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Distribution and Biology of Two Nightshades (Solanum spp.) in Minnesota

Published online by Cambridge University Press:  12 June 2017

Laura S. Quakenbush  and
Robert N. Andersen
Laura S. Quakenbush
Affiliation:
Dep. Agron. and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108
Robert N. Andersen
Affiliation:
Dep. Agron. and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55108
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Abstract

Two species of annual nightshades were commonly found as agronomic weeds in Minnesota. Eastern black nightshade (Solanum ptycanthum Dun.), the most common species, was found throughout the southern half of the state. Hairy nightshade (Solanum sarrachoides Sendt. ♯3 SOLSA) was found only in a few scattered locations. Eastern black nightshade seedling emergence began in mid-April or early May, and more than 80% of the total yearly emergence occurred before June. Hairy nightshade emergence began in May, but less than 70% of its total yearly emergence occurred before June. Eastern black nightshade berries first contained viable seeds 4 to 5 weeks after flowering of the plants and a week or more before the berries began to turn black. Hairy nightshade generally required a week longer than eastern black nightshade for viable seed production after flowering.

Keywords

Solanum ptycanthumSolanum sarrachoidesseedling emergenceviable seed productionSOLSA
Type
Weed Biology and Ecology
Information
Weed Science , Volume 32 , Issue 4 , July 1984 , pp. 529 - 533
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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