Effect of Different Growing Media, Azotobacter, and GA3 on Growth and Survivability of Transplanted Air Layers in Guava (Psidium guajava L.) C.V. Gwalior-27
The present investigation entitled “Effect of different growing media, Azotobacter and GA3 on growth and survivability of transplanted air layers in Guava (Psidium guajava L.) C.V. Gwalior-27” was conducted at Experimental block, College of Agriculture, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh during the year 2020–2021. The experiment was laid out incompletely randomized design (CRD) with three replications. Among different treatments soil + vermicompost (2:1) + GA3 200 ppm + Azotobacter (0.5ml) resulted in maximum survival percentage of air layers at DAT 135 (87.33%) followed by the treatment with soil + leaf mould (2:1) + GA3 20 ppm + Azotobacter (0.5ml) (77.43%). This treatment also enhanced the growth as well as root parameters of air layers, number of sprouts at 15 DAT (8.67), number of leaves (37.00), stem length (28.33cm), and stem thickness (16.20mm), number of primary roots (10.00), number of secondary roots (21.67), and length of primary roots (11.97cm), length of secondary roots (8.73cm), diameter of primary roots (3.27mm), diameter of secondary roots (2.00mm), fresh weight of primary roots (1.84g), fresh weight of secondary roots (0.79g) at 135 DAT. It may be concluded that soil + vermicompost (2:1) + GA3 200 ppm + Azotobacter (0.5ml) was found best for highest survivability percentage and enhanced root parameters followed by soil + leaf mould (2:1) + GA3 200 ppm + Azotobacter (0.5ml).
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