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Cotton verticillium wilt control with soil fumigation

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Authors

Stephen Wilhelm, University of California
R. C. Storkan, Trical, Inc.
James E. Sagen, University of California
Alan G. George, Tulare County
Helga Tietz, University of California

Publication Information

California Agriculture 26(10):4-6.

Published October 01, 1972

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Abstract

A detailed study of both individual cotton plants and data from the overall performance of large fumigation plots, resulted in convincing evidence that early season infection by Verticillium wilt may drastically reduce yield. Yield reductions were reflected in reduced production per plant and in bolls of lighter weight. Where infection of individual plants occurred from seedling to harvest, and occurred more severely on some plants than on others, yield reductions resulted from the production of fewer bolls per foot of row, and lighter boll weight averages. Fumigation obviously controlled soil-borne pathogens other than Verticillium—some perhaps unknown—so the total effect of fumigation evidenced in the second year may not have resulted from Verticillium wilt control alone. High plant vigor and dense plant populations undoubtedly reduced yields in fumigated plots.

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Cotton verticillium wilt control with soil fumigation

Stephen Wilhelm, R. C. Storkan, James E. Sagen, Alan G. George, Helga Tietz
Webmaster Email: wsuckow@ucanr.edu

Cotton verticillium wilt control with soil fumigation

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

Stephen Wilhelm, University of California
R. C. Storkan, Trical, Inc.
James E. Sagen, University of California
Alan G. George, Tulare County
Helga Tietz, University of California

Publication Information

California Agriculture 26(10):4-6.

Published October 01, 1972

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

A detailed study of both individual cotton plants and data from the overall performance of large fumigation plots, resulted in convincing evidence that early season infection by Verticillium wilt may drastically reduce yield. Yield reductions were reflected in reduced production per plant and in bolls of lighter weight. Where infection of individual plants occurred from seedling to harvest, and occurred more severely on some plants than on others, yield reductions resulted from the production of fewer bolls per foot of row, and lighter boll weight averages. Fumigation obviously controlled soil-borne pathogens other than Verticillium—some perhaps unknown—so the total effect of fumigation evidenced in the second year may not have resulted from Verticillium wilt control alone. High plant vigor and dense plant populations undoubtedly reduced yields in fumigated plots.

Full text

Full text is available in PDF.

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