Studies on the Relation Between Silica in Wheat Plants and Resistance to Hessian Fly Attack1

Authors: MILLER, BYRON S.; ROBINSON, ROBERT J.; JOHNSON, JOHN A.; JONES, ELMER T.; PONNAIYA, B. W. X.

Source: Journal of Economic Entomology, Volume 53, Number 6, December 1960 , pp. 995-999(5)

Publisher: Entomological Society of America

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Abstract:

The leaf sheaths of certain wheat plants and one variety of oats that are resistant to hessian fly attack appear to have a much more complete and even distribution of silica deposits on their surface than do those of susceptible varieties. The silica deposits in the latter varieties are in the form of rod-shaped masses which are arranged in dispersed rows. The density of deposition depends on the physiological age of the plant. and emphasizes the necessity of considering this factor in studying the problem of resistance. Certain varieties were demonstrated to have silieified hairs on the surface of the sheath. Most of these varieties were susceptible to hessian fly attack.

These results suggest that the presence of silica depositions on wheat plant tissue may be one of the factors related to resistance of certain varieties to hessian fly attack. Since there are several parental sources of resistance to hessian fly other factors also may be involved.

Document Type: Research Article

Publication date: December 1, 1960

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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