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AMAZ 10 /1    Theobroma cacao

 Chalmers, W.S. (1973)
Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.

Derivation: r. AMAZonas.
Collected by INIAP/UWI Chalmers.
Location: R. Amazonas nr Iquitos, Ecuador.

(Chalmers, 1973a [CHA73A]) AMAZ 3 [CHA] to AMAZ 10 [CHA] and AMAZ 15 [CHA] were selected from a planted area of cocoa with trees showing a range of pod types from five pairs of very distinct, slightly rugose ridges to a very smooth ridgeless calabacillo type. Most had a slight bottleneck and several had a pronounced "blanco" foundation colour. Several pods showed a very characteristic slightly rough, minutely pimpled surface. Some had a very hard pod wall (AMAZ 5, 7 and 8 [CHA]). The number of seeds per pod varied between 11 and 49. All the seeds were dark purple, generally small to medium in size and, within the same pod, plump and flattish seed occured. Only AMAZ 3 [CHA] and AMAZ [15] showed any Witches broom infection. AMAZ 11and AMAZ 12 were collected from Iquitos island, where Pound collected the IMC family. Many of the trees growing in the farm had pods very similar to those of IMC 67 although AMAZ 12 had a more Amelonado shaped pod with a fairly hard shell. AMAZ 13 [CHA] and AMAZ 14 [CHA] had marked pigmentation in the flush. The peduncles were pigmented but not the stamens. The young pods were smooth and Amelonado shaped. The petioles were distinctively short, thick and without any constriction.

Notes:  Collected in 1973.

Bartley, 1997b [BAR97B] The seed collected on this expedition was divided between Trinidad and Ecuador. At present only the data on the seedling progeny at Trinidad is available.
 

 Bartley, B.G.D. (1997)
Comments made by Dr. Bartley during his visit to Reading (4th - 15th August 1997). B.G.D.Bartley. Personal Communications.

Notes:  The seed collected on this expedition was divided between Trinidad and Ecuador. At present only the data on the seedling progeny at Trinidad is available.
 

Synonyms: AMA 10 /1 [CHA], AMAZONAS 10 /1, G VI 202, AMAZON 10 /1

Location: R. Amazonas, Loreto, Peru (cocoa plantation)
Date: April 1973
Coordinates: 73.10 W, 3.45 S
Material collected: Seed
Notes: Iquitos San Jose de Bufeo. 15 min up river from AMAZ 2.
Expedition Code: 73CH
   Chalmers, W.S., 1973

 Parents:
AMAZ 10  x Unknown   Bartley, B.G.D., 1997

 HELD IN

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List received in 2012   Reference
• Accession: 929
   - Local Name: AMAZON 10-1
• Accession: 929
   - Local Name: AMAZON 10-1
List received in 2018   Reference
• Accession: 21911
   - Local Name: AMAZ-10/1
   - Year of Accession: 2005
List received in 2012   Reference
• Local Name: AMAZ10/1
   - Year of Accession: 1991
 India, Central Plantation Crops Research Institute (CPCRI)
List received in 2008   Reference
• Accession: VTLC 155
   - Local Name: AMAZ-10/1
List received in 1997   Reference
• Accession: 202
   - Local Name: AMAZ 10 /1 [CHA]
   - Year of Accession: 1992
List received in 2008   Reference
• Accession: IDN-13-TCAC-00653
   - Local Name: AMAZ 10/1 (CHA
List received in 2011   Reference
• Local Name: AMAZ 10/1 [CHA]

Pod Index: 27.0 (pods per kg dried beans)
 Reference

Colour: dark purple
Shape: elliptical
Number: 43.0
Total Wet Weight: 56.6 g
Cotyledon Dry Weight: 0.86 g
Cotyledon Length: 23.2 mm
Cotyledon Width: 12.7 mm
 Reference

Testa: 5.70 %
 Reference

Shape: elliptical
Basal Constriction: moderate
Apex Form: indented
Rugosity: slight
Length: 148.0 mm
Breadth: 84.0 mm
Colour: anthocyanin absent
 Reference

Colour: moderate anthocyanin
 Reference

Ligule Colour: intense anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 7.41 mm
Ligule Width: 2.30 mm
Ovule Number: 53
Style Length: 1.85 mm
Pedicel Colour: red
 Reference

Chalmers, W.S. (1973) Report on a visit to Ecuador, Peru, and Brasil, March 1st-April 15th 1973. Unpublished Report. Cocoa Research Unit, University of the West Indies, Trinidad. pp. 31.
Bartley, B.G.D. (1997) Comments made by Dr. Bartley during his visit to Reading (4th - 15th August 1997). B.G.D.Bartley. Personal Communications.
CEPEC (2012) Accession list for the CEPEC (Bahia, Brazil) collection. Dr. José Luis Pires, personal communication, February 2012.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
CRIG (2012) Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.
CPCRI (2008) Cocoa germplasm maintained at the Central Plantation Crops Research Institute (CPCRI) Regional Station, Vittal, India. Data supplied to ICGD by email. D. Balasimha, CPCRI Vittal, India, July 2008.
India - Kerala (1997) List of survivng clones from all the introductions. R.V. Nair, Kerala Agricultural University, India. Personal Communication.
Susilo, A. (2008) The list of germplasm collected by ICCRI. Personal communication from Agung Susilo, July 2008.
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.