| Autor: |
Taha RS; Botany Department, Faculty of Agriculture, Beni-Suef University, Beni Suef 62521, Egypt., Seleiman MF; Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.; Department of Crop Sciences, Faculty of Agriculture, Menoufia University, Shibin El-Kom 32514, Egypt., Shami A; Biology Department, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11617, Saudi Arabia., Alhammad BA; Biology Department, College of Science and Humanity Studies, Prince Sattam Bin Abdulaziz University, Al Kharj Box 292, Riyadh 11942, Saudi Arabia., Mahdi AHA; Agronomy Department, Faculty of Agriculture, Beni-Suef University, Beni Suef 62521, Egypt. |
| Jazyk: |
angličtina |
| Zdroj: |
Plants (Basel, Switzerland) [Plants (Basel)] 2021 May 21; Vol. 10 (6). Date of Electronic Publication: 2021 May 21. |
| DOI: |
10.3390/plants10061040 |
| Abstrakt: |
Selenium (Se) and silicon (Si) are considered advantageous elements to induce plants' tolerance to various environmental stresses. Wheat yield is negatively affected by salinity stress, especially in dry and semi-dry areas. Therefore, the objective of the current study was to investigate the effects of Se, Si and their combinations (0 as control, Se 15 , Se 30 , Si 15 , Si 30 , Se 15 + Si 15 , and Se 30 + Si 30 mM) in alleviating the deleterious effects of salinity stress (7.61 dS m -1 , real field conditions) on anatomical characteristics as well as the physio-biochemical and productivity parameters of wheat plants. The selenium and silicon treatments and their combinations caused significant amelioration in growth, anatomical and physiological attributes, and grain yields of salinity-stressed wheat in comparison with the untreated plants (control treatment). The integrated application of Se 30 + Si 30 significantly increased plant growth (i.e., plant height 28.24%, number of tillers m -2 76.81%, fresh weight plant -1 80.66%, and dry weight plant -1 79.65%), Fv/Fm (44.78%), performance index (PI; 60.45%), membrane stability index (MSI; 36.39%), relative water content (RWC; 29.39%), total soluble sugars (TSS; 53.38%), proline (33.74%), enzymatic antioxidants (i.e., CAT activity by 14.45%, GR activity by 67.5%, SOD activity by 35.37% and APX activity by 39.25%) and non-enzymatic antioxidants (i.e., GSH content by 117.5%, AsA content by 52.32%), yield and its components (i.e., number of spikelets spike -1 29.55%, 1000-grain weight 48.73% and grain yield ha -1 26.44%). The anatomical traits of stem and leaves were improved in wheat plants treated with Se 30 + Si 30 . These changes resulting from the exogenous applications of Se, Si or their combinations, in turn, make these elements prospective in helping wheat plants to acclimate successfully to saline soil. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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