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ICS 55    Theobroma cacao

 Lockwood, G. & Gyamfi, M.M.O. (1979)
The CRIG cocoa germplasm collection with notes on codes used in the breeding programme at Tafo and elsewhere.. Technical Bulletin, No. 10, Cocoa Research Institute, Tafo, Ghana. pp. 62.

Derivation: Imperial College Selections.
Location: ICTA, TTO.

Notes:  Lockwood & Gyamfi, 1979 [LOC79A] Selections from farms in Trinidad (1-100) and from Criollo progenies (101-107).

Cope, 1949a [COP49A]. One hundred selections were made as a result of a survey started in 1930 by Pound.

Bartley, 1993a [BAR93A]. Numbers 1 to 100 were selected from all over Trinidad, numbers 101 to 107 were Criollo trees selected from a farm but all have been lost and numbers greater than 111 are selections made in an experimental programme.

Bartley, 1996a [BAR96A]. The ICS material includes several clones which resulted from recent (at that time) introductions. These include Criollos from Nicaragua (ICS 60 and its relatives) or Venezuela. Other ICS clones represent "Amazonian" types originally introduced from the Orinoco. It is likely that several introductions were involved in creating the diversity that existed in Trinidad when Pound started the selection work.

Bartley, 1997b [BAR97B] From ICS 113 onwards these clones were used as parents in the AX / MX series. The same cross be known by an equivalent C [TTO] name.
 

Synonyms: I S C 55

 NOTES

Lockwood & Gyamfi, 1979 [LOC79A] Selections from farms in Trinidad (1-100) and from Criollo progenies (101-107). Cope, 1949a [COP49A]. One hundred selections were made as a result of a survey started in 1930 by Pound. Bartley, 1993a [BAR93A]. Numbers 1 to 100 were selected from all over Trinidad, numbers 101 to 107 were Criollo trees selected from a farm but all have been lost and numbers greater than 111 are selections made in an experimental programme. Bartley, 1996a [BAR96A]. The ICS material includes several clones which resulted from recent (at that time) introductions. These include Criollos from Nicaragua (ICS 60 and its relatives) or Venezuela. Other ICS clones represent "Amazonian" types originally introduced from the Orinoco. It is likely that several introductions were involved in creating the diversity that existed in Trinidad when Pound started the selection work. Bartley, 1997b [BAR97B] From ICS 113 onwards these clones were used as parents in the AX / MX series. The same cross be known by an equivalent C [TTO] name.

 PEDIGREE DETAILS

 Mother to:
C 94 [TRI]    Trinidad - ICTA, No Date
 Father to:
C 93 [TRI]    Trinidad - ICTA, No Date
C 94 [TRI]    Trinidad - ICTA, No Date

 HELD IN

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List received in 2012   Reference
• Accession: 564
   - Local Name: ICS 55
   - Year of Accession: 1985
List received in 2018   Reference
• Accession: 21176
   - Local Name: ICS-55
   - Year of Accession: 1996
List received in 2011   Reference
• Local Name: ICS 55
List received in 2016   Reference
• Accession: PI 668423     GRIN-Global 
   - Local Name: ICS 55
   - Year of Accession: 1939
List received in 1972   Reference
• Local Name: ICS 55

 DISEASE

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 Ceratocystis
Intermediate
 Morera, J. & Mora, A., 1990
Intermediate
 Enriquez, G.A. & Soria, V.J., 1967
 Witches Broom
Intermediate
 Morera, J. & Mora, A., 1990
Intermediate
 Enriquez, G.A. & Soria, V.J., 1967
Resistant (Field Reaction).
 Luz, E.D.M.N. & Silva, S.D.V.M., 1997
Susceptible (Seedling).
 Luz, E.D.M.N. & Silva, S.D.V.M., 1997

 BEAN

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 Bartley, B.G.D., 1970
Colour Dark Purple: Present
Colour Purple: Present
Colour Light Purple: Present
Size: small
 Reference
 Enriquez, G.A. & Soria, V.J., 1967
Colour Purple: 19 %
Colour Light Purple: 30 %
Colour White: 1 %
Colour Mottled: 50 %
Shape: flat/round
Length: 23.4 mm
Width: 14.3 mm
Thickness: 8.9 mm
Cotyledon Wet Weight: 1.90 g
Cotyledon Dry Weight: 1.00 g
 Reference
 Morera, J. & Mora, A., 1990
Colour Dark Purple: 19 %
Colour Light Purple: 30 %
Colour White: 1 %
Colour Mottled: 50 %
Cotyledon Wet Weight: 1.90 g
Cotyledon Dry Weight: 1.00 g
Cotyledon Length: 23.4 mm
Cotyledon Width: 14.3 mm
Cotyledon Thickness: 8.9 mm
 Reference

 FRUIT

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 Bartley, B.G.D., 1970
Size: medium
 Reference
 Enriquez, G.A. & Soria, V.J., 1967
Shape: angoleta
Husk Thickness: 10.8 mm
Length: 142.0 mm
Breadth: 75.0 mm
Colour: red and yellow
Hardness: very soft
Length Breadth Ratio: 1.90
 Reference
 Morera, J. & Mora, A., 1990
Shape: angoleta
Rugosity: smooth
Husk Thickness: 10.8 mm
Length: 142.0 mm
Breadth: 75.0 mm
Colour: light red and green
Hardness: soft
Length Breadth Ratio: 1.89
 Reference

 FLUSH

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 Frances Bekele & Gillian Bidaisee, 2022
Colour: slight anthocyanin
 Reference
 Enriquez, G.A. & Soria, V.J., 1967
Colour: intense anthocyanin
 Reference
 Morera, J. & Mora, A., 1990
Colour: yellow
 Reference

 LEAF

 Enriquez, G.A. & Soria, V.J., 1967
Length to Width Ratio: 2.63
Basal Angle: 139.0 °
Apical Angle: 99.0 °
 Reference
 Morera, J. & Mora, A., 1990
Length to Width Ratio: 2.63
Basal Angle: 139.0 °
Apical Angle: 99.0 °
 Reference

 FLOWER

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 Bartley, B.G.D., 1970
Self Compatibility: self compatible
 Reference
 Brazil - CEPEC, 1987
Self Compatibility: self compatible
 Reference
 Enriquez, G.A. & Soria, V.J., 1967
Bud Colour: intense anthocyanin
Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Guide Line Length: 2.90 mm
Sepal Colour: intense anthocyanin
Sepal Width: 2.10 mm
Sepal Length: 6.90 mm
Sepal Length to Width Ratio: 3.35
Ligule Length: 2.40 mm
Ligule Width: 2.10 mm
Ligule Length to Width Ratio: 1.14
Ribbon Length: 3.30 mm
Ribbon Colour: anthocyanin absent
Ovary Colour: intense anthocyanin (apical), anthocyanin absent (basal)
Ovary Width: 1.00 mm
Ovary Length: 1.20 mm
Ovary Length to Width Ratio: 1.31
Ovule Number: 41
Style Colour: anthocyanin absent (apical), intense anthocyanin (basal)
Style Length: 1.50 mm
Staminode Colour: intense anthocyanin
Staminode Length: 6.50 mm
Pedicel Length: 11.00 mm
Pedicel Colour: intense anthocyanin, intense anthocyanin (ab), moderate anthocyanin (basal)
Hairs on Upper Surface of Sepal: present
Pigmented Glands on Lower Surface of Sepal: present
Horns at Base of Guide Lines: present
Pigmented Spot on Pollen Sac: absent
Self Compatibility: self incompatible
 Reference
 Trinidad - Dept of Agriculture, No Date
Self Compatibility: self compatible
 Reference
 Morera, J. & Mora, A., 1990
Bud Colour: yellow
Ligule Colour: white
Stamen Colour: anthocyanin absent
Guide Line Length: 2.90 mm
Sepal Colour: yellow
Sepal Width: 2.10 mm
Sepal Length: 6.90 mm
Ligule Length: 2.40 mm
Ligule Width: 2.10 mm
Ribbon Length: 3.30 mm
Ribbon Colour: white
Ovary Width: 1.00 mm
Ovary Length: 1.20 mm
Ovule Number: 41
Style Colour: yellow (apical), white (basal)
Style Length: 1.50 mm
Staminode Colour: yellow
Staminode Length: 6.50 mm
Pedicel Length: 11.00 mm
Pedicel Colour: yellow, yellow (ab), green - white (basal)
Hairs on Upper Surface of Sepal: present
Pigmented Glands on Lower Surface of Sepal: present
Horns at Base of Guide Lines: present
 Reference

Lockwood, G. & Gyamfi, M.M.O. (1979) The CRIG cocoa germplasm collection with notes on codes used in the breeding programme at Tafo and elsewhere.. Technical Bulletin, No. 10, Cocoa Research Institute, Tafo, Ghana. pp. 62.
Trinidad - ICTA (No Date) List of C Crosses.. Unpublished report, Imperial College of Tropical Agriculture, Trinidad. pp.4.
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.
CRU (2011) ICG,T accessions.. CRU website.
USDA, ARS Tropical Agriculture Research Station, Mayaguez, Puerto Rico. (2016) List of cocoa accessions held at Mayaguez in April 2016.. USDA-ARS GRIN-Global. [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland.
Perez, A.Z., Reyes, H.E. & Reyes, L.C. (1972) Programa de mejoramiento genetico de cacao en Venezuela.. MAC, Caucagua, Venezuela, pp. 131.
Morera, J. & Mora, A. (1990) Banco de Germoplasma de Cacao del CATIE.. Information supplied on computer diskette by CATIE, Turrialba, Costa Rica.
Enriquez, G.A. & Soria, V.J. (1967) Cacao Cultivars Register.. IICA Teaching and Research Centre, Costa Rica
Luz, E.D.M.N. & Silva, S.D.V.M. (1997) Evaluating resistance/tolerance to Witches' Broom disease in Bahia, Brazil.. Final Report to ACRI. CEPLAC/CEPEC, February, 1997. pp. 56. Data supplied to ICGD by Luz & Silva.
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.
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.
Brazil - CEPEC (1987) List of clones in the CEPEC, Bahia, Brazil collection.. Computer printout from CEPEC. Supplied by B.G.D. Bartley, CEPEC, Brazil.
Trinidad - Dept of Agriculture (No Date) Description of clonal cacao trees (mainly ICS clones).. Unpublished notebook, Department of Agriculture, Trinidad.