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SLC 18    Theobroma cacao

 Pound, F.J. (1943)
First report on the selection of cacao trees for resistance to Witches' Broom disease.. Unpublished report, Ministry of Agriculture, Trinidad.

Derivation: Santa Lucia C.
Collected by Pound.
Location: Hda. Santa Lucia, ECU.

Notes:  Pound, 1943b [POU43B] Progeny from selected trees which had shown resistance to Witches' Broom disease.

Bartley, 1998a [BAR98A] Pound used letters and numbers as identifiers. SLA, SLB and SLC could all be the same series of material.
 

 NOTES

Pound, 1943b [POU43B] Progeny from selected trees which had shown resistance to Witches' Broom disease. Bartley, 1998a [BAR98A] Pound used letters and numbers as identifiers. SLA, SLB and SLC could all be the same series of material.

 PEDIGREE DETAILS

 Father to:
GEBP 303 /B-M [ADI]    Frances Bekele, 2019

 HELD IN

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Current List   ICQC,R Website
• Accession: RUQ 1134     ICQC,R 
   - Local Name: SLC 18
   - Year of Accession: 2001
List received in 2018   Reference
• Accession: 22088
   - Local Name: SLC-18
   - Year of Accession: 2007
List received in 2011   Reference
• Local Name: SLC 18

 DISEASE

 Phytophthora
Resistant, sp. P. palmivora (Pod).
Note: Unripe, Unattached and 3mm stab inoculated
 Iwaro, A.D. et al., 1998
Resistant, sp. P. capsici (Pod).
Note: Unripe, Unattached and 3mm stab inoculated
 Iwaro, A.D. et al., 1998

 YIELD

 Frances Bekele & Gillian Bidaisee, 2022
Pod Index: 20.8 (pods per kg dried beans)
 Reference

 BEAN

 Frances Bekele & Gillian Bidaisee, 2022
Colour: purple
Shape: elliptical
Number: 39.0
Total Wet Weight: 72.2 g
Cotyledon Dry Weight: 1.23 g
Cotyledon Length: 21.4 mm
Cotyledon Width: 13.1 mm
 Reference

 BUTTERFAT

 Frances Bekele & Gillian Bidaisee, 2022
Testa: 4.30 %
 Reference
 Trinidad - CRU, 1998
Butterfat Content: 48.40 %
Testa: 6.10 %
 Reference

 FRUIT

 Frances Bekele & Gillian Bidaisee, 2022
Shape: obovate
Basal Constriction: slight
Apex Form: obtuse
Rugosity: moderate
Length: 152.0 mm
Breadth: 78.0 mm
Colour: anthocyanin absent
Hardness: hard
Note: Hardness > 2.0 Mpa
 Reference

 PHENOTYPING

 Fiona Lahive, 2017
Accession: RUQ 1134
Light Saturated Photosynthetic Rate: 4.25 μmol m2 s-1
Stomatal Conductance: 0.06 mol m2 s-1
Transpiration Rate: 0.85 mmol m2 s-1
Intrinsic Water Use Efficiency: 72.99 μmol mol-1
Instantaneous Water Use Efficiency: 4.80 mmol mol-1
Flush Size: 4
Leaf Area: 248.00 cm2
Leaf Dry Weight: 1.69 g
Specific Leaf Area: 148.20 cm2 g-1
 Reference

 FLUSH

 Frances Bekele & Gillian Bidaisee, 2022
Colour: moderate anthocyanin
 Reference

 FLOWER

 Frances Bekele & Gillian Bidaisee, 2022
Ligule Colour: slight anthocyanin
Stamen Colour: slight anthocyanin
Sepal Length: 8.13 mm
Ligule Width: 2.21 mm
Ovule Number: 42
Style Length: 2.10 mm
Pedicel Colour: reddish
 Reference

Pound, F.J. (1943) First report on the selection of cacao trees for resistance to Witches' Broom disease.. Unpublished report, Ministry of Agriculture, Trinidad.
Frances Bekele (2019) Pedigree data for the GEBP clones supplied to ICQC,R (UK) by the Cocoa Research Centre (CRC), Trinidad & Tobago.. Data supplied as an Excel spreadsheet by Frances Bekele, April 2019.
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3).. Personal communication.
CRU (2011) ICG,T accessions.. CRU website.
Iwaro, A.D., Sreenivasan, T.N. & Umaharan, P. (1998) Cacao resistance to Phytophthora: Effect of pathogen species, inoculation depths and pod maturity.. European Journal of Plant Pathology, 104: pp.11-15
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.
Trinidad - CRU (1998) Fat Analysis Data.. Data supplied on computer diskette by F. Bekele, CRU, Trinidad.
Fiona Lahive (2017) Phenotypic data from climate change trials.. Personal communication.