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Spring Cereal Response to Imazamethabenz and Fenoxaprop-p-ethyl as Influenced by Environment

Published online by Cambridge University Press:  12 June 2017

Haisheng S. Xie ,
William A. Quick  and
Andrew I. Hsiao
Haisheng S. Xie
Affiliation:
Dep. Biol., Univ. Regina, Regina, SK, S4S OA2
William A. Quick
Affiliation:
Dep. Biol., Univ. Regina, Regina, SK, S4S OA2
Andrew I. Hsiao
Affiliation:
Agric. Canada, Res. Stn., Box 440, Regina, SK, S4P 3A2
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Abstract

The influence of temperature, soil moisture, and light intensity on the tolerance of spring wheat, durum wheat, and spring barley to imazamethabenz and safened fenoxaprop-p-ethyl was determined in growth chamber experiments. Imazamethabenz at 500 g/ha reduced plant height and shoot fresh weight of durum and spring wheats grown under prolonged 70% shade. The height of durum and spring wheats was reduced by imazamethabenz under a low temperature regime. Compared to the plants grown under standard conditions, the shoot weight of spring and durum wheat plants was not reduced by imazamethabenz under drought, or high and low temperature conditions. Barley tolerance to imazamethabenz was not affected by environment. All three spring cereals were tolerant to fenoxaprop-p-ethyl plus a safener at 92 g/ha; and such tolerance was not greatly affected by various environments examined.

Keywords

Fenoxaprop-p-ethyl, (R)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy]-propanoic acid, ethyl esterimazamethabenz, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-4(and 5)-methylbenzoic acid (3:2), methyl esterbarley, Hordeum vulgare L.durum wheat, Triticum durum L.spring wheat, Triticum aestivum L.Droughtherbicide tolerancelight intensitytemperatureHordeum vulgareTriticum aestivumTriticum durum.
Type
Research
Information
Weed Technology , Volume 8 , Issue 4 , December 1994 , pp. 713 - 716
Copyright
Copyright © 1994 Weed Science Society of America 

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