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robert d riggs
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Variability and population dynamics of root-knot and cyst nematodes in the Southern Region of the United States
D. P. Schmitt, Robert D. Riggs, Texas Agricultural Experiment Station · Texas Agricultural Experiment Station, Texas A&M University System
21 sayfa · 1989
Root-knot nematodes / Soybean cyst nematode / Globodera / Plant nematodes / Population biology
[Pamphlets on the American Revolution.]
Jane Carson, Elizabeth Cometti, Charles B. Cross, Robert Detweiler, Alonzo T. Dill, Emory G. Evans, G. Melvin Herdon, Donald Dean Jackson, John Carter Matthews, Merrill D. Peterson, Hugh F. Rankin, A. R. Riggs, Robert A. Rutland, John E. Selby, Selby, John R. Sellers, Howard W. Smith, Virginia Independence Bicentennial Commission · Virginia Independence Bicentennial Commission
21 sayfa · 1976
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