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GU 226 /V    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: 7 May 1987
Coordinates: 56.10 W, 2.30 N
Material collected: Seed
Notes: Crique Cacao (L.Bank). same tree as # 225
Expedition Code: 87GU
   Sallee, B., 1987

 PEDIGREE DETAILS

 Parents:
GU 226  x Unknown

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 1070     ICQC,R 
   - Local Name: GU 226/V
   - Year of Accession: 2000
List received in 2018   Reference
• Accession: 22017
   - Local Name: GU 226-V
   - Year of Accession: 2006
List received in 2012   Reference
• Local Name: GU226/V

 DISEASE

 Phytophthora
Resistant, sp. P. megakarya (Leaf Disc Test).
Note: Described as Very Resistant. Mean of lesion score = 0.59. Population Camopi 3
 Paulin, D. et al., 2008
Resistant, sp. P. palmivora (Leaf Disc Test).
Note: Strain TRI 1. Population Camopi 3
 Lachenaud, Ph. et al., 2007

 YIELD

 Lachenaud, Ph. et al., 2007
Productivity: medium
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 1070
Light Saturated Photosynthetic Rate: 5.50 μmol m2 s-1
Stomatal Conductance: 0.11 mol m2 s-1
Transpiration Rate: 1.59 mmol m2 s-1
Intrinsic Water Use Efficiency: 52.29 μmol mol-1
Instantaneous Water Use Efficiency: 3.46 mmol mol-1
Flush Size: 7
Leaf Area: 256.30 cm2
Leaf Dry Weight: 1.83 g
Specific Leaf Area: 142.30 cm2 g-1
 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.
Paulin, D., Ducamp, M. & Lachenaud, P. (2008) New sources of resistance to Phytophthora megakarya identified in wild cocoa tree populations of French Guiana.. Crop Protection. 27: pp 1143–1147.
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.
Fiona Lahive (2017) Phenotypic data from climate change trials.. Personal communication.