1. Combining abilities for yield and vegetative traits of Upper Amazon cocoa selections in Ghana;Adomako;Plantations, Recherche, Developpement,1999
2. Assessment of the yield of individual cacao trees in four field trials;Adomako,2005
3. Investigation into the use of the crinkle leaf mutant as a low vigour rootstock for high density planting in cocoa;Adu-Ampomah,2005
4. Enhancing harvest index in temperate fruit tree crops through the use of dwarfing rootstocks;Atkinson,2005
5. Various measures of tree vigor, yield, and efficiency of apple trees in the 1990 NC-140 systems trial as influenced by location, cultivar and orchard system;Barden;J. Am. Pomol. Soc.,2002