The green berries ripening controversy
As we enter veraison, we observe that the window during which berries are changing color is stretching due to the weather cooling off. What does this mean for the uniformity of ripening?
Traditionally it is assumed that the rate of ripening is uniform between berries. Consequently, when a berry turns red later, it is believed to ripen later. Thus, when change in cluster coloration takes longer than usual, the removal of green berries from the cluster is sometimes decided. The thinking is that removal of delayed ripening berries would reduce cluster heterogeneity and help winemakers get more even cluster composition at harvest.
A natural mechanism advances the rate of ripening in green berries compared to red berries
- Ripening program is flexible from berries to berries.
- Uneven berry formation and uneven coloration at mid veraison does not mean uneven ripeness.
- Faster accumulation in under ripe berries reduces ripening differences among berries.
Practicing green berry thinning when veraison takes longer than usual may not be such a good idea after all.
Fruition Sciences follows latest research and shares with you our insights from the field. Our product Sap Flow helps you monitor your water use and identify significant water savings opportunities for grape growers while enhancing the quality of the fruit.
Cat graduated from the University of California Santa Cruz with a B.A. in Environmental Studies with a focus on sustainable agriculture and a minor in Latin American development. Through her work on organic farms abroad and her job in sales for an organic clothing company in Santa Cruz, Cat strengthened her passion for adventure, personal connection and fostering sustainable action. Joining the Fruition team as a Field Technician for the 2016 season, she now assists in all aspects of field operations as Head Technician.
Share this post :