Testing Graft Incompatibility Detection Procedures on Interior Douglas-Fir
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Abstract Grafts of 21 mature inland Douglas-fir trees (Pseudotsuga menziesii var. glauca) were used to test the anatomical and electrophoretic methods of detecting graft incompatibility that were developed for the coastal variety of the species. Both methods were found to be effective. Incompatibility averaged 34% when evaluated by anatomical examination; and electrophoretic analysis of isozymes, 19 to 20 months after grafting, was 82% accurate in detecting incompatible grafts. Sixty percent of the incompatible grafts had externally visible bark fissures along the contact zone between scion and rootstock. One clone had greater than 90% compatibility. West. J. Appl. For. 6(2):39-42.
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1998 ◽
Vol 28
(8)
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pp. 1198-1206
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