1. Centro de Investigação de Montanha (CIMO) Instituto Politécnico de Bragança, Campus de Santa Apolónia Bragança Portugal
2. Experimental Base of Industrial Crops (CIAT/STP‐BECI) Center of Technological and Agricultural Investigation of São Tomé and Principe Sao Tome Sao Tome and Principe
3. University of São Tomé and Príncipe Sao Tome Sao Tome and Principe