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May 20, 2026BMC Plant BiologyOpen Access

Pre-sowing proline seed priming enhances germination, emergence, and antioxidant capacity of pepper under chilling stress

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AKAygül Karaca

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Overview

Randomized trial demonstrates improved germination in pepper seeds, indicating a potential technique for overcoming chilling stress.

Key Points

  • This study aims to evaluate the effects of pre-sowing proline seed priming on germination and emergence of pepper seeds under chilling stress.
  • Pepper seeds were primed with proline solutions at 0, 5, 10, and 15 mM for 24 hours.
  • Seeds were air-dried for 24 hours and tested under optimal (25 °C) and chilling stress (15 °C) conditions.
  • Germination, emergence traits, and biochemical parameters like TBARS and H₂O₂ content were assessed.
  • Untreated seeds showed significantly reduced germination and emergence under chilling stress.
  • 15 mM proline resulted in the highest germination and emergence percentages at chilling temperatures.
  • Proline-treated seedlings displayed lower TBARS and H₂O₂ levels with enhanced antioxidant enzyme activities.

Cite This Study

Aygül Karaca (2026) studied this question.

synapsesocial.com/papers/6a0d5089f03e14405aa9c60ahttps://doi.org/10.1186/s12870-026-08979-9
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