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| I just put down a few bare root grape vines, all American and American hybrid. Should I cut them down to 3 buds now, or I should wait until spring time? Some folks mentioned to keep the canes now to save some food over winter. Also, if I cut off a shoot from a node/bud, would the new bud send out shoot from the same spot? Or the node/bud is already spent and no new shoot comes from the same spot? I'm thinking I should cut off the old growth (part of the original root cutting), leave the strongest new shoot and cut it down to 2-3 buds (new buds). |
Follow-Up Postings:
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- Posted by scottfsmith 6B-7A-MD (My Page) on Tue, Nov 25, 14 at 13:36
| Definitely wait until early spring, grapes can die back over the winter and they seem to dry out from the tips on down. I'm not sure what you are asking about the buds; just leave three of the biggest looking low buds. If they are big it means the plant thinks they are in a good spot. Scott |
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| If you cut off a small shoot from the "trunk", would a bud form from the the place where the shoot is cut? Or the bud was already used to produce the shoot we just cut? |
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- Posted by Fascist_Nation USDA 9b, Sunset 13, (My Page) on Tue, Nov 25, 14 at 15:12
| Buds are already present and easier to spot when the leaves are all gone. You cut about 1/4" above a bud to induce growth next season by hormone traveling up from the roots accumulating around that terminal bud and inducing shoot formation. |
Here is a link that might be useful: Training and Pruning Grapes (PDF)
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| And hormones traveling down from opening winter buds are what cause new roots to come out of cut root ends of transplants in spring. In addition, as alluded to previously energy stored in stems (and roots) over winter is what fuels new growth in spring. So the bigger the top that comes through the winter, the more the plant can grow the following spring. Root loss during bare-rooting (or cutting of roots during balling in burlap) is why top growth of trees and shrubs is stunted the first growing season after transplanting. Plants are integrated systems, just like we are. The more you cut off the less you are left with. When there is vigorous new growth in response to hard pruning the overall volume of new top being added is actually less than it would have been if the plant had not been cut back as much. This has been seen during organized trials where half of a large, ~uniform group of test subjects has been cut back and half has not. |
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