The progression and distribution of graft incompatibility in Araucaria cunninghamii Ait. ex D. Don

• Published in: Silvae genetica Vol. 39; no. 2; pp. 62 - 66
• Main Authors: Haines, R.J. (Forestry Research Centre, Gympie (Australia)), Dieters, M.J
• Format: Journal Article
• Language: English
• Published: Frankfurt am Main Sauerländer 1990
• Subjects: Agronomy. Soil science and plant productions; ARAUCARIA CUNNINGHAMII; Biological and medical sciences; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; GRAFTING; GREFFAGE; INJERTO; Inkompatibilitaet; Pfropfreis; Pfropfung; Pfropfunterlage; QUEENSLAND; Vegetative propagation. Micropropagation; Vegetative propagation. Sowing and planting. Harvesting; Versuche; Incompatibility; Vegetative propagation; Seed orchard; Gymnospermae; Softwood forest tree; Lateness; Scion; Flowering; Graft; Spermatophyta; Coniferales; Earliness; Clonal propagation; Elongation
• ISSN: 0037-5349; 2509-8934

The progression and distribution of graft incompatibility in Araucaria cunninghamii were examined using grafting records and scion assessment data which were available for a total of 199 clones in seed orchards and clone banks up to 15 years after grafting. The species displays a smooth progression in the onset of incompatibility, tailing off to a final overall incidence of 31% by 10 years after grafting. Although no sharp chronological demarcation is apparent, there is some justification for classification into "early" and "delayed" forms on the basis of the extent of scion elongation prior to the manifestation of incompatibility symptoms.