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ICS 25    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, Trinidad and Tobago.

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 25

 HELD IN

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List received in 2012   Reference
• Local Name: ICS-25
List received in 1992   Reference
• Local Name: ICS 25
   - Year of Accession: 1968
List received in 2012   Reference
• Local Name: ICS25
 Nigeria, Cocoa Research Institute of Nigeria (CRIN)
List received in 1994   Reference
• Local Name: ICS 25
   - Year of Accession: 1969
List received in 2011   Reference
• Local Name: ICS 25

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Resistant
 Butler, D.R. et al., 1998
Resistant, sp. P. palmivora (Pod).
 Trinidad - CRU, 1994
Susceptible (Field Reaction).
 Butler, D.R. et al., 1998
Susceptible (Pods).
 Trinidad - Dept of Agriculture, No Date
Tolerant (Cushion/Flower).
 Trinidad - CRU, 1994

Low Damage
 Trinidad - Dept of Agriculture, No Date

Pod Index: 28.3 (pods per kg dried beans)
 Reference
Yield (wet beans per tree): 7.00 kg
 Reference

Colour: purple
Shape: ovate
Number: 36.0
Total Wet Weight: 57.2 g
Cotyledon Dry Weight: 0.98 g
Cotyledon Length: 22.9 mm
Cotyledon Width: 13.2 mm
 Reference

Testa: 6.20 %
 Reference
Butterfat Content: 52.50 %
Testa: 6.00 %
 Reference

Shape: elliptical
Basal Constriction: slight
Apex Form: acute
Rugosity: moderate
Length: 147.0 mm
Breadth: 78.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Colour: anthocyanin absent
 Reference

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Self Compatibility: self compatible
 Reference
Ligule Colour: slight anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 6.99 mm
Ligule Width: 2.25 mm
Ovule Number: 41
Style Length: 2.29 mm
Pedicel Colour: red
 Reference
Self Compatibility: self compatible
 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.
Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, personal communication, February 2012.
Fiji - Naduruloulou (1992) Cocoa collection - Fiji Naduruloulou Research Station. G. Prasad, Koronivia Research Station, Nausari, Fiji. Personal Communication.
CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.
Nigeria - CRIN (1994) CRIN Cocoa germplasm. S.A. Olatoye, CRIN, Nigeria. Personal Communication.
CRU (2011) ICG,T accessions. CRU website.
Butler, D.R., Iwaro, A.D., Thevenin, J.-M., Bekele, F., Sounigo, O., Christopher, Y. & Mooledhar, V. (1998) Individual Institute Reports - Trinidad & Tobago, CRU. Report on the IPGRI project: Cocoa Germplasm Utilisation and Conservation, A Global Approach. Appendix to General Progress Report of Year 1.
Trinidad - CRU (1994) Cocoa Research Unit. Report for 1994. The University of the West Indies.
Trinidad - Dept of Agriculture (No Date) Description of clonal cacao trees (mainly ICS clones). Unpublished notebook, Department of Agriculture, 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.
Trinidad - CRU (1998) Fat Analysis Data. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
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.