Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-23T02:12:10.519Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of winter barley cultivar mixtures on lodging

Published online by Cambridge University Press:  27 March 2009

H. Stützel  and
W. Aufhammer
H. Stützel
Affiliation:
Institut für Pflanzenbau, Universität Hohenheim, Fruwirthstr. 23, 7000 Stuttgart 70, Federal Republic of Germany
W. Aufhammer
Affiliation:
Institut für Pflanzenbau, Universität Hohenheim, Fruwirthstr. 23, 7000 Stuttgart 70, Federal Republic of Germany
Get access Rights & Permissions [Opens in a new window]

Summary

The potential of selected cultivar mixtures to decrease lodging and consequently improve yields in winter barley was examined in field experiments at two locations over 2 years. The experiments were designed to identify growing conditions and varietal characteristics associated with mixture effects, i.e. the deviations from arithmetic pure cultivar means, and to compare the latter with effects of growth regulators. Pathogens were controlled chemically.

Use of mixtures tended to reduce initial lodging. With increasing lodging, desired mixture effects prevailed in mixtures of cultivars highly susceptible with those highly resistant to lodging. On average, the yield advantage of mixtures compared with pure stands was small; it was greater when lodging decreased yield of a pure cultivar. Reductions in lodging prevailed in two-component mixtures; adding more components was of no advantage.

When lodging developed steadily, effects of mixtures on grain yields were comparable to those of growth regulators. When lodging was caused suddenly by a thunderstorm, only growth regulator applications resulted in yield improvements. Growth regulators resulted in yield advantages in two of the four trials only.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 112 , Issue 1 , February 1989 , pp. 47 - 55
Copyright
Copyright © Cambridge University Press 1989

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

Aufhammer, W., Kübler, E. & Stützel, H. (1984). Effekte der Sortenmischung auf die Ertragsbildung von Gerstenbeständen. Journal of Agronomy and Crop Science 153, 385–397.Google Scholar
Aufhammer, W. & Stützel, H. (1986). Einflüsse von Sortenmischungen bei Wintergerste auf den Befall mit Blattkrankheiten. Journal of Plant Diseases and Protection 93, 515–527.Google Scholar
Bundessortenamt, (1982). Beschreibende Sortenliste 1982. Getreide, Mais, Ölfruchte, Leguminosen (grosskörnig), Hackfrüchte außier Kartoffeln. Hannover: A. Strothe Verlag.Google Scholar
Grafius, J. E. (1966). Rate of change of lodging resistance, yield and test weight in varietal mixtures of oats Avena saliva L. Crop Science 6, 369–370.CrossRefGoogle Scholar
Jordan, V. W. L. & Stinchcombe, G. R. (1986). Interactions between fungicide, plant growth regulator, nitrogen fertiliser applications, foliar disease and yield of winter barley. Annals of Applied Biology 108, 151–168.CrossRefGoogle Scholar
Lang, R. W., Holmes, J. C., Taylor, B. R. & Waterson, H. A. (1975). The performance of barley variety mixtures. Experimental Husbandry 28, 53–59.Google Scholar
Qualset, C. O. & Granger, R. M. (1970). Frequency dependent stability of performance in oats. Crop Science 10, 386–389.CrossRefGoogle Scholar
Rajeswara Rao, B. R. & Prasad, R. (1984). Intergenotypic competition in mixed stands of spring wheat genotypes. Euphytica 33, 241–247.CrossRefGoogle Scholar
Richter, R. (1986). Biologische Wirkung ausgewählter Tankmischungen von Camposan mit Fungiziden bei Wintergerste und Winterroggen. Tagungsberichte der Akademie der Landwirtschaftswissenschaften der DDR (Berlin) 243, 73–84.Google Scholar
Schulzke, D. & Schädlich, F. (1986). Zur Wirkung von Wachstumsregulatoren auf die Ertragsbildung von Wintergetreide bei differenzierten Bestandeszuständen. Tagungsberichte der Akademie der Landwirtschaftswissenschaften der DDR (Berlin) 243, 57–62.Google Scholar
Stützel, H. (1985). Untersuchungen zur Leistungsfähigkeit von Sortenmischungen bei Wintergerste. Dissertation, Universität Hohenheim.Google Scholar
Zadoks, J. C., Chang, T. T. & Konzak, C. F. (1974). Decimal code for the growth stages of cereals. Weed Research 14, 415–421.CrossRefGoogle Scholar