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Pretreatment with H 2 O 2 Alleviates the Negative Impacts of NaCl Stress on Seed Germination of Tartary Buckwheat (Fagopyrum tataricum).
- Source :
- Plants (2223-7747); Sep2021, Vol. 10 Issue 9, p1784-1784, 1p
- Publication Year :
- 2021
-
Abstract
- Soil salinization is one of the main abiotic stress factors impacting the growth of crops and the agricultural industry today. Thus, we aimed to investigate the effects of H<subscript>2</subscript>O<subscript>2</subscript> pretreatment on seed germination in Tartary buckwheat (Fagopyrum tataricum) seeds under salt stress and to evaluate this species' salt tolerance. Through the preliminary experiment, this study used 50 mmol L<superscript>−1</superscript> NaCl solution to induce seed stress. After soaking for 12 h in different H<subscript>2</subscript>O<subscript>2</subscript> concentrations, seeds were laid in Petri dishes with 50 mmol L<superscript>−1</superscript> NaCl for seven days and the germination parameters and physiological indicators were measured to screen the optimal H<subscript>2</subscript>O<subscript>2</subscript> pretreatment concentration and the salt tolerance index. Our results indicated that pretreatment with 5–10 mmol L<superscript>−1</superscript> H<subscript>2</subscript>O<subscript>2</subscript> was most effective in alleviating NaCl's impacts on the seeds' germination parameters. Furthermore, the growth and material accumulation of seedlings was promoted; catalase, superoxide dismutase activity, and proline content were enhanced; and malondialdehyde content was reduced. Principal component analysis and stepwise regression revealed six key indicators that had a significant impact on the salt tolerance characteristics of F. tataricum, namely, germination potential, shoot fresh weight, root surface area, root average diameter, catalase activity, and superoxide dismutase activity. [ABSTRACT FROM AUTHOR]
- Subjects :
- BUCKWHEAT
GERMINATION
SALT
SOIL salinization
CROPS
PRINCIPAL components analysis
Subjects
Details
- Language :
- English
- ISSN :
- 22237747
- Volume :
- 10
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Plants (2223-7747)
- Publication Type :
- Academic Journal
- Accession number :
- 152802859
- Full Text :
- https://doi.org/10.3390/plants10091784