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Internal rib necrosis head lettuce in Imperial Valley

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Authors

Hunter Johnson, University of California, RiversideUniversity of California, Riverside
D. R. Woodruff, Imperial County
T. W. Whitaker, Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, La Jolla, California

Publication Information

California Agriculture 24(9):8-10.

Published September 01, 1970

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Abstract

Planting resistant varieties appears to be today's only solution to the closely related Imperial Valley lettuce problems of (I) internal rib necrosis (see photo) which develops in the field during maturity, and (2) rusty rib (see cover) which develops after harvest during cold storage. The popular variety Climax is highly susceptible to both.

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Author notes

Cooperating in these studies were A. J. Mackenzie, Superintendent, and R. O. Standridge, Agricultural Research Technician, both of USD A Southwestern Irrigation Field Station, Brawley, California; and Adolph Van Maren, County Director and Farm Advisor, Imperial County. Photography were by Albert O. Paulus, Extension Plant Pathologist, University of California, Riverside.

Internal rib necrosis head lettuce in Imperial Valley

Hunter Johnson, D. R. Woodruff, T. W. Whitaker
Webmaster Email: wsuckow@ucanr.edu

Internal rib necrosis head lettuce in Imperial Valley

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

Hunter Johnson, University of California, RiversideUniversity of California, Riverside
D. R. Woodruff, Imperial County
T. W. Whitaker, Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, La Jolla, California

Publication Information

California Agriculture 24(9):8-10.

Published September 01, 1970

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Planting resistant varieties appears to be today's only solution to the closely related Imperial Valley lettuce problems of (I) internal rib necrosis (see photo) which develops in the field during maturity, and (2) rusty rib (see cover) which develops after harvest during cold storage. The popular variety Climax is highly susceptible to both.

Full text

Full text is available in PDF.

Author notes

Cooperating in these studies were A. J. Mackenzie, Superintendent, and R. O. Standridge, Agricultural Research Technician, both of USD A Southwestern Irrigation Field Station, Brawley, California; and Adolph Van Maren, County Director and Farm Advisor, Imperial County. Photography were by Albert O. Paulus, Extension Plant Pathologist, University of California, Riverside.


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