Forough Firouzkoohi; Fatemeh Nasibi; Batool Keramat; Hadi Noori; Effat Ahmadi Mousavi
Abstract
Effects of dielectric barrier discharge (DBD) Helium plasma treatments on guar (Cyamopsis tetragonoloba) seed germination and seedling growth were studied. Seeds were pretreated with 0, 1/44 and 0/68 W of cold plasma for 60 s. Salt stress experiment included three salinity levels of NaCl (0, 50 and 100 ...
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Effects of dielectric barrier discharge (DBD) Helium plasma treatments on guar (Cyamopsis tetragonoloba) seed germination and seedling growth were studied. Seeds were pretreated with 0, 1/44 and 0/68 W of cold plasma for 60 s. Salt stress experiment included three salinity levels of NaCl (0, 50 and 100 mM). Results showed that plasma treatments had positive effects on seed germination and seedling (shoot length, root length, dry and fresh weight of shoot and root) , The treatment of 1.44 W of cold plasma had the most stimulating effect on the percentage of germination and growth of guar seedlings. Additionally, the application of Helium plasma treatments, considerably enhanced chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, and potassium(k) content in the leaves of guar plant. Thus, cold plasma treatment can be used an ameliorative way to the enhancement germination and improve seedling growth of guar against damage caused by salt stress. Key words: dielectric barrier discharge, seed germination, guar, cold plasma, salt stress
Khadijeh Sayahi; Amir Hossein Sari; A. Hamidi; Bahareh Nowruzi; Farshid Hassani
Abstract
In order to investigate the effect of cold plasma on seed germination characteristics and seedling growth of soybean commercial cultivars, an experiment in the form of a nest-factorial design with four replications was performed at the Plasma Physics Research Center of Islamic Azad University, Tehran ...
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In order to investigate the effect of cold plasma on seed germination characteristics and seedling growth of soybean commercial cultivars, an experiment in the form of a nest-factorial design with four replications was performed at the Plasma Physics Research Center of Islamic Azad University, Tehran Research Sciences Branch and Seed and Plant Certification and Registration Institute (SPCRI) in 2021. Seeds were exposed to cold plasma for 30, 60, 180, 300 and 420 seconds. In general, germination percentage from 0 to 66.97%, germination rate from 0 to 32.17%, germination index from 3.61 to 60.09%, mean germination time from 4.62 to 66.66%, root length 2.87 to 56.13%, seedling length 2.70 to 78.13%, normal seedling number 0 to 30.26% and seedling dry weight 1.36 to 36.63% increased compared to control treatment. The results of our study showed that 60 seconds treatment had the most positive effect on seed germination characteristics and seedling growth of soybean.
Shabnam Rezaei; Barat Ghobadian; Mohammad-Taghi Ebadi; Hamidreza Ghomi
Abstract
In this research, the effect of cold plasma treatment on the germination characteristics of Camelina sativa, Kelussia odoratissima, and Heracleum persicum seeds were investigated. An experiment based on completely randomized design with in three replications was conducted. The treatments were three cold ...
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In this research, the effect of cold plasma treatment on the germination characteristics of Camelina sativa, Kelussia odoratissima, and Heracleum persicum seeds were investigated. An experiment based on completely randomized design with in three replications was conducted. The treatments were three cold plasma power of 40, 60 and 80 W applied on the seeds for 2 minutes and untreated sample was also evaluated as control treatment. The measured traits were: germination percentage and rate, plumule and radicle length. The results showed that cold plasma treatment had a significant effect on germination percentage, germination rate, and radicle length. The cold plasma at 80 kV and 2 minutes improved the germination percentage with increasing it by 10.6%, increasing germination rate by 2.35%, and 3.6 centimeters in radicle length in compared with the control sample. Based on the results obtained from K. odoratissima and H. persicum seeds, cold plasma couldn’t break the dormancy of these seeds, despite the improved hydrophilicity and disinfection of the seeds.
