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ICS 41 Group Name 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.

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Synonyms: I S C 41

PEDIGREE DETAILS

Mother to:: SI 41 /1 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /2 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /3 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /4 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /5 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_
Father to:: GEBP 123 /A-M [ADI] Frances Bekele, 2019

Reference

Frances Bekele 2019
Pedigree data for the GEBP clones supplied to ICQC,R (UK) by the Cocoa Research Centre (CRC), Trinidad & Tobago. Data supplied as an Excel spreadsheet by Frances Bekele, April 2019.; GEBP 165 /A-M [ADI] Frances Bekele, 2019

Reference

Frances Bekele 2019
Pedigree data for the GEBP clones supplied to ICQC,R (UK) by the Cocoa Research Centre (CRC), Trinidad & Tobago. Data supplied as an Excel spreadsheet by Frances Bekele, April 2019.; SI 41 /1 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /2 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /3 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /4 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_; SI 41 /5 Trinidad - CRU, 2002

Reference

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.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_

HELD IN

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Costa Rica, Centro Agronómico Tropical de Investigación y Enseñanza (CATIE): List received in 2018 Reference

Reference

Allan Mata 2018
Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
Notes

Excel file received by email.; • Accession: 21175; - Local Name: ICS-41; - Year of Accession: 1996
Ghana, Cocoa Research Institute of Ghana (CRIG): List received in 2012 Reference

Reference

CRIG 2012
Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.; • Local Name: ICS41
Malaysia, Malaysian Cocoa Board (MCB): List received in 1998 Reference

Reference

Malaysia - ARC Tuaran 1998
Accessions held in the Malaysian Cocoa Board collection, May 1998. K. Lamin, MCB, Malaysia, Personal Communication.; • Local Name: ICS 41; - Year of Accession: 1993
Trinidad and Tobago, International Cocoa Genebank, Trinidad (ICG,T): List received in 2011 Reference

Reference

CRU 2011
ICG,T accessions. CRU website.
Notes

Website visited 12th April 2011

Link Unavailable [http://sta.uwi.edu/cru/icgt-accessions.asp]; • Local Name: ICS 41
United States of America, USDA-TARS: List received in 2016 Reference

Reference

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.
Notes

Original link: https://npgsweb.ars-grin.gov/gringlobal/view2.aspx?dv=web_site_taxon_accessionlist¶ms=:taxonomyid=101885;:siteid=7 (not working)

npgsweb.ars-grin.gov/gringlobal/...; • Accession: PI 668422 GRIN-Global; - Local Name: ICS 41; - Year of Accession: 1983

DISEASE

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Phytophthora: Resistant, sp. P. palmivora (Pod).; Note: Unripe, Unattached and not wounded; Iwaro, D., 1998

Reference

Iwaro, D. 1998
Evalation of accessions for Black Pod. Personal Communication 30th October 1998. Data sent by email from Dr. Iwaro.
Notes

Trinidad - CRU, University of the West Indies Datafile: DIS_PHDS - Disease reaction to Phytophthora Experimental conditions: Inoculation techinique used - spray method. Inoculum concentration: 100,000 zoospores/ml. Incubated for four days. Character Data: The following descriptions are used to segregate clones according to reaction: no visible symptoms = highly resistant to penetration, 1-5 localised lesions = resistant, 6-15 localised lesions = moderately resistant, >15 localised lesions = partially resistant/resistant to spread of lesion alone, 1-5 expanding lesions = partially resistant/resistant to penetration alone, 6-15 expanding lesions = moderately susceptible, >15 expanding lesions = susceptible, coalesced lesions = highly susceptible Disease - Phytophthora palmivora, P. megakarya (Local Names: Black Pod, Podredumbre negra, Pourriture Brune, Podridao parda).

Disease; Resistant, sp. P. palmivora (Pod).; Note: Fully grown, unripe detached pods (4-5 months old); A.D. Iwaro & D. R. Butler, 2003

Reference

A.D. Iwaro & D. R. Butler 2003
Sources of Resistance to Phytophthora Pod Rot at the International Cocoa Genebank, Trinidad. In: Proceedings of the 14th International Cocoa Research Conference, Accra, Ghana (October 2003). Cocoa Producers' Alliance, Lagos, Nigeria.
Disease; Resistant, sp. P. palmivora (Pod).; Note: Score: 1 (1-8 Scale). Fully grown, unripe detached pods (4-5 months old).; A.D. Iwaro et al., 2006

Reference

A.D. Iwaro, D.R. Butler & A.B. Eskes 2006
Sources of resistance to Phytophthora pod rot at the International Cocoa Genebank, Trinidad. Genetic Resources and Crop Evolution (2006) 53: 99–109
Notes

DOI 10.1007/s10722-004-1411-1

Disease
Witches Broom: Tolerant (Vegetative).; Trinidad - CRU, 1994

Reference

Trinidad - CRU 1994
Cocoa Research Unit. Report for 1994. The University of the West Indies.
Notes

Trinidad - CRU, University of the West Indies Datafile: ICGTF_DS TTO - ICG,T Flower Characters ICGTFRDS TTO - ICG,T Fruit Characters ICGTL_DS TTO - ICG,T Leaf Characters DIS_WBDS - Disease reaction to Witches' Broom Germplasm: Flower descriptor data is presented for 620 clones. Fruit descriptor data is presented for 333 clones. The seed characters of 118 clones are partly described. Leaf descriptor data is presented for 229 clones. The germplasm is mainly of Peruvian, Ecuadorian and Colombian origin. Environment: Each clone is represented in the collection by up to 16 trees planted 1.8 m apart in a block design. Shading is provided by Erythrina sp. (spaced 60m apart) and bananas (spaced 4m apart). Fertilizer, N-P-K (15:10:5), is provided twice a year at 250g per tree. Cyclic irrigation is performed from February to May (10 l of water per plant/week). Soil type group -33 A 1 Soil Series - Cunupia fine sandy clay with restricted internal drainage Lithology - silty clay alluvium Drainage - imperfect Slope category - 0°-2° Meterological data are given in this table as mean maximum, mean minimum and overall mean temperature and mean total rainfall per month over the period 1961-1990. Month Temp. (°C) Rainfall Max Min Mean (mm) January 30.1 20.8 24.6 71.2 February 30.2 20.8 25.0 43.3 March 31.2 21.4 25.7 36.6 April 31.8 22.3 26.5 51.1 May 31.6 23.3 26.9 116.5 June 30.6 23.3 26.4 252.1 July 30.8 23.0 26.2 266.3 August 31.2 22.9 26.4 250.1 September 31.5 22.8 26.5 202.5 October 31.4 22.82 6.41 99.3 November 30.8 22.4 25.9 227.8 December 30.2 21.5 25.2 155.6 Descriptors: The character selection is based on the IBPGR list (IBPGR, 1981 [IBP81A]). Where descriptor states present real measurements, e.g. pod length in cm, the data are given as the mean of all the measurements ± the standard deviation. For some descriptors, such as Leaf, flush colour, the phenotypic expression of the character is coded on a scale from 0 to 9. On this scale '0' represents the lowest or weakest expression of a characteristic and '9' represents the highest or strongest. Leaf and Flower Characteristics p.300-307 Morphological Characteristics of Flowers, Fruit and Leaves- ICGT, Trinidad, Disease - Crinipellis perniciosa (Marasmius perniciosa) (local names: Witches' Broom Disease, Escoba de bruja, Balai de sorciere, Vassoura de bruxa).

Disease; Tolerant (Pod).; Trinidad - CRU, 1994

Reference

Trinidad - CRU 1994
Cocoa Research Unit. Report for 1994. The University of the West Indies.
Notes

Trinidad - CRU, University of the West Indies Datafile: ICGTF_DS TTO - ICG,T Flower Characters ICGTFRDS TTO - ICG,T Fruit Characters ICGTL_DS TTO - ICG,T Leaf Characters DIS_WBDS - Disease reaction to Witches' Broom Germplasm: Flower descriptor data is presented for 620 clones. Fruit descriptor data is presented for 333 clones. The seed characters of 118 clones are partly described. Leaf descriptor data is presented for 229 clones. The germplasm is mainly of Peruvian, Ecuadorian and Colombian origin. Environment: Each clone is represented in the collection by up to 16 trees planted 1.8 m apart in a block design. Shading is provided by Erythrina sp. (spaced 60m apart) and bananas (spaced 4m apart). Fertilizer, N-P-K (15:10:5), is provided twice a year at 250g per tree. Cyclic irrigation is performed from February to May (10 l of water per plant/week). Soil type group -33 A 1 Soil Series - Cunupia fine sandy clay with restricted internal drainage Lithology - silty clay alluvium Drainage - imperfect Slope category - 0°-2° Meterological data are given in this table as mean maximum, mean minimum and overall mean temperature and mean total rainfall per month over the period 1961-1990. Month Temp. (°C) Rainfall Max Min Mean (mm) January 30.1 20.8 24.6 71.2 February 30.2 20.8 25.0 43.3 March 31.2 21.4 25.7 36.6 April 31.8 22.3 26.5 51.1 May 31.6 23.3 26.9 116.5 June 30.6 23.3 26.4 252.1 July 30.8 23.0 26.2 266.3 August 31.2 22.9 26.4 250.1 September 31.5 22.8 26.5 202.5 October 31.4 22.82 6.41 99.3 November 30.8 22.4 25.9 227.8 December 30.2 21.5 25.2 155.6 Descriptors: The character selection is based on the IBPGR list (IBPGR, 1981 [IBP81A]). Where descriptor states present real measurements, e.g. pod length in cm, the data are given as the mean of all the measurements ± the standard deviation. For some descriptors, such as Leaf, flush colour, the phenotypic expression of the character is coded on a scale from 0 to 9. On this scale '0' represents the lowest or weakest expression of a characteristic and '9' represents the highest or strongest. Leaf and Flower Characteristics p.300-307 Morphological Characteristics of Flowers, Fruit and Leaves- ICGT, Trinidad, Disease - Crinipellis perniciosa (Marasmius perniciosa) (local names: Witches' Broom Disease, Escoba de bruja, Balai de sorciere, Vassoura de bruxa).

Disease; Tolerant (Cushion/Flower).; Trinidad - CRU, 1994

Reference

Trinidad - CRU 1994
Cocoa Research Unit. Report for 1994. The University of the West Indies.
Notes

Trinidad - CRU, University of the West Indies Datafile: ICGTF_DS TTO - ICG,T Flower Characters ICGTFRDS TTO - ICG,T Fruit Characters ICGTL_DS TTO - ICG,T Leaf Characters DIS_WBDS - Disease reaction to Witches' Broom Germplasm: Flower descriptor data is presented for 620 clones. Fruit descriptor data is presented for 333 clones. The seed characters of 118 clones are partly described. Leaf descriptor data is presented for 229 clones. The germplasm is mainly of Peruvian, Ecuadorian and Colombian origin. Environment: Each clone is represented in the collection by up to 16 trees planted 1.8 m apart in a block design. Shading is provided by Erythrina sp. (spaced 60m apart) and bananas (spaced 4m apart). Fertilizer, N-P-K (15:10:5), is provided twice a year at 250g per tree. Cyclic irrigation is performed from February to May (10 l of water per plant/week). Soil type group -33 A 1 Soil Series - Cunupia fine sandy clay with restricted internal drainage Lithology - silty clay alluvium Drainage - imperfect Slope category - 0°-2° Meterological data are given in this table as mean maximum, mean minimum and overall mean temperature and mean total rainfall per month over the period 1961-1990. Month Temp. (°C) Rainfall Max Min Mean (mm) January 30.1 20.8 24.6 71.2 February 30.2 20.8 25.0 43.3 March 31.2 21.4 25.7 36.6 April 31.8 22.3 26.5 51.1 May 31.6 23.3 26.9 116.5 June 30.6 23.3 26.4 252.1 July 30.8 23.0 26.2 266.3 August 31.2 22.9 26.4 250.1 September 31.5 22.8 26.5 202.5 October 31.4 22.82 6.41 99.3 November 30.8 22.4 25.9 227.8 December 30.2 21.5 25.2 155.6 Descriptors: The character selection is based on the IBPGR list (IBPGR, 1981 [IBP81A]). Where descriptor states present real measurements, e.g. pod length in cm, the data are given as the mean of all the measurements ± the standard deviation. For some descriptors, such as Leaf, flush colour, the phenotypic expression of the character is coded on a scale from 0 to 9. On this scale '0' represents the lowest or weakest expression of a characteristic and '9' represents the highest or strongest. Leaf and Flower Characteristics p.300-307 Morphological Characteristics of Flowers, Fruit and Leaves- ICGT, Trinidad, Disease - Crinipellis perniciosa (Marasmius perniciosa) (local names: Witches' Broom Disease, Escoba de bruja, Balai de sorciere, Vassoura de bruxa).

Disease

YIELD

Frances Bekele & Gillian Bidaisee, 2022: Pod Index: 33.2 (pods per kg dried beans); Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

BEAN

Bartley, B.G.D., 1970: Size: large; Reference

Reference

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.
Notes

Trinidad - University of the West Indies Datafile: ICGT2_DS TTO - UWI Cacao Collection Germplasm: Passport descriptors for approximately 1000 accessions of mainly South American and Trinidadian origin. Environment: No details. Descriptors: Six descriptors for fruit, seed and compatability characteristics. Character Data: Combinations used FXC = forastero x criollo, TX = trinitario cross

Bean Fruit Flower
Frances Bekele & Gillian Bidaisee, 2022: Colour: dark purple; Shape: elliptical; Number: 43.0; Total Wet Weight: 43.2 g; Cotyledon Dry Weight: 0.70 g; Cotyledon Length: 19.6 mm; Cotyledon Width: 9.7 mm; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

BUTTERFAT

Frances Bekele & Gillian Bidaisee, 2022: Testa: 5.70 %; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower
Trinidad - CRU, 1998: Butterfat Content: 52.40 %; Testa: 6.00 %; Reference

Reference

Trinidad - CRU 1998
Fat Analysis Data. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
Notes

Trinidad - CRU, University of the West Indies Datafile: TTOFATDS TTO - Fat Analysis Germplasm: Data is provided on 410 accessions. Environment: No details given. Descriptors: Data for the fat content of the shell, including standard error and the butterfat content is presented. Methods: Ripe, open pollinated pods were harvested, 2 pods from each of 5 trees (10 pods per accession) were selected. The beans were then mixed thoroughly and a sub-sample taken. The sub-sample was then cleaned to remove the mucliage, oven dried and stored at room temperature until analysis. For each accession 2 bean samples (each consisting of 20 beans) were taken from the bulked sample. The beans were shelled and eaach sample was groung using a coffee grinder (2x30 seconds). The ground samples were then dried for 16 hours at 110 degrees C, cooled and stored in a dessicator at 25 degrees C until analysis. From the cried ground samples, a 2 gram sub-sample was weighed into a beaker, 100 ml of 4.0M HCl was added and the sample boiled for 30 minutes. The boiled sample was filtered and the residue washed with distilled water until clear of pigment. After washing, the filtered sample was placed in an extraction thimble and dried for 16 hours at 60 degrees C. The butterfat from the bean samples was extracted using the Soxtec System (Tecetor). Each dried sample was extracted for one hour using petroleum ether (40-60) as the solvent. The butterfat extracted from the sample was then dried in an oven for 30 minutes at 100 degrees C, cooled in a dessicator and the percentage butterfat determined on a dry matter basis.

Butterfat

FRUIT

Bartley, B.G.D., 1970: Size: large; Reference

Reference

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.
Notes

Trinidad - University of the West Indies Datafile: ICGT2_DS TTO - UWI Cacao Collection Germplasm: Passport descriptors for approximately 1000 accessions of mainly South American and Trinidadian origin. Environment: No details. Descriptors: Six descriptors for fruit, seed and compatability characteristics. Character Data: Combinations used FXC = forastero x criollo, TX = trinitario cross

Bean Fruit Flower
Frances Bekele & Gillian Bidaisee, 2022: Shape: oblong; Basal Constriction: moderate; Apex Form: acute; Rugosity: moderate; Length: 191.0 mm; Breadth: 75.0 mm; Colour: anthocyanin absent; Hardness: hard; Note: Hardness > 2.0 Mpa; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

FLUSH

Frances Bekele & Gillian Bidaisee, 2022: Colour: intense anthocyanin; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

LEAF

Trinidad - ICGT, 1992: Distance from Base to Widest Part: 148 mm; Length: 299.0 mm; Width: 93.0 mm; Length to Width Ratio: 3.20; Basal Angle: 83.2 °; Apical Angle: 70.8 °; Petiole Length: 23 mm; Pulvinus Length: 17 mm; Reference

Reference

Trinidad - ICGT 1992
Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies.
Flower descriptor data is presented for 620 clones, fruit descriptor data of 333 and seed characters of 118 clones are partly described. Leaf descriptor data is presented for 229 clones. The germplasm is mainly of Peruvian, Ecuadorian and Colombian origin. Environment: Each clone is represented in the collection by up to 16 trees planted 1.8 m apart in a block design. Shading is provided by Erythrina sp. (spaced 60m apart) and bananas (spaced 4m apart). Fertilizer, N-P-K (15:10:5), is provided twice a year at 250g per tree. Cyclic irrigation is performed from February to May (10 l of water per plant/week). Soil type group -33 A 1 Soil Series - Cunupia fine sandy clay with restricted internal drainage Lithology - silty clay alluvium Drainage - imperfect Slope category - 0°-2° Meterological data are given in this table as mean maximum, mean minimum and overall mean temperature and mean total rainfall per month over the period 1961-1990. Month Temp. (°C) Rainfall Max Min Mean (mm) January 30.1 20.8 24.6 71.2 February 30.2 20.8 25.0 43.3 March 31.2 21.4 25.7 36.6 April 31.8 22.3 26.5 51.1 May 31.6 23.3 26.9 116.5 June 30.6 23.3 26.4 252.1 July 30.8 23.0 26.2 266.3 August 31.2 22.9 26.4 250.1 September 31.5 22.8 26.5 202.5 October 31.4 22.82 6.41 99.3 November 30.8 22.4 25.9 227.8 December 30.2 21.5 25.2 155.6 Descriptors: The character selection is based on the IBPGR list (IBPGR, 1981 [IBP81A]). Where descriptor states present real measurements, e.g. pod length in cm, the data are given as the mean of all the measurements ± the standard deviation. For some descriptors, such as Leaf, flush colour, the phenotypic expression of the character is coded on a scale from 0 to 9. On this scale '0' represents the lowest or weakest expression of a characteristic and '9' represents the highest or strongest. Leaf and Flower Characteristics p.300-307

Leaf

FLOWER

Bartley, B.G.D., 1970: Self Compatibility: self incompatible; Reference

Reference

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.
Notes

Trinidad - University of the West Indies Datafile: ICGT2_DS TTO - UWI Cacao Collection Germplasm: Passport descriptors for approximately 1000 accessions of mainly South American and Trinidadian origin. Environment: No details. Descriptors: Six descriptors for fruit, seed and compatability characteristics. Character Data: Combinations used FXC = forastero x criollo, TX = trinitario cross

Bean Fruit Flower
Frances Bekele & Gillian Bidaisee, 2022: Ligule Colour: slight anthocyanin; Stamen Colour: anthocyanin absent; Sepal Length: 7.84 mm; Ligule Width: 2.76 mm; Ovule Number: 41; Style Length: 2.25 mm; Pedicel Colour: reddish; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

REFERENCES

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.

Frances Bekele (2019) Pedigree data for the GEBP clones supplied to ICQC,R (UK) by the Cocoa Research Centre (CRC), Trinidad & Tobago. Data supplied as an Excel spreadsheet by Frances Bekele, April 2019.

Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.

CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.

Malaysia - ARC Tuaran (1998) Accessions held in the Malaysian Cocoa Board collection, May 1998. K. Lamin, MCB, Malaysia, 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.

Iwaro, D. (1998) Evalation of accessions for Black Pod. Personal Communication 30th October 1998. Data sent by email from Dr. Iwaro.

A.D. Iwaro & D. R. Butler (2003) Sources of Resistance to Phytophthora Pod Rot at the International Cocoa Genebank, Trinidad. In: Proceedings of the 14th International Cocoa Research Conference, Accra, Ghana (October 2003). Cocoa Producers' Alliance, Lagos, Nigeria.

A.D. Iwaro, D.R. Butler & A.B. Eskes (2006) Sources of resistance to Phytophthora pod rot at the International Cocoa Genebank, Trinidad. Genetic Resources and Crop Evolution (2006) 53: 99–109

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.

Trinidad - CRU (1998) Fat Analysis Data. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.

Trinidad - ICGT (1992) Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.