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KMID : 0903619850260040313
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Journal of the Korean Society for Horticultural Science
1985 Volume.26 No. 4 p.313 ~ p.317
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In vitro Propagation of Apple Tree
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Fordham, Ingrid
Zimmerman, Richard, H .
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Abstract
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The shoots of four apple cultivars, Starkspur Red Delicious, Golden Delicious, Gala, and MAC-9 were proliferated in vitro and transplanted in the half strength Murashige and Skoog(MS) agar medium containing five different types of auxins; indoleacetic acid(IAA), indolebutyric acid(IBA), and several bound auxins such as indoleacetylphenylalanine(IAA-phen.), indoleacetylalanine(IAAalan.) and indoleacetylglycine(IAA-glyc.).
The effect of auxins on rooting of apple shoots was different depending on cultivars and concentrations of auxins. At the concentrations of 0.3㎎/ℓ and 0.6㎎/ℓ of IAA were the most effective in MAC-9 and Starkspur Red Delicious, respectively, while in Golden Delicious, 0.3㎎/ℓ of IBA has a similar favorable effect as 0.3 and 0.6㎎/ℓ of IAA. All IAA-amino acids at concentrations of 0.6 and 1.2㎎/ℓ showed the least effect on rooting of Starkspur Red Delicious and Golden Delicious, but IAA-amino acids showed excellent effect similar to IAA on Gala cultivar. Especially, shoots of Gala treated with IAA-phenylalanine had the greatest number of roots, one and two weeks after transplanting in the rooting medium.
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