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MO 118    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 118

'Nacional' Population
Subgroup: 'Morona'   Reference

 HELD IN

 Trinidad and Tobago, International Cocoa Genebank, Trinidad (ICG,T)
List received in 2011   Reference
• Local Name: MO 118

Pod Index: 30.0 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 45.0
Total Wet Weight: 54.1 g
Cotyledon Dry Weight: 0.74 g
Cotyledon Length: 19.0 mm
Cotyledon Width: 10.8 mm
 Reference

Testa: 5.50 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: acute
Rugosity: moderate
Length: 157.0 mm
Breadth: 82.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Colour: moderate anthocyanin
 Reference

Ligule Colour: slight anthocyanin
Stamen Colour: intense anthocyanin
Sepal Length: 7.98 mm
Ligule Width: 2.37 mm
Ovule Number: 43
Style Length: 2.38 mm
Pedicel Colour: reddish
 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.
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
CRU (2011) ICG,T accessions. CRU website.
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 Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele.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.