Agricultural origins: center and noncenters: agriculture may originale in discrete centers or evolve over vast areas without definable centers 

 -  Science, 174, p.468-474, 1971 .
<br/><br/> For nearly half a century the charisma of N.I Vavilov and the elegant simplicity of his methodology heve dominated theories and concepts about the origin of cultivated plants. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AGRICULTURA<br/>PLANTAS - CULTIVO