Hemp Seed Priming via Different Agents to Alleviate Temperature Stress

Hemp (Cannabis sativa L.) seeds were treated with different priming agents (water, -0.8 MPa PEG 6000, 50 mMol thiamine and 10 mMol mannitol) and subjected to different temperatures (10, 15, 20, 25 and 30 °C). The impacts of low and high temperature on germination and initial growth, along with optim...

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Main Authors: Sibel Day, Burak Önol, Nilüfer Koçak
Format: Article
Language:English
Published: Faculty of Agriculture, Ankara University 2024-07-01
Series:Journal of Agricultural Sciences
Subjects:
Online Access:https://dergipark.org.tr/en/download/article-file/3539150
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author Sibel Day
Burak Önol
Nilüfer Koçak
author_facet Sibel Day
Burak Önol
Nilüfer Koçak
author_sort Sibel Day
collection DOAJ
description Hemp (Cannabis sativa L.) seeds were treated with different priming agents (water, -0.8 MPa PEG 6000, 50 mMol thiamine and 10 mMol mannitol) and subjected to different temperatures (10, 15, 20, 25 and 30 °C). The impacts of low and high temperature on germination and initial growth, along with optimal conditions, were evaluated with priming agents. Results revealed that seed treatment accelerated mean germination time and increased emergence percentage at lower temperatures. The minimum mean germination times of 1.38 and 1.39 days were obtained at 20 °C with hydro priming and mannitol priming. The maximum germination percentages of 89.5 and 90% were observed with mannitol and hydro priming at 20 °C. Retarded seedling emergence was noted at 10 °C. Minimum emergence percentage at 10 °C was 46% in control samples. Seed pre-treatments also promoted shoot length at all temperatures. However, root length promoting effects of seed treatments were more evident at 10, 15 and 20 °C. The minimum root length was 3.04 cm in controls at 30 °C. Seedling fresh and dry weight reached maximum values at 20 °C with water, thiamine and mannitol treatments. Chlorophyll and leaf proline content reached their highest values at 20, 25 and 30 °C. Overcoming temperature stress and promoting germination is important for hemp development. It was concluded that hemp seeds primed with water, thiamine, and mannitol had the highest biomass values for low, optimum, and high temperatures in this study. This indicates that these seed treatments are suitable for hemp plants that could experience low or high temperatures during germination and early growth stages.
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publishDate 2024-07-01
publisher Faculty of Agriculture, Ankara University
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spelling doaj-art-a9c88baf6b0b4fb29547e9180870be962024-11-23T17:34:54ZengFaculty of Agriculture, Ankara UniversityJournal of Agricultural Sciences1300-75802024-07-0130356256910.15832/ankutbd.139119445Hemp Seed Priming via Different Agents to Alleviate Temperature StressSibel Day0https://orcid.org/0000-0003-4955-7291Burak Önol1https://orcid.org/0000-0003-3114-558XNilüfer Koçak2https://orcid.org/0000-0001-6474-1527ANKARA UNIVERSITY, FACULTY OF AGRICULTUREANKARA UNIVERSITY, FACULTY OF AGRICULTUREANKARA UNIVERSITY, FACULTY OF AGRICULTUREHemp (Cannabis sativa L.) seeds were treated with different priming agents (water, -0.8 MPa PEG 6000, 50 mMol thiamine and 10 mMol mannitol) and subjected to different temperatures (10, 15, 20, 25 and 30 °C). The impacts of low and high temperature on germination and initial growth, along with optimal conditions, were evaluated with priming agents. Results revealed that seed treatment accelerated mean germination time and increased emergence percentage at lower temperatures. The minimum mean germination times of 1.38 and 1.39 days were obtained at 20 °C with hydro priming and mannitol priming. The maximum germination percentages of 89.5 and 90% were observed with mannitol and hydro priming at 20 °C. Retarded seedling emergence was noted at 10 °C. Minimum emergence percentage at 10 °C was 46% in control samples. Seed pre-treatments also promoted shoot length at all temperatures. However, root length promoting effects of seed treatments were more evident at 10, 15 and 20 °C. The minimum root length was 3.04 cm in controls at 30 °C. Seedling fresh and dry weight reached maximum values at 20 °C with water, thiamine and mannitol treatments. Chlorophyll and leaf proline content reached their highest values at 20, 25 and 30 °C. Overcoming temperature stress and promoting germination is important for hemp development. It was concluded that hemp seeds primed with water, thiamine, and mannitol had the highest biomass values for low, optimum, and high temperatures in this study. This indicates that these seed treatments are suitable for hemp plants that could experience low or high temperatures during germination and early growth stages.https://dergipark.org.tr/en/download/article-file/3539150cannabis sativahydroprimingmannitolosmoprimingthiamine
spellingShingle Sibel Day
Burak Önol
Nilüfer Koçak
Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
Journal of Agricultural Sciences
cannabis sativa
hydropriming
mannitol
osmopriming
thiamine
title Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
title_full Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
title_fullStr Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
title_full_unstemmed Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
title_short Hemp Seed Priming via Different Agents to Alleviate Temperature Stress
title_sort hemp seed priming via different agents to alleviate temperature stress
topic cannabis sativa
hydropriming
mannitol
osmopriming
thiamine
url https://dergipark.org.tr/en/download/article-file/3539150
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AT burakonol hempseedprimingviadifferentagentstoalleviatetemperaturestress
AT niluferkocak hempseedprimingviadifferentagentstoalleviatetemperaturestress