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U 59 [PER]    Theobroma cacao

 Arevalo, E., Garcia, L., Krauss, U., Rios, R., Zuniga, L. & Adriazola, J. (1996)
Mejoramiento genetico para el control de enfermedadaes del cacao en el Peru. Proceedings of the International Workshop on the Contribution of Disease Resistance to Cocoa Variety Improvement, INGENIC, Salvador, 24th-26th September, 1996. pp.127-133.

Derivation: river Ucayali.
Location: R. Ucayali, Peru.

Notes:  Arevalo et al, 1996 [ARE96A] The U [PER] (Ucayali) clones originated from abandoned fields in the Ucayali (U 1 [PER] to U 52 [PER]) and the Urubamba (U 53 [PER] to U 70 [PER]) river valleys which were under high disease pressure from Witches' Broom. Between the 28th November and 4th December 1987 the clones U 1 [PER] to U 11 [PER] from along the valley of the Ucayali and its tributaries: Contamana, San Carlos, Pampa Hermosa, Ucayali, Cushabatay and Lago Chiatipiishca. Clones U 12 [PER] to U 33 [PER] were collected from Contamana, Pampa Hermosa, Orellana, Juancito, Nueva Berlin, Tamanco, Pueblo Libre, Requena, Ucayali, Tapicho and Inahuaya. In June 1988 clones U 34 [PER] to U 52 [PER] were collected from Pucallpa, Contamana, Pampa Hermosa, Roaboya, Masisea, Puerto Inca, Puerto Sol, Ucayali, Pisque, Pachitea and Cushabetay. At the same time another group of clones (U 53 [PER] to U 70 [PER]) were collected from the Urubamba valley: Maranura, Quillabamba, Echarate, Suhuayacu, San Agustin, Quellouno, Chanchamayo, Limoniyoc, Ciriaco, Liteni, Korebeni, Santoato. On another expedition to the Urubamba - Sahayacu in January 1989 the clones U 71 [PER] to U 99 [PER] were collected for high productivity.
 

Synonyms: UCAYALI 58 [PER]

'Contamana' Population
Subgroup: 'all'   Reference

 HELD IN

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List received in 2012   Reference
• Accession: 1199
   - Local Name: U 59
• Accession: 1199
   - Local Name: U 59
• Accession: 1199
   - Local Name: U 59

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Absent (Trunk and Branches (Field Reaction)).
 Arevalo, E. et al., 1996
Present (Pod (Field Reaction)).
 Arevalo, E. et al., 1996
Present (Pod (Field Reaction)).
 Arevalo, E. et al., 1996
Absent (Pod (Field Reaction)).
 Arevalo, E. et al., 1996
Absent (Shoot (Field Reaction)).
 Arevalo, E. et al., 1996

Pod Index: 21.0 (pods per kg dried beans)
 Reference
Seed Index: 83.3 (dried beans per 100g)
Pod Index: 23.0 (pods per kg dried beans)
 Reference

Number: 36.0
Dry Weight: 1.20 g
 Reference

Butterfat Content: 56.00 %
 Reference

Ovule Number: 43
Self Compatibility: self incompatible
 Reference

Arevalo, E., Garcia, L., Krauss, U., Rios, R., Zuniga, L. & Adriazola, J. (1996) Mejoramiento genetico para el control de enfermedadaes del cacao en el Peru. Proceedings of the International Workshop on the Contribution of Disease Resistance to Cocoa Variety Improvement, INGENIC, Salvador, 24th-26th September, 1996. pp.127-133.
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
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.
Arevelo, E., Zuniga, L.., Adriazola, J., Garcia, L., Cabezas, O., Hart, A. & Rios, J. (1999) Clones Ucayali-Urubamba. Data file in Excel format sent to the ICGD by Enrique Arevalo, 17 December 1999.