Non-Thermal Plasma Treatment Improves Properties of Dormant Seeds of Black Locust (Robinia pseudoacacia L.)

This article deals with the breaking down of seed dormancy in black locust (Robinia pseudoacacia L.) seeds. These seeds have a hard testa that is impermeable to water and air. In this investigation, seeds of black locust were treated with non-thermal plasma (NTP) for 0, 5, 10, and 20 min. The testa...

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Bibliographic Details
Published in:Forests 2023-03, Vol.14 (3), p.471
Main Authors: Šerá, Božena, Jirešová, Jana, Scholtz, Vladimír, Julák, Jaroslav, Khun, Josef
Format: Article
Language:English
Subjects:
Black locust
Change detection
cold plasma
Contact angle
Disinfection & disinfectants
Dormancy
Dormancy (Biology)
Electrodes
Energy consumption
Environmental aspects
Forestry research
Germination
hard seed
Heat treatment
Oxygen content
Pathogens
physical dormancy
Physiological aspects
Physiology
Plant growth
Plasma
Power supply
Robinia pseudoacacia
Seed germination
seedling
Seedlings
Seeds
Thermal plasmas
Trees
Water absorption
Water uptake
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Summary:This article deals with the breaking down of seed dormancy in black locust (Robinia pseudoacacia L.) seeds. These seeds have a hard testa that is impermeable to water and air. In this investigation, seeds of black locust were treated with non-thermal plasma (NTP) for 0, 5, 10, and 20 min. The testa of the treated seeds had an eroded surface (SEM analysis) and showed an increased oxygen content (EDS) and increased hydrophilicity (contact-angle measurement). The exposed seeds also had a higher water absorption (seed water uptake) than the untreated ones. In seeds treated for 20 min, a significant difference (p < 0.05) was recorded in seed germination (eight times greater than the control set) and in other parameters of initial seedling development, such as the fresh weight of both seedling root and shoot and all three indexes of seedling vitality. The detected changes in the seed surface and changes in germination proved that NTP can partly break dormancy in black-locust seeds.
ISSN:1999-4907
1999-4907
DOI:10.3390/f14030471