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TARS 9    Theobroma cacao

 Ricardo Goenaga, Heber Irizarry & Brian Irish (2009)
TARS Series of Cacao Germplasm Selections. HORTSCIENCE 44(3): 826-827

Derivation: USDA-ARS, Tropical Agriculture Research Station.
Location: United States.

Notes:  The TARS selections were made following multisite progeny trials at Corozal, Gurabo and Yabucoa in Puerto Rico and a further trial at Corozal to investigate the performance of the most promising 40 types when grafted onto an open-pollinated EET400 rootstock (randomised block design with six replications, each containing two experimental trees per treatment, evaluated over 4 years of production 1994-97 when the trees were 3 to 6 years old) (Irizarry and Rivera, 1998 and Irizarry and Goenaga, 2000)). The original progeny trials involved evaluation of the yield potential of 1320 trees representing five interclonal cacao full sib families (UF-668 x Pound-7, IMC-67 x UF-613, EET-400 x SCA-12, SCA-6 xEET62, and IMC-67 x SCA-12) over a period of 8 years (1986 to 1993) of production at two locations and 4 years (1986 to 1989) at a third location (edaphic/climate details below. Only 9 of the 40 clones selected for final evaluation demonstrated superior yield when compared with either the combined mean of the five parental clones or the mean of their highest yielding parent. Organoleptic evaluation of 65% cacao-containing chocolate samples from the highest yielding clones was conducted at Guittard Chocolate Company, Burlingame, CA, using the protocol of the CFC/ICCO/INIAP Flavor Project (Sukha et al., 2008).
 

 PEDIGREE DETAILS

 Parents:
EET 400 [ECU]  x SCA 12    Ricardo Goenaga et al., 2009

 HELD IN

List received in 2018   Reference
• Accession: 22377
   - Local Name: TARS-9
   - Year of Accession: 2016
List received in 2024   Reference
• Accession: PI 668452     GRIN-Global 
   - Local Name: CACAO TARS 9
   - Year of Accession: 2000

 FLAVOUR

 Ricardo Goenaga et al., 2009
Flavour: Gorgeous color; very smooth in flavor profile; very mild chocolate notes up front with low overall bitterness and a distinct nut character that persists; aftertaste has a residual nut/nut skins note; really good chocolate
Note: Flavor profile of 65% chocolate
 Reference

 YIELD

 Brian Irish, 2011
Acc: PI 668452
Pod Index: 26.8 (pods per kg dried beans)
Yield (dry beans per tree): 1.17 kg
 Reference
 Ricardo Goenaga et al., 2009
Pod Index: 28.7 (pods per kg dried beans)
Yield: 2070 kg ha-1 yr-1
Yield (dry beans per tree): 1.38 kg
 Reference

 BEAN

 Brian Irish, 2011
Acc: PI 668452
Number: 31.9
Total Wet Weight: 189.3 g
Total Dry Weight: 37.4 g
 Reference

 FRUIT

 Brian Irish, 2011
Acc: PI 668452
Length: 130.0 mm
Breadth: 78.0 mm
Weight: 282.3 g
Pods Per Tree: 31
 Reference

Ricardo Goenaga, Heber Irizarry & Brian Irish (2009) TARS Series of Cacao Germplasm Selections. HORTSCIENCE 44(3): 826-827
Allan Mata (2018) Accession list for the International Cacao Collection at CATIE (IC3). Personal communication.
USDA, ARS Tropical Agriculture Research Station, Mayaguez, Puerto Rico. (2024) List of cocoa accessions held at Mayaguez in September 2024. USDA-ARS GRIN-Global. [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland.
Brian Irish (2011) CACAO.MAYAGUEZ.2007-2011. USDA-ARS GRIN-Global. [Online Database] National Germplasm Resources Laboratory, Beltsville, Maryland.