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).