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CRU 100    Theobroma cacao

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

Notes:  Selections made from Trinidad populations.
 

 HELD IN

 Ghana, Cocoa Research Institute of Ghana (CRIG)
List received in 2012   Reference
• Local Name: CRU100
List received in 2011   Reference
• Local Name: CRU 100

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

Pod Index: 33.0 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 41.0
Total Wet Weight: 46.5 g
Cotyledon Dry Weight: 0.74 g
Cotyledon Length: 19.3 mm
Cotyledon Width: 11.7 mm
 Reference

Testa: 5.90 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: mammillate
Rugosity: moderate
Length: 152.0 mm
Breadth: 69.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Colour: slight anthocyanin
 Reference

Ligule Colour: moderate anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 6.80 mm
Ligule Width: 2.53 mm
Ovule Number: 44
Style Length: 2.24 mm
Pedicel Colour: red
 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.
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 Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele.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.