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SCA 7    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.

Collected by Pound.
Location: Rio Ucayali, Peru.

Notes:  Pound, 1943b [POU43B]. 22 plants were planted at Marper farm.

Bartley, 1993a [BAR93A]. Fausto Coral said that SCA stands for Sabino Contamana. Bartley considers that it is likely that the material comes from the town known to Pound as Contamana (on the R. Ucayali) since these progenies are very similar to P 31 [POU] from this area. Miguel Aspiazu (who accompanied Pound in Ecuador) said SCA came from Sabino and this may have been misinterpreted as SCAVINA.

UK - CABI Bioscience, 1998 [CAB98A] During surveys of Theobroma and Herrania spp. along the Amazon and Ucayali rivers (Pucallpa-Iquitos) in Octobet 1998, the local guide provided some detailed information on the history of the region. It seems the origin of the Scavinas is near to Iquitos around the Nanay river, from a Hacienda owned by the ESCAVINO family. The farm goes back to the pre-1930's but most of it has now been destroyed as the river Nanay has changed its course. This story, and the corruption of the name, was confirmed by a respected Peruvian agronomist, Reynaldo Crespo, who worked in the region 40 years ago.
 

Synonyms: SCAVINA 7

'Contamana' Population
Subgroup: 'Scavina'   Reference

 HELD IN

 Nigeria, Cocoa Research Institute of Nigeria (CRIN)
List received in 1994   Reference
• Local Name: SCA 7
   - Year of Accession: 1968
List received in 2011   Reference
• Local Name: SCA 7

Pod Index: 38.6 (pods per kg dried beans)
 Reference

Size: small
 Reference
Colour: dark purple
Shape: elliptical
Number: 32.0
Total Wet Weight: 41.3 g
Cotyledon Dry Weight: 0.81 g
Cotyledon Length: 20.1 mm
Cotyledon Width: 11.1 mm
 Reference

Testa: 5.90 %
 Reference

Size: medium
 Reference
Shape: oblong
Basal Constriction: moderate
Apex Form: attenuate
Rugosity: moderate
Length: 160.0 mm
Breadth: 63.0 mm
Colour: anthocyanin absent
 Reference

Colour: moderate anthocyanin
 Reference

Distance from Base to Widest Part: 111 mm
Length: 238.0 mm
Width: 85.0 mm
Length to Width Ratio: 2.80
Basal Angle: 111.6 °
Apical Angle: 80.7 °
Petiole Length: 6 mm
Pulvinus Length: 10 mm
 Reference

Self Compatibility: self incompatible
 Reference
Ligule Colour: anthocyanin absent
Stamen Colour: slight anthocyanin
Sepal Length: 7.28 mm
Ligule Width: 2.24 mm
Ovule Number: 35
Style Length: 2.82 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
Nigeria - CRIN (1994) CRIN Cocoa germplasm. S.A. Olatoye, CRIN, Nigeria. Personal Communication.
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.
Bartley, B.G.D. (1970) A preliminary catalogue of the cacao germplasm held at the University of the West Indies, Trinidad. University of the West Indies, St. Augustine, Trinidad.
Trinidad - ICGT (1992) Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.