Geographical Review · 1991 · 74 citations · 15 references
AgricultureAgronomyCrop SciencesCrop ProductionCropping SystemsRural DevelopmentAgricultural Labor PolicyCrop DiversityCropping System DiversityCropping System EcologyLabor Use In AgricultureRural Labor Force DynamicsAgricultural LabourCrop-specific Labor DemandFarm Labor ShortagesLabor Requirement EstimationLabor Requirement ReductionLabor Turnover In AgricultureRural Labor Scarcity
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The potato: evolution, biodiversity and genetic resources
Choice Reviews Online · 1990 · 883 citations
From Teosinte to Maize: The Catastrophic Sexual Transmutation
Hugh H. Iltis · Science · 1983 · 271 citations
Molecular Evidence and the Evolution of Maize
John Doebley · Economic Botany · 1990 · 264 citations