Citrus sinensis (L.) Osbeck RUTACEAE

CRC 3982
PI 539644
VI 495 (No longer available)

Source

Received as budwood from China, 1987.

Parentage/origins

Parents unknown.

Rootstocks of accession

Carrizo citrange

Season of ripeness at Riverside

January to March

Notes and observations

1/1989, EMN: Two other imports from China with names beginning with "X" are sweet oranges; let's take a wild guess and house this one under SWT also.

6/1989, EMN: Original USDA spec. list does say this is C. sinensis. Also says it is "high total soluble solids", and that's all, folks.

8/1989, EMN: Additional info re Xianfengcheng received from Dr. Bitters this month: Sometimes called "Pioneer orange or S20". As a famous sweet orange variety, it has been cultivated for decades in Sichuan Province, the largest citrus producer in PRC. It oringinated as a seedling in Jiangjin County near Chongqing City and was selected by Dr. W. Zhang in early 1930s. Fruit medium sized (wt. 150 to 180 gr. per fruit), obovate to ovale, high total soluble solids, 6.5 seeds per fruit; Ripens at end of Nov. & early Dec. They store it until May. I ate some in May- looked like just off the tree- how do they do that with no controlled storage? Sometimes also called Goose-egg orange.

Availability

No longer commercially available in California. This accession no longer has an approved budsource. Please refer to the CCPP for information on another approved budsource or to start a reintroduction inquiry.

USDA Germplasm Resources Information Network page for Xianfengcheng sweet orange