Received for publication June 28, 1978. Contribution No. 1006 from the Department of Plant Pathology. Paper No. 5407 in the Journal Series of the Pennsylvania Agricultural Experiment Station, and Contribution No. 485-77, Center for Air Environment Studies, The Pennsylvania State University, University Park, Pa. 16802.
Present Address: 211 Buckhout Laboratory, University Park, PA 16802.
Associate Professor and undergraduate student, respectively. This study was supported in part by a grant from I. E. DuPont de Nemours and Company. The authors acknowledge W. Weissberger for technical assistance.
|All Time||Past Year||Past 30 Days|
|Full Text Views||7||7||0|