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6 2 V I N E YA R D & W I N E RY M A N A G E M E N T | M a r - A p r 2 015 w w w. v w m m e d i a . c o m nematode infection. The drought resistance of these rootstocks is under evaluation. They are current- ly available at some nurseries. capacity for superior drought resis- tance. Similarly, if roots develop poorly because of salinity, it makes it harder for them to take available water from deeper soil." Growers in drought-susceptible areas of California, especially those growing on shallow and/or sandy soils, would likely benefit from the use of a more drought-resistant rootstock. "The rootstocks 110R and 1103P are currently in widespread use to this end," Fort said, "but other fac- tors, for example nematodes, must be considered. The rootstock that best fits a given site must be deter- mined based on multiple factors: the agricultural history of the site, the soil depth and texture, and cur- rent incidence and types of nema- todes from soil sampling." Fort reported that the relative- ly new GRN series of rootstocks ( G R N - 1 t h r o u g h G R N - 5 ) h a v e proved to be more resistant to The lab has also identified six novel rootstocks that may have superior salt tolerance compared to 140Ru, currently the best-doc- By the time leaf symptoms such as "salt burn" are observed, soil salinity is often at seri- ous levels that can negatively impact vine growth and production. Photo: Kevin Fort WASCO 661-758-4777 PASO ROBLES 805-237-8914 MODESTO 209-523-8036 SANTA ROSA 707-542-5510 Serving the Wine, Table Grape and Raisin Industries Great ideas are only as good as their execution. And Vintage Nurseries innovation has proven itself, over and over again. We listened to our growers who we consider our partners, and responded by doubling our mist propagation system, quadrupling our lighthouse capacity, and installing a new water reclamation system and higher volume shadehouse structure. As always, Vintage also continues to lead the way in technology that combats industry-wide pests and pathogens. Our goal is to keep striving to provide optimum growing conditions and superior quality products for our growing partners. at comes through innovation, day after day. It's what we do best, and it's just the beginning for many more exciting innovations to come. www.VintageNurseries.com | 800-499-9019 | Bold Innovation. Vintage Quality NEW SHADEHOUSE FACILITIES UPDATED GREENHOUSE FACILITIES EXPANDED LIGHTHOUSE CAPACITY NEW MIST PROPAGATION FACILITY WATER RECLAMATION SYSTEM