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RIM 39 [MEX]    Theobroma cacao

 Hunter, J.R. (1961)
The status of cacao variety improvement work in the Western Hemisphere. Cacao (Costa Rica) 4: pp. 1-16.

Derivation: Rosario Izapa Mexico.
Collected by del Arco & Spencer.
Location: Tuxclachico, Chiapas, Mexico.

Hunter, 1961a [HUN61A]. Fruit - Long, thin Soconusco type. Seed - white. Bartley, 1997a [BAR97A]. Most of the genotypes are very similar with regard to their vegetative and floral characteristics. The fruit shapes also show very little variation as do most other fruit characteristics. Most of these genotypes have fruit with a light green colour and the others have some degree of anthocyanin pigmentation.

Notes:  Hunter, 1961 [HUN61A] Selections from Hda La Rioja. Selections from the Pacific coast with some MATINA genes.

In the original format of the name was composed of a number with "R" or "RIM" as suffix to that.
 

Synonyms: R 39 [MEX]

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 487     ICQC,R 
   - Local Name: RIM 39 [MEX]
   - Year of Accession: 1994
List received in 2018   Reference
• Accession: 10427
   - Local Name: RIM-39
   - Year of Accession: 1960
List received in 2012   Reference
• Local Name: RIM 39
   - Year of Accession: 1993
List received in 2012   Reference
• Local Name: RIM 39
   - Year of Accession: 1991
List received in 2012   Reference
• Local Name: R39
List received in 1994   Reference
• Local Name: R 39 [MEX]
   - Year of Accession: 1955
List received in 2008   Reference
• Accession: VTLC 182
   - Local Name: RIM-39
List received in 1992   Reference
• Local Name: RIM 39 [MEX]
   - Year of Accession: 1945
List received in 1972   Reference
• Local Name: R 39 [MEX]

 YIELD

 Frances Bekele & Gillian Bidaisee, 2022
Pod Index: 23.7 (pods per kg dried beans)
 Reference
 Lopez-Baez, O., 1995
Seed Index: 78.1 (dried beans per 100g)
Pod Index: 18.5 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2022
Colour: dark purple
Shape: elliptical
Number: 38.0
Total Wet Weight: 58.4 g
Cotyledon Dry Weight: 1.11 g
Cotyledon Length: 22.2 mm
Cotyledon Width: 13.0 mm
 Reference
 Lopez-Baez, O., 1995
Number: 26.9
Length: 22.9 mm
Width: 13.6 mm
Thickness: 9.5 mm
Dry Weight: 1.39 g
Cotyledon Dry Weight: 1.28 g
 Reference

 BUTTERFAT

 Frances Bekele & Gillian Bidaisee, 2022
Testa: 4.50 %
 Reference
 Lopez-Baez, O., 1995
Testa: 7.91 %
 Reference

 FRUIT

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 Frances Bekele & Gillian Bidaisee, 2022
Shape: elliptical
Basal Constriction: strong
Apex Form: attenuate
Rugosity: intense
Length: 184.0 mm
Breadth: 72.0 mm
Colour: moderate anthocyanin
 Reference
 Costa Rica - CATIE, 1981
Basal Constriction: slight
Apex Form: acute
Rugosity: moderate
Colour: slight / negligible - slight anthocyanin (ridge/furrow)
 Reference
 Lopez-Baez, O., 1995
Shape: cundeamor
Rugosity: intense
Husk Thickness: 14 mm (11 - 17)
Length: 229.0 mm
Breadth: 85.0 mm
Colour: red and yellow
Weight: 592.6 g
Husk Weight: 465.10 g
Length Breadth Ratio: 2.69
 Reference
 Morera, J. et al., 1991
Shape: angoleta
Colour: red
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 487
Light Saturated Photosynthetic Rate: 5.57 μmol m2 s-1
Stomatal Conductance: 0.09 mol m2 s-1
Transpiration Rate: 1.19 mmol m2 s-1
Intrinsic Water Use Efficiency: 69.14 μmol mol-1
Instantaneous Water Use Efficiency: 4.91 mmol mol-1
Flush Size: 2
Leaf Area: 228.50 cm2
Leaf Dry Weight: 1.65 g
Specific Leaf Area: 139.70 cm2 g-1
 Reference

 FLUSH

 Frances Bekele & Gillian Bidaisee, 2022
Colour: intense anthocyanin
 Reference
 Costa Rica - CATIE, 1981
Colour: reddish brown
 Reference

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2022
Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 8.54 mm
Ligule Width: 2.49 mm
Ovule Number: 40
Style Length: 2.32 mm
Pedicel Colour: red
 Reference
 Lopez-Baez, O. & Mendel-Wong, D., 1992
Sepal Width: 2.40 mm
Sepal Length: 8.20 mm
Ligule Length: 4.10 mm
Ligule Width: 3.00 mm
Ovary Width: 1.00 mm
Ovary Length: 1.90 mm
Ovule Number: 44
Style Length: 2.60 mm
Staminode Length: 7.60 mm
Pedicel Length: 2.20 mm
 Reference

Hunter, J.R. (1961) The status of cacao variety improvement work in the Western Hemisphere. Cacao (Costa Rica) 4: pp. 1-16.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
Philippe Lachenaud (2012) CIRAD Montpellier Clone List (Excel Spreadsheet). Data supplied to ICGD by email. Dr. Philippe Lachenaud, CIRAD Montpellier, France, January 2012.
Philippe Lachenaud (2012) F. Guiana database, CIRAD-CP. Data supplied to ICGD by email. Dr. Philippe Lachenaud, CIRAD Montpellier, France, January 2012.
CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.
Guatemala - Los Brilliantes (1994) Lista de clones existentes en la Estacion de Investigacion y Produccion Agricola "Los Brillantes" a Agosto 1994. M.T. Reyes Barrios, EIAP Guatemala. Personal Communication.
CPCRI (2008) Cocoa germplasm maintained at the Central Plantation Crops Research Institute (CPCRI) Regional Station, Vittal, India. Data supplied to ICGD by email. D. Balasimha, CPCRI Vittal, India, July 2008.
Lopez-Baez, O., Mulato-Brito, J. & Lopez-Arroyo, J. (1992) Recursos geneticos del cacao, Theobroma cacao L. disponibles en Mexico. Agricultura Tecnico Mexicana 18(1-2): pp. 25-38.
Perez, A.Z., Reyes, H.E. & Reyes, L.C. (1972) Programa de mejoramiento genetico de cacao en Venezuela. MAC, Caucagua, Venezuela, pp. 131.
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.
Lopez-Baez, O. (1995) Caracteristicas del fruto del germoplasma de cacao, Theobroma cacao L., seleccionado en Rosario Izapa, Chiapas. Agricultura Tecnico Mexicana 21(2): pp. 127-137.
Costa Rica - CATIE (1981) Genetic Resources of Cacao. A Catalogue of the CATIE Collection. J.M.M. Engels, Tropical Agricultural Research and Training Centre, CATIE, Turrialba, Costa Rica. Technical Bulletin No. 7: pp. 191.
Morera, J., Paredes, A. & Mora, A. (1991) Germoplasma de cacao en el CATIE entre 1947 y 1991, Programa II: Generacion y transferencia de tecnologia. IICA, San Jose, Costa Rica, pp. 49.
Fiona Lahive (2017) Phenotypic data from climate change trials. Personal communication.
Lopez-Baez, O. & Mendel-Wong, D. (1992) Caracteristicas de la flor y semilla del germoplasma de cacao, Theobroma cacao L., seleccionado en Rosario Izapa, Chiapas. Agricultura Tecnico Mexicana 18(1-2): pp. 39-48.