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MO 109    Theobroma cacao

 Pound, F.J. (1938)
Cacao and Witchbroom Disease of South America with notes on other species of Theobroma. Archives of Cocoa Research 1: pp. 26-71.

Derivation: river MOrona.
Collected by Pound.
Location: R. Morona, Peru.

Pound, 1938a [POU38A]. Fruit - Short, oval, warty, some types with red tint.

Notes:  Collected in 1937.

Pound, 1938a [POU38A]. Pods may have been collected from one tree with no Witches Broom infection.

Bartley, 1993a [BAR93A]. It is likely that accessions recorded with high numbers (>100?) are probably MOQ accessions since Pound, 1943b [POU43B] states that 80 plants were planted at Marper farm.

Synonyms: MORONA 109


 Cornejo, O.E. et al., 2018
BioProject: PRJNA486011   NCBI   ENA FASTQ 
Project: PRJEB28591   EVA (project)   EVA (analysis) 
Library Source: Genomic
Run: SRR7774272   NCBI   ENA FASTQ 
Experiment: SRX4629552
BioSample: SAMN09934494
SampleName: MO_109
SampleSource: Trinidad, Tree_ID: Tc18213

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Current List   ICQC,R Website
• Accession: RUQ 1537     ICQC,R 
   - Local Name: MO 109
   - Year of Accession: 2005
List received in 2018   Reference
• Accession: 22231
   - Local Name: MO-109
   - Year of Accession: 2010
List received in 2012   Reference
• Local Name: MO109
List received in 2011   Reference
• Local Name: MO 109

Resistant (Field Reaction).
 Butler, D.R. et al., 1998

Pod Index: 32.3 (pods per kg dried beans)

Colour: purple
Shape: elliptical
Number: 36.0
Total Wet Weight: 52.4 g
Cotyledon Dry Weight: 0.86 g
Cotyledon Length: 22.8 mm
Cotyledon Width: 13.1 mm

Testa: 6.90 %

Shape: obovate
Basal Constriction: slight
Apex Form: mammillate
Rugosity: moderate
Length: 142.0 mm
Breadth: 78.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa

Accession: RUQ 1537
Light Saturated Photosynthetic Rate: 4.26 μmol m2 s-1
Stomatal Conductance: 0.07 mol m2 s-1
Transpiration Rate: 0.95 mmol m2 s-1
Intrinsic Water Use Efficiency: 65.80 μmol mol-1
Instantaneous Water Use Efficiency: 4.43 mmol mol-1
Flush Size: 6
Leaf Area: 335.70 cm2
Leaf Dry Weight: 2.36 g
Specific Leaf Area: 142.30 cm2 g-1

Colour: anthocyanin absent

Distance from Base to Widest Part: 134 mm
Length: 259.0 mm
Width: 95.0 mm
Length to Width Ratio: 2.70
Basal Angle: 142.3 °
Apical Angle: 72.2 °
Petiole Length: 19 mm
Pulvinus Length: 13 mm

Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 8.75 mm
Ligule Width: 3.83 mm
Ovule Number: 35
Style Length: 2.26 mm
Pedicel Colour: reddish

Pound, F.J. (1938) Cacao and Witchbroom Disease of South America with notes on other species of Theobroma. Archives of Cocoa Research 1: pp. 26-71.
Cornejo, O.E., Muh-Ching Yee, Victor Dominguez, Mary Andrews, Alexandra Sockell, Erika Strandberg, Donald Livingstone III, Conrad Stack, Alberto Romero, Pathmanathan Umaharan, Stefan Royaert, Nilesh R. Tawari, Pauline Ng, Osman Gutierrez, Wilbert Phillips, Keithanne Mockaitis, Carlos D. Bustamante & Juan C. Motamayor (2018) Population genomic analyses of the chocolate tree, Theobroma cacao L., provide insights into its domestication process. Commun Biol 1, 167
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.
CRU (2011) ICG,T accessions. CRU website.
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.
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.