Effect of Silicon under Water Deficit on Antioxidant Enzymes Activities at Different Phenological Stages in Wheat (Triticum aestivum L.)
| Autor: | Sarang S Sapre, Dinesh N. Vakharia |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology food and beverages Plant Science APX Malondialdehyde 01 natural sciences Biochemistry Enzyme assay 03 medical and health sciences chemistry.chemical_compound Horticulture 030104 developmental biology chemistry Catalase Germination biology.protein Hydrogen peroxide Agronomy and Crop Science Water content 010606 plant biology & botany Peroxidase |
| Zdroj: | Indian Journal of Agricultural Biochemistry. 32:30 |
| ISSN: | 0974-4479 0970-6399 |
| DOI: | 10.5958/0974-4479.2019.00004.2 |
| Popis: | A pot experiment was conducted to evaluate the effect of foliar application of silicon (Si) at different stages of growth in wheat. Foliar treatment of silicon was given on 15th and 30th days after germination (DAG) and the plants were subjected to water deficit stress at booting, flowering and grain filling stages. The greater decline for relative water content (RWC) and hydrogen peroxide (H2O2) was observed in drought (Dr) as compared to Si + Dr treatment. Si + Dr treatment resulted in the lowest rise in malondialdehyde (MDA) from booting to grain filling stage. With the progression of plant age the peroxidase (POX), ascorbate peroxidase (APX) and catalase (CAT) enzyme activity declined. The water deficit stress induced greater increase in POX and APX activity in tolerant variety. Si + Dr treatment was able to counter the decline caused in CAT activity due to the implication of water deficit stress. Overall, the silicon treatment reduced the oxidative stress. |
| Databáze: | OpenAIRE |
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