University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Spring 1958 STUDIES ON SOME APPLE VIRUS DISEASES IN NEW HAMPSHIRE JOSEPH G. BARRAT Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation BARRAT, JOSEPH G., "STUDIES ON SOME APPLE VIRUS DISEASES IN NEW HAMPSHIRE" (1958). Doctoral Dissertations. 752. https://scholars.unh.edu/dissertation/752 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact
[email protected]. Dapple apple symptoms on the fruits of the variety Starking. STUDIES ON SOME APPLE VIRUS DISEASES IN NEW HAMPSHIRE By Joseph G. Barrat B. S., Rhode Island State College, 19*+8 M. S., University of Rhode Island, 1951 A DISSERTATION Submitted to the University of New Hampshire In Partial Fulfillment of The Requirements for the Degree of Doctor of Philosophy Graduate School Department of Botany May, 1958 This dissertation has been examined and approved. ■?. / T Date ACKNOWLEDGMENTS The writer wishes to express his deep appreciation to Dr. Avery E. Rich for his assistance and permission to develop the study along those lines which seemed most opportune. The writer is indebted to Dr. Albion R. Hodgdon for his taxonomic assistance, Dr. Stuart Dunn for permis sion to use the available space in the light room, Dr, R. A. Kilpatrick for help with the photographs and Dr. W.