ISHS Acta Horticulturae 689: VII International Symposium on Grapevine Physiology and Biotechnology
EFFECT OF IRRIGATION ON VEGETATIVE AND REPRODUCTIVE BEHAVIOR OF ´SAUVIGNON BLANC´ IN ITALY |
| Authors: | P. Storchi, F. Giorgessi, P. Valentini, L. Tarricone, F. Bonello, P. Tamborra |
| Keywords: | environment, stem water potential, grape quality, aroma compounds |
| Abstract:
Vegetative and reproductive growth and fruit characteristics of ‘Sauvignon blanc’ were measured at three locations in Italy (North, Central and South Italy) with different water regimes, under irrigation and without irrigation. Soil water content, air temperature and precipitation were monitored in 2003. Stem water potential was measured once a week from anthesis to harvest. Cluster number and weight per vine were measured at harvest. Total acidity, pH, soluble solids and aroma contents were determined on the must. There were clear differences among locations and irrigation treatments on must quality. The results indicate the importance of judicious irrigation for preserving ‘Sauvignon blanc’ grape quality, particularly at locations subjected to soil water deficits combined with high temperature. | |
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