After a scientific baccalaureate and a Master at ESSA (Higher School of Agricultural Sciences attached to the University of Antananarivo), Joyce began in 2015 a thesis on the irregularity of flowering clove at the University of Antananarivo in Madagascar (Graduate School of Life Sciences and Environment) in collaboration with the Horticultural Technical Center of Tamatave (CTHT) where her work is followed by Michel Jahiel.

The objectives of her thesis are to characterize the bloom irregularity of the clove and to determine the environmental (climate, soil), cultural (tree size) and endogenous (architectural) factors involved in the flowering. The knowledge gained from this work will allow to develop practices to regulate clove flowering and yield. 

Since 2015, Joyce has been conducting experiments at two sites in the clove growing area on the East coast of Madagascar, Tamatave and Fénérive-Est, at different scales ranging from the plot to the organ. Each year, she conducts a four-month mission to Reunion to do bibliography, to analyze her data, interpret her results and write scientific articles or papers at conferences under the supervision of Frédéric Normand (CIRAD, UPR HortSys). 

Her research is part of the Action "Innovation and Applied Research for Knowledge, Conservation and Valorization of Agricultural and Food Products in the Indian Ocean" of Interreg-V Qualinnov project. The latter financed a campaign to collect soil samples from her experimental plots and physicochemical analyzes of these samples by a laboratory in Madagascar, which allowed Joyce to characterize the soils of her plots and to search for links between the soil characteristics and the flowering capacity of the clove trees growing there.