Effects of Rootstock on Growth Indices and Echo Physiological Parameters of Scion Pomegranate

Abstract

There are inadequate formations on the effects of rootstock on scion of pomegranate. The aim of the study was to determine the effects of three rootstocks; ‘Gorj-e-Dadashi’, ‘Gorj-e-Shahvar’, and ‘Post Ghermaz-e-Aliaghai’ on growth indices and echo physiological parameters of two pomegranate cultivars; ‘Rabab-e-Neyriz’ and ‘Khafr-e-Jahroom’; as scion. The results showed that rootstock type affected on growth and echo physiological parameters so that in ‘Khafr-e-Jahroom’cultivar, the lowest current-year shoot length and diameter of the shoot were obtained with ‘Gorj-e-Dadashi’ rootstock where as in ‘Rabab-e-Neyriz’cultivar it was obtained with ‘Post Ghermaz-e-Aliaghai’. Also, results showed that the highest chlorophyll a concentration, total chlorophyll, shoot diameter and leaf area were obtained when ‘Rabab-e-Neyriz’ grafted on to ‘Gorj-e-Shahvar’. The lowest sucker number, sucker length, sucker fresh, and dry weight were obtained when ‘Rabab-e-Neyriz’cultivar grafted on to ‘Post Ghermaz-e-Aliaghai’. Based on our findings can be postulated that rootstock type had effect on growth parameters of pomegranate scions.