Volume 57 Number 4 Article 30
Year 2003 Month 10
Title: The Effect of Soluble Sugars, Total Flavan and Juglone Concentration in Walnut Scions on Graft Survival
Authors: K. Yildiz, H. Yilmaz and F. Balta
Abstract:
We examined the effects of soluble sugar, juglone and total flavan concentration of scionwood on
graft success in walnut (J. regia L). According to simple regression analysis, graft success was linearly
related to sugar and juglone concentrations, and quadratically related to flavan concentration.
In addition, the best multiple regression model was constructed for graft success according to all possible regression approach.
It was found that the best model included linear terms for flavan and sugar, quadraticterm for flavan and the interaction term for flavan x sugar.
The r square (R2) for this model was 0.72,
meaning that this model explained 72% of variation in graft success.
The residual variation (28%) re
sulted from other factors.
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