Search Results

IMC 10    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: Iquitos Mixed Calabacillo (Mid Channel).
Collected by Pound.
Location: Iquitos, PER.

Pound, 1938a [POU38A]. Main type - very large lagarta calabacillo pods, oval, very smooth, normal blanco. Seeds large, flat, losenge shaped. 'Hybrid group'-large pods, somewhat warty at stem end but smooth and round like calabacillo at the apex. Third group-small, oval, warty pods, dense flowering. Bartley, 1995a [BAR95A]. The common features of this group of clones are the high ovule numbers (65+) and a specific type of anthocyanin pigmentation in the stamens and base of the corolla. Posnette, 1945a [POS45A]. Petioles are of a type intermediate between those of Nanay (see NA) and Parinari (see PA) types; the constriction is usually short and narrow.

Notes:  Pound, 1938a [POU38A]. Pods probably collected from at least two groups of trees which were free of Witches' Broom.

Bartley, 1995a [BAR95A]. They are probably the progenies of two trees, later propagated as the clones P 18 [POU] and P 21 [POU].

Pound, 1943b [POU43B]. 112 plants were planted at Marper farm.

Bartley, 1997a, [BAR97A] The progeny of the individual clones is not documented and it is important not to consider the IMC clones as one homogeneous group.
 

Synonyms: G VI 55, IQUITOS MIXED 10, CCRP6

 NOTES

Pound, 1938a [POU38A]. Pods probably collected from at least two groups of trees which were free of Witches' Broom. Bartley, 1995a [BAR95A]. They are probably the progenies of two trees, later propagated as the clones P 18 [POU] and P 21 [POU]. Pound, 1943b [POU43B]. 112 plants were planted at Marper farm. Bartley, 1997a, [BAR97A] The progeny of the individual clones is not documented and it is important not to consider the IMC clones as one homogeneous group.

High yielding, self-incompatible   Sujith, S S & J S Minimol, 2016

 RECOMMENDED PLANTING MATERIAL    Disclaimer

 Sujith, S S & J S Minimol, 2016
Recommended for planting in:
India
Recommended by: Kerala Agricultural University, India
Year: pre-2011 (Current)
 Reference    View Associated Data

 PEDIGREE DETAILS

 Putative Half-Sibs:
Group P27   Zhang, D. et al., 2009
IMC 105 
IMC 107 
IMC 11 
IMC 12 
IMC 13 
IMC 16 
IMC 18 
IMC 23 
IMC 27 
IMC 30 
IMC 33 
IMC 38 
IMC 42 
IMC 44 
IMC 47 
IMC 53 
IMC 55 
IMC 58 
IMC 59 
IMC 6 
IMC 60 
IMC 61 
IMC 63 
IMC 65 
IMC 68 
IMC 71 
IMC 76 
IMC 77 
IMC 78 
IMC 85 
IMC 9 
IMC 96 
IMC 98 

 POPULATION

 Motamayor, J.C. et al., 2008
'Iquitos' Population
Subgroup: 'IMC I'   Reference

 HELD IN

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List received in 2012   Reference
• Local Name: IMC - 10
   - Year of Accession: 1967
List received in 2008   Reference
• Accession: VTLC 55
   - Local Name: IMC 10
List received in 1991   Reference
• Local Name: G VI 55
List received in 2008   Reference
• Accession: IDN-13-TCAC-00533
   - Local Name: IMC10
List received in 1990   Reference
• Local Name: IMC 10
List received in 2011   Reference
• Local Name: IMC 10
List received in 1971   Reference
• Local Name: IMC 10

 DISEASE

 Vascular Streak Dieback
Tolerant
 Sujith, S S & J S Minimol, 2016

 YIELD

 Frances Bekele & Gillian Bidaisee, 2016
Pod Index: 16.9 (pods per kg dried beans)
 Reference
 Trinidad - ICGT, 1998
Pod Index: 19.0 (pods per kg dried beans)
 Reference

 BEAN

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 Bartley, B.G.D., 1970
Size: medium
 Reference
 Frances Bekele & Gillian Bidaisee, 2016
Colour: purple
Shape: elliptical
Number: 58.0
Total Wet Weight: 82.2 g
Cotyledon Dry Weight: 1.02 g
Cotyledon Length: 25.0 mm
Cotyledon Width: 12.0 mm
 Reference
 Trinidad - ICGT, 1998
Colour: purple
Shape: elliptical
Number: 57.0
Total Wet Weight: 73.6 g
Total Dry Weight: 58.7 g
Cotyledon Dry Weight: 0.92 g
Cotyledon Length: 24.3 mm
Cotyledon Width: 12.0 mm
Cotyledon Thickness: 6.1 mm
 Reference

 BUTTERFAT

 Trinidad - CRU, 1998
Butterfat Content: 55.31 %
Testa: 5.13 %
 Reference

 FRUIT

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 Bartley, B.G.D., 1970
Size: large
 Reference
 Frances Bekele & Gillian Bidaisee, 2016
Shape: elliptical
Basal Constriction: slight
Apex Form: obtuse
Rugosity: slight
Length: 172.0 mm
Breadth: 93.0 mm
Colour: anthocyanin absent
Note: Pod wall hardness > 2.0 MPa
 Reference
 Trinidad - ICGT, 1998
Shape: angoleta
Basal Constriction: slight
Apex Form: obtuse
Rugosity: slight
Husk Thickness: 12.80 mm
Size: medium
Length: 159.4 mm
Breadth: 86.7 mm
Colour: anthocyanin absent
Husk Weight: 356.66 g
Placenta Weight: 12.89 g
Hardness: hard
Length Breadth Ratio: 1.83
 Reference

 FLUSH

 Trinidad - ICGT, 1992
Colour: slight anthocyanin
 Reference

 LEAF

 Trinidad - ICGT, 1992
Distance from Base to Widest Part: 140 mm
Length: 288.0 mm
Width: 109.0 mm
Length to Width Ratio: 2.70
Basal Angle: 127.0 °
Apical Angle: 63.7 °
Petiole Length: 17 mm
Pulvinus Length: 15 mm
 Reference

 FLOWER

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 Allen, J.B., 1988
Stamen Colour: slight anthocyanin
Sepal Colour: slight anthocyanin
Sepal Length: 7.50 mm
Ovary Colour: anthocyanin absent (apical)
Pedicel Colour: slight anthocyanin
 Reference
 Frances Bekele & Gillian Bidaisee, 2016
Ligule Colour: slight anthocyanin
Stamen Colour: anthocyanin absent
Sepal Length: 7.18 mm
Ligule Width: 2.54 mm
Ovule Number: 54
Style Length: 2.18 mm
Pedicel Colour: reddish
 Reference
 Trinidad - ICGT, 1998
Bud Colour: slight anthocyanin
Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Stamen Length: 6.51 mm
Guide Line Length: 3.62 mm
Sepal Colour: slight anthocyanin
Sepal Width: 2.61 mm
Sepal Length: 6.95 mm
Ligule Length: 2.85 mm
Ligule Width: 2.55 mm
Ribbon Length: 3.25 mm
Ribbon Colour: anthocyanin absent
Ovary Colour: anthocyanin absent (apical), anthocyanin absent (basal)
Ovary Width: 1.04 mm
Ovary Length: 1.25 mm
Ovule Number: 53
Style Colour: anthocyanin absent
Style Length: 2.09 mm
Pedicel Length: 13.88 mm
Pedicel Colour: very slight anthocyanin, intense anthocyanin (ab), anthocyanin absent (basal)
Pigmented Glands on Lower Surface of Sepal: present
 Reference

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.
Sujith, S S & J S Minimol (2016) Kerala Agricultural University (KAU) Released Cocoa Varieties. Advances in Life Sciences 5 (516): 2278–3849
Zhang, D., Boccara, M., Motilal, L., Mischke S., Johnson, E.S., Butler, D.R., Bailey, B. & Meinhardt, L. (2009) Molecular characterization of an earliest cacao (Theobroma cacao L.) collection from Upper Amazon using microsatellite DNA markers.. Tree Genetics & Genomes. doi:10.1007/s11295-009-0212-2
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.
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 (1991) Report of germplasm collection at Kerala Agricultural University.. R.V. Nair, Unpublished Report, Kerala Agricultural University, Kerala, India, pp. 3.
Susilo, A. (2008) The list of germplasm collected by ICCRI.. Personal communication from Agung Susilo, July 2008.
Malaysia - ARC Tuaran (1990) List of clones held in the Dept. of Agriculture's collection, at Sabah, Tuaran, Malaysia.. E.B. Tay, Malaysian Cocoa Board, Malaysia. Personal Communication.
CRU (2011) ICG,T accessions.. CRU website.
Leon, J. & Sgaravatti, E. (1971) Provisional list of genetic materials for plant introduction and exchange.. AGPE Misc 71/2. FAO, Rome. pp. 26.
Frances Bekele & Gillian Bidaisee (2016) Morphological data from the International Cocoa Collection (ICG,T) maintained by the Cocoa Research Centre (CRC), Trinidad & Tobago.. Unpublished data on fruit and flower morphology supplied as an Excel spreadsheet by Frances Bekele, April 2016.
Trinidad - ICGT (1998) Flower and fruit descriptions.. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies
Bartley, B.G.D. (1970) A preliminary catalogue of the cacao germplasm held at the University of the West Indies, Trinidad.. University of the West Indies, St. Augustine, Trinidad.
Trinidad - CRU (1998) Fat Analysis Data.. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
Trinidad - ICGT (1992) Flower, fruit and leaf descriptors.. Unpublished data supplied on computer diskette by International Cocoa Genebank, Trinidad, University of the West Indies, Trinidad.
Allen, J.B. (1988) Geographical variation and population biology in wild Theobroma cacao. . PhD. Thesis, University of Edinburgh, U.K. pp. 197.