Physiological Changes in Rooting Zone of Dwarf Apple Rootstocks (Malus domestica Borkh.) after Stem Etiolation Treatment
2007
Kwon, S.I. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea) | Kim, M.J. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea) | Paek, P.N. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea) | Nam, J.C. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea) | Kang, I.K. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea)
This work was conducted to investigate the important rooting factors through comparative analysis of a physiological differentiation after layering treatment using four apple rootstocks of different rooting abilities; M.26, M.9, O.3, and Mo.84. Mo.84 showed the highest rooting rate in from rootstocks, while O.3 was the lowest. Mo.84 also found to have the highest indole-3-acetic acid (IAA) content, although the fluctuation of IAA contents was not consistent with layering treatment. In contrast, abscisic acid (ABA) content of Mo.84 which showed highest rooting was lowest among rootstocks regardless of layering treatment.
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