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Asian Journal of Plant Sciences

Year: 2008 | Volume: 7 | Issue: 3 | Page No.: 319-322
DOI: 10.3923/ajps.2008.319.322
The Seasonal Changes in Endogenous Levels of Indole-3-Acetic Acid, Gibberellic Acid, Zeatin and Abscisic Acid in Stems of Some Apple Varieties (Malus sylvestris Miller)
Aysel Sivaci and Ibrahim Yalcin

Abstract: Seasonal changes of total indole-3-acetic acid (IAA), gibberellic acid (GA3), zeatin and abscisic acid (ABA) levels were investigated in stem cuttings of apple (Malus sylvestris Miller) varieties, Golden delicious, Starkrimson delicious and Misket delicious` at different times of the year. All of the apple varieties exhibited seasonal differences in hormone levels. The total IAA, GA3 andzeatin contents of these apple varieties increased to the highest value in May but it was the lowest in February. Whereas ABA levels observed in May were lower in the studied apple varieties, but it was the highest level in February. Except for ABA other hormones, IAA, GA3 and zeatin levels, were the lowest in ‘Misket delicious’ among the all apple varieties in all sampling periods (August-May).

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How to cite this article
Aysel Sivaci and Ibrahim Yalcin, 2008. The Seasonal Changes in Endogenous Levels of Indole-3-Acetic Acid, Gibberellic Acid, Zeatin and Abscisic Acid in Stems of Some Apple Varieties (Malus sylvestris Miller). Asian Journal of Plant Sciences, 7: 319-322.

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