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CL 10 /5    Theobroma cacao

 Pound, F.J. (1938)
Cacao and Witchbroom Disease of South America with notes on other species of Theobroma. . Archives of Cocoa Research 1: pp. 26-71.

Derivation: CLementina farm.
Collected by Pound.
Location: Dept. of Agriculture, ECU.

Notes:  Progeny from Hda Clementina, Ecuador planted at Marper Farm, Trinidad in 1939-41.

Pound, 1938a [POU38A]. Selections made from material of Trinidadian origin, originally to replace a planting of "Nacional" type that had failed due to Witches' broom disease. Seven of the eight parent trees (selected by Mr. Schuldt) were of a half blanco, long oval, warty, green pod type and the eighth was a long oval smooth white base type, more than partially pigmented.

Pound, 1943b [POU43B]. Seeds were collected from the following trees: 9,10,13,15,19,22,27,78,91 and Mixed.

Bartley, 1996c [BAR96C]. The "Mixed" tree progeny mentioned above are probably those labelled CLM today.

Bartley, 1995a [BAR95A]. The CL series appear to consist of nine groups of progenies CL 9/.., CL 10/.., CL 13/.., CL 15/.., CL 19/.., CL 22/.., CL 27/.., CL 78/.. and CL 91/.. refered to by Pound (1943b) [POU43B]. There are no other CL 1/ names listed and this therefore suggests a labelling error. Some may be in error for SL.
 

Synonyms: CL 105

 NOTES

Progeny from Hda Clementina, Ecuador planted at Marper Farm, Trinidad in 1939-41. Pound, 1938a [POU38A]. Selections made from material of Trinidadian origin, originally to replace a planting of "Nacional" type that had failed due to Witches' broom disease. Seven of the eight parent trees (selected by Mr. Schuldt) were of a half blanco, long oval, warty, green pod type and the eighth was a long oval smooth white base type, more than partially pigmented. Pound, 1943b [POU43B]. Seeds were collected from the following trees: 9,10,13,15,19,22,27,78,91 and Mixed. Bartley, 1996c [BAR96C]. The "Mixed" tree progeny mentioned above are probably those labelled CLM today. Bartley, 1995a [BAR95A]. The CL series appear to consist of nine groups of progenies CL 9/.., CL 10/.., CL 13/.., CL 15/.., CL 19/.., CL 22/.., CL 27/.., CL 78/.. and CL 91/.. refered to by Pound (1943b) [POU43B]. There are no other CL 1/ names listed and this therefore suggests a labelling error. Some may be in error for SL.

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 1540     ICQC,R 
   - Local Name: CL 10/5
   - Year of Accession: 2005
List received in 2018   Reference
• Accession: 22128
   - Local Name: CL-10/5
   - Year of Accession: 2015
List received in 2011   Reference
• Local Name: CL 10/5

 DISEASE

 Phytophthora
Resistant, sp. P. palmivora (Pod).
Note: Fully grown, unripe detached pods (4-5 months old)
 A.D. Iwaro & D. R. Butler, 2003
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

 YIELD

 Frances Bekele & Gillian Bidaisee, 2016
Pod Index: 19.3 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2016
Colour: purple
Shape: elliptical
Number: 39.0
Total Wet Weight: 73.0 g
Cotyledon Dry Weight: 1.33 g
Cotyledon Length: 23.7 mm
Cotyledon Width: 12.3 mm
 Reference
 Trinidad - ICGT, 1998
Colour: purple
Shape: elliptical
Number: 41.0
Total Dry Weight: 72.2 g
Cotyledon Dry Weight: 1.16 g
Cotyledon Length: 22.0 mm
Cotyledon Width: 11.6 mm
 Reference

 BUTTERFAT

 Trinidad - CRU, 1998
Butterfat Content: 47.61 %
Testa: 5.37 %
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2016
Shape: elliptical
Basal Constriction: moderate
Apex Form: acute
Rugosity: moderate
Length: 184.0 mm
Breadth: 88.0 mm
Colour: moderate anthocyanin
Note: Pod wall hardness > 2.0 MPa
 Reference
 Trinidad - ICGT, 1998
Shape: angoleta
Basal Constriction: moderate
Apex Form: acute
Rugosity: moderate
Colour: moderate anthocyanin
Hardness: hard
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 1540
Light Saturated Photosynthetic Rate: 5.96 μmol m2 s-1
Stomatal Conductance: 0.13 mol m2 s-1
Transpiration Rate: 1.31 mmol m2 s-1
Intrinsic Water Use Efficiency: 54.68 μmol mol-1
Instantaneous Water Use Efficiency: 4.83 mmol mol-1
Flush Size: 6
Leaf Area: 170.50 cm2
Leaf Dry Weight: 1.01 g
Specific Leaf Area: 177.40 cm2 g-1
 Reference

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2016
Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 6.43 mm
Ligule Width: 2.37 mm
Ovule Number: 48
Style Length: 2.45 mm
Pedicel Colour: red
 Reference
 Trinidad - ICGT, 1998
Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 6.40 mm
Ligule Width: 2.31 mm
Ovule Number: 48
Style Length: 2.39 mm
Pedicel Colour: slight anthocyanin
 Reference

Pound, F.J. (1938) Cacao and Witchbroom Disease of South America with notes on other species of Theobroma. . Archives of Cocoa Research 1: pp. 26-71.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3).. Personal communication.
CRU (2011) ICG,T accessions.. CRU website.
A.D. Iwaro & D. R. Butler (2003) Sources of Resistance to Phytophthora Pod Rot at the International Cocoa Genebank, Trinidad . In: Proceedings of the 14th International Cocoa Research Conference, Accra, Ghana (October 2003). Cocoa Producers' Alliance, Lagos, Nigeria.
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 (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.
Trinidad - ICGT (1998) Flower and fruit descriptions.. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies
Trinidad - CRU (1998) Fat Analysis Data.. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
Fiona Lahive (2017) Phenotypic data from climate change trials.. Personal communication.