Vegetative characteristics of Miyagawa Satsuma mandarin on six different rootstocks in East of Mazandaran

Vegetative reactions of six citrus different rootstocks (Swingle citromelo; Troyer citrange; Carizo citrange, C-35; Smooth flat sevill and Gou tou) and their effect on early mature Miyagawa Satsuma mandarin was evaluated during 8 years (2010-2017). Experiment was done in randomized complete block design with 4 replications and 4 trees in each replication. Results showed that after vegetative phase (third year) trees on Gou tou had the least canopy volume and height but in the last three years, trees on C-35 had minimum volume and height. In contrast, trees on Swingle citromelo rootstock had the most canopy volume. The most rootstock trunk cross-sectional area (TCSA) and girth was related to Swingle citromelo and the most mandarin trunk girth and TCSA was on Smooth flat sevill. Results of rootstock and scion affinity showed that in Smooth flat sevill it was more than 1, in citranges it was about 1 and in Swingle and Gou tou it was less than 1. Rootstock TCSA had the most correlation with canopy volume and scion trunk girth had the most correlation with canopy height and width; so these can be used to estimate the canopy volume.