Genotype-environment interactions shape leaf functional traits of cacao in agroforests

Marie Sauvadet, Adam Dickinson, Eduardo Somarriba, Wilbert Phillips-Mora, Rolando Cerda, Adam Martin & Marney Isaac
The outbreak of frosty (Moniliophthora roreri) and black pod (Phytophthora palmivora) in Central American cacao agroforests throughout the 1980s, led to the breeding of Theobroma cacao clones resistant to these diseases. However, while clonal disease resistance has been well documented, clonal adaptability to contrasting pedoclimates remains less understood. Plant functional responses to environmental constraints can be assessed by evaluating intraspecific trait variation (ITV), but trait-based approaches have rarely been implemented in genotype assessments. The objective...
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