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Interaction of Kochia (Kochia scoparia) and Rhizopus sp. on Sugarbeet (Beta vulgaris) Germination

Published online by Cambridge University Press:  12 June 2017

Ronald B. Wiley ,
Edward E. Schweizer  and
Earl G. Ruppel
Ronald B. Wiley
Affiliation:
Dep. Bot. and Plant Pathol., Colorado State Univ., Fort Collins, CO 80523
Edward E. Schweizer
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Crops Res. Lab., Colorado State Univ., Fort Collins, CO 80523
Earl G. Ruppel
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Crops Res. Lab., Colorado State Univ., Fort Collins, CO 80523
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Abstract

Emergence of sugarbeets (Beta vulgaris L. ‘MonoHy D2’) from soil was reduced by germinating kochia [Kochia scoparia (L.) Schrad. ♯ KCHSC] seed at densities greater than 1 seed/cm2 when the fungus Rhizopus sp. was present. Water-soluble exudates from germinated kochia seed did not influence Rhizopus growth in vitro or sugarbeet germination. Cell-free culture extracts of Rhizopus reduced sugarbeet germination and radicle elongation. There appeared to be an interaction between kochia and Rhizopus, but the responsible compounds were not identified.

Keywords

Allelopathyallelopathic interactionfungal toxinKCHSC
Type
Special Topics
Information
Weed Science , Volume 33 , Issue 2 , March 1985 , pp. 275 - 279
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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