Effects of Temperature at Different Grafting Stages on Bud -Grafting Survival Rate and Annual Growth Increment of Walnut (Juglans regia L.)
Sun Yang
Abstract：The bud grafting of walnut has lower survival rate and is affected largely by temperature.To screen out the suitable bud grafting time has great significance to increase the survival rate of walnut grafted seedlings.In this research,different grafting stages were designed to study their effects on the survival rate and growth increment of grafted seedlings,and also the average temperature in 7 ~10 days after bud grafting. Whether in open field or in protected conditions,the survival rate of grafted seedlings showed the trend of in-creasing firstly and then decreasing with the postponing of grafting time.The average temperature in protected conditions was higher than that in open field,so the survival rate increased obviously.The average height of new shoots and the average diameter of their stem base showed the reducing trends overall.It was concluded that the optimum average temperature for bud grafting of walnut was 23 ~25℃ in Dalian area through compre-hensive analysis.
Keywords：WalnutBud graftingSurvival rateGrowth incrementTemperatureGrafting time
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 52-54 )