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COCA 3348 /52 [CHA]    Theobroma cacao

 Chalmers, W.S. (1973)
Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973.. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.

Derivation: COCA river.
Collected by Chalmers (INIAP/UWI).
Location: R. Coca, Oriente, ECU.

Notes:  Chalmers, 1973a [CHA73A] Chalmers marked these trees and made the initial collections in 1968. Further collections of both budwood and seed were made on later expeditions in 1969 and 1970.
 

Synonyms: EQX 3348 /52 [CHA], EQ 3348 /52, EQX 3348 /52 [A], G VI 325, COC 3348 /52 [CHA], COC 3348 /52 [ECU], COCA 3348 /52 [ECU], EQX 3348 /52 [B], EQX 3348 /52 [J], EQX 3348 /52 [T], EQX 3348 /52 [U], EQX 3348 /52 [V], EQX 3348 /52 [W], EQX 3348 /52 [Z], EQX A 3348 /52, EQX B 3348 /52, EQX C 3348 /52, EQX J 3348 /52, EQX T 3348 /52, EQX U 3348 /52, EQX V 3348 /52, EQX W 3348 /52

 NOTES

Chalmers, 1973a [CHA73A] Chalmers marked these trees and made the initial collections in 1968. Further collections of both budwood and seed were made on later expeditions in 1969 and 1970.

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 141     ICQC,R 
   - Local Name: COCA 3348/52 [CHA]
   - Year of Accession: 1988
List received in 2012   Reference
• Accession: 922
   - Local Name: EQX 3348-52
List received in 2012   Reference
• Local Name: EQX-3348/52
   - Year of Accession: 1995
List received in 2018   Reference
• Accession: 21918
   - Local Name: COCA-3348/52
   - Year of Accession: 2005
List received in 2012   Reference
• Local Name: COCA3348/52
List received in 1997   Reference
• Accession: 325
   - Local Name: EQX 3348 /52 [CHA]
   - Year of Accession: 1994
List received in 1998   Reference
• Local Name: EQX 3348 /52 [CHA]
   - Year of Accession: 1993
List received in 2010   Reference
• Accession: MIA 35752     GRIN-Global 
   - Local Name: EQX 3348-52
   - Year of Accession: 2002

 YIELD

 Frances Bekele & Gillian Bidaisee, 2016
Pod Index: 24.2 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2016
Colour: dark purple
Shape: elliptical
Number: 48.0
Total Wet Weight: 60.7 g
Cotyledon Dry Weight: 0.86 g
Cotyledon Length: 21.0 mm
Cotyledon Width: 11.0 mm
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2016
Shape: oblong
Basal Constriction: strong
Apex Form: attenuate
Rugosity: moderate
Length: 202.0 mm
Breadth: 82.0 mm
Colour: slight anthocyanin
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 141
Light Saturated Photosynthetic Rate: 3.70 μmol m2 s-1
Stomatal Conductance: 0.07 mol m2 s-1
Transpiration Rate: 1.18 mmol m2 s-1
Intrinsic Water Use Efficiency: 57.36 μmol mol-1
Instantaneous Water Use Efficiency: 3.15 mmol mol-1
Flush Size: 5
Leaf Area: 321.20 cm2
Leaf Dry Weight: 2.14 g
Specific Leaf Area: 150.10 cm2 g-1
 Reference

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2016
Ligule Colour: anthocyanin absent
Stamen Colour: slight anthocyanin
Sepal Length: 6.78 mm
Ligule Width: 2.08 mm
Ovule Number: 46
Style Length: 2.23 mm
Pedicel Colour: reddish
 Reference

Chalmers, W.S. (1973) Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973.. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection.. Dr. José Luis Pires, personal communication, February 2012.
Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science.. Jean-Philippe Marelli, personal communication, February 2012.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3).. Personal communication.
CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG).. Francis Kwame Padi, personal communication, February 2012.
India - Kerala (1997) List of survivng clones from all the introductions.. R.V. Nair, Kerala Agricultural University, India. Personal Communication.
Malaysia - ARC Tuaran (1998) Accessions held in the Malaysian Cocoa Board collection, May 1998.. K. Lamin, MCB, Malaysia, Personal Communication.
USDA-ARS, SHRS, NCGR, National Germplasm Repository, Miami, Florida, USA. (2010) List of cocoa accessions held at Miami and Coconut Grove (Plant Introduction Station) in July, 2010.. USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN). [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland.
Frances Bekele & Gillian Bidaisee (2016) Morphological data from the International Cocoa Collection (ICG,T) maintained by the Cocoa Research Centre (CRC), Trinidad & Tobago.. Unpublished data on fruit and flower morphology supplied as an Excel spreadsheet by Frances Bekele, April 2016.
Fiona Lahive (2017) Phenotypic data from climate change trials.. Personal communication.