Honorary Life Membership President President-Elect Vice-President Past-President Secretary Treasurer Director Director Director Director Director Joseph J. Pavek Steven Slack Ronald E. Voss Donald A. Young David Curwen Therese Work Alvin Mosley Joseph B. Sieczka Robert Hanneman, Jr. David G. Holm Gene Shaver Section Chairs Ex Officio Breeding/Genetics Steve Love Certification Dave Hammond Extension Susan R. Sterrett Pathology Dennis Corsini Physiology Jane Seabrook Utilization Ed Lulai David Curwen, Chairman Ken Knutson Donald A. Young, Chairman Florian I. Lauer Zosimo Huaman Alvin Mosley Joseph B. Sieczka David P. Weingartner, Chairman Greg Porter Robert Mercer Ed Lulai Gilbert Banville Gary Secor Ken Knutson, Co-chairman David Holm, Co-chairman Robert Davidson Gary Franc Monty Harrison Wayne Thompson
In general, almost all programs have experienced difficulties of virus infections and/or other diseases in the cutting operations. A careful and systematic testing program must be developed with micro-propagation methods. More production ofin vitro plantlets and cuttings is usually needed in the early years of a program than is needed later. The re-use of non-certified seed derived from high quality certified seed eventually reduces the demand for certified seed. Over production of cuttings is not an uncommon occurrence as a seed program matures.
Population levels ofMyzus persicae (Sulzer) were studied on potato tubers in diffuse light and dark rustic storage houses in Peru. No differences in numbers of aphids/sprouted eye on potatoes infested naturally during storage in diffuse light or darkness were observed. Significantly more alate aphids were observed on tubers stored in darkness than in diffuse light storage houses. Viral transmission was occurring during the storage period. The incidence of viral transmission was not significantly influenced by storing tubers in diffuse light or dark storages. There were significantly more plants infected with virus from tubers that had not been sprayed for aphid control than from tubers that had been sprayed
J. Brian Sanderson合作论文数2Duane Preston合作论文数2
David G. Holm合作论文数Department of Zoology;University of British;Department of Zoology, University of British2David Curwen合作论文数2R. W. Chase合作论文数1Robert H. Booth合作论文数1Alvin Mosley合作论文数1Ronald E. Voss合作论文数1Maria Mayer de Scurrah合作论文数1Rk Prange合作论文数1James R. Letal合作论文数1Randall C. Rowe合作论文数1Edward F. Johnston合作论文数1
Rosemary Loria合作论文数Department of Plant Pathology, University of Florida;Institute of Food and Agricultural Sciences, University of Florida1Zosimo Huaman合作论文数1Florian I. Lauer合作论文数1C D Weenink Van Loon合作论文数1K. W. Knutson合作论文数1Joseph J. Pavek合作论文数1Robert B. Dwelle合作论文数1Fred Cole合作论文数1Donald A. Young合作论文数Agriculture Canada Research Station1Joseph B. Sieczka合作论文数1
David Douches合作论文数Department of Plant, Soil and Microbial Sciences, College of Agriculture & Natural Resources, Michigan State University1Slack Steven合作论文数1Bruce L. Parker合作论文数1Dan Hane合作论文数1
Shelley Jansky合作论文数College of Agricultural & Life Sciences, University of Wisconsin-Madison1Shirlyn E. Coleman合作论文数1Stephen L. Sinden合作论文数1
