Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings?
Abstract Water deficit to causes serious problems in the growth and development of plants, impairing their metabolism. Thus, it is necessary to use agents that can mitigate plant damage. This study assesses the potential of silicon to mitigate water deficit stress in Dipteryx alata Vogel seedlings a...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
2022-08-01
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100712&tlng=en |
| _version_ | 1828324350706581504 |
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| author | M. S. Silva S. P. Q. Scalon C. C. Santos J. M. Silverio J. K. V. Santos D. M. Dresch |
| author_facet | M. S. Silva S. P. Q. Scalon C. C. Santos J. M. Silverio J. K. V. Santos D. M. Dresch |
| author_sort | M. S. Silva |
| collection | DOAJ |
| description | Abstract Water deficit to causes serious problems in the growth and development of plants, impairing their metabolism. Thus, it is necessary to use agents that can mitigate plant damage. This study assesses the potential of silicon to mitigate water deficit stress in Dipteryx alata Vogel seedlings and to help in their recovery after the resumption of irrigation. The study analyzed four water regimes: (I) Continuous irrigation; (II) Water deficit without Si; (III) Water deficit + 0.75 mL Si; and (IV) Water deficit + 1.50 mL Si. Seedlings were evaluated in four periods: (1) (T0 – time zero) at the beginning of the experiment, before irrigation suspension; (2) (P0) when the photosynthetic rates (A) of seedlings under irrigation suspension reached values close to zero, period in which irrigation was resumed; (3) (REC) when A reached values close to those of seedlings under continuous irrigation, characterizing the recovery period; and (4) (END) 45 days after REC, when seedlings were kept under continuous irrigation, similar to the control. Application of 0.75 mL Si alleviates damage to the photosynthetic apparatus of D. alata seedlings that remain longer under water deficit, and contributes to faster physiological recovery after the resumption of irrigation. D. alata seedlings have recovery potential after the stress period, regardless of Si application. |
| first_indexed | 2024-04-13T19:05:25Z |
| format | Article |
| id | doaj.art-098a968dcb2f450ba5e595f75af52ca5 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-04-13T19:05:25Z |
| publishDate | 2022-08-01 |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-098a968dcb2f450ba5e595f75af52ca52022-12-22T02:33:59ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-43752022-08-018210.1590/1519-6984.259016Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings?M. S. Silvahttps://orcid.org/0000-0002-0288-3666S. P. Q. Scalonhttps://orcid.org/0000-0003-2024-7695C. C. Santoshttps://orcid.org/0000-0001-6741-2622J. M. Silveriohttps://orcid.org/0000-0002-5875-8645J. K. V. Santoshttps://orcid.org/0000-0002-9641-9783D. M. Dreschhttps://orcid.org/0000-0003-2287-5783Abstract Water deficit to causes serious problems in the growth and development of plants, impairing their metabolism. Thus, it is necessary to use agents that can mitigate plant damage. This study assesses the potential of silicon to mitigate water deficit stress in Dipteryx alata Vogel seedlings and to help in their recovery after the resumption of irrigation. The study analyzed four water regimes: (I) Continuous irrigation; (II) Water deficit without Si; (III) Water deficit + 0.75 mL Si; and (IV) Water deficit + 1.50 mL Si. Seedlings were evaluated in four periods: (1) (T0 – time zero) at the beginning of the experiment, before irrigation suspension; (2) (P0) when the photosynthetic rates (A) of seedlings under irrigation suspension reached values close to zero, period in which irrigation was resumed; (3) (REC) when A reached values close to those of seedlings under continuous irrigation, characterizing the recovery period; and (4) (END) 45 days after REC, when seedlings were kept under continuous irrigation, similar to the control. Application of 0.75 mL Si alleviates damage to the photosynthetic apparatus of D. alata seedlings that remain longer under water deficit, and contributes to faster physiological recovery after the resumption of irrigation. D. alata seedlings have recovery potential after the stress period, regardless of Si application.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100712&tlng=enattenuationbaruchlorophyll a fluorescencegas exchangewater stress |
| spellingShingle | M. S. Silva S. P. Q. Scalon C. C. Santos J. M. Silverio J. K. V. Santos D. M. Dresch Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? Brazilian Journal of Biology attenuation baru chlorophyll a fluorescence gas exchange water stress |
| title | Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? |
| title_full | Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? |
| title_fullStr | Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? |
| title_full_unstemmed | Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? |
| title_short | Does silicon help to alleviate water deficit stress and in the recovery of Dipteryx alata seedlings? |
| title_sort | does silicon help to alleviate water deficit stress and in the recovery of dipteryx alata seedlings |
| topic | attenuation baru chlorophyll a fluorescence gas exchange water stress |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842022000100712&tlng=en |
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