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


Trifeola (Minneola X Poncirus trifoliata)

X Citroncirus spp. RUTACEAE


CRC 3954

PI 539846

VI 468


Photos by David Karp and Toni Siebert, CVC.10/30/2013.  Photo rights.


Source: Received as budwood from South Africa, 1985.


Parentage/origins: Citrus x tangelo 'Minneola' x Poncirus trifoliata


Rootstocks of accession: Carrizo citrange


Season of ripeness at Riverside: October to November


Notes and observations:

This is an experimental rootstock in South Africa. Information received from A.T.C. Lee, Manager, Citrus Improvement Programme, South African Co-Operative Citrus Exchange, Ltd., states: Rootstock selected by Dr. McClean at the Buffelspoort Research Station in the late 1950s/ early 1960s. It is showing promise in an experimental planting at Malelane Nursery in the Eastern Transvaal Lowveldt. This planting consists of 10 year old trees of grapefruit, navel, Ortanique, lemon, and Valencia- no incompatibilities have been observed to date. Ferdie Esselen, owner of Malelane Nursery, says that MXT germinates well and buds easily in the nursery; in the field it is very vigorous (like Minneola parent) and has not as yet shown to be susceptible to Phytophthora. Furthermore, it induces good fruit size and internal quality. (This information received in Feburary 1986).


Availability: Commercially available in California through the Citrus Clonal Protection Program.


USDA Germplasm Resources Information Network page for Trifeola




How to Support the Collection

Page created by: Center for Visual Computing
Maintained by:

UC Seal