Article Figures & Data
Figures
- Figure 1
Heat unit accumulation by Pinot noir phenological stage of development in Dayton, OR. Bloom is defined as 50% capfall, and veraison was defined as the start of color development in at least 5% of berries on 50% of clusters. Heat units are shown as GDD10, or growing degree days with a minimum temperature threshold of 10°C; data were calculated using daily temperatures (T) obtained from a regional weather station (Aurora, OR; ARAO, Agrimet, https://www.usbr.gov/pn/agrimet/) using the equation (Tmax + Tmin)/2 - 10°C.
- Figure 2
Mean berry mass measured from post-fruit set to harvest during six growing seasons (2011 to 2016) from a commercial Pinot noir vineyard in Dayton, OR.
- Figure 3
Increase factors of Pinot noir clusters, determined by comparing cluster weights during development to final cluster weight at harvest during six growing seasons (2011 to 2016) in a commercial vineyard in Dayton, OR. Relationships of increase factors are shown for A) days post-budbreak (y = 8518472 x-3.26, root mean square error [RMSE] = 0.7142); B) days post-50% capfall (y = 551.61 x-1.45, RMSE = 0.6309); C) growing degree days (GDD) base 10°C post-budbreak (y = 84609124 x-2.66, RMSE = 0.7794); D) GDDs base 10°C post-50% capfall (y = 16216.31 x-1.46, RMSE = 0.6126); E) GDDs base 50°F post-budbreak (y = 402640001 x-2.66, RMSE = 0.7785); and F) GDDs base 50°F post-50% capfall (y = 38007.28 x-1.46, RMSE = 0.6132).
- Figure 4
Comparison of cluster weight increase factors using the model increase factor at day count post-50% capfall (y = 551.61 x-1.45) and the actual Pinot noir cluster size increase factor measured in a commercial Pinot noir Pommard vineyard in Newberg, OR during the 2020 growing season.
Tables
Vol 6 Issue 1
