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CRU 89    Theobroma cacao

Derivation: Cocoa Research Unit.
Location: ICGT, TTO.

Notes:  Selections made from Trinidad populations.


Selections made from Trinidad populations.


 Cornejo, O.E. et al., 2018
Library Source: Genomic
BioProject: PRJNA486011   NCBI   ENA FASTQ 
Project: PRJNA486011   EVA (project)   EVA (analysis) 
Run: SRR7774355   NCBI   ENA FASTQ 
Experiment: SRX4629469
BioSample: SAMN09934424
SampleName: CRU_89
SampleSource: Trinidad, Tree_ID: Tc17488


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Current List   ICQC,R Website
• Accession: RUQ 1383     ICQC,R 
   - Local Name: CRU 89
List received in 2012   Reference
• Local Name: CRU89
List received in 2011   Reference
• Local Name: CRU 89


Resistant, sp. P. palmivora (Pod).
Note: Score: 2 (1-8 Scale). Fully grown, unripe detached pods (4-5 months old).
 A.D. Iwaro et al., 2006


 Frances Bekele & Gillian Bidaisee, 2022
Pod Index: 20.4 (pods per kg dried beans)


 Frances Bekele & Gillian Bidaisee, 2022
Colour: dark purple
Shape: ovate
Number: 34.0
Total Wet Weight: 65.6 g
Cotyledon Dry Weight: 1.44 g
Cotyledon Length: 24.8 mm
Cotyledon Width: 15.3 mm


 Frances Bekele & Gillian Bidaisee, 2022
Testa: 4.20 %
 Trinidad - CRU, 1998
Butterfat Content: 51.28 %
Testa: 5.58 %


 Frances Bekele & Gillian Bidaisee, 2022
Shape: elliptical
Basal Constriction: moderate
Apex Form: obtuse
Rugosity: moderate
Length: 146.0 mm
Breadth: 85.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa


 Fiona Lahive, 2017
Accession: RUQ 1383
Light Saturated Photosynthetic Rate: 3.43 μmol m2 s-1
Stomatal Conductance: 0.07 mol m2 s-1
Transpiration Rate: 0.95 mmol m2 s-1
Intrinsic Water Use Efficiency: 51.35 μmol mol-1
Instantaneous Water Use Efficiency: 3.68 mmol mol-1
Flush Size: 5
Leaf Area: 310.90 cm2
Leaf Dry Weight: 2.28 g
Specific Leaf Area: 137.80 cm2 g-1


 Frances Bekele & Gillian Bidaisee, 2022
Colour: slight anthocyanin


 Frances Bekele & Gillian Bidaisee, 2022
Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 8.63 mm
Ligule Width: 2.52 mm
Ovule Number: 46
Style Length: 2.59 mm
Pedicel Colour: red

Cornejo, O.E., Muh-Ching Yee, Victor Dominguez, Mary Andrews, Alexandra Sockell, Erika Strandberg, Donald Livingstone III, Conrad Stack, Alberto Romero, Pathmanathan Umaharan, Stefan Royaert, Nilesh R. Tawari, Pauline Ng, Osman Gutierrez, Wilbert Phillips, Keithanne Mockaitis, Carlos D. Bustamante & Juan C. Motamayor (2018) Population genomic analyses of the chocolate tree, Theobroma cacao L., provide insights into its domestication process. Commun Biol 1, 167
CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.
CRU (2011) ICG,T accessions. CRU website.
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 - CRU (1998) Fat Analysis Data. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
Fiona Lahive (2017) Phenotypic data from climate change trials. Personal communication.