Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-26T13:22:09.211Z Has data issue: false hasContentIssue false
  • English
  • Français

Performance of Imazethapyr on Pulse Crops

Published online by Cambridge University Press:  12 June 2017

Najib Malik  and
Lawrence Townley-Smith
Najib Malik
Affiliation:
Agric. Canada Res. Stn., Melfort, Sask. SOE 1AO
Lawrence Townley-Smith
Affiliation:
Agric. Canada Res. Stn., Melfort, Sask. SOE 1AO
Get access Rights & Permissions [Opens in a new window]

Abstract

The potential of imazethapyr as a selective herbicide in four pulse crops was investigated at Melfort, Saskatchewan in 1988 and 1989. Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha-1. Postemergence treatments above 0.05 kg ha-1, however, stunted lentil and vetch in both years. Environmental factors, the dominant weed in the experimental site, as well as timing of application strongly influenced the performance of imazethapyr. Seed yield increases observed with imazethapyr treatments, compared to metribuzin or untreated check, were greater in 1989 when wild oat was the dominant weed and moisture was not a limiting factor in the early stages of crop development, than in 1988 when field pennycress was the dominant weed. Mean seed yield for all imazethapyr treatments, compared to the check, increased 0 and 930%, 24 and 89%, 21 and 600%, and 47 and 44% in 1988 and 1989, for lentil, field pea, faba bean and vetch, respectively. Significant increases in lentil seed density, seed size, and germination were also obtained though protein content decreased 2%.

Keywords

Imazethapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidmetribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)1,2,4-triazin-5(4H)-oneannual vetch, Vicia sativa L.faba bean, Vicia faba L. ‘Orion’field pea, Pisum sativum L. ‘Century’lentil, Lens culinaris L. ‘Eston’field pennycress, Thlaspi arvense L. ♯3 THLARwild oat, Avena fatua L. ♯ AVEFACrop toleranceherbicideseed qualityseed yieldweed controllentilfield peafaba beanannual vetch
Type
Research
Information
Weed Technology , Volume 4 , Issue 4 , December 1990 , pp. 791 - 798
Copyright
Copyright © 1990 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. American Cyanamid Company. 1985. AC 263 499 experimental herbicide. Tech. Inf. Rep., Agric. Res. Div., Princeton, NJ. 16 p.Google Scholar
2. Clare, N. T., and Stevenson, A. E. 1964. Measurement of feed intake by grazing cattle and sheep. X. Determination of nitrogen in feces and feeds using an autoanalyzer. N.Z. J. Agric. Res. 7:198–204.Google Scholar
3. Evans, L. E., and Rogalsky, J. R. 1976. Growing and using faba beans. Agric. Canada Publ. 1540. 21 p.Google Scholar
4. Friesen, G. H., and Wall, D. A. 1986. Tolerance of lentil (Lens culinaris Medik.) to herbicides. Can. J. Plant Sci. 66:131–139.Google Scholar
5. Malik, N., Cole, D., Darwent, L., and Moyer, J. 1988. Weed control in forage legumes with imazethapyr. Forage Notes 32:42–45.Google Scholar
6. Mir, P. S., Mir, Z., Townley-Smith, L., and Bittman, S. 1987. Ensiling potential of whole plant annual legumes and artichoke as indicated by total sugar content. Can. J. Anim. Sci. (Dec.) Abstr. Google Scholar
7. Saskatchewan Agriculture. 1987. Guide to farm practice in Saskatchewan. Publ. ISBN-0-88880-1807. p. 111–112.Google Scholar
8. Saskatchewan Agriculture. 1988. 1988 specialty crop report. Economics Branch Statistics. Publ. ISSN 0888 3737. 8 p.Google Scholar
9. Saskatchewan Agriculture. 1989. Chemical weed control in cereal, oilseed, pulse and forage crops. Soils and Crops Branch. Publ. ISSN 0833–112X. 112 p.Google Scholar
10. Shaner, D. L., Anderson, P. C., and Stidham, M. A. 1984. Imidazolinones-potent inhibitors of acetohydroxyacid synthase. Plant Physiol. 76:545–546.Google Scholar
11. Shaner, D. L. 1989. Factors affecting soil and foliar bioavailability of imidazolinones. Tech. Inf. Rep., Agric. Res. Div., American Cyanamid Co., Princeton, NJ. 24 p.Google Scholar
12. University of Saskatchewan. 1988. Lentil production in western Canada. Publication 413. 6 p.Google Scholar