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Cold radiofrequency plasma treatment modifies wettability and germination speed of plant seeds.

Bormashenko E, Grynyov R, Bormashenko Y, Drori E - Sci Rep (2012)

Bottom Line: We report the possibility to modify the wetting properties of the surfaces of a diversity of seeds including: lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum, species C9) by cold radiofrequency air plasma treatment.Air plasma treatment leads to the dramatic decrease in the apparent contact angle.Significant growth of the peaks corresponding to the nitrogen containing groups in the mass spectra of air plasma treated seeds was registered by TOF-SIMS spectroscopy.

View Article: PubMed Central - PubMed

Affiliation: Ariel University Center of Samaria, Physics Faculty, Ariel, Israel. edward@ariel.ac.il

ABSTRACT
We report the possibility to modify the wetting properties of the surfaces of a diversity of seeds including: lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum, species C9) by cold radiofrequency air plasma treatment. Air plasma treatment leads to the dramatic decrease in the apparent contact angle. Moreover, the speed of germination and yield (germination rate) of seeds can be modified by preliminary plasma treatment. The change in the wetting properties of seeds is at least partially due to oxidation of their surface under plasma treatment. Significant growth of the peaks corresponding to the nitrogen containing groups in the mass spectra of air plasma treated seeds was registered by TOF-SIMS spectroscopy.

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Scheme of the plasma treatment of seeds.
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f9: Scheme of the plasma treatment of seeds.

Mentions: Lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum species C9) grains were exposed to inductive air plasma discharge under the following parameters: the plasma frequency was of the order of 10 MHz, the power was 20 W, the pressure was , the volume of the discharge chamber was 45 cm3. The time span of irradiation was varied from 15s to 2 min. The scheme of the experimental unit used for plasma treatment of seeds is depicted in Figure 9. Series of 10 experiments were carried out for all kinds of seeds.


Cold radiofrequency plasma treatment modifies wettability and germination speed of plant seeds.

Bormashenko E, Grynyov R, Bormashenko Y, Drori E - Sci Rep (2012)

Scheme of the plasma treatment of seeds.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3473364&req=5

f9: Scheme of the plasma treatment of seeds.
Mentions: Lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum species C9) grains were exposed to inductive air plasma discharge under the following parameters: the plasma frequency was of the order of 10 MHz, the power was 20 W, the pressure was , the volume of the discharge chamber was 45 cm3. The time span of irradiation was varied from 15s to 2 min. The scheme of the experimental unit used for plasma treatment of seeds is depicted in Figure 9. Series of 10 experiments were carried out for all kinds of seeds.

Bottom Line: We report the possibility to modify the wetting properties of the surfaces of a diversity of seeds including: lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum, species C9) by cold radiofrequency air plasma treatment.Air plasma treatment leads to the dramatic decrease in the apparent contact angle.Significant growth of the peaks corresponding to the nitrogen containing groups in the mass spectra of air plasma treated seeds was registered by TOF-SIMS spectroscopy.

View Article: PubMed Central - PubMed

Affiliation: Ariel University Center of Samaria, Physics Faculty, Ariel, Israel. edward@ariel.ac.il

ABSTRACT
We report the possibility to modify the wetting properties of the surfaces of a diversity of seeds including: lentils (Lens culinaris), beans (Phaseolus vulgaris) and wheat (Triticum, species C9) by cold radiofrequency air plasma treatment. Air plasma treatment leads to the dramatic decrease in the apparent contact angle. Moreover, the speed of germination and yield (germination rate) of seeds can be modified by preliminary plasma treatment. The change in the wetting properties of seeds is at least partially due to oxidation of their surface under plasma treatment. Significant growth of the peaks corresponding to the nitrogen containing groups in the mass spectra of air plasma treated seeds was registered by TOF-SIMS spectroscopy.

Show MeSH
Related in: MedlinePlus