Karafan Journal

Karafan Journal

Enhancing Seed Germination Traits of Stevia rebaudiana Bertoni under Dry Stress width Seed Priming

Document Type : Original Article

Authors
1 Department of Horticultural, Damghan Branch, Islamic Azad University, Damghan, Iran
2 Department of Horticulture, Faculty off Agriculture, Ferdowsi University of Mashhad
3 Agriculture, Production and Technology of Herbal Medicines Research Center, Damghan Branch, Islamic Azad University, Damghan
Abstract
Seed priming is an important modern technology that improves fast and uniform emergence, high vigor, and better plant yields. This study aims to determine the effect of seed priming on seed germination traits of stevia (Indian genotype) under drought stress in 2023. In this study, stevia seeds (Indian genotype) were investigated under priming treatments (no priming (control), hydropriming, selenite, selenate, and furchlorphenorone) and, drought stress levels (0, -2.5, -5, and -10 bar using polyethylene glycol 6000) as a factorial experiment based on a completely randomized design with three replications. The results showed that germination percentage and rate, the mean time required for germination, and the average daily germination, germination uniformity, seedling length, and seedling vigor length index of control treatments were significantly different under drought stress. Under the influence of drought stress levels, germination parameters including germination percentage, rate, and value of germination, seedling length, and seedling vigor length index were reduced, and applying seed priming to some extent reduced the severity of drought stress on the studied characteristics of Stevia under drought stress conditions. In general, neutropriming and hydropriming can serve as effective methods to improve seed germination.
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Volume 21, Issue 4
Agriculture / Art and Architecture
Winter 2025

  • Receive Date 14 October 2024
  • Revise Date 20 November 2024
  • Accept Date 09 December 2024