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OC 66 [VEN] Group Name Theobroma cacao

Reyes, H.E., Perez, A.Z., Reyes, L.C. de & Wagner O., M. de J. (1973)
Catalogo de cultivares de cacao ( Theobroma cacao L.). Estacion Experimental de Caucagua, Caucagua, Venezuela. pp. 131.

Derivation: OCumare de la costa.
Collected by A. Hernandez.
Location: Oc. de la Costa, Aragua, Venezuela.

Notes: Bartley, 1998a [BAR98A] The region of Ocumare de la Costa contained various cocoa plantations, but the name also applies to the port on the coast and the river valley. The name of any one of these three things may have orginally been applied to cocoa germplasm. The region's cocoa plantations were planted with a pure Criollo variety up to 1860 after which they were destroyed by Ceratocystis. The region was then replanted with varieties more resisitant to disease, which came from Trinidad, but which were not pure Criollo. At the end of the nineteenth Century "Ocumare" was brought to Trinidad and seed was then sent from Trinidad labelled "Ocumare". "Ocumare" material in Venezulela has some criollo characteristics but is not pure criollo, but material sent of West Africa as "Ocumare" would have been the pure criollo type and not the same as is currently in Venezuela.

OC [VEN] includes two groups of selections. OC 1 - 77 are those made in the 1940's by Manuel Palmer and those with numbers higher than this are those selections listed in Reyes et al. 1993.

Those OC [VEN] clones included in the ICGD with a suffix, i.e. OC 60/1 - OC 60/36, OC 61/1 - OC 61/30, OC 63/1 - OC 63/24, OC 73/1 - OC 73/42 may be CIRAD selections; seed progenies of material planted in the Cote d'Ivoire.

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Synonyms: VLA 3 [VEN], OCUMARE 66 [VEN], VLA PV 3 [VEN]

COLLECTION DETAILS

Location: Ocumare de la Costa, Aragua, Venezuela

Coordinates: 67.40 W, 10.30 S

Marita, J. M. et al., 2001

PEDIGREE DETAILS

Mother to:: O 14 [VE2] Reyes, H.E. et al., 1973

Reference

Reyes, H.E., Perez, A.Z., Reyes, L.C. de & Wagner O., M. de J. 1973
Catalogo de cultivares de cacao ( Theobroma cacao L.). Estacion Experimental de Caucagua, Caucagua, Venezuela. pp. 131.
Notes

Venezuela - Estaçion Experimental de Caucagua Datafile: MAC___DS VEN - MAC Cauagua 1 PROGENY_ Germplasm: Information on 60 Venezuelan clones is presented which include Criollo, Forastero and hybrid types. Environment: No details. Descriptors: Pod, bean and flower characteristics are described together with some information on disease/pest reactions and yield. In some cases additional information on reaction to pests and diseases is supplied.

Disease Pests Yield Bean Fruit Flush Leaf Flower

HELD IN

Brazil, Comissão Executiva do Plano da Lavoura Cacaueira/Centro de Pesquisas do Cacau (CEPLAC/CEPEC): List received in 2012 Reference

Reference

CEPEC 2012
Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.; • Accession: 232; - Local Name: OC 66; - Year of Accession: 1980
Venezuela, MAC Caucagua: List received in 1974 Reference

Reference

Zamora, A.P., Reyes, H.E. & Reyes, L.C. 1974
Programa de mejoramiento genetico de cacao en Venezuela. In: Proceedings of the 4th International Cocoa Conference, 1972, St. Augustine, Trinidad. (Cocoa Research Unit, Trinidad), pp. 57-68.; • Local Name: OC 66 [VEN]

DISEASE

Witches Broom: Intermediate (Seedling).; Luz, E.D.M.N. & Silva, S.D.V.M., 1997

Reference

Luz, E.D.M.N. & Silva, S.D.V.M. 1997
Evaluating resistance/tolerance to Witches' Broom disease in Bahia, Brazil. Final Report to ACRI. CEPLAC/CEPEC, February, 1997. pp. 56. Data supplied to ICGD by Luz & Silva.
Notes

Brazil - CEPEC, Bahia Datafile: DIS_WBDS - Disease reaction to Witches' Broom Experimental Conditions: Basidiospores were obtained from basidiocarps produced on brooms from Camacan, BA, Brazil, the source area of all inoculum used to screen germplasm. Brooms were hung inside "broom chambers" (vassoureiros) and kept in an 8 hr wet/16 hr dry environment as described by Suarez-Capello (1977) and Rocha and Wheeler (1985). Basidiospores were collected in a 16 percent glycerol solution and stored in liquid nitrogen as described by Frias et al (1995) prior to the inoculation tests. Basidiospore germination tests were performed spraying water-agar plates with the basidiospore suspension kept in liquid nitrogen the day before and immediately after the inoculation. The number of germinated basidiospores were recorded after 24 hr and the inoculum concentration adjusted to the number of viable basidiospores. Suspensions with spore germination of less than 75 percent were not used. At least 112 seedlings, divided in 4 replications of 28 seedlings each, of each of the 176 families obtained from open pollinated seeds planted in tubes with sterilized soil were inoculated when presenting a new flush with at least one leaf 1.5 cm long. 1 ml of a suspension of 75,000 basidiospores of C. pernisiosa/ml were sprayed by the automated inoculation system (Frias at al 1995). Plants were then kept in an incubation chamber for 24 hr at 24 degrees centigrade with 100 percent relative humidity. Individual plant responses were recorded 60 days after inoculation. In all inoculation tests performed SCA 6 and SCA 12 were included as standard resistant progenies and CATONGO as a standard susceptible progeny. Disease - Crinipellis perniciosa (Marasmius perniciosa) (local names: Witches' Broom Disease, Escoba de bruja, Balai de sorciere, Vassoura de bruxa).

Disease; Resistant (Field Reaction).; Luz, E.D.M.N. & Silva, S.D.V.M., 1997

Reference

Luz, E.D.M.N. & Silva, S.D.V.M. 1997
Evaluating resistance/tolerance to Witches' Broom disease in Bahia, Brazil. Final Report to ACRI. CEPLAC/CEPEC, February, 1997. pp. 56. Data supplied to ICGD by Luz & Silva.
Notes

Brazil - CEPEC, Bahia Datafile: DIS_WBDS - Disease reaction to Witches' Broom Experimental Conditions: Basidiospores were obtained from basidiocarps produced on brooms from Camacan, BA, Brazil, the source area of all inoculum used to screen germplasm. Brooms were hung inside "broom chambers" (vassoureiros) and kept in an 8 hr wet/16 hr dry environment as described by Suarez-Capello (1977) and Rocha and Wheeler (1985). Basidiospores were collected in a 16 percent glycerol solution and stored in liquid nitrogen as described by Frias et al (1995) prior to the inoculation tests. Basidiospore germination tests were performed spraying water-agar plates with the basidiospore suspension kept in liquid nitrogen the day before and immediately after the inoculation. The number of germinated basidiospores were recorded after 24 hr and the inoculum concentration adjusted to the number of viable basidiospores. Suspensions with spore germination of less than 75 percent were not used. At least 112 seedlings, divided in 4 replications of 28 seedlings each, of each of the 176 families obtained from open pollinated seeds planted in tubes with sterilized soil were inoculated when presenting a new flush with at least one leaf 1.5 cm long. 1 ml of a suspension of 75,000 basidiospores of C. pernisiosa/ml were sprayed by the automated inoculation system (Frias at al 1995). Plants were then kept in an incubation chamber for 24 hr at 24 degrees centigrade with 100 percent relative humidity. Individual plant responses were recorded 60 days after inoculation. In all inoculation tests performed SCA 6 and SCA 12 were included as standard resistant progenies and CATONGO as a standard susceptible progeny. Disease - Crinipellis perniciosa (Marasmius perniciosa) (local names: Witches' Broom Disease, Escoba de bruja, Balai de sorciere, Vassoura de bruxa).

Disease

FRUIT

Brazil - CEPEC, 1987: Rugosity: intense; Reference

Reference

Brazil - CEPEC 1987
List of clones in the CEPEC, Bahia, Brazil collection. Computer printout from CEPEC. Supplied by B.G.D. Bartley, CEPEC, Brazil.
Notes

Brazil - CEPEC, Itabuna, Bahia Datafile: CEPEC_DS BRA - CEPEC 1 PROGENY_ Germplasm: 564 accessions mainly of Brazilian origin. Environment: No details. Descriptors: Information on compatability pod characteristics and type of cocoa is given.

Bean Fruit Flower

REFERENCES

Reyes, H.E., Perez, A.Z., Reyes, L.C. de & Wagner O., M. de J. (1973) Catalogo de cultivares de cacao ( Theobroma cacao L.). Estacion Experimental de Caucagua, Caucagua, Venezuela. pp. 131.

Marita, J. M., Nienhuis, J., Pires, J. L. & Aitken, W. M. (2001) Analysis of Genetic Diversity in Theobroma cacao with Emphasis on Witches’ Broom Disease Resistance. Crop Sci. 41:1305–1316.

CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.

Zamora, A.P., Reyes, H.E. & Reyes, L.C. (1974) Programa de mejoramiento genetico de cacao en Venezuela. In: Proceedings of the 4th International Cocoa Conference, 1972, St. Augustine, Trinidad. (Cocoa Research Unit, Trinidad), pp. 57-68.

Luz, E.D.M.N. & Silva, S.D.V.M. (1997) Evaluating resistance/tolerance to Witches' Broom disease in Bahia, Brazil. Final Report to ACRI. CEPLAC/CEPEC, February, 1997. pp. 56. Data supplied to ICGD by Luz & Silva.

Brazil - CEPEC (1987) List of clones in the CEPEC, Bahia, Brazil collection. Computer printout from CEPEC. Supplied by B.G.D. Bartley, CEPEC, Brazil.