Vol. 6, Issue 3 (2018)
Effect of different concentrations of indole-3-butyric acid (IBA) on rooting of rosemary (Rosmarinus officinalis) under mist house environment
Author(s): Venugopal CK, Raviprasad Sajjan M, Yashaswini Sharma and Yashavantakumar KH
Abstract: The investigation was carried out in Medicinal and Aromatic Plants Unit, Saidapur farm, Department of Horticulture, University of Agricultural Sciences, Dharwad, Karnataka to study the effect of different concentrations of Indole-3-butyric acid (IBA) on rooting of rosemary (Rosmarinus officinalis) under mist house environment during the year 2015-16 and 2016-17. Two types of cuttings (Tip cutting and Median cutting) were treated with different concentrations of Indole-3-butyric acid (IBA) (250, 500, 750 and 1000 ppm) by quick dip method. The cuttings treated with IBA were planted in polybags (containing red soil and FYM in equal proportion) and placed under mist house environment. There were 12 treatment combinations viz., T1- Tip cutting + water dipping (open), T2- Tip cutting + water dipping, T3- Tip cutting + IBA 250 ppm, T4- Tip cutting + IBA 500 ppm, T5- Tip cutting + IBA 750 ppm, T6- Tip cutting + IBA 1000 ppm, T7- Median cutting + water dipping (open), T8- Median cutting + water dipping, T9- Median cutting + IBA 250 ppm, T10- Median cutting + IBA 500 ppm, T11- Median cutting + IBA 750 ppm, T12- Median cutting + IBA 1000 ppm. Each treatment was represented by 100 cuttings replicated thrice. The experiment was laid out in two factorial randomised block design. It was observed that the rooting response of rosemary varied with type of cuttings and different concentrations of Indole-3-butyric acid (IBA). Highest number of roots (41.83), length of longest root (19.76 cm) and per cent rooting (98.78 %) were recorded under tip cuttings treated with IBA 500 ppm followed by tip cuttings treated with IBA 750 and 1000 ppm which was placed under mist house environment. Hence, Indole-3-butyric acid (IBA) 500 ppm was found to be the best for mass multiplication of this plant under mist chamber condition
Pages: 1524-1526 | 603 Views 163 Downloads
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How to cite this article:
Venugopal CK, Raviprasad Sajjan M, Yashaswini Sharma, Yashavantakumar KH. Effect of different concentrations of indole-3-butyric acid (IBA) on rooting of rosemary (Rosmarinus officinalis) under mist house environment. Int J Chem Stud 2018;6(3):1524-1526.
