Evaluation location: Puerto Rico, United States
An ex situ collection of twenty-six mamey sapote (Pouteria sapota (Jacq.) H. E. Moore & Stearn) accessions at the USDA-ARS TARS research farm, in Isabela, Puerto Rico was evaluated for horticultural and agronomic traits. Six-year-old, clonally propagated trees (rootstock 'Pantin') that were regularly irrigated, fertilized and pruned were used for the evaluation. Orchard was planted in a randomized complete block design with two trees in each of four blocks in a diamond pattern with 6.1 m between rows and 4.9 m between trees in a row. Fruit count and weights were collected during monthly harvests for a period of 3 years (May, 2007 through May, 2010). A subset of randomly selected fruit for each accession, at every other harvest was further evaluated in laboratories for fruit dimensions, number and seed dimensions, total pulp and degrees Brix.