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Pakistan Journal of Biological Sciences
  Year: 2005 | Volume: 8 | Issue: 2 | Page No.: 273-277
DOI: 10.3923/pjbs.2005.273.277
 
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Effects of Gibberellic Acid (GA3) and Indole-3-acedic Acid (IAA) on Flowering, Stalk Elongation and Bulb Characteristics of Tulip (Tulipa gesneriana Var. Cassini)

Ertan Sait Kurtar and Ali Kemal Ayan

Abstract:
This study was carried out to determination of GA3 (Gibberellic acid) and IAA (Indole-3-Acetic Acid) on flower and bulb yield of tulip (Tulipa gesneriana Var. Cassini). 50 (G1), 100 (G2), 250 (G3) and 500 (G4) ppm concentrations of Gibberellic Acid (GA3) and 500 (A1), 1000 (A2), 2500 (A3) and 5000 (A4) ppm concentrations of Indole-3-Acidic Acid (IAA) were applied. According to the results G3 gave highest number of earlier flower (9.10 flower m-2), but lowest number of earlier flower obtained from A4 (5.56 flower m-2). The bulb yield and bulb weight were highest on A4 (671.7 g m-2 and 6.25 g) and G3 caused reduction on bulb yield and bulb weight (494.2 g m-2 and 4.99 g). These results clearly indicated that GA3 application stimulated flowering. But high dose of IAA application was detrimental, on the contrary bulb yield and individual bulb weight were increased. Stalk elongation was not affected significantly by GA3 and IAA applications.
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How to cite this article:

Ertan Sait Kurtar and Ali Kemal Ayan , 2005. Effects of Gibberellic Acid (GA3) and Indole-3-acedic Acid (IAA) on Flowering, Stalk Elongation and Bulb Characteristics of Tulip (Tulipa gesneriana Var. Cassini). Pakistan Journal of Biological Sciences, 8: 273-277.

DOI: 10.3923/pjbs.2005.273.277

URL: https://scialert.net/abstract/?doi=pjbs.2005.273.277

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