What are the early warning signs of delayed graft incompatibility?

What are the early warning signs of delayed graft incompatibility?

• A. Heavy flowering, early fall color
• B. Drought stress
• C. Late fall color
• D. Leaf scorch

Answer: (A)

The main idea here is that delayed graft incompatibility can show up as unusual development patterns that reveal the graft union isn’t functioning normally. When the scion and rootstock aren’t integrating properly, hormonal signals and nutrient flow can become unbalanced. That can lead to signs like more flowering than expected and leaves changing color earlier in the season. Seeing unusually heavy flowering paired with early fall color suggests the graft isn’t supporting normal growth, which is why this combination is an early warning sign of incompatibility. Drought stress tends to produce wilting, leaf curling, and browning edges rather than a pattern of altered flowering and early color change. Late fall color and leaf scorch are more general stress indicators and not specifically tied to graft incompatibility.

The main idea here is that delayed graft incompatibility can show up as unusual development patterns that reveal the graft union isn’t functioning normally. When the scion and rootstock aren’t integrating properly, hormonal signals and nutrient flow can become unbalanced. That can lead to signs like more flowering than expected and leaves changing color earlier in the season. Seeing unusually heavy flowering paired with early fall color suggests the graft isn’t supporting normal growth, which is why this combination is an early warning sign of incompatibility.

Drought stress tends to produce wilting, leaf curling, and browning edges rather than a pattern of altered flowering and early color change. Late fall color and leaf scorch are more general stress indicators and not specifically tied to graft incompatibility.