Vol. 10, Issue 5 (2021)

Author(s):
Manuj Awasthi, Sunil Malik, Mukesh Kumar, Manoj Kumar Singh, Ashok Kumar and Ravindra Kumar

Abstract:
An experiment was conducted at the Horticultural Research Centre and Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture and Technology, Modipuram, Meerut, Uttar Pradesh, India during the rainy season of the year 2019-20 to assessment of different IBA concentrations, rooting media and time for rooting behavior of air layered Guava (Psidium guajava L.) cv. Shweta. Experimental laid out in Factorial Randomized Block Design having fifty treatment combinations of IBA concentrations (control, 6000 ppm, 7000 ppm, 8000 ppm, and 9000 ppm), rooting media (Sphagnum moss, cocopeat, soil, Sphagnum moss + cocopeat and Sphagnum moss + cocopeat + soil) and time of layering (July and August). The treatments replicated thrice. The response of Shweta cultivar of guava to the treatments was evaluated on the basis of rooting attributes those are best under C₄T₄T₂ treatment i.e., minimum days taken root appearance (27.41 days), maximum rooting (100%), maximum number of primary (15.57) and secondary roots (25.87) per layers, maximum length of primary (11.18 cm) and secondary roots (6.43 cm), maximum diameter of primary (4.06 mm) and secondary roots (1.789 mm) per layers. On the basis of results obtained present investigations, it can be concluded that air layering treated with 9000 ppm IBA, use of Sphagnum moss+ cocopeat as a rooting media and time of performed air layering during August month have been found significantly superior on all other treatments.