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Moth resistance of armored-layer sunfi ower seeds

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Authors

Elmer C. Carlson, University of California
Robert Witt, University of California

Publication Information

California Agriculture 28(11):12-14.

Published November 01, 1974

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Abstract

Sunflower varieties having plants with armored-layer seeds resulted in a high reduction of seed damage caused by larval feeding of the sunflower moth, Homoeosoma electel-lum (Hulst). Several sunflower lines were significantly more resistant to seed damage when the plants had armored-layer seeds than when the same lines had non-armored-layer seeds. The association of the armored layer with moth resistance was also shown by its significant reduction in the number of emerging adults. However, the same lines having plants with no armor still retained some resistance (compared with the check), which indicated that some chemical factors were also involved. Laboratory tests also indicated that the nature of resistance was partially chemical.

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Author notes

Assisting in the study were John Campbell, formerly nurseryman at U.C. Davis arid Dr. Benjamin Beard, Research Geneticist, USDA—ARS, Davis. Sunflower plants were grown for this research with the. cooperation of the Department of Agronomy and Range Science.

Moth resistance of armored-layer sunfi ower seeds

Elmer C. Carlson, Robert Witt
Webmaster Email: wsuckow@ucanr.edu

Moth resistance of armored-layer sunfi ower seeds

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

Elmer C. Carlson, University of California
Robert Witt, University of California

Publication Information

California Agriculture 28(11):12-14.

Published November 01, 1974

PDF  |  Citation  |  Permissions

Abstract

Sunflower varieties having plants with armored-layer seeds resulted in a high reduction of seed damage caused by larval feeding of the sunflower moth, Homoeosoma electel-lum (Hulst). Several sunflower lines were significantly more resistant to seed damage when the plants had armored-layer seeds than when the same lines had non-armored-layer seeds. The association of the armored layer with moth resistance was also shown by its significant reduction in the number of emerging adults. However, the same lines having plants with no armor still retained some resistance (compared with the check), which indicated that some chemical factors were also involved. Laboratory tests also indicated that the nature of resistance was partially chemical.

Full text

Full text is available in PDF.

Author notes

Assisting in the study were John Campbell, formerly nurseryman at U.C. Davis arid Dr. Benjamin Beard, Research Geneticist, USDA—ARS, Davis. Sunflower plants were grown for this research with the. cooperation of the Department of Agronomy and Range Science.


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