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EET 53 [ECU]    Theobroma cacao

Derivation: Estacion Experimental Tropical.
Location: E.E.T. Pichilingue, Ecuador.

Notes:  Some EET clones are imported genotypes which have been given the duplicate identifier [IMP], [POU] for kown Pound collections and [MIG] for known SAN MIGUEL clones.
 

Synonyms: SANTA ROSA 42 [ECU], ETS 53 [ECU], SANTA ROSARIO 42 [ECU], STA ROSA 42 [ECU]

 COLLECTION DETAILS

Location: Los Rios, Ecuador
Coordinates: 79.50 W, 1.00 S
   Marita, J. M. et al., 2001

 PEDIGREE DETAILS

 Parents:
NACIONAL  x Unknown   Ecuador - Pichilingue, 1987

 HELD IN

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List received in 2012   Reference
• Accession: 244
   - Local Name: EET 53
   - Year of Accession: 1978
List received in 2012   Reference
• Local Name: EET-53
   - Year of Accession: 1993
List received in 1990   Reference
• Local Name: EET 53 [ECU]
List received in 2018   Reference
• Accession: 10265
   - Local Name: EET-53
   - Year of Accession: 1965

 DISEASE

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 Frosty Pod Rot
Moderately Susceptible, 100.00 % Infection
Note: External Severety = 2.6 and Internal Severety = 3.2
 Phillips, W., 1996
Moderately Susceptible, 100.00 % Infection
Note: External Severety = 2.8 and Internal Severety = 3.4
 Phillips, W., 1997
 Phytophthora
Moderate Resistance, sp. P. palmivora (Pod).
Note: Unripe, Attached and not wounded
 Morera, J., 1993
Moderately Susceptible, sp. P. palmivora (Pod).
 Phillips, W., 1997

 YIELD

 Costa Rica - CATIE, 1981
Seed Index: 70.9 (dried beans per 100g)
Productivity: medium - high
 Reference

 BEAN

 Costa Rica - CATIE, 1981
Colour Dark Purple: Present
Colour Light Purple: Present
Colour Grey: Absent
Colour White: Absent
Colour Mottled: Absent
Number: 33.5
Maximum Number: 47
Cotyledon Wet Weight: 2.02 g
Cotyledon Dry Weight: 1.41 g
Cotyledon Length: 25.4 mm
Cotyledon Width: 12.7 mm
Cotyledon Thickness: 9.0 mm
 Reference

 FRUIT

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 Brazil - CEPEC, 1987
Rugosity: intense
 Reference
 Costa Rica - CATIE, 1981
Basal Constriction: very slight
Apex Form: obtuse - slightly acute
Rugosity: moderate
Husk Thickness: 12.4 mm (15.1 - 9.7)
Length: 195.0 mm
Breadth: 95.0 mm
Colour: absent anthocyanin
Weight: 692.0 g
Pods Per Tree: 6
Hardness: hard
Length Breadth Ratio: 2.05
Note: ratio of distances between ridges within a pair and between ridges of two different pairs = 0.67
 Reference
 Morera, J. et al., 1991
Shape: amelonado
Colour: green
 Reference

 FLUSH

 Costa Rica - CATIE, 1981
Colour: reddish brown
 Reference

 FLOWER

 Costa Rica - CATIE, 1981
Ligule Colour: slight anthocyanin (apical)
Stamen Colour: slight anthocyanin
Sepal Colour: pastel green
Sepal Width: 1.93 mm
Sepal Length: 8.65 mm
Ligule Length: 7.59 mm
Ligule Width: 2.32 mm
Ovary Colour: anthocyanin absent (apical)
Ovary Width: 0.96 mm
Ovary Length: 1.13 mm
Style Length: 2.48 mm
Staminode Length: 6.66 mm
Pedicel Colour: reddish white
Note: Translation of Methuen colour codes.
 Reference
 Morera, J. et al., 1991
Self Compatibility: self compatible
 Reference

Marita, J. M., Nienhuis, J., Pires, J. L. & Aitken, W. M. (2001) Analysis of Genetic Diversity in Theobroma cacao with Emphasis on Witches’ Broom Disease Resistance. Crop Sci. 41:1305–1316.
Ecuador - Pichilingue (1987) Nomina de clones y numero de plantas existentes en la coleccion internacional de germoplasma de cacao, EET, Pichilingue. Unpublished report, E.E.T. Pichilingue, Ecuador. pp. 18.
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.
Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, personal communication, February 2012.
Colombia - ICA Palmira (1990) List of clones held at ICA Palmira. F. Ocampo Rojas, ICA, Colombia.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). 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 Moniliophthora rorei using the Aspersion method. Unpublished data supplied by W. Phillips, CATIE, Costa Rica. Personal communication
Morera, J. (1993) Reaction of clones to Phytophthora palmivora. J. Morera, 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.