Agroforestry Systems · 2000 · 137 citations · 13 references
Life SciencesBotanyEvolutionary BiologyEvolutionary EcologyEvolutionary TheoryPhylogeneticsDirectional SelectionNatural SelectionPlant SelectionSelection SystemsSelection TheoryTree Species SelectionHuman Plant SelectionIndividual Tree SelectionNon-native Species SelectionTree Selection
13
Soil Survey Horizons · 1962 · 1.7K citations
Agricultural Origins: Centers and Noncenters
Jack R. Harlan · Science · 1971 · 731 citations
Useful plants of Ghana: West African uses of wild and cultivated plants.
Daniel Abbiw · 1990 · 144 citations