Stone grafting is the efficient and popular technique of rapid multiplication of quality planting material in mango. Severe mortality of sprouted grafts takes place if proper care is not taken.[adinserter block=”1″]
During the investigation was initially thought that the disease is caused by fungus Fusarium oxysporum. However, it was observed that the wilting continued after fungicidal covering. The detail investigations revealed that different non-biological (abiotic)causes are associated with this disease. These are
- Use of improper potting mixture and poor drainage in polybags.
- Incompatibility between rootstock and scion.
- Exposure of graft to intense rain showers.
Newly sprouted grafts having light green colored leaves show sudden drooping and loss of turgidity followed by wilting of the graft in the next two to three days. There is longitudinal shrinkage of the stem followed by drying of leaves. Normally such type of wilting is observed15-20 days after sprouting. Rootstock of such wilted plants many times sprouts from the base indicating the incompatibility of rootstock and scion.