Climate Change Affects Choice and Management of Training Systems in the Grapevine

Figure 2

Light saturation curves that correlate the intensity of the incident radiation (PDF) to the net photosynthesis () in Sangiovese leaves and in two training systems, SHW and VSP. The percentages indicate, in correspondence with the light saturation point, the extent of the reduction in with respect to free canopy vs. single leaf (−48%) and palisade canopy wall vs free canopy (−26%). Different PFD levels were obtained by superimposing on the leaf or the whole canopy chamber a different number of layers of black mesh (45% light transmission). Redrawn from [26].