Exploitation of physiological and genetic variability to enhance crop productivity - Harper, James E., ed. (Rockville American Society of Plant Physiologist, 1985)
Keywords: Howell, Robert W., joint ed; Schrader Lawrence, E., jt. ed; Edited by James E.Harper (and others); Grain-Physiology-Congresses,Grain-Genetic-congreses,Grain Breeding Congresses,Crop Yields-Congresses,Legumes-Physiology-Congresses.