WW ED 12-02
Anatomical and histological studies of Vitis grafting zones. What do we know about the possible causes of this grafting incompatibility?
Stellenbosch University, Department of Viticulture and Oenology
Deloire, A J
Kraeva-Deloire, E S
Every year a certain amount of grafted grapes show what is known in the industry as graft union incompatibility. Although the percentage of affected vines is low, a producer can easily cancel his order which will lead to an economical lost to the nursery in question.
The aims of this research are as follows:
- Describe and understand the dynamic of callus formation, cambium junction and new cambium functioning over three years in various combinations of Vitis (omega grafting, split grafting, woody and green grafting).
- Study biochemical markers of grafting incompatibility: phenols, peroxidase and starch (sugars are known to be strong cell to cell signals).
- Study the effect of wax and hormones during the callus formation
- Study few nursery conditions on the callus formation and cambium functioning
NO FINAL REPORT
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