Effects of Seven Rootstocks on Growth, Yield and Quality of Crimson Seedless Grapes
[Objective] In order to provide scientific evidences for selecting fine rootstock by exploring the effects of rootstocks on growth,yield and quality of Crimson Seedless grapes.[Method] Taking seven different grape rootstocks grafted on 3 years of Crimson Seedless as the research objects,through investigating different anvil ear combination growth,seeding,mature period and yield situation to measure such indexes as the fruit color,the grain weight,the soluble solids,pH value,the titratable acid qualities indexes.[Result]The results showed that the growth,yield and fruit qualities of Crimson seedless by rootstocks grafting were significandy or extremely significantly higher than those of the self-rooted.Different rootstocks grafted on growth,mature period and yield of Crimson Seedless had different influences.Among them,110R and SO4 were more conducive to the growth of Crimson seedless grape branches;110R,101-14MG and SO4 could greatly increase the yield of Crimson seedless grapes,101-14MG and SO4 root stock grafting could promote the early maturity of Crimson seedless,making the fruit mature 16 days earlier.Different rootstocks have different effects on the fruit quality of Crimson seedless,among which,the fruit grain weight of SO4 was the largest,and the fruit coloring was the best.The highest of soluble solid content was 101-14 MG grafting,the highest pH value and titratable acid content respectively were 5BB and Bata grafting,and the highest of TSS-acid ratio was SO4 grafting.[Conclusion] As for the rootstock grafting,SO4 has many merits,which are early maturity,high yield,good color,high soluble solids content in Crimson seedless grapes.It is the best suitable variety in seven varieties of rootstock.