page created by: Center for Visual Computing
Maintained by:

UC Seal