Effect of growth promoters and fertilizers on growth and yield of patchouli (Pogostemon cablin benth) under asana [Bridelia retusa (l) a juss]-based agroforestry system

An experiment was conducted at the research farm of AICRP on Agroforestry, Dr Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Maharashtra during 2021-22 to study the effect of growth promoters and fertilizers on growth and yield of patchouli under Asana [Bridelia retusa (L) A Juss]-based agroforestry system. Significantly maximum plant height of patchouli (65.53 cm) was observed in T₇ (IBA @ 1,500 ppm + GA₃ @ 1,500 ppm + Azotobacter @ 15 kg/ha) followed by T₆ (GA₃ @ 1,500 ppm + Azotoacter @ 15 kg/ha) (62.40 cm) and T₅ (IBA @ 1,500 ppm +Azotobacter @ 15 kg/ha) (59.83 cm). Maximum number of branches/plant (6.53, 6.47 and 6.40) was observed in T₇, T₆ and T₅ respectively, which were found to be at par. Maximum number of leaves/plant (57.10) and collar diameter (13.37 mm) were observed in T₇. Significantly maximum fresh foliage yield (25.79 and 22.96 q/ha) was recorded in T₇ and T₆ respectively. Dry foliage yield was highest in T₇ (10.02 q/ha) and T₆ (9.59 q/ha) and T₃ (GA₃ @ 1,500 ppm) (8.66 q/ha), the three being at par.