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UF 20    Theobroma cacao

 Bartley, B.G.D. (1995)
Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.

Derivation: United Fruit selections.
Collected by UF company.
Location: Limon, Almirante, Costa Rica.

Notes:  Selections from the Atlantic coast made in the 1930's.

Bartley, 1998a [BAR98A] The UF series were selected from MATINA material and from material from Ecuador (pers. comm. Soria).
 

Synonyms: UFC 20, UFCO 20

Bartley, 1997b [BAR97B] Possibly the same as CC 120.

 HELD IN

List received in 2012   Reference
• Accession: 289
   - Local Name: UF 20
   - Year of Accession: 1978
List received in 2018   Reference
• Accession: 10536
   - Local Name: UF-20
   - Year of Accession: 1952

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Susceptible, 100.00 % Infection
Note: External Severety = 4.0 and Internal Severety = 4.6
 Phillips, W., 1997
Susceptible, 100.00 % Infection
Note: External Severety = 4.4 and Internal Severety = 5.0
 Phillips, W., 1996
Susceptible, sp. P. palmivora (Pod).
 Phillips, W., 1997

Seed Index: 75.1 (dried beans per 100g)
Productivity: medium
 Reference

Colour Dark Purple: Absent
Colour Light Purple: Present
Colour Grey: Absent
Colour White: Absent
Colour Mottled: Absent
Number: 34.8
Maximum Number: 48
Cotyledon Wet Weight: 2.19 g
Cotyledon Dry Weight: 1.33 g
Cotyledon Length: 24.1 mm
Cotyledon Width: 14.2 mm
Cotyledon Thickness: 9.1 mm
 Reference

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Rugosity: intense
 Reference
Basal Constriction: slight
Apex Form: obtuse
Rugosity: slight
Husk Thickness: 13 mm (17.3 - 8.7)
Length: 183.0 mm
Breadth: 108.0 mm
Colour: slight / absent anthocyanin (ridge/furrow)
Weight: 812.0 g
Pods Per Tree: 5
Hardness: moderate
Length Breadth Ratio: 1.69
Note: ratio of distances between ridges within a pair and between ridges of two different pairs = 0.70
 Reference
Shape: angoleta
Colour: green
 Reference

Colour: brownish orange
 Reference

Ligule Colour: anthocyanin absent (apical)
Stamen Colour: anthocyanin absent
Sepal Colour: greyish green
Sepal Width: 2.20 mm
Sepal Length: 8.20 mm
Ligule Length: 6.50 mm
Ligule Width: 2.40 mm
Ovary Colour: anthocyanin absent (apical)
Ovary Width: 1.10 mm
Ovary Length: 1.30 mm
Style Length: 2.60 mm
Staminode Length: 5.90 mm
Pedicel Colour: pale red
Note: Translation of Methuen colour codes.
 Reference
Self Compatibility: self incompatible
 Reference

Bartley, B.G.D. (1995) Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
Phillips, W. (1997) Results of the artificial inoculation of Moniliophthora rorei using the Aspersion method. Unpublished data supplied by W. Phillips, CATIE, Costa Rica. Personal communication
Phillips, W. (1996) Cocoa cultivar reaction when innoculated with Moniliophthora roreri. Unpublished data supplied by W. Phillips, CATIE, Costa Rica. Personal communication
Phillips, W. (1997) Results of the artificial inoculation of Phytophthora palmivora using the Paper Disc method. Unpublished data supplied by W. Phillips, CATIE, Costa Rica. Personal communication
Costa Rica - CATIE (1981) Genetic Resources of Cacao. A Catalogue of the CATIE Collection. J.M.M. Engels, Tropical Agricultural Research and Training Centre, CATIE, Turrialba, Costa Rica. Technical Bulletin No. 7: pp. 191.
Brazil - CEPEC (1987) List of clones in the CEPEC, Bahia, Brazil collection. Computer printout from CEPEC. Supplied by B.G.D. Bartley, CEPEC, Brazil.
Morera, J., Paredes, A. & Mora, A. (1991) Germoplasma de cacao en el CATIE entre 1947 y 1991, Programa II: Generacion y transferencia de tecnologia. IICA, San Jose, Costa Rica, pp. 49.