Abstract
Prohexadione-calcium (prohexadione-Ca) was evaluated for its ability to suppress vegetative growth of grapevines (Vitis vinifera L.) under field conditions. Two or three applications of 250 mg·L-1 prohexadione-Ca reduced primary shoot growth of 'Cabernet Sauvignon', but had little effect on other canopy characteristics or cane pruning weights. The reduction of shoot growth was not persistent and shoot hedging was ultimately needed to avoid canopy shading. Similarly, three applications of either 125, 250, or 375 mg·L-1 prohexadione-Ca reduced 'Cabernet franc' shoot growth, but again did not eliminate the need for shoot hedging. Cane pruning weights of 'Cabernet franc' were unaffected by treatment, and canopy characteristics were generally not improved. Two prebloom and one postbloom application of 250 mg·L-1 prohexadione-Ca were evaluated on 'Cabernet franc'and 'Chardonnay' in separate field experiments. The prebloom treatments retarded shoot growth of 'Chardonnay', but had no effects on 'Cabernet franc' shoot characteristics. To retard shoot growth, prohexadione-Ca had to be applied prior to bloom; however, prebloom applications had the potential for severe reductions in crop yield.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1435-1438 |
| Number of pages | 4 |
| Journal | HortScience |
| Volume | 38 |
| Issue number | 7 |
| State | Published - Dec 1 2003 |
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All Science Journal Classification (ASJC) codes
- Horticulture
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Vegetative Response of Vitis vinifera to Prohexadione-calcium. / Lo Giudice, Danielle; Wolf, Tony K.; Marini, Richard P.
In: HortScience, Vol. 38, No. 7, 01.12.2003, p. 1435-1438.Research output: Contribution to journal › Article
TY - JOUR
T1 - Vegetative Response of Vitis vinifera to Prohexadione-calcium
AU - Lo Giudice, Danielle
AU - Wolf, Tony K.
AU - Marini, Richard P.
PY - 2003/12/1
Y1 - 2003/12/1
N2 - Prohexadione-calcium (prohexadione-Ca) was evaluated for its ability to suppress vegetative growth of grapevines (Vitis vinifera L.) under field conditions. Two or three applications of 250 mg·L-1 prohexadione-Ca reduced primary shoot growth of 'Cabernet Sauvignon', but had little effect on other canopy characteristics or cane pruning weights. The reduction of shoot growth was not persistent and shoot hedging was ultimately needed to avoid canopy shading. Similarly, three applications of either 125, 250, or 375 mg·L-1 prohexadione-Ca reduced 'Cabernet franc' shoot growth, but again did not eliminate the need for shoot hedging. Cane pruning weights of 'Cabernet franc' were unaffected by treatment, and canopy characteristics were generally not improved. Two prebloom and one postbloom application of 250 mg·L-1 prohexadione-Ca were evaluated on 'Cabernet franc'and 'Chardonnay' in separate field experiments. The prebloom treatments retarded shoot growth of 'Chardonnay', but had no effects on 'Cabernet franc' shoot characteristics. To retard shoot growth, prohexadione-Ca had to be applied prior to bloom; however, prebloom applications had the potential for severe reductions in crop yield.
AB - Prohexadione-calcium (prohexadione-Ca) was evaluated for its ability to suppress vegetative growth of grapevines (Vitis vinifera L.) under field conditions. Two or three applications of 250 mg·L-1 prohexadione-Ca reduced primary shoot growth of 'Cabernet Sauvignon', but had little effect on other canopy characteristics or cane pruning weights. The reduction of shoot growth was not persistent and shoot hedging was ultimately needed to avoid canopy shading. Similarly, three applications of either 125, 250, or 375 mg·L-1 prohexadione-Ca reduced 'Cabernet franc' shoot growth, but again did not eliminate the need for shoot hedging. Cane pruning weights of 'Cabernet franc' were unaffected by treatment, and canopy characteristics were generally not improved. Two prebloom and one postbloom application of 250 mg·L-1 prohexadione-Ca were evaluated on 'Cabernet franc'and 'Chardonnay' in separate field experiments. The prebloom treatments retarded shoot growth of 'Chardonnay', but had no effects on 'Cabernet franc' shoot characteristics. To retard shoot growth, prohexadione-Ca had to be applied prior to bloom; however, prebloom applications had the potential for severe reductions in crop yield.
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UR - http://www.scopus.com/inward/citedby.url?scp=0842280582&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0842280582
VL - 38
SP - 1435
EP - 1438
JO - Hortscience: A Publication of the American Society for Hortcultural Science
JF - Hortscience: A Publication of the American Society for Hortcultural Science
SN - 0018-5345
IS - 7
ER -