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CRU 70    Theobroma cacao

Derivation: Cocoa Research Unit.
Location: ICGT, Trinidad and Tobago.

Notes:  Selections made from Trinidad populations.
 

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 United Kingdom, International Cocoa Quarantine Centre, Reading (ICQC,R)
Current List   ICQC,R Website
• Accession: RUQ 897     ICQC,R 
   - Local Name: CRU 70
   - Year of Accession: 1999
List received in 2012   Reference
• Local Name: CRU70
List received in 2011   Reference
• Local Name: CRU 70

Pod Index: 35.1 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 32.0
Total Wet Weight: 39.9 g
Cotyledon Dry Weight: 0.89 g
Cotyledon Length: 18.9 mm
Cotyledon Width: 12.9 mm
 Reference

Testa: 4.50 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: mammillate
Rugosity: moderate
Length: 142.0 mm
Breadth: 68.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Accession: RUQ 897
Light Saturated Photosynthetic Rate: 3.39 μmol m2 s-1
Stomatal Conductance: 0.06 mol m2 s-1
Transpiration Rate: 0.88 mmol m2 s-1
Intrinsic Water Use Efficiency: 61.01 μmol mol-1
Instantaneous Water Use Efficiency: 3.86 mmol mol-1
Flush Size: 3
Leaf Area: 162.70 cm2
Leaf Dry Weight: 0.95 g
Specific Leaf Area: 176.00 cm2 g-1
 Reference

Colour: slight anthocyanin
 Reference

Ligule Colour: moderate anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 6.52 mm
Ligule Width: 2.18 mm
Ovule Number: 44
Style Length: 1.91 mm
Pedicel Colour: reddish
 Reference

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.
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 Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele.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.
Fiona Lahive (2017) Phenotypic data from climate change trials. Personal communication.