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M 252 [ICT]    Theobroma cacao

 Bartley, B.G.D. (1993)
Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.

Derivation: Miscellaneous/Museum.
Location: ICTA St. Augustine, Trinidad and Tobago.

Notes:  Museum plot selections at the old cotton growing station, St. Augustine.

Bartley, 1993a [BAR93A]. Formerly recorded as M = Miscellaneous. Some M clones planted elsewhere on ICTA campus, St. Augustine. Includes Hart's Trinidad criollos, selections from Costa Rica, Ecuador, Brazil and mutant types.

Bartley, 1995a [BAR95A]. About four clones from the United Fruit Company's programme in Costa Rica were supplied to ICTA in the 1930's and included in the M series. M 116 was suspected to be UF 613 and the parent of Posnette's T 9.
 

Synonyms: M 252 /13-1 [ICT]

 HELD IN

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List received in 1994   Reference
• Local Name: M 252 /13-1 [ICT]
   - Year of Accession: 1992
List received in 1998   Reference
• Local Name: M 252 /13-1 [ICT]
   - Year of Accession: 1991
 Trinidad and Tobago, International Cocoa Genebank, Trinidad (ICG,T)
List received in 2011   Reference
• Local Name: M 252 [ICT]

Pod Index: 21.5 (pods per kg dried beans)
 Reference

Colour Dark Purple: Present
Size: small
 Reference
Colour: dark purple
Shape: ovate
Number: 39.0
Total Wet Weight: 65.3 g
Cotyledon Dry Weight: 1.19 g
Cotyledon Length: 23.9 mm
Cotyledon Width: 13.4 mm
 Reference

Testa: 6.20 %
 Reference

Size: small
 Reference
Shape: elliptical
Basal Constriction: slight
Apex Form: acute
Rugosity: moderate
Length: 141.0 mm
Breadth: 86.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Colour: slight anthocyanin
 Reference

Self Compatibility: self incompatible
 Reference
Ligule Colour: moderate anthocyanin
Stamen Colour: moderate anthocyanin
Sepal Length: 7.70 mm
Ligule Width: 2.38 mm
Ovule Number: 43
Style Length: 2.16 mm
Pedicel Colour: red
 Reference

Bartley, B.G.D. (1993) Notes on the meaning and origins of clone names. B.G.D Bartley. Personal Communications.
Malaysia - ARC Tuaran (1994) Accessions in the Malaysian Cocoa Board collection obtained from USDA Mayaguez since 1991. M.T. Lee, MCB, Malaysia. Personal Communication.
Malaysia - ARC Tuaran (1998) Accessions held in the Malaysian Cocoa Board collection, May 1998. K. Lamin, MCB, Malaysia, 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.