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EQX /J [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 Unpublished Report.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: EQuador crosses.
Collected by UWI/Chalmers.

Notes:  Chalmers, 1973 [CHA73A] Wild collections.

The group name EQX [CHA] now includes the names EQX [AGU], EQX [MIG], EQX A, EQX [A], EQX J, EQX [J], EQX T, EQX [T], EQX U, EQX [U], EQX V, EQX [V], EQX W, EQX [W], EQX Z and EQX [Z], which were erroneously considered as separate group names in Printed Version 1 (End et al., 1992 [END92A]).


 

Synonyms: EQX /J-5 [CHA], EQX /J [A], EQX /J-5 [A], EQX /J [B], EQX /J-5 [B], EQ /J, EQ /J-5, EQX /J [J], EQX /J-5 [J], EQX /J [T], EQX /J-5 [T], EQX /J [U], EQX /J-5 [U], EQX /J [V], EQX /J-5 [V], EQX /J [W], EQX /J-5 [W], EQX /J [Z], EQX /J-5 [Z], EQX A /J, EQX A /J-5, EQX B /J, EQX B /J-5, EQX C /J, EQX C /J-5, EQX J /J, EQX J /J-5, EQX T /J, EQX T /J-5, EQX U /J, EQX U /J-5, EQX V /J, EQX V /J-5, EQX W /J, EQX W /J-5

 NOTES

Chalmers, 1973 [CHA73A] Wild collections. The group name EQX [CHA] now includes the names EQX [AGU], EQX [MIG], EQX A, EQX [A], EQX J, EQX [J], EQX T, EQX [T], EQX U, EQX [U], EQX V, EQX [V], EQX W, EQX [W], EQX Z and EQX [Z], which were erroneously considered as separate group names in Printed Version 1 (End et al., 1992 [END92A]).

 COLLECTION DETAILS

Location: R. San Miguel, Oriente, Ecuador
Date: May 1970
Coordinates: 76.02 W, 0.05 N
Expedition Code: 70CH
   Chalmers, W.S., 1970

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 107     ICQC,R 
   - Local Name: EQX J/5 [CHA]
   - Year of Accession: 1988
List received in 2012   Reference
• Local Name: EQX-J-5
   - Year of Accession: 1995
List received in 2008   Reference
• Accession: IDN-13-TCAC-00660
   - Local Name: EQX J/5 (CHA)
List received in 2011   Reference
• Local Name: EQX /JS [CHA]

 YIELD

 Frances Bekele & Gillian Bidaisee, 2022
Pod Index: 27.0 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2022
Colour: dark purple
Shape: oblong
Number: 37.0
Total Wet Weight: 59.8 g
Cotyledon Dry Weight: 1.00 g
Cotyledon Length: 20.5 mm
Cotyledon Width: 11.6 mm
 Reference

 BUTTERFAT

 Frances Bekele & Gillian Bidaisee, 2022
Testa: 5.20 %
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2022
Shape: elliptical
Basal Constriction: strong
Apex Form: attenuate
Rugosity: intense
Length: 200.0 mm
Breadth: 89.0 mm
Colour: anthocyanin absent
Hardness: moderate
Note: Hardness > 1.6 and <= 2.0 Mpa
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 107
Light Saturated Photosynthetic Rate: 4.12 μmol m2 s-1
Stomatal Conductance: 0.06 mol m2 s-1
Transpiration Rate: 0.97 mmol m2 s-1
Intrinsic Water Use Efficiency: 68.98 μmol mol-1
Instantaneous Water Use Efficiency: 4.33 mmol mol-1
Flush Size: 5
Leaf Area: 230.60 cm2
Leaf Dry Weight: 1.61 g
Specific Leaf Area: 145.50 cm2 g-1
 Reference

 FLUSH

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

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2022
Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 6.57 mm
Ligule Width: 2.14 mm
Ovule Number: 43
Style Length: 2.29 mm
Pedicel Colour: green
 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.
Chalmers, W.S. (1970) Report on the collection of Theobroma cacao in the Oriente region of Ecuador. March-May 1970.. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 20.
Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science.. Jean-Philippe Marelli, personal communication, February 2012.
Susilo, A. (2008) The list of germplasm collected by ICCRI.. Personal communication from Agung Susilo, July 2008.
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.