No. 1 (2001)
Articles

Cytokinin and auxin levels in micropropagating Red Fuji and McIntosh apple varieties

Published May 27, 2001
Katalin Magyarné Tábori
Debreceni Egyetem Kutató Központ, Nyíregyháza
Judit Dobránszki
Debreceni Egyetem Kutató Központ, Nyíregyháza
Antal Ferenczy
Szent István Egyetem, Kertészettudományi Kar, Matematika és Informatika Tanszék, Budapest
Erzsébet Jámborné Benczúr
Szent István Egyetem Kertészettudományi Kar, Dísznövénytermesztési és Dendrológiai Tanszék, Budapest
János Lazányi
Debreceni Egyetem Kutató Központ, Nyíregyháza
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APA

Magyarné Tábori, K., Dobránszki, J., Ferenczy, A., Jámborné Benczúr, E., & Lazányi, J. (2001). Cytokinin and auxin levels in micropropagating Red Fuji and McIntosh apple varieties. Acta Agraria Debreceniensis, (1), 53-59. https://doi.org/10.34101/actaagrar/1/3586

Effects of media hormone content on in vitro shoot multiplication and rooting were examined in cv. Red Fuji and McIntosh apple scions. Multiplication responses of shoots to different concentrations (0.5 and 1.0 mg/l) of 6-benzylaminopurine and 6-benzylaminopurine riboside were tested at two levels (0.1 and 0.3 mg/l) of indole-3-butyric acid. The best proliferation rate was achieved on medium containing 1.0 mg/l 6-benzylaminopurine and 0.1 mg/l indole-3-butyric acid in cv. Red Fuji (5.3) and on medium containing 1.0 mg/l 6-benzylaminopurine and 0.3 mg/l
indole-3-butyric acid in cv McIntosh (10.3). The length of shoots on these media was enough for rooting (38.4 mm in cv. Red Fuji and 39.3 mm in cv McIntosh). Shoots developed on the best proliferation medium were used for rooting. Effects of different concentrations of auxin in the root induction media and presence of activated charcoal in the root elongation media were examined on rooting capacity. The best rooting rate (100% in cv. McIntosh and 83% in cv. Red Fuji) was achieved when the root induction medium contained 1.0 mg/l indole-3-butyric acid. In general, rooting was inhibited in the presence of activated charcoal.  Because of high in vitro multiplication and rooting rate and high percent of survival during acclimatisation, the methods described here make effective micropropagation processes possible for cv. Red Fuji and McIntosh. 

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