Changes of Root Physiology of Tissue Cultured M.9 Apple Rootstock after Layering
2005
Kwon, S.I. (National Apple Experiment Station, NHRI, RDA, Kunwi, Republic of Korea) | Kim, M.J. (National Horticultural Research Institute, RDA, Suwon, Republic of Korea) | Kang, I.K. (Sangju National University, Sangju, Republic of Korea), E-mail: [email protected]
This work was conducted to evaluate the effects of rooting on tissue cultured M.9 (Malus domestica Bork. cv, tcM.9) after layering in field. We investigated an appearance period of first root in shoot, rooting ratio, contents of indole-3-acetic acid (IAA), abscisic acid (ABA), inorganic matters, sugars, and lignin in rooting areas of stems by layering. First root in shoot of tcM.9 and natural M.9 appeared 25 and 30 days after layering (DAL), respectively. Rooting ratio was much higher in tcM.9 than in natural M.9.
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