Skip to main content Accessibility help

Wild Oat (Avena fatua) and Spring Barley (Hordeum vulgare) Growth and Development in Monoculture and Mixed Culture

  • Don W. Morishita (a1) and Donald C. Thill (a1)


Barley (Hordeum vulgare L. ‘Advance’) and wild oat (Avena fatua L. # AVEFA) were grown in the field in monoculture and mixed culture (additively) to compare their seasonal growth and development. Barley and wild oat tiller and tiller head production were reduced by the interference (higher density) of the other species. Plant height of either species was not affected by interference of the other. Wild oat biomass was reduced more and at an earlier growth stage (two to three tillers) than was barley biomass (heading) in mixed culture. Barley and wild oat grown in monoculture had similar total plant nitrogen content throughput the growing season. Gas exchange and water potential of barley and wild oat in monoculture and mixed culture were similar. All measurements indicated that barley and wild oat grown in monoculture had growth and development patterns that were similar. In mixed culture, however, barley was more competitive with wild oat than wild oat was with barley. Wild oat reduced barley yield component quality and grain yield.



Hide All
1. Akey, W. C. and Morrison, I. N. 1984. Effects of soil moisture on the vegetative growth of wild oat (Avena fatua). Weed Sci. 32:625630.
2. Bremner, J. M. 1965. Total nitrogen. Pages 11491178 in Black, C. A., ed. Methods of soil analysis. Part 2. Agron. No. 9. Am., Soc. Agron., Madison, WI.
3. Carlson, H. L. and Hill, J. E. 1986. Wild oat (Avena fatua) competition with spring wheat: Effects of nitrogen fertilization. Weed Sci. 34:2933.
4. Chancellor, R. J. and Peters, N.C.B. 1972. Germination periodicity, plant survival and seed production in populations Avena fatua growing in spring barley. Proc. Br. Weed Control Conf. Pages 218225.
5. 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. 14:197202.
6. Haizel, K. A. and Harper, J. L. 1973. The effects of density and timing of removal on interference between barley, white mustard and wild oats. J. Appl. Ecol. 10:2331.
7. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds. Distribution and Biology. East-West Center, Univ. of Hawaii Press. 609 pp.
8. McBeath, D. K., Dew, D. A., and Friesen, H. A. 1970. Competition between barley and wild oats as affected by nitrogen, barban and time of seeding. Can. J. Plant Sci. 50:541550.
9. McNamara, D. W. 1976. Wild oat density and the duration wild oat competition as it influences wheat growth and yields. Aust. J. Agric. Anim. Husb. 16:402406.
10. Morishita, D. W. and Thill, D. C. 1988. Factors of wild oat (Avena fatua) interference on spring barley (Hordeum vulgare) growth and yield. Weed Sci. 36:3742.
11. Morrow, L. A. and Gealy, D. R. 1983. Growth characteristics of wild oat (Avena fatua) in the Pacific Northwest. Weed Sci. 31:226229.
12. Pavlychenko, T. K. and Harrington, J. B. 1935. Root development of weeds and crop in competition under dry farming. Sci. Agric. 16:151160.
13. Peters, N.C.B. and Wilson, B. J. 1983. Some studies on the competition between Avena fatua L. and spring barley. II. Variation of A. fatua emergence and development and its influence on crop yield. Weed Res. 23:305311.
14. Pfeiffer, R. K. and Holmes, H. M. 1961. A study of the competition between barley and oats as influenced by barley seedrate, nitrogen level and barban treatment. Weed Res. 1:518.
15. Scholander, P. F., Hammel, H. T., Bradstreet, E. D., and Hemmingsen, E. A. 1965. Sap pressure in vascular plants. Sci. 148: 339346.
16. Scragg, E. R. and McKelvie, A. D. 1976. The effect of certain species of weeds on the grain yield of spring barley. Ann. Appl. Biol. 83:335338.
17. 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. 57:811817.
18. 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. 47:716739.
19. Thurston, J. M. 1962. The effect of competition from cereal crops on the germination and growth of Avena fatua L. in a naturally infested field. Weed Res. 2:192207.
20. Williams, B. A., Gurner, P. J., and Austin, R. B. 1982. A new infrared gas analyzer and portable photosynthesis meter. Photosynth. Res. 3:141151.
21. Wilson, B. J., Cousans, G. W., and Ayers, P. 1974. The effects of triallate and barban on the control of Avena fatua in spring barley on the yield of barley and the presence of Avena fatua seeds in the harvested grain. Proc. Br. Weed Control Conf. 2532.
22. Wilson, B. J. and Peters, N.C.B. 1982. Some studies of competition between Avena fatua L. and spring barley. I. The influence of A. fatua L. on yield of barley. Weed Res. 22: 143148.


Related content

Powered by UNSILO

Wild Oat (Avena fatua) and Spring Barley (Hordeum vulgare) Growth and Development in Monoculture and Mixed Culture

  • Don W. Morishita (a1) and Donald C. Thill (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.