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PA 171 [PER]    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: PArinari.
Collected by Pound.
Location: Parinari, Peru.

Pound, 1938a: [POU38A] type 1 - long, generally warty pods with a pronounced bottleneck and a conspicuous point, type 2 - lack the pronounced bottleneck, type 3 - pods shorter and lack both the pronounced bottle neck and point, type 4 - smooth lagarta, ie with bottle neck and point but with shallow furrows and a smooth shell, type 5 - as type 1 but with very small beans, type 6 - short, 10 ridged oval, warty pods, sometimes with red tint. Posnette, 1945A [POS45A]. Parinari type has long petioles (2-3 cm) with pulvini separated by a long, deep constriction even when young. The stamen filaments are not pigmented.

Notes:  Selections from the region around Parinari.

Pound, 1938a [POU38A]. Pods probably collected from some 20 trees free of Witches' Broom in a population of type 1,2,3, and 4. Further collections may have made around Porvenir (between the Boca del Huallaga and Boca del Pastaza) from types 5 and 6.

Pound, 1943b [POU43B]. 277 plants were planted at Marper farm.

Bartley, 1998a [BAR98A] Parinari means tree and it is the name of a place on the River Amazon (Maranon) in Peru. However it is believed to refer to a region rather than a specific place. Types 5 and 6 were collected from along the whole stretch of the Maranon River.
 

Synonyms: PARINARI 171 [PER]

'Maranon' Population
Subgroup: 'Parinari IV'   Reference

 HELD IN

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List received in 1990   Reference
• Local Name: PA 171 [PER]
 Nigeria, Cocoa Research Institute of Nigeria (CRIN)
List received in 1994   Reference
• Local Name: PA 171 [PER]
   - Year of Accession: 1968
List received in 2011   Reference
• Local Name: PA 171 [PER]

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77.33 % Infection
Note: 15 plants sampled..
 Subali, S., 1992
Susceptible
 Butler, D.R. et al., 1998
Resistant (Field Reaction).
 Butler, D.R. et al., 1998
Tolerant
 Sreenivasan, T.N., 1987

Seed Index: 116.2 (dried beans per 100g)
Pod Index: 29.0 (pods per kg dried beans)
 Reference
Pod Index: 47.6 (pods per kg dried beans)
 Reference

Number: 40.2
Dry Weight: 0.86 g
 Reference
Colour: purple
Shape: elliptical
Number: 42.0
Total Wet Weight: 31.2 g
Cotyledon Dry Weight: 0.50 g
Cotyledon Length: 18.9 mm
Cotyledon Width: 9.9 mm
 Reference

Testa: 4.40 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: acute
Rugosity: moderate
Length: 153.0 mm
Breadth: 71.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

Colour: anthocyanin absent
 Reference

Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 6.31 mm
Ligule Width: 2.49 mm
Ovule Number: 42
Style Length: 1.97 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
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.
Subali, S. (1992) MARDI's results on performance of imported primary cocoa clones. In: Unpublished Proceedings of MCGC Mini-Seminar on the Performance of Imported Cocoa Clones, 13th October, 1992. Kuala Lumpur, Malaysia.
Butler, D.R., Iwaro, A.D., Thevenin, J.-M., Bekele, F., Sounigo, O., Christopher, Y. & Mooledhar, V. (1998) Individual Institute Reports - Trinidad & Tobago, CRU. Report on the IPGRI project: Cocoa Germplasm Utilisation and Conservation, A Global Approach. Appendix to General Progress Report of Year 1.
Sreenivasan, T.N. (1987) ICGT Germplasm at Marper Farm showing freedom from cushion Brooms and vegetative brooms. Unpublished report, CRU, Trinidad and Tobago.
Malaysia - Applied Agriculture (1992) Data from Applied Agriculture Research Unit (AARU). In: Unpublished Proceedings of MCGC Mini-Seminar on the Performance of Imported Cocoa Clones, 13th October 1992, Kuala Lumpur, Malaysia: pp. 4.
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.