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T 61 [POS] Group Name Theobroma cacao

Lockwood, G. & Gyamfi, M.M.O. (1979)
The CRIG cocoa germplasm collection with notes on codes used in the breeding programme at Tafo and elsewhere. Technical Bulletin, No. 10, Cocoa Research Institute, Tafo, Ghana. pp. 62.

Derivation: Trinidad.
Collected by Posnette.
Location: Ghana.

Notes: Vello et al. 1974 [VEL74A] Cacau Branco (White cocoa).

Lockwood & Gyamfi, 1979, [LOC79A] Another anthocyanin free mutant distinct from Almeida and Catongo.

Included in the SIAL series in previous versions of the ICGD but now understood to be a separate group of clones.

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PEDIGREE DETAILS

Parents:: NA 33 x NA 32 Adomako, B. & Adu-Ampomah, Y., 2000

Reference

Adomako, B. & Adu-Ampomah, Y. 2000
Reflections on the yield of Upper Amazon cocoa hybrids in Ghana with reference to breeding for cocoa swollen shoot virus resistant varieties. Cocoa Growers' Bulletin 52: 33-45.
Notes

Ghana - CRIG Datafile: PROGENY_

DISEASE

Phytophthora: Moderate Resistance, sp. P. megakarya (Pod).; Ghana - CRIG, 1995

Reference

Ghana - CRIG 1995
Black Pod Thrust. Annual Report of the Cocoa Research Institute, Ghana, 1994-95. pp. 83-106.
Notes

Ghana - CRIG Datafile: DIS_PHDS - Disease resistance to Phytophthora Descriptors: Observations of infection with P. megakarya in the field Environment: Open pollinated populations assessed for yield and black pod infection. Trees that combine high yields with low black pod losses were classified as resistant, whilst those with low yields with high black pod losses were susceptible. Germplasm: Upper Amazon populations of T 12 [POS], T 61 [POS], T 63 [POS], T 82 [POS]

Disease
Cocoa Swollen Shoot Virus: Tolerant; Enriquez, G. & Soria, V.J., 1977

Reference

Enriquez, G. & Soria, V.J. 1977
Mejoramiento genético para resistencia a cinco enfermedades del cacao. In: Proceedings of the 6th International Cocoa Research Conference, Caracas, Venezuela, 1977. Cocoa Producers' Alliance, Lagos, Nigeria. pp. 45-56.
Notes

Various data sources Review of disease data complied at Costa Rica - CATIE from sources including: Costa Rica - CATIE, Trinidad - CRU, University of the West Indies, Ghana - WACRI, Ecuador - Pichilingue. Datafile: DIS_MODS - Disease reaction to Monilia Pod Rot DIS___DS - Disease reaction to stress and disease DIS_PHDS - Disease reaction to Phytophthora DIS_SSDS - Disease reaction to CSSV DIS_WBDS - Disease reaction to Witches' Broom DIS_CEDS - Disease reaction to Ceratocystis Descriptors: Information on the type of disease/stress and the reaction of the clone.

Disease

REFERENCES

Lockwood, G. & Gyamfi, M.M.O. (1979) The CRIG cocoa germplasm collection with notes on codes used in the breeding programme at Tafo and elsewhere. Technical Bulletin, No. 10, Cocoa Research Institute, Tafo, Ghana. pp. 62.

Adomako, B. & Adu-Ampomah, Y. (2000) Reflections on the yield of Upper Amazon cocoa hybrids in Ghana with reference to breeding for cocoa swollen shoot virus resistant varieties. Cocoa Growers' Bulletin 52: 33-45.

Ghana - CRIG (1995) Black Pod Thrust. Annual Report of the Cocoa Research Institute, Ghana, 1994-95. pp. 83-106.

Enriquez, G. & Soria, V.J. (1977) Mejoramiento genético para resistencia a cinco enfermedades del cacao. In: Proceedings of the 6th International Cocoa Research Conference, Caracas, Venezuela, 1977. Cocoa Producers' Alliance, Lagos, Nigeria. pp. 45-56.