Response of live oak selections to inoculation with Ceratocystisfagacearum Academic Article uri icon

abstract

  • Progeny from 26 live oak (Quercusvirginiana Mill. and Quercusfusiformis Small) were inoculated with conidia of Ceratocystisfagacearum (T.W. Bretz) J. Hunt. in two trials. The oaks were either superior selections, slow-growing selections rejected from a tree improvement program, postepidemic survivors in an oak wilt center, or preepidemic trees outside the oak wilt center. Symptom development was monitored for 244 and 99 days in the two trials. Seedlings from the postepidemic population survived significantly better than those from the preepidemic trees. Considerable diversity existed among the responses of the superior selections tested. In general, seedlings from the pre- and post-epidemic populations developed symptoms faster than seedlings from the tree improvement program; however, rapidity of symptom development was not a good predictor of final survival. Postepidemic seedlings survived as well as selections in one trial and better than most selections in the other trial.

author list (cited authors)

  • Greene, T. A., & Appel, D. N.

citation count

  • 4

publication date

  • March 1994