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Seeding Arrangement on Winter Wheat (Triticum aestivum) Grain Yield and Interaction with Italian Ryegrass (Lolium multiflorum)

Published online by Cambridge University Press:  12 June 2017

Arnold P. Appleby  and
Bill D. Brewster
Arnold P. Appleby
Affiliation:
Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331
Bill D. Brewster
Affiliation:
Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331
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Abstract

Studies were conducted to determine whether cross-seeding of winter wheat, while maintaining an equal seeding rate per hectare, would increase wheat grain yields and help the wheat compete more effectively against Italian ryegrass than conventional seeding. Wheat was seeded at rates of 50, 100, and 150 kg ha-1 in conventional parallel rows or cross seeded in a grid pattern. Ryegrass was seeded at densities of 0, 20, 100, and 200 plants per m-2. Cross-seeded wheat yielded less grain than single-seeded wheat in 1990 in the absence of ryegrass; there were no differences in 1991. Cross seeding did not reduce competition from Italian ryegrass. Ryegrass was highly competitive against wheat, especially in 1990. Even 20 plants per m-2 reduced grain yield by an average of 38%. Wheat seeding rate had essentially no effect on grain yield in 1990, but the higher seeding rates reduced yields in 1991 because of extensive lodging. In 1991, wheat grain yields were higher in the cross-seeded plots than the single-seeded plots at the two high wheat seeding rates and highest ryegrass densities. Cross seeding does not appear promising as an aid to controlling ryegrass in Pacific Northwest wheat.

Keywords

Italian ryegrass, Lolium multiflorum Lam.# LOLMUwheat, Triticum aestivum L. ‘Stephens'Competitioncross seedinginterferenceseeding densityLOLMU
Type
Research
Information
Weed Technology , Volume 6 , Issue 4 , December 1992 , pp. 820 - 823
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Appleby, A. P., Olson, P. D., and Colbert, D. R. 1976. Winter wheat yield reduction from interference by Italian ryegrass. Agron. J. 68:463–466.Google Scholar
2. Auld, B. A., Kemp, D. R., and Medd, R. W. 1983. The influence of spatial arrangement on grain yield of wheat. Aust. J. Agric. Res. 34:99–108.Google Scholar
3. Brewster, B. D., Appleby, A. P., and Spinney, R. L. 1977. Control of Italian ryegrass and wild oats in winter wheat with HOE 23408. Agron. J. 69:911–913.Google Scholar
4. Darwinkel, A. 1978. Patterns of tillering and grain production of winter wheat at a wide range of plant densities. Neth. J. Agric. Sci. 26:383–398.Google Scholar
5. Dhillon, G. S. and Kler, D. S. 1978. Canopy—geometry studies in wheat. Indian J. Agron. 23:82.Google Scholar
6. Evans, S. A. 1977. The influence of plant density and distribution and applied nitrogen on the growth and yield of winter wheat and spring barley. Exp. Husb. 33:120–126.Google Scholar
7. Fawcett, R. G. 1964. Effect of certain conditions on yield of crop plants. Nature 204:856–860.Google Scholar
8. Fischer, R. A. and Miles, R. E. 1973. The role of spatial pattern in the competition between crop plants and weeds. A theoretical analysis. Math. Biosci. 18:335–350.Google Scholar
9. Jardine, W. M. 1916. Effect of rate and date of sowing on yield of winter wheat. Agron. J. 8:163–166.CrossRefGoogle Scholar
10. Joseph, K.D.S.M., Alley, M. M., Brann, D. E., and Gravelle, W. D. 1985. Row spacing and seeding rate effects on yield and yield components of soft red winter wheat. Agron. J. 77:211–214.Google Scholar
11. Kemp, D. R., Auld, B. A., and Medd, R. W. 1983. Does optimizing plant arrangements reduce interference or improve the utilization of space? Agric. Syst. 12:31–36.Google Scholar
12. Ketata, H., Edwards, L. H., and Morrison, R. D. 1976. Response of three hard red winter wheat cultivars to four planting arrangements. Agron. J. 68:428–429.Google Scholar
13. Medd, R. W., Auld, B. A., Kemp, D. R., and Murison, R. D. 1985. The influence of wheat density and spatial arrangement on annual ryegrass, Lolium rigidum, competition. Aust. J. Agric. Res. 36:361–371.Google Scholar
14. Nerson, H. 1980. Effects of population density and number of ears on wheat yield and its components. Field Crops Res. 3:225–235.Google Scholar
15. Pant, M. M. 1979. Dependence of plant yield on density and planting pattern. Ann. Bot. 44:513–516.Google Scholar
16. Puckridge, D. W. and Donald, C. M. 1967. Competition among wheat plants sown at a wide range of densities. Aust. J. Agric. Res. 18:193–211.Google Scholar
17. Singh, K. P., Singh, V. P., and Hoods, I. S. 1978. Plant geometry in wheat. Indian J. Agric. Res. 12:209–210.Google Scholar
18. Sharma, K. C. and Singh, M. 1971. Response of dwarf wheats to methods of sowing and seed rates. Indian J. Agron. 16:413–415.Google Scholar
19. Stoskopf, N. C. 1967. Yield performance of upright-leaved selections of winter wheat in narrow row spacings. Can. J. Plant Sci. 47:597–601.Google Scholar