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Water uptake mechanism and germination of Erythrina velutina seeds treated with atmospheric plasma

View Article: PubMed Central - PubMed

ABSTRACT

The effect of plasma applied to mulungu (Erythrina velutina) seeds was studied to verify its influence on the germination, water absorption, wettability and structure of the seeds. The plasma jet used in this study was produced by dielectric barrier discharge (DBD) in a helium gas flow of 0.03 L/s at a distance of 13 mm for 60 s. The plasma treatment significantly affected the seed germination rate, which was approximately 5% higher than that of the untreated group. Micropyle and hilum contributed a greater proportion to uptake. When sealed in the hilar or micropyle regions the amount of water absorbed into the seed decreased approximately 75% compared to the unsealed seed. This difference suggests that these two regions together act cooperatively in the water absorption. However, when plasma treated seed was blocked in the micropyle region, water absorption was higher higher than in seeds blocked hilum. This difference suggests that the plasma treatment changed the wettability of the hilum more effectively than it changed the micropyle. These results indicate that plasma can significantly change the hydrophilicity, water absorption and percentage of seed germination in E. velutina.

No MeSH data available.


Wettability test in untreated and plasma-treated Erythrina velutina seeds.
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f2: Wettability test in untreated and plasma-treated Erythrina velutina seeds.

Mentions: The present study, similar to a previous study of radiofrequency cold air plasma treatment14, found that cold plasma treatment significantly decreased the apparent contact angle (Fig. 2).


Water uptake mechanism and germination of Erythrina velutina seeds treated with atmospheric plasma
Wettability test in untreated and plasma-treated Erythrina velutina seeds.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5037400&req=5

f2: Wettability test in untreated and plasma-treated Erythrina velutina seeds.
Mentions: The present study, similar to a previous study of radiofrequency cold air plasma treatment14, found that cold plasma treatment significantly decreased the apparent contact angle (Fig. 2).

View Article: PubMed Central - PubMed

ABSTRACT

The effect of plasma applied to mulungu (Erythrina velutina) seeds was studied to verify its influence on the germination, water absorption, wettability and structure of the seeds. The plasma jet used in this study was produced by dielectric barrier discharge (DBD) in a helium gas flow of 0.03 L/s at a distance of 13 mm for 60 s. The plasma treatment significantly affected the seed germination rate, which was approximately 5% higher than that of the untreated group. Micropyle and hilum contributed a greater proportion to uptake. When sealed in the hilar or micropyle regions the amount of water absorbed into the seed decreased approximately 75% compared to the unsealed seed. This difference suggests that these two regions together act cooperatively in the water absorption. However, when plasma treated seed was blocked in the micropyle region, water absorption was higher higher than in seeds blocked hilum. This difference suggests that the plasma treatment changed the wettability of the hilum more effectively than it changed the micropyle. These results indicate that plasma can significantly change the hydrophilicity, water absorption and percentage of seed germination in E. velutina.

No MeSH data available.