Vol. 12, Issue 9 (2023)

Author(s):
Gaurav Goyal and Jujhar Singh

Abstract:
The present research “Effect of biofertilizer on Petunia (Petunia hybrida) var. Red scarlet” was carried out at Experimental Farm, Department of Agriculture, Mata Gujri College, Fatehgarh Sahib, Punjab during winter season of 2022-2023. The experiment was laid out in randomized block design with seven treatments and treatments were replicated thrice, such as (T₁) control, (T₂) Azotobacter (30 g), (T₃) Acetobacter (30 g), (T₄) PSB (30 g), (T₅) Azotobacter (30 g) + Acetobacter (30 g), (T₆) Azotobacter (30 g) + PSB (30 g) and (T₇) Acetobacter (30 g) + PSB (30 g). It can be concluded that application of Acetobacter (30 g) + PSB (30 g). Show positive result on growth and flowering of beded Petunia. Observations were recorded for growth and for flowering parameters. Among all treatments vegetative parameters such as plant height, leaf length, number of leaves per plant were maximum in (T₇) Acetobacter (30 g) + PSB (30 g) at 60 and 90 DAS. Number of leaves per stem is maximum in (Acetobacter 30 g) at 60 and 90 DAS. Stem length is maximum (11.36 cm) in (T₆) at 60 DAS and (26.60 cm) at 90 DAS in (T₇), number of stem per plant is maximum in (T₆) at 60 and 90 DAS. in flowering parameters maximum number of flowers per stem (5.06), no. of flowers per plant (17.71), flower diameter (5.15), days taken to flower opening (92.22) and duration of flowering (52.36) found best in Acetobacter (30 g) + PSB (30 g). Increases plant height (8.62 cm), leaf length (6.21 cm), No. Of leaves per plant (43.16) at (60 Days). Plant height (26.61 cm), Leaf length (6.87 cm), No. Of leaves per plant (87.12), Stem length (26.60), flower opening (92.22 days), no. Of flowers per stem (5.06), no. Of flowers per plant (17.71), flower diameter (5.15 cm) and duration of flowering (52.6 cm) at (90 days) was observed maximum.