Author(s):

Imtijungla Jamir, PW Ramteke, Vijay Bahadur and PK Shukla

Abstract: The present experiment was conducted to determine the influence of photosynthetic bacteria and biochar on growth, yield and biochemical parameters of broccoli (Brassica oleracea var. italica) in the Department of Horticulture, Allahabad School of Agriculture, SHUATS, Allahabad (U.P) during the year 2017-2018. Ten treatments were included in the trial were viz; T₀ Control, T₁ (PSB 50L/ha + Biochar 20t/ha), T₂ (PSB 100L/ha + Biochar 30t/ha), T₃ (PSB 150L/ha + Biochar 50t/ha), T₄ (PSB 50L/ha + Biochar 30t/ha), T₅ (PSB 100L/ha + Biochar 50t/ha), T₆ (PSB 150L/ha + Biochar 20t/ha), T₇ (PSB 50L/ha +Biochar 50t/ha), T₈ (PSB 100L/ha + Biochar 20t/ha), T₉ (PSB 150L/ha+ Biochar 30t/ha) and were tested in three replications. The experiment was laid out in simple R.B.D. Studies showed that, significant effect on the height of plant 90 DAT (65.83 cm), number of leaves 90 DAT (32.47), days to first visible curd (71.07 days), leaf area 90 DAT (588.09 cm²), leaf width 90DAT (20.42 cm), fresh weight of plant (995.75 g), fresh root weight of plant (105.5 g), dry weight of plant (193.6 g), dry root weight (39.47 g), head yield per plot (4.49 kg), bud or head weight (499.37 g), bud or head diameter (16.55 cm), head yield per hectare (14.98 t/ha), chlorophyll ‘a’ (1.74 mg/g/Fr.wt.), chlorophyll ‘b’ (1.59 mg/g/Fr.wt.), total chlorophyll (3.59 mg/g/Fr.wt.), total carotenoid (1.12 mg/g/Fr.wt.), leaf proline content (0.011 mg/g/Fr.wt.), vitamin C (mg/100g broccoli fresh head) (91.55 mg), gross return (Rs 374,500/ha), net return (Rs.260,050/ha), Benefit Cost ratio (3.27:1) was observed maximum in treatment T₂ (PSB 100L/ha + Biochar 30t/ha).

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