Effect of Pruning on Recovery and Productivity of Cold-Injured Merlot Grapevines

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Figure 1
Daily maximum and minimum temperatures for the post-harvest period of Merlot grapevines in the Yakima Valley, Washington, 2002 and 2003.
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Figure 2
Effect of unseasonably low fall temperature (−11.5°C on 31 Oct 2002) on the extent of oxidative browning of the trunk phloem of Merlot grapevines grown in north-south oriented rows down a ~2% slope (vine position refers to the vine number within a row).
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Figure 3
Relationship between the number of buds retained using different pruning strategies and the number of clusters at harvest of cold-injured Merlot grapevines.
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Figure 4
Relationship between the number of shoots per vine and periderm formation (number of brown internodes per shoot) by harvest of cold-injured Merlot grapevines pruned using different strategies.

Table 1
Effect of pruning treatment and time on the number of buds retained after pruning and on yield formation of cold-injured Merlot grapevines.
Table 2
Effect of pruning treatment and time on cluster yield components, fruit composition, and cane maturation (proportion of brown internodes per shoot) of cold-injured Merlot grapevines (2003 season).