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MO 80    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: MOQ 80, MORONA 80

'Nacional' Population
Subgroup: 'Morona'   Reference

 HELD IN

 Trinidad and Tobago, International Cocoa Genebank, Trinidad (ICG,T)
List received in 2011   Reference
• Local Name: MO 80

Tolerant
 Pound, F.J., 1943

Pod Index: 26.4 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 48.0
Total Wet Weight: 56.8 g
Cotyledon Dry Weight: 0.79 g
Cotyledon Length: 19.9 mm
Cotyledon Width: 11.5 mm
 Reference

Testa: 5.00 %
 Reference

Shape: elliptical
Basal Constriction: strong
Apex Form: acute
Rugosity: intense
Length: 164.0 mm
Breadth: 82.0 mm
Colour: anthocyanin absent
Hardness: moderate
Note: Hardness > 1.6 and <= 2.0 Mpa
 Reference

Colour: slight anthocyanin
 Reference

Ligule Colour: anthocyanin absent
Stamen Colour: anthocyanin absent
Sepal Length: 7.41 mm
Ligule Width: 2.38 mm
Ovule Number: 43
Style Length: 2.32 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.
Pound, F.J. (1943) First report on the selection of cacao trees for resistance to Witches' Broom disease. Unpublished report, Ministry of Agriculture, Trinidad.
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 Unpublished data on fruit, bean, flower and flush morphology supplied as an Excel spreadsheet by Frances Bekele.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.