Search Results

SCA 20    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: SCA 20 /?, SCAVINA 20, SCAVINA 20 /?

Bartley, 1995a [BAR95A]. SCA 20 does not appear in the 1970 UWI inventory or in breeding programmes involving other SCA clones. It was probably planted on the UWI campus after 1970 together with other trees which although labelled SCA were not considered to be part of this group.

 HELD IN

Show Details Hide Details

List received in 1990   Reference
• Local Name: SCA 20
 Nigeria, Cocoa Research Institute of Nigeria (CRIN)
List received in 1994   Reference
• Local Name: SCA 20
   - Year of Accession: 1968
List received in 2011   Reference
• Local Name: SCA 20

26.10 % Infection (Field Reaction).
Note: 13.1% of trees with <30% infected branches, 8.6% of trees with 30 to 70% infected branches, 4.4% of trees with >70% infected branches.. Sime Darby Plantations, Devon Estate.
 Lam, K.S., 1992
Susceptible
 Lockwood, G., 1995

Pod Index: 22.9 (pods per kg dried beans)
 Reference
Seed Index: 74.7 (dried beans per 100g)
Pod Index: 26.5 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 45.0
Total Wet Weight: 56.7 g
Cotyledon Dry Weight: 0.97 g
Cotyledon Length: 21.1 mm
Cotyledon Width: 11.1 mm
 Reference
Number: 39.1
Dry Weight: 1.33 g
 Reference

Testa: 4.80 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: mammillate
Rugosity: moderate
Length: 158.0 mm
Breadth: 77.0 mm
Colour: anthocyanin absent
Hardness: moderate
Note: Hardness > 1.6 and <= 2.0 Mpa
 Reference

Colour: slight anthocyanin
 Reference

Ligule Colour: slight anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 6.33 mm
Ligule Width: 2.20 mm
Ovule Number: 47
Style Length: 2.27 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.
Malaysia - ARC Tuaran (1990) List of clones held in the Dept. of Agriculture's collection, at Sabah, Tuaran, Malaysia. E.B. Tay, Malaysian Cocoa Board, Malaysia. Personal Communication.
Nigeria - CRIN (1994) CRIN Cocoa germplasm. S.A. Olatoye, CRIN, Nigeria. Personal Communication.
CRU (2011) ICG,T accessions. CRU website.
Lam, K.S. (1992) Performance of imported clones in Sime Darby Plantations. In: Unpublished Proceedings of MCGC Mini-Seminar on the Performance of Imported Cocoa Clones, 13th October, 1992. Kuala Lumpur, Malaysia.
Lockwood, G. (1995) Notes on clonal resistance to vascular streak dieback. G. Lockwood, CDC, UK. Personal Communication.
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.