Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-24T19:40:56.407Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth Characteristics of Wild Oat (Avena fatua) in the Pacific Northwest

Published online by Cambridge University Press:  12 June 2017

Larry A. Morrow  and
David R. Gealy
Larry A. Morrow
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Pullman, WA 99164
David R. Gealy
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Pullman, WA 99164
Get access Rights & Permissions [Opens in a new window]

Abstract

Wild oat (Avena fatua L.) seedlings from mature seeds emerged in silt loam from depths up to 17.5 cm in the greenhouse or 15 cm under field conditions. No emergence occurred from greater depths. Under field conditions, the greatest percentage of shoots emerged from seeds planted 5 cm deep. Wild oat in a space-planted nursery produced an average of 19 tillers, reached a maximum height of 79 cm, and produced an average of 1072 seeds. The number of tillers per plant, the number of seeds per panicle, and the total number of seeds per plant increased with an increase in annual precipitation. Wild oat seeds harvested as early as 3 days after anther extrusion germinated, but seeds harvested 6 or 7 days after anther extrusion germinated more rapidly.

Keywords

Seed germinationannual grass weedsdepth of emergenceundeveloped seedplant growth
Type
Research Article
Information
Weed Science , Volume 31 , Issue 2 , March 1983 , pp. 226 - 229
Copyright
Copyright © 1983 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. Andrews, C. J. and Simpson, G. M. 1969. Dormancy studies in seed of Avena fatua L. 6. Germinability of the immature caryopsis. Can. J. Bot. 97:1841–1849.CrossRefGoogle Scholar
2. Banting, J. D. 1974. Growth habit and control of wild oats. Agric. Canada Pub. No. 1531. 44.Google Scholar
3. Chancellor, R. J. and Peters, N.C.B. 1974. The time of onset of competition between wild oats (Avena fatua L.) and spring cereals. Weed Res. 14:197–202.Google Scholar
4. Dubetz, S., Russell, G. C., and Anderson, D. T. 1962. Effect of soil temperature on seedling emergence. Can. J. Plant Sci. 42:481–487.Google Scholar
5. Imam, A. G. and Allard, R. W. 1965. Population studies in predominately self-pollinated species. VI. Genetic variability between and within natural populations of wild oats in differing habitats in California. Genetics 51:49–62.CrossRefGoogle Scholar
6. Lee, G. A., Coleman-Harrell, M. E., and Belles, W. S. 1979. Influence of densities and exposure durations of wild oat (Avena fatua L.) populations on the yields of spring wheat (Triticum aestivum L.). Abstr., Weed Sci. Soc. Am. pp. 36–37.Google Scholar
7. Leggett, G. E., Ramig, R. E., Johnson, L. C., and Massee, T. W. 1974. Summer fallow in the Northwest. Pages 110–135 in Summer Fallow in the Western United States. U.S. Dep. Agric., Agric. Res. Serv. Conservation Res. Rep. no. 17.Google Scholar
8. McNamara, D. W. 1975. Wild oat density and the duration of competition as it influences wheat growth and yield. Aust. J. Exp. Agric. Anim. Husb. 16:402–406.Google Scholar
9. Morgan, S. F. and Berrie, A.M.M. 1970. Development of dormancy during seed maturation in Avena ludoviciana winter wild oat. Nature (London) 228:225.Google Scholar
10. Naffziger, L. M. and Horner, G. M. 1958. Effect of cropping and tillage practices on runoff and erosion in the Palouse area of Washington and Idaho. Trans. Am. Soc. Agric. Eng. 1:34–35.Google Scholar
11. Pavlychenko, T. K. and Harrington, J. B. 1935. Root development of weeds and crops in competition under dry farming. Sci. Agric. 16:151–160.Google Scholar
12. Sharma, M. P., McBeath, D. K., and Vanden Born, W. H. 1977. Studies on the biology of wild oats. II. Growth. Can. J. Plant Sci. 57:811–817.Google Scholar
13. Thurston, J. M. 1959. A comparative study of the growth of wild oats (Avena fatua L. and A. ludoviciana Dur.) and of cultivated cereals with varied nitrogen supply. Ann. Appl. Biol. 47:716–739.Google Scholar
14. Wilson, B. J. 1979. The cost of wild oats (Avena spp.) in Australian wheat production. Proc. 7th Asian-Pacific Weed Sci. Soc. Conf., pp. 441–444.Google Scholar