Hostname: page-component-5c6d5d7d68-vt8vv Total loading time: 0.001 Render date: 2024-08-15T01:22:37.987Z Has data issue: false hasContentIssue false
  • English
  • Français

Intervarietal competition in yield trials with cotton

Published online by Cambridge University Press:  27 March 2009

Basil G. Christidis
Basil G. Christidis
Affiliation:
(Of theGreek Cotton Institute, Salonica, Greece.)
Get access Rights & Permissions [Opens in a new window]

Extract

The effect which different varieties grown on small plots side by side may have upon each other is usually termed competition. Naturally if a tall variety, or one having a root system highly developed, is planted on small plots in alternation with a short variety or one with small roots, it is to be expected that the latter will suffer from the unfavourable neighbourhood, whereas the former will be benefited. In other words, when testing varieties differing in their habits of growth, etc., owing to the effect of competition some of them may appear better and others worse than they are under natural conditions.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 25 , Issue 2 , April 1935 , pp. 231 - 237
Copyright
Copyright © Cambridge University Press 1935

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

REFERENCES

(1)Coombs, A. V.The border effect in plot experiments. Emp. J. exp. Agric. (1934), 2, 315–23.Google Scholar
(2)Fisher, R. A.Statistical Methods for Research Workers (1930). Third edition. Edinburgh.Google Scholar
(3)Hays, H. K. and Arny, A. C.Experiments in field technique in rod row tests. J. Agric. Res. (1917), 11, 399–419.Google Scholar
(4)Immer, F. R.Varietal competition as a factor in yield trials with sugar beet. J. Amer. Soc. Agron. (1934), 26, 259–61.CrossRefGoogle Scholar
(5)Kiesselbach, T. A.Competition as a source of error in comparative corn yield. J. Amer. Soc. Agron. (1923), 15, 199–215.Google Scholar
(6)Ligon, L. L.Size of plot and number of replications in field experiments with cotton. J. Amer. Soc. Agron. (1930), 22, 689–99.Google Scholar
(7)Love, H. H.The experimental error in field trials. J. Amer. Soc. Agron. (1919), 11, 212–16.Google Scholar
(8)Montgomery, E. G.Competition in cereals. Bull. Neb. agric. Exp. Sta. (1912), No. 127, 1–22.Google Scholar
(9)Stadler, L. J.Experiments in field plot technic for the preliminary determination of comparative yields in the small grains. Bull. Mo. Agric. Exp. Sta. (1921), No. 49.Google Scholar
(10)Stringfield, G. H.Intervarietal competition among small grains. J. Amer. Soc. Agron. (1927), 19, 971–83.CrossRefGoogle Scholar
(11)Christidis, B. G.The importance of the shape of plots in field experimentation. J. agric. Sci. (1931), 21, 14–37.CrossRefGoogle Scholar