Biology of weeds in the Solanum nigrum complex (Solanum section Solanum) in North America

Rogers, B.S.; Ogg, A.G.J.

Science and Education Administration, Agricultural Reviews and Manuals, Western Series (ARM-W-23): 30

1981


Accession: 000829980

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Abstract
Black nightshade and related species (S. americanum, S. nodiflorum, S. ptycanthum, S. sarrachoides) of the Solanum nigrum complex have become economically important weeds in N. America, particularly in the irrigated lands of the West. Numerous aspects of the biology of these species are poorly understood. Their importance as competitive and poisonous weeds, disease vectors and food sources is summarized. Taxonomic problems are fully reviewed and discussed. The breeding system and population genetics are described. Prominent and unique morphological features are described and illustrated. Aspects of plant-environment relationships and germination are reviewed. A method of field identification is presented. Implications for control research are discussed. From summary.