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The Effect of Ultraviolet Radiation on the Fresh Weight of Some Weeds and Crops

Published online by Cambridge University Press:  12 June 2017

Christian Andreasen
Affiliation:
The Royal Veterinary and Agricultural University, Department of Agricultural Sciences, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Copenhagen, Denmark
Leif Hansen
Affiliation:
The Royal Veterinary and Agricultural University, Department of Agricultural Sciences, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Copenhagen, Denmark
Jens C. Streibig
Affiliation:
The Royal Veterinary and Agricultural University, Department of Agricultural Sciences, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Copenhagen, Denmark

Abstract

Under greenhouse conditions, annual bluegrass (Poa annua L.), common groundsel (Senecio vulgaris L.), shepherd's purse [Capsella bursa-pastoris (L.) Medicus], small nettle (Urtica urens L.), canola (Brassica napus L. ssp. napus), and pea (Pisum sativa L.) differed in sensitivity to ultraviolet (UV) radiation. Of the weed species, annual bluegrass was the least sensitive; whereas, among the crop species, canola was about sevenfold more sensitive than was pea. The sensitivity of a species to UV radiation was highly dependent upon its stage of development. The study indicates some potential for using UV radiation to control weeds, but the method needs further investigation to unravel the selectivity of the methods and potential health hazards.

Type
Research
Copyright
Copyright © 1999 by the Weed Science Society of America 

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