The Effect of Different Plant Growth Hormones and Concentrations on the Reproduction of Rosmarinus officinalis L. with Seedling Production

To evaluate the proper concentration of plant growth hormone and the suitable plant growth hormone in Rosmarinus officinalis L., a significant fragrant, medicinal and herbaceous plant, the study was carried out in a greenhouse during the vegetative period of 2022. In the experiment, peat and vermicompost mixture (3 peat / 1 vermicompost) as the rooting medium, Indole-3-acetic acid (IAA), Indole-3-butyric acid (IBA) and 1-Naphthaleneacetic acid (NAA) hormones were used as plant growth regulators and the concentrations of these hormones were 0, 1000, 2000, 3000, 4000 ppm The Randomised Plot Experiment Design were established three times in the Multiple Comparison Test “LSD”. In seedlings removed three months after planting, properties such as seedling height (cm), number of roots (pieces), root length (cm), maximum root length (cm), number of laterals (pieces) and lateral length (cm) were examined. The highest seedling length (19.88 cm) and number of shoots (12.60 pcs), 3000 ppm concentration of Indole-3-acetic acid (IAA), root length (16.30 cm), and 3000 ppm concentration of 1-Naphthaleneacetic acid (NAA) at the highest root length (22.82 cm) came to the fore. In terms of root number, the values found at 3000 ppm concentration of indole acetic acid (19.25 pieces) and naphthalene acetic acid (20.09 pcs) were combined into one statistical group and made up the maximum number of roots. The lateral length control seedlings statistically prevented other applications and produced the highest lateral length (1.99 cm). Therefore, it can be said that Indole-3-acetic acid (IAA) and 1-Naphthaleneacetic acid (NAA), both of which have a concentration of 3000 ppm, are the most suited growth hormones.

Keywords:

Growth hormones Rosmarinus officinalis L., Vegetative reproduction,

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