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ICS 2    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 2

 PEDIGREE DETAILS

 Mother to:
SI 12 /2    Trinidad - CRU, 2002
SI 12 /3    Trinidad - CRU, 2002
SI 12 /4    Trinidad - CRU, 2002
SI 2 /1    Trinidad - CRU, 2002
SI 2 /2    Trinidad - CRU, 2002
 Father to:
SI 12 /1    Trinidad - CRU, 2002
SI 12 /2    Trinidad - CRU, 2002
SI 12 /3    Trinidad - CRU, 2002
SI 12 /4    Trinidad - CRU, 2002
SI 2 /1    Trinidad - CRU, 2002
SI 2 /2    Trinidad - CRU, 2002

 HELD IN

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List received in 2008   Reference
• Accession: IDN-13-TCAC-00069
   - Local Name: ICS2
List received in 2008   Reference
• Local Name: ICS 2
List received in 2011   Reference
• Local Name: ICS 2

 DISEASE

 Witches Broom
Resistant (Cushion/Flower).
 Trinidad - CRU, 1994
Tolerant (Pod).
 Trinidad - CRU, 1994

 YIELD

 Frances Bekele & Gillian Bidaisee, 2022
Pod Index: 20.7 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2022
Colour: dark purple
Shape: elliptical
Number: 46.0
Total Wet Weight: 73.7 g
Cotyledon Dry Weight: 1.05 g
Cotyledon Length: 23.2 mm
Cotyledon Width: 13.1 mm
 Reference
 Trinidad - Dept of Agriculture, No Date
Size: very large
 Reference

 BUTTERFAT

 Frances Bekele & Gillian Bidaisee, 2022
Testa: 4.60 %
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2022
Shape: elliptical
Basal Constriction: strong
Apex Form: acute
Rugosity: moderate
Length: 170.0 mm
Breadth: 81.0 mm
Colour: very slight anthocyanin
 Reference

 FLUSH

 Frances Bekele & Gillian Bidaisee, 2022
Colour: moderate anthocyanin
 Reference

 LEAF

 Trinidad - ICGT, 1992
Distance from Base to Widest Part: 131 mm
Length: 252.0 mm
Width: 94.0 mm
Length to Width Ratio: 2.70
Basal Angle: 109.1 °
Apical Angle: 66.3 °
Petiole Length: 26 mm
Pulvinus Length: 15 mm
 Reference

 FLOWER

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 Bartley, B.G.D., 1970
Self Compatibility: self incompatible
 Reference
 Frances Bekele & Gillian Bidaisee, 2022
Ligule Colour: slight anthocyanin
Stamen Colour: anthocyanin absent
Sepal Length: 7.46 mm
Ligule Width: 2.13 mm
Ovule Number: 38
Style Length: 1.70 mm
Pedicel Colour: red
 Reference
 Trinidad - Dept of Agriculture, No Date
Self Compatibility: self incompatible
 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 - CRU (2002) ICG,T accessions database, reply to queries regarding names new to ICGD. Dr. David Butler, ICG,T Trinidad. Personal Communication. 12 September 2002.
Susilo, A. (2008) The list of germplasm collected by ICCRI. Personal communication from Agung Susilo, July 2008.
Haeser, E. (2008) Accession list for Bah Lias Research Station, PT.PP. London Sumatra, Indonesia. Personal communication, March 2010.
CRU (2011) ICG,T accessions. CRU website.
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.
Trinidad - Dept of Agriculture (No Date) Description of clonal cacao trees (mainly ICS clones). Unpublished notebook, Department of Agriculture, Trinidad.
Trinidad - ICGT (1992) Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, 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.