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 Ceratocystis

Resistant

 Small, L.W., 1966

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Reference

Small, L.W. 1966

Routine screening of clones for Ceratocystis. Cocoa Research Unit Annual Report on Cocoa Research 1966. The University of the West Indies, Trinidad, p.48.

Notes

Trinidad - CRU, University of the West Indies Datafile: DIS_CEDS - Disease reaction to Ceratocystis Descriptors: Resistance to C. fimbriata based on the test described in Delgado et al, 1965 [DEL65A] Environment: Inoculated specimens of split shoots incubated at controlled temperature and humidity. After 4 days incubation specimens were examined microscopically and perithecial and mycelial development scored. Regional Research Centre, Imperial College of Tropical Agriculture, University of the West Indies, Trinidad Germplasm: 50 genotypes of the Plant Breeder's selections from mainly River Estate, but with some material from St. Augustine fields and Las Hermanas.

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 Disease

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Tolerant

 Enriquez, G. & Soria, V.J., 1977

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Reference

Enriquez, G. & Soria, V.J. 1977

Mejoramiento genético para resistencia a cinco enfermedades del cacao. In: Proceedings of the 6th International Cocoa Research Conference, Caracas, Venezuela, 1977. Cocoa Producers' Alliance, Lagos, Nigeria. pp. 45-56.

Notes

Various data sources Review of disease data complied at Costa Rica - CATIE from sources including: Costa Rica - CATIE, Trinidad - CRU, University of the West Indies, Ghana - WACRI, Ecuador - Pichilingue. Datafile: DIS_MODS - Disease reaction to Monilia Pod Rot DIS___DS - Disease reaction to stress and disease DIS_PHDS - Disease reaction to Phytophthora DIS_SSDS - Disease reaction to CSSV DIS_WBDS - Disease reaction to Witches' Broom DIS_CEDS - Disease reaction to Ceratocystis Descriptors: Information on the type of disease/stress and the reaction of the clone.

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 Disease

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 Phytophthora

Moderate Resistance, sp. P. palmivora (Pod).

Note: Score: 3 (1-8 Scale). Fully grown, unripe detached pods (4-5 months old).

 A.D. Iwaro et al., 2006

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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

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 Disease

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 Frances Bekele & Gillian Bidaisee, 2022

Pod Index: 31.4 (pods per kg dried beans)

 Reference

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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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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 Frances Bekele & Gillian Bidaisee, 2022

Colour: purple

Shape: ovate

Number: 49.0

Total Wet Weight: 49.3 g

Cotyledon Dry Weight: 0.65 g

Cotyledon Length: 20.2 mm

Cotyledon Width: 12.2 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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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 Frances Bekele & Gillian Bidaisee, 2022

Testa: 8.80 %

 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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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 Frances Bekele & Gillian Bidaisee, 2022

Shape: elliptical

Basal Constriction: moderate

Apex Form: acute

Rugosity: slight

Length: 149.0 mm

Breadth: 73.0 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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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 Frances Bekele & Gillian Bidaisee, 2022

Colour: slight 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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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 Trinidad - ICGT, 1992

Distance from Base to Widest Part: 132 mm

Length: 286.0 mm

Width: 98.0 mm

Length to Width Ratio: 3.00

Basal Angle: 135.8 °

Apical Angle: 84.6 °

Petiole Length: 20 mm

Pulvinus Length: 16 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

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 Leaf

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 Frances Bekele & Gillian Bidaisee, 2022

Ligule Colour: anthocyanin absent

Stamen Colour: anthocyanin absent

Sepal Length: 7.10 mm

Ligule Width: 2.80 mm

Ovule Number: 57

Style Length: 2.22 mm

Pedicel Colour: green

 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.

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 Yield  Bean  Butterfat  Fruit  Flush  Flower

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Bartley, B.G.D. (1993) Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.

Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, personal communication, February 2012.

CRU (2011) ICG,T accessions. CRU website.

Small, L.W. (1966) Routine screening of clones for Ceratocystis. Cocoa Research Unit Annual Report on Cocoa Research 1966. The University of the West Indies, Trinidad, p.48.

Enriquez, G. & Soria, V.J. (1977) Mejoramiento genético para resistencia a cinco enfermedades del cacao. In: Proceedings of the 6th International Cocoa Research Conference, Caracas, Venezuela, 1977. Cocoa Producers' Alliance, Lagos, Nigeria. pp. 45-56.

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

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