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GU 261 /P    Theobroma cacao

 French Guiana - CIRAD-CP (1994)
Morphological characteristics of the clones held at CIRAD Guyane.. Data supplied to ICGD on computer diskette. Dr. Ph. Lachenaud, CIRAD Guyane.

Collected by Clement/Salle IRCC.
Location: Haut Camopi+Ecuador, GUF.

Lachenaud, 1993a [LAC93A]. Haut-Camopi material (See CAM 1, 3, 7, 9, 12) generally tall, Leaves - pigmented flushes, Fruit - heterogeneity in pod shape but usually green, clear basal constriction, obtuse apex, intermediate surface rugosity, prominent paired ridges.

Notes:  French Guiana - CIRAD-CP, 1994 [GUY94A] GU 112-359 from French Guiana, GU 360-370 from Ecuador.

Some publications have erroneously omitted the GU code and list only the clone number and suffix, for example 269H = GU 269/H and N 123 = GU 123/N.

2 May 2002 Data collected on wild trees from which the GU material were collected as seed has been removed from the ICGD on the recommendation of Philippe Lachenaud (CIRAD-CP). The descriptors referred only to the wild material which was never cloned in genebanks and as such the presence of these data were believed to be misleading. All GU material was collected as seed and properly labelled material should include a letter suffix at the end of the name.
 

 NOTES

French Guiana - CIRAD-CP, 1994 [GUY94A] GU 112-359 from French Guiana, GU 360-370 from Ecuador. Some publications have erroneously omitted the GU code and list only the clone number and suffix, for example 269H = GU 269/H and N 123 = GU 123/N. 2 May 2002 Data collected on wild trees from which the GU material were collected as seed has been removed from the ICGD on the recommendation of Philippe Lachenaud (CIRAD-CP). The descriptors referred only to the wild material which was never cloned in genebanks and as such the presence of these data were believed to be misleading. All GU material was collected as seed and properly labelled material should include a letter suffix at the end of the name.

 COLLECTION DETAILS

Location: R. Camopi, Haut Camopi, French Guiana (primary forest)
Date: 9 May 1987
Coordinates: 53°13'15" W, 2°21'18" N
Material collected: Seed
Notes: Montagne Cacao. same tree as #260
Expedition Code: 87GU
   Sallee, B., 1987

 PEDIGREE DETAILS

 Parents:
GU 261  x Unknown

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 1370     ICQC,R 
   - Local Name: GU 261/P
   - Year of Accession: 2003
List received in 2018   Reference
• Accession: 22157
   - Local Name: GU 261-P
   - Year of Accession: 2007
List received in 2012   Reference
• Local Name: GU261/P
List received in 2011   Reference
• Local Name: GU 261/P
   - Year of Accession: 1994

 DISEASE

 Witches Broom
Resistant (Shoot (Field Reaction)).
Note: Population CAM 1
 Lachenaud, P., 2006
Resistant (Twigs and/or pods (Field Reaction)).
 Lachenaud, Ph. et al., 2007

 YIELD

 Frances Bekele & Gillian Bidaisee, 2016
Pod Index: 38.1 (pods per kg dried beans)
 Reference
 Lachenaud, Ph. et al., 2007
Productivity: very low
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2016
Colour: dark purple
Shape: elliptical
Number: 35.0
Total Wet Weight: 46.1 g
Cotyledon Dry Weight: 0.75 g
Cotyledon Length: 19.5 mm
Cotyledon Width: 11.9 mm
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2016
Shape: elliptical
Basal Constriction: strong
Apex Form: obtuse
Rugosity: moderate
Length: 151.0 mm
Breadth: 74.0 mm
Colour: anthocyanin absent
Note: Pod wall hardness > 1.6 MPa ? 2.0 MPa
 Reference

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2016
Ligule Colour: intense anthocyanin
Stamen Colour: intense anthocyanin
Sepal Length: 6.38 mm
Ligule Width: 2.40 mm
Ovule Number: 40
Style Length: 2.11 mm
Pedicel Colour: red
 Reference

French Guiana - CIRAD-CP (1994) Morphological characteristics of the clones held at CIRAD Guyane.. Data supplied to ICGD on computer diskette. Dr. Ph. Lachenaud, CIRAD Guyane.
Sallee, B. (1987) Compte rendu de prospection dans les populations naturelles de Theobroma cacao L. du Haut Camopi (Guyane Francais) 14/4 au 12/5/87.. Unpublished report, IRCC/CIRAD, 97387 Kourou, Guyane, pp. 45.
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.
CRU (2011) ICG,T accessions.. CRU website.
Lachenaud, P. (2006) Some characteristics of the GU clones held at the University of Reading.. Philippe Lachenaud, CIRAD, France. Personal Communication, September 2006.
Lachenaud, Ph., Paulin, D., Ducamp, M. & Thevenin, J.-M. (2007) Twenty years of agronomic evaluation of wild cocoa trees (Theobroma cacao L.) from French Guiana.. Scientia Horticulturae. 113: pp 313–321.
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.