Dinesh Chandra Naithani1*, Anant Ram Nautiyal2, Deepak Kumar Rana1 and Deepak Mewar1
1Department of Horticulture, School of Agriculture and Allied Science, H.N.B. Garhwal University (A Central University), Srinagar Garhwal, Uttarakhand, India-246174
2 High Altitude Plant Physiology Research Centre (HAPPRC), School of Agriculture and Allied Science, H.N.B. Garhwal University (A Central University), Srinagar Garhwal,
Uttarakhand, India-246174
Email: naithani.dinesh@yahoo.com
Received-07.01.2018, Revised-25.01.2018
Abstract: The present study were undertaken at the Orchard Section, Horticultural Research Centre and Department of Horticulture, Chauras Campus, School of Agriculture and Allied Science, HNB Garhwal University (A Central University), Srinagar Garhwal, Uttarakhand, India during the rainy season of the year 2016 to study the effect of time of air layering and IBA concentrations on the rooting behaviour of Pant Prabhat Guava (Psidium guajava L.). The experimental findings showed that the minimum days taken to root appearance (28.40days), maximum rooting percentage (92.20%), maximum number of roots per layer (24.80), maximum length of longest root per layer (14.20cm), maximum diameter of thickest root per layer (1.86mm) and maximum percentage of layers showing secondary roots (70.00%) were significantly superior when layering was done on 15th July and treated with 4500 ppm concentration of IBA.
Keywords: IBA, Rooting, Layering, Secondary roots
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