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Influence of Rye (Secale cereale) Plant Residues on Germination and Growth of Three Triazine-Resistant and Susceptible Weeds

Published online by Cambridge University Press:  12 June 2017

T. Przepiorkowski  and
Stanley F. Gorski
T. Przepiorkowski
Affiliation:
Warsaw Agric. Univ., Warsaw, Poland
Stanley F. Gorski
Affiliation:
Dep. Hortic., The Ohio State Univ., Columbus, OH 43210
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Abstract

Greenhouse and laboratory studies were conducted to evaluate the effects of rye residues on germination and growth of three triazine-resistant weed species, barnyardgrass, willowherb, and horseweed. Soil containing rye roots was used to determine rye residue influence on seed germination. Willowherb and horseweed germination was inhibited up to 50% with the highest rate of rye, but there was no inhibition of barnyardgrass germination. Aqueous extracts of rye shoot tissue inhibited incubator germination of horseweed and willowherb, but did not significantly influence barnyardgrass germination. Although there were no germination differences between the susceptible and resistant biotypes, both were totally inhibited when a 5% w/v solution was used. Growth inhibition of the selected weeds was evaluated using rye root residues in soil. All combinations of biotypes, species, and rye seeding rates showed significant growth inhibition.

Keywords

Barnyardgrass, Echinochloa crus-galli (L.) Beauv. ♯ ECHCGhorseweed, Conyza canadensis (L.) Cronq, ♯ ERICAwillowherb, Epilobium ciliatum Rafin (syn.: E. adenocaulon Hausskn.), ♯ EPICIrye, Secale cereale L. ‘Wheeler.’Allelopathytriazine-resistant weedssimazineConyza canadensisEchinochloa crus-galliEpilobium ciliatumECHCGEPICIERICA
Type
Research
Information
Weed Technology , Volume 8 , Issue 4 , December 1994 , pp. 744 - 747
Copyright
Copyright © 1994 Weed Science Society of America 

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References

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