Effect of Gibberellic Acid, Kinetin and Indole 3-Acetic Acid on Seed Germination Performance of Dianthus caryophyllus CarnationReportar como inadecuado




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Agriculturae Conspectus Scientificus, Vol.77 No.3 October 2012. -

The experiment was undertaken with an objective to investigate the effect of various concentrations of plant growth regulators, i.e., Gibberellic acid GA3, Kinetin and Indole 3-acetic acid IAA on seed germination of Dianthus caryophyllus. Dianthus seeds were soaked in different concentrations 0 ppm or control, 10 ppm, 20 ppm, 30 ppm and 40 ppm of each of GA3, Kinetin and IAA for 24 h at room temperature 25±2oC. Three replicates of each treatment with ten seeds per replicate were arranged for precise physiological analysis. Significant variation was found in all aspects after analysis of variance ANOVA of each mean value. After two weeks of seed soaking, it was noted that germination percentages were significantly accelerated by lower concentrations 10 and 20 ppm of used hormones. Amongst the three potential growth regulators, 20 ppm was found most effective because it showed highest germination percentage for GA3 87.46%, Kinetin 78.92% and IAA 75.35%. A great deal of information relating to seed germination practices shows that these plant growth regulators were efficient in overcoming dormancy leading to rapid seed germination. GA3 was selected as best hormone in this study, which showed highest seed germination 87.46%. These results could be useful in large scale cultivation of Dianthus caryophyllus plants to improve its floricultural impact worldwide.

Dianthus caryophyllus; gibberellic acid; indole 3-acetic acid; kinetin; seed germination



Autor: Rajib Roychowdhury - ; Visva-Bharati, Department of Biotechnology, School of Life Sciences Santiniketan - 731235, West Bengal, In

Fuente: http://hrcak.srce.hr/



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