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MO 76    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: river MOrona.
Collected by Pound.
Location: R. Morona, Peru.

Pound, 1938a [POU38A]. Fruit - Short, oval, warty, some types with red tint.

Notes:  Collected in 1937.

Pound, 1938a [POU38A]. Pods may have been collected from one tree with no Witches Broom infection.

Bartley, 1993a [BAR93A]. It is likely that accessions recorded with high numbers (>100?) are probably MOQ accessions since Pound, 1943b [POU43B] states that 80 plants were planted at Marper farm.

Synonyms: MORONA 76

'Nacional' Population
Subgroup: 'all'   Reference


 Xavier Argout et al., 2023
BioProject: PRJNA880462   NCBI   ENA FASTQ 
Library Source: Genomic
Run: SRR21562035   NCBI   ENA FASTQ 
Experiment: SRX17564544
BioSample: SAMN30841476
SampleName: MO_76

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List received in 2012   Reference
• Accession: 1276
   - Local Name: MO 76
List received in 2012   Reference
• Local Name: MO-76
List received in 2011   Reference
• Local Name: MO 76

Resistant (Field Reaction).
 Butler, D.R. et al., 1998
 Sreenivasan, T.N., 1987

Pod Index: 34.2 (pods per kg dried beans)

Colour: purple
Shape: elliptical
Number: 45.0
Total Wet Weight: 48.2 g
Cotyledon Dry Weight: 0.65 g
Cotyledon Length: 19.5 mm
Cotyledon Width: 9.9 mm

Testa: 7.80 %

Shape: elliptical
Basal Constriction: moderate
Apex Form: obtuse
Rugosity: moderate
Length: 157.0 mm
Breadth: 87.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa

Colour: slight anthocyanin

Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 7.65 mm
Ligule Width: 2.10 mm
Ovule Number: 47
Style Length: 2.41 mm
Pedicel Colour: reddish

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.
Motamayor, J.C., Lachenaud, P., da Silva e Mota, J.W., Loor, R., Kuhn, D.N., Brown, J.S. & Schnell, R.J. (2008) Geographic and Genetic Population Differentiation of the Amazonian Chocolate Tree (Theobroma cacao L). PLoS ONE 3(10): e3311. doi:10.1371/journal.pone.0003311
Xavier Argout, Gaetan Droc, Olivier Fouet, Mathieu Rouard, Karine Labadie, Bénédicte Rhoné, Gaston Rey Loor & Claire Lanaud (2023) Pangenomic exploration of Theobroma cacao: New Insights into Gene Content Diversity and Selection During Domestication. bioRxiv preprint
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.
Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, personal communication, February 2012.
CRU (2011) ICG,T accessions. CRU website.
Butler, D.R., Iwaro, A.D., Thevenin, J.-M., Bekele, F., Sounigo, O., Christopher, Y. & Mooledhar, V. (1998) Individual Institute Reports - Trinidad & Tobago, CRU. Report on the IPGRI project: Cocoa Germplasm Utilisation and Conservation, A Global Approach. Appendix to General Progress Report of Year 1.
Sreenivasan, T.N. (1987) ICGT Germplasm at Marper Farm showing freedom from cushion Brooms and vegetative brooms. Unpublished report, CRU, Trinidad and Tobago.
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.