Some orchardists have reduced the problem by grafting troublesome scion clones on cuttings of rootstocks which have been anatomically tested and found compatible with the problem clones. This procedure usually requires testing each anbsp;...
|Title||:||Selection and propagation of highly graft-compatible Douglas-fir rootstocks, a case history|
|Author||:||Donald L. Copes, Pacific Northwest Forest and Range Experiment Station (Portland, Or.)|