Enhancement of Seed Quality Parameters through Different Seed Priming Treatments in Coriander (Coriandrum sativum L.) under Varied Temperature Regimes

Background: Coriander (Coriandrum sativum L.) is an important aromatic spice and herb widely cultivated for its seeds and leaves, with significant production in India. Seed germination and crop establishment can be improved through seed priming and organic invigoration techniques, which enhance vigor, stress tolerance, and reduce dependence on chemical inputs. Aims: The specific goal of the present study was to study the influence of different seed priming treatments on germination and other seed quality parameters under varied temperature regimes Study Design: Completely Randomized Design (Factorial). Place and Duration of Study: Seed Testing Laboratory, Department of Seed Science and Technology, College of Agriculture, Junagadh Agricultural University, Junagadh during the year 2024-25. Experimental Design Germination method: Completely Randomized Design (Factorial) Germination method: Top of Paper. Results: The laboratory experiment was conducted under three temperature regimes viz., T1 (30 ± 1oC), T2 (25 ± 1oC) and T3 (20 ± 1oC). The seed priming treatments were P0 (no priming (control)), P1 (Hydropriming (with water, 14 h), P2 (Plant growth promoting rhizobacteria (10 g/kg, 14 h)), P3 (Trichoderma harzianum (4 %, 14 h)), P4 (Panchgavya (8 %, 14 h)) and P5 (Bijamrut (9 %, 14 h)). The observed results showed that highest germination and other seed quality parameters was obtained with P4 (Panchgavya (8 %, 14 h) seed priming and the lowest was recorded with P0 (no priming (control)). Amongst the varied temperature regimes, T2 (25 ± 1oC) recorded the highest values for seed quality parameters and the lowest was observed for T1 (30 ± 1oC). The interaction effect of the temperature regimes and priming treatments was found to be non-significant, indicating that the there is an independent effect of varied temperature conditions and seed priming treatments. Conclusion: Seed priming with P4 (Panchgavya (8 %, 14 h)) and a temperature of T2 (25 ± 1oC) independently yielded the highest germination and seed quality parameters.