ROOTSTOCK/SCION COMPATIBILITY IN GRAPEVINE NURSERY PRODUCTION
in HortScienceAll possible grafting combinations of seven roostock s and six scion cultivars were made to evaluate the rootstock/scion compatibility in grapevine nursery production. Percentage of takes was variable from 20.5%(Uni Blanc/161-49 C.) to 87.3%(K 188-2/161-49 C). Among scion cultivars, mean percentage of takes varied from 82.5%(K 188-2) to 37.5%(Ugni Blanc) while roostocks with all scion cultivars varied from 69.9%(R 110) to 52.8%(101-14 Mgt.), indicating the greater effects of scion on percentage of takes. Variation in rooting index(0: none to 4:profuse rooting scale) was from 3.48(SV 5276/Rip. Gloire). 3.49(Neo Muscat/101-14 Mgt.) to 1.63(SV 5276/161-49 C). Mean rooting index of rootstocks with all scion cultivars varied from 3.10(101-14 Mgt.) to 1.95(161-49 C.) while that of scion cultivars varied from 3.07(SV 5276) to 2.44(Ugni Blanc). In rooted grafting, rootstock had a greater effect than scion cultivars.
