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GS 50    Theobroma cacao

 Bartley, B.G.D. (1993)
Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.

Derivation: Grenada Selection.
Collected by Pound/Cooper/Cope.
Location: Grenada, Grenada.

Notes:  Bartley, 1993 [BAR93A] Selections made in late '40s in Grenada established at Boulogne nursery.

Bartley, 1996a [BAR96A]. The Grenada population(s) originated largely from two distinct types. One of these is an "Amazonian" variety which is apparently not the related to the ex-Orinoco variety of Trinidad, but is similar to other types on other Caribbean islands and the "Matina" type of Costa Rica. The other type is a Venezuelan Criollo which may be descended from more than one introduction.
 

 HELD IN

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List received in 2012   Reference
• Accession: 241
   - Local Name: GS 50
   - Year of Accession: 1981
List received in 1987   Reference
• Local Name: GS 50
   - Year of Accession: 1984
List received in 2018   Reference
• Accession: 19481
   - Local Name: GS-50
   - Year of Accession: 1993
List received in 2012   Reference
• Local Name: GS - 50
 Grenada, Ministry of Agriculture, Lands, Forestry and Fisheries
List received in 1994   Reference
• Local Name: GS 50
List received in 1990   Reference
• Local Name: GS 50
List received in 2011   Reference
• Local Name: GS 50

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Susceptible, 100.00 % Infection
Note: External Severety = 4.2 and Internal Severety = 4.5
 Phillips, W., 1996
Susceptible, 100.00 % Infection
Note: External Severety = 4.2 and Internal Severety = 4.5
 Phillips, W., 1997
Moderately Susceptible, sp. P. palmivora (Pod).
Note: Unripe, Attached and not wounded
 Morera, J., 1993
Tolerant, sp. P. palmivora (Pod).
 Enriquez, G. & Soria, V.J., 1977
22.08 % Infection
Note: 24 plants sampled..
 Subali, S., 1992

Pod Index: 27.6 (pods per kg dried beans)
 Reference

Size: medium
 Reference
Colour: light purple
Shape: ovate
Number: 39.0
Total Wet Weight: 58.8 g
Cotyledon Dry Weight: 0.93 g
Cotyledon Length: 22.8 mm
Cotyledon Width: 13.7 mm
 Reference

Testa: 4.20 %
 Reference

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Shape: round
 Reference
Shape: obovate
Basal Constriction: moderate
Apex Form: mammillate
Rugosity: slight
Length: 128.0 mm
Breadth: 82.0 mm
Colour: slight anthocyanin
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference
Rugosity: intense
 Reference
Shape: amelonado
Colour: red
 Reference

Colour: moderate anthocyanin
 Reference

Distance from Base to Widest Part: 105 mm
Length: 215.0 mm
Width: 95.0 mm
Length to Width Ratio: 2.30
Basal Angle: 142.2 °
Apical Angle: 88.8 °
Petiole Length: 13 mm
Pulvinus Length: 12 mm
 Reference

Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 7.19 mm
Ligule Width: 2.45 mm
Ovule Number: 42
Style Length: 2.24 mm
Pedicel Colour: red
 Reference
Self Compatibility: self compatible
 Reference

Bartley, B.G.D. (1993) 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.
Almeida, C.M.V.C. de, Barriga, J.P., Machado, P.F.R. & Bartley, B.G.D. (1987) Evolucao do programa de conservacao dos recursos geneticos de cacau na Amazonia Brasileira. CEPLAC/DEPEA, Boletim Tecnico, Belem, Brasil 5: pp.108.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
EET - Pichilingue (2012) Accessions planted in EET - Pichilingue, Ecuador. Freddy Amores and Ignacio Sotomayor C, personal communication, February 2012.
Grenada - MALF (1994) Notes on the cocoa germplasm in Grenada. C.A. Williams, Grenada Cocoa Association, Grenada. Personal Communication.
Malaysia - ARC Tuaran (1990) List of clones held in the Dept. of Agriculture's collection, at Sabah, Tuaran, Malaysia. E.B. Tay, Malaysian Cocoa Board, Malaysia. Personal Communication.
CRU (2011) ICG,T accessions. CRU website.
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.
Enriquez, G. & Soria, V.J. (1977) Mejoramiento genético para resistencia a cinco enfermedades del cacao. In: Proceedings of the 6th International Cocoa Research Conference, Caracas, Venezuela, 1977. Cocoa Producers' Alliance, Lagos, Nigeria. pp. 45-56.
Subali, S. (1992) MARDI's results on performance of imported primary cocoa clones. In: Unpublished Proceedings of MCGC Mini-Seminar on the Performance of Imported Cocoa Clones, 13th October, 1992. Kuala Lumpur, Malaysia.
Frances Bekele & Gillian Bidaisee (2022) Morphological data from the International Cocoa Collection (ICG,T) maintained by the Cocoa Research Centre (CRC), Trinidad & Tobago. Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele. Last update March 2022.
Bartley, B.G.D. (1970) A preliminary catalogue of the cacao germplasm held at the University of the West Indies, Trinidad. University of the West Indies, St. Augustine, Trinidad.
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.
Trinidad - ICGT (1992) Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.