Issue link: http://read.dmtmag.com/i/76198
Grapes When he measured odor activ- ity of beta-damascenone and sol- uble solids or Brix, balanced vines had higher odor levels than under- and overcropped vines, even though Brix levels were about the same. In another trial that examined dark fruit aromas versus green fruit aromas, he found that balanced vines were above the threshold (having adequate dark fruit aro- mas) earlier and at much lower soluble solids than undercropped vines. The undercropped vines eventually reached the threshold but at much higher soluble solids in comparison to the balanced vines. However, the overcropped vines never got there. Dokoozlian found cultivar dif- trellis systems (Geneva double curtain, vertical shoot position, and California sprawl) on photo- synthesis and fruit ripening, he found that the Geneva double curtain was the most efficient in terms of leaf area to crop weight ratio because of the difference in leaf exposure. The Geneva double curtain had 75 percent exposed leaf area compared to 45 percent for California sprawl and 35 percent for the vertical shoot position system. He noted that removing the Nick Dokoozlian ferences when measuring positive and negative aromas, mouth-feel, and color levels in balanced, under-, and overcropped vines. Aroma intensity in Cabernet Sauvi- gnon was highest in vines in the 7 to 10 yield to pruning weight ratio, but for mouth feel intensity, the highest lev- els were in yield to pruning weight ratios ranging from 4 to 7. In Chardonnay, a variety that is generally insensitive to crop load, he found little impact on aroma or mouth feel from the crop load. Canopy and trellis style also have an impact on fruit quality. When looking at the impact of three canopy or Dolco Packaging Dolco Foam Apple Trays will no to allow moisture run-off in Hot/Humid climate Available in Full Line of A (48's through 125's) Eliminates the use of l shoot laterals in a vertical shoot position Cabernet Sauvignon trial dramatically increased the aroma concentration and mouth-feel activity compared with the control because the amount of exposed leaf area was increased. Improved grape quality measures and metrics are needed to advance the industry's understanding of crop load, he said, adding that growers need to be able to accu- rately measure yield in real time. Other needed areas of research include a better understanding of wine grape varieties and their quality attributes in response to crop load, the relationship between the total leaf area exposed to sunlight and the vine's response to crop load, and a better understanding of carbon partitioning in the berry. • NEW APPLE DRAINAGE TRAYS . . . Patented Design with built-in channels Premium Protection & Superior Delivery of your fruit to all locations. ull Line of Apple Tray Sizes es the use of laayer pads. s will now provide Contact your DOLCO PACKAGING or HR SPINNER CORP. Sales Representative for more details. Drainage Channel 800 Drainage Outlet www.goodfruit.com GOOD FRUIT GROWER AUGUST 2012 53