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ICS 7    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 7

 Parents:
TRINITARIO TYPE x Unknown
 - River Estate
   Lockwood, G. & Gyamfi, M.M.O., 1979
 Mother to:
C 95 [TRI]    Trinidad - ICTA, No Date
 Father to:
C 95 [TRI]    Trinidad - ICTA, No Date

 HELD IN

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List received in 2012   Reference
• Local Name: ICS-7
 Fiji, Naduruloulou Research Centre
List received in 1992   Reference
• Local Name: ICS 7
   - Year of Accession: 1968
List received in 2011   Reference
• Local Name: ICS 7

61.46 % Infection
Note: 24 plants sampled..
 Subali, S., 1992
Resistant (Cushion/Flower).
 Trinidad - CRU, 1994

Pod Index: 17.1 (pods per kg dried beans)
 Reference

Colour Dark Purple: Present
 Reference
Colour: dark purple
Shape: elliptical
Number: 41.0
Total Wet Weight: 94.5 g
Cotyledon Dry Weight: 1.43 g
Cotyledon Length: 24.8 mm
Cotyledon Width: 16.1 mm
 Reference

Testa: 4.80 %
 Reference

Size: large
 Reference
Shape: elliptical
Basal Constriction: strong
Apex Form: acute
Rugosity: intense
Length: 158.0 mm
Breadth: 83.0 mm
Colour: moderate anthocyanin
Hardness: moderate
Note: Hardness > 1.6 and <= 2.0 Mpa
 Reference

Colour: intense anthocyanin
 Reference

Self Compatibility: self compatible
 Reference
Ligule Colour: moderate anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 8.85 mm
Ligule Width: 2.70 mm
Ovule Number: 40
Style Length: 2.44 mm
Pedicel Colour: red
 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.
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.
CRU (2011) ICG,T accessions. CRU website.
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.
Trinidad - CRU (1994) Cocoa Research Unit. Report for 1994. The University of the West Indies.
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.