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AMAZ 1 /5 Group Name 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 Unpublished Report.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.

SNP/SSR Populations

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Synonyms: AMAZON 15, AMAZONAS 15, G VI 173, AMA 15 [CHA], AMAZ 15, AMZ 15

NOTES

No budwood was collected from this tree therefore this is not a clone. One pod was collected containing 18 seeds, 9 of which went to Trinidad and 9 to Ecuador. Clonal material with this name may be labelled in error for AMAZ 1/5 (or AMAZ 15/15). [AMAZ 15] Bartley, B.G.D., 1997

COLLECTION DETAILS

Location: R. Amazonas, Loreto, Peru (cocoa plantation)

Date: April 1973

Coordinates: 73.10 W, 3.45 S

Material collected: Seed

Notes: Iquitos farm 1hr up river (to Panguana) E bank near house

Expedition Code: 73CH

Chalmers, W.S., 1973

PEDIGREE DETAILS

Parents:: AMAZ 1 x Unknown Bartley, B.G.D., 1997

Reference

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

Trinidad - International Cocoa Genebank, CRU, University of the West Indies Datafile: PROGENY_

POPULATION

Motamayor, J.C. et al., 2008: 'Iquitos' Population; Subgroup: 'Amazonas' Reference

Reference

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
Population SSR

HELD IN

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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: 931; - Local Name: AMAZON 15; • Accession: 931; - Local Name: AMAZON 15
Brazil, Mars Center for Cocoa Science: List received in 2012 Reference

Reference

Mars Center for Cocoa Science 2012
Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, personal communication, February 2012.; • Local Name: AMAZ-15; - Year of Accession: 1995
Costa Rica, Centro Agronómico Tropical de Investigación y Enseñanza (CATIE): List received in 2018 Reference

Reference

Allan Mata 2018
Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
Notes

Excel file received by email.; • Accession: 21848; - Local Name: AMAZ-15; - Year of Accession: 2005
Ghana, Cocoa Research Institute of Ghana (CRIG): List received in 2012 Reference

Reference

CRIG 2012
Cocoa accessions held in the Cocoa Research Institute of Ghana (CRIG). Francis Kwame Padi, personal communication, February 2012.; • Local Name: AMAZON15
India, Central Plantation Crops Research Institute (CPCRI): List received in 2008 Reference

Reference

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.; • Accession: VTLC 157; - Local Name: AMAZ-15
India, Kerala Agricultural University: List received in 1997 Reference

Reference

India - Kerala 1997
List of survivng clones from all the introductions. R.V. Nair, Kerala Agricultural University, India. Personal Communication.; • Accession: 173; - Local Name: AMAZ 15 [CHA]; - Year of Accession: 1990
Indonesia, Indonesian Coffee and Cocoa Research Institute (ICCRI): List received in 2008 Reference

Reference

Susilo, A. 2008
The list of germplasm collected by ICCRI. Personal communication from Agung Susilo, July 2008.; • Accession: IDN-13-TCAC-00655; - Local Name: AMAZ 15 (CHA)
Indonesia, London Sumatra Plantations (LONSUM): List received in 2008 Reference

Reference

Haeser, E. 2008
Accession list for Bah Lias Research Station, PT.PP. London Sumatra, Indonesia. Personal communication, March 2010.; • Local Name: AMZ 15
Malaysia, Malaysian Cocoa Board (MCB): List received in 1998 Reference

Reference

Malaysia - ARC Tuaran 1998
Accessions held in the Malaysian Cocoa Board collection, May 1998. K. Lamin, MCB, Malaysia, Personal Communication.; • Local Name: AMAZON 15 [CHA]; - Year of Accession: 1993
Trinidad and Tobago, International Cocoa Genebank, Trinidad (ICG,T): List received in 2011 Reference

Reference

CRU 2011
ICG,T accessions. CRU website.
Notes

Website visited 12th April 2011

Link Unavailable [http://sta.uwi.edu/cru/icgt-accessions.asp]; • Local Name: AMAZ 15 [CHA]

DISEASE

Phytophthora: Moderate Resistance, sp. P. palmivora (Leaf).; Kebe, 1999

Reference

Kebe 1999
Data from Cote d'Ivoire on black pod resistance. Kebe, report on CAOBISCO project. Forwarded to ICGD by Dr. A.B.Eskes, IPGRI.
Notes

Cote d'Ivoire - Divo Datafile: DIS_PHDS - Disease reaction to Phytophthora Descriptors: Resistance based on leaf disk inoculation Environment and Germplasm: 53 Clones held at Divo, Cote d'Ivoire

Disease
Witches Broom: Resistant (Field Reaction).; Butler, D.R. et al., 1998

Reference

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.
Notes

Trinidad - ICG,T, University of the West Indies Datafile: DIS_PHDS - Disease reaction to Phytophthora DIS_WBDS - Disease reaction to Witches' Broom DIS_VSDS - Disease reaction to VSD DIS_CEDS - Disease reaction to Ceratocystis Descriptors: General observations and main traits of genotypes Environment: No details Germplasm: Clones included in the CFC/ICCO/IPGRI Cocoa Germplasm Utilisation and Conservation project.

Disease

YIELD

Frances Bekele & Gillian Bidaisee, 2022: Pod Index: 21.4 (pods per kg dried beans); Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

BEAN

Frances Bekele & Gillian Bidaisee, 2022: Colour: purple; Shape: elliptical; Number: 41.0; Total Wet Weight: 65.0 g; Cotyledon Dry Weight: 1.14 g; Cotyledon Length: 23.6 mm; Cotyledon Width: 12.7 mm; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower
Chalmers, W.S., 1970: Colour Dark Purple: Present; Number: 18.0; Note: expedition data; Reference

Reference

Chalmers, W.S. 1970
Data accumulated from Chalmers' Collection reports from expeditions to Ecuador between 1968-1973. Series of 7 unpublished Reports. Cocoa Research Unit, University of the West Indies. See other reference entries for details.
Notes

Oriente region of Ecuador, Peru and Brazil Datafile: CH70__DC ECU - Chalmers expedition, Field Data Germplasm: Details of accessions collected from the Oriente region of Ecuador, Peru and Brazil. Environment: Accessions were described as they were collected.

Disease Bean Fruit

BUTTERFAT

Frances Bekele & Gillian Bidaisee, 2022: Testa: 5.00 %; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

FRUIT

Frances Bekele & Gillian Bidaisee, 2022: Shape: oblong; Basal Constriction: moderate; Apex Form: attenuate; Rugosity: moderate; Length: 193.0 mm; Breadth: 82.0 mm; Colour: anthocyanin absent; Hardness: hard; Note: Hardness > 2.0 Mpa; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

PHENOTYPING

Fiona Lahive, 2017: Accession: RUQ 99; Light Saturated Photosynthetic Rate: 2.68 μmol m² s^-1; Stomatal Conductance: 0.06 mol m² s^-1; Transpiration Rate: 0.86 mmol m² s^-1; Intrinsic Water Use Efficiency: 48.44 μmol mol^-1; Instantaneous Water Use Efficiency: 3.17 mmol mol^-1; Flush Size: 4; Leaf Area: 221.40 cm²; Leaf Dry Weight: 1.52 g; Specific Leaf Area: 149.00 cm² g^-1; Reference

Reference

Fiona Lahive 2017
Phenotypic data from climate change trials. Personal communication.
Notes

Data for single trees in ICQC,R. Each value is a mean of 2 time points with 6 leaves per tree (12 measurements), except flush size, which was 2 branches per tree (4 measurements).

Phenotyping

FLUSH

Frances Bekele & Gillian Bidaisee, 2022: Colour: slight anthocyanin; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

LEAF

Trinidad - ICGT, 1992: Distance from Base to Widest Part: 161 mm; Length: 327.0 mm; Width: 116.0 mm; Length to Width Ratio: 3.20; Basal Angle: 114.7 °; Apical Angle: 60.3 °; Petiole Length: 25 mm; Pulvinus Length: 18 mm; Reference

Reference

Trinidad - ICGT 1992
Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.
Notes

Trinidad - International Cocoa Genebank, CRU, University of the West Indies.
Flower descriptor data is presented for 620 clones, fruit descriptor data of 333 and seed characters of 118 clones are partly described. Leaf descriptor data is presented for 229 clones. The germplasm is mainly of Peruvian, Ecuadorian and Colombian origin. Environment: Each clone is represented in the collection by up to 16 trees planted 1.8 m apart in a block design. Shading is provided by Erythrina sp. (spaced 60m apart) and bananas (spaced 4m apart). Fertilizer, N-P-K (15:10:5), is provided twice a year at 250g per tree. Cyclic irrigation is performed from February to May (10 l of water per plant/week). Soil type group -33 A 1 Soil Series - Cunupia fine sandy clay with restricted internal drainage Lithology - silty clay alluvium Drainage - imperfect Slope category - 0°-2° Meterological data are given in this table as mean maximum, mean minimum and overall mean temperature and mean total rainfall per month over the period 1961-1990. Month Temp. (°C) Rainfall Max Min Mean (mm) January 30.1 20.8 24.6 71.2 February 30.2 20.8 25.0 43.3 March 31.2 21.4 25.7 36.6 April 31.8 22.3 26.5 51.1 May 31.6 23.3 26.9 116.5 June 30.6 23.3 26.4 252.1 July 30.8 23.0 26.2 266.3 August 31.2 22.9 26.4 250.1 September 31.5 22.8 26.5 202.5 October 31.4 22.82 6.41 99.3 November 30.8 22.4 25.9 227.8 December 30.2 21.5 25.2 155.6 Descriptors: The character selection is based on the IBPGR list (IBPGR, 1981 [IBP81A]). Where descriptor states present real measurements, e.g. pod length in cm, the data are given as the mean of all the measurements ± the standard deviation. For some descriptors, such as Leaf, flush colour, the phenotypic expression of the character is coded on a scale from 0 to 9. On this scale '0' represents the lowest or weakest expression of a characteristic and '9' represents the highest or strongest. Leaf and Flower Characteristics p.300-307

Leaf

FLOWER

Frances Bekele & Gillian Bidaisee, 2022: Ligule Colour: slight anthocyanin; Stamen Colour: slight anthocyanin; Sepal Length: 7.11 mm; Ligule Width: 2.47 mm; Ovule Number: 42; Style Length: 2.32 mm; Pedicel Colour: reddish; Reference

Reference

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.
Notes

This single reference supercedes data entered previously and will be kept up-to-date to allow this information to be grouped together.

Yield Bean Butterfat Fruit Flush Flower

REFERENCES

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.

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.

Mars Center for Cocoa Science (2012) Accession list for the Mars Center for Cocoa Science. Jean-Philippe Marelli, 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.

Haeser, E. (2008) Accession list for Bah Lias Research Station, PT.PP. London Sumatra, Indonesia. Personal communication, March 2010.

Malaysia - ARC Tuaran (1998) Accessions held in the Malaysian Cocoa Board collection, May 1998. K. Lamin, MCB, Malaysia, Personal Communication.

CRU (2011) ICG,T accessions. CRU website.

Kebe (1999) Data from Cote d'Ivoire on black pod resistance. Kebe, report on CAOBISCO project. Forwarded to ICGD by Dr. A.B.Eskes, IPGRI.

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.

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.

Chalmers, W.S. (1970) Data accumulated from Chalmers' Collection reports from expeditions to Ecuador between 1968-1973. Series of 7 unpublished Reports. Cocoa Research Unit, University of the West Indies. See other reference entries for details.

Fiona Lahive (2017) Phenotypic data from climate change trials. Personal communication.

Trinidad - ICGT (1992) Leaf descriptors. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.