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AMAZ 9    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 Unpublished Report.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 9 [CHA], AMAZONAS 9, AMAZON 9

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

'Iquitos' Population
 Reference

 HELD IN

 Ecuador, Estation Experimental Tropical Pichilingue
List received in 2012   Reference
• Local Name: AMA - 9

Absent (Expedition data).
 Chalmers, W.S., 1970
Moderate Resistance
 Queroz, J., 1999

Number: 28.0
Wet Weight: 1.50 g
 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.
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
EET - Pichilingue (2012) Accessions planted in EET - Pichilingue, Ecuador. Freddy Amores and Ignacio Sotomayor C, personal communication, February 2012.
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.
Queroz, J. (1999) Caracteristicas fenotipicas de materiales de la coleccion Chalmers. Unpublished report by James Queroz, INIAP, Ecuador passed on to the ICGD by Dr. A.Eskes, IPGRI.