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Science 26 July 1974:
Vol. 185. no. 4148, pp. 370 - 372
DOI: 10.1126/science.185.4148.370
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Articles

Biological Suppression of Weeds: Evidence for Allelopathy in Accessions of Cucumber

Alan R. Putnam 1 and William B. Duke 2

1 Department of Horticulture, Pesticide Research Center, Michigan State University, East Lansing 48824
2 Department of Agronomy, Cornell University, Ithaca, New York 14850

Cucumber (Cucumis sativus L.) accessions from 41 nations were grown with two indicator species in a search for superior competitors. Of the plant introductions tested, one inhibited indicator plant growth by 87 percent and 25 inhibited growth by 50 percent or more. The toxicity of leachates from pots containing inhibitory cucumbers to indicator plants germinated in separate containers suggested allelopathy. Incorporation of an allelopathic character into a crop cultivar could provide the plant with a means of gaining a competitive advantage over certain weeds.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Quantitative Trait Loci Analysis of Allelopathy in Rice.
L. B. Jensen, B. Courtois, and M. Olofsdotter (2008)
Crop Sci. 48, 1459-1469
   Abstract »    Full Text »    PDF »
Variation in the Allelopathic Effect of Rice with Water Soluble Extracts.
K. Ebana, W. Yan, R. H. Dilday, H. Namai, and K. Okuno (2001)
Agron. J. 93, 12-16
   Abstract »    Full Text »


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