PRO*ACT Crop Update: Citrus re-greening and de-greening
By
Tim Lynch
PRO*ACT Crop Update: Citrus re-greening and de-greening
By
Tim Lynch
Fruit grown in warmer climates doesn’t always develop a deep orange color and sometimes keeps some green on the skin. As the weather warms in the summer months the skin of Valencia oranges starts to reabsorb chlorophyll, which causes the fruit to turn partially green usually near the stem end — re-greening. The green is due to chlorophyll produced on the peel of the orange to protect itself from sunburn. Chlorophyll is vital for photosynthesis which allows the fruit to absorb energy from sunlight. Cold temperatures in the winter inhibit chlorophyll pigments, which give oranges their deep