. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. Thb Bulletin 19 Grape vines should be pnined in the fall or early winter, because there is danger of loss of sap if the vines are pruned late in the winter or just before sap begins to rise. There are two general systems of training grape vines, the upright and the drooping systems. The drooping or Kniffin System is prob- ably best for conditions in North Carolina. This system consists in training the vine to a main stem with four arms on two wires, the lower wire 3 feet from ground and the upper one
. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. Thb Bulletin 19 Grape vines should be pnined in the fall or early winter, because there is danger of loss of sap if the vines are pruned late in the winter or just before sap begins to rise. There are two general systems of training grape vines, the upright and the drooping systems. The drooping or Kniffin System is prob- ably best for conditions in North Carolina. This system consists in training the vine to a main stem with four arms on two wires, the lower wire 3 feet from ground and the upper one 2Y2 f<^et above the lower. The fruit is borne on shoots produced on canes coming from two-year-old £i « U^aTe/' 3/}rou^ Fig. 14.—Grape vine. First season's growth after planting. Main stem with four arms in form of water sprouts, trained to two wires. In fall or winter prune the sprouts to spurs of two nodes long as indicated by dotted lines. Pruning the First Year After Planting. The grape vine ought to produce a main stem and four arms in the form of water sprouts the first season. These sprouts are cut back to short spurs two joints or nodes in length. If more than four sprouts are produced, they should be cut off close to the main stem, leaving only four close to the wires. (See Fig. 14.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original North Carolina. Dept. of Agriculture. Raleigh : State Board of Agriculture
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