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CRU 89    Theobroma cacao

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

Notes:  Selections made from Trinidad populations.
 

 NOTES

Selections made from Trinidad populations.

 GENOME DATA LINKS

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

 HELD IN

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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

 DISEASE

 Phytophthora
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

 YIELD

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

 BEAN

 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
 Reference

 BUTTERFAT

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

 FRUIT

 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
 Reference

 PHENOTYPING

 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
 Reference

 FLUSH

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

 FLOWER

 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
 Reference

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.