A. R. Biggs, West Virginia University, University Experiment Farm. P. O. Box 609, Kearneysville, WV 25430, D. D. Davis and W. Merrill, Dept. of Plant Pathology, Pennsylvania State University, University Park, PA, 16802.

ABSTRACT

Biggs, A. R., D. D. Davis, and W. Merrill. 1983. Cutting development and restriction of wound-associated infection in Populus. Can. J. Plant Pathol. 5:269-272.

Cuttings of Populus hybrid ‘NE-388' (P. Maximowiczii x trichocarpa) were inoculated at regular intervals after planting with mycelium of Cytospora chrysosperma. Canker size after 1 week was positively correlated with preinoculation bark relative turgidity as well as root and shoot length, and negatively correlated with preinoculation bark water potential. A positive correlation existed between preinoculation bark water status, stage of cutting development, and rate of initiation of phellogen regeneration.