Physiological changes of pepper accessions in response to salinity and water stress
New sources of water stress and salinity tolerances are needed for crops grown in marginal lands. Pepper is considered one of the most important crops in the world. Many varieties belong to the genus Capsicum spp., and display wide variability in tolerance/sensitivity terms in response to drought an...
| Autores principales: | , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
2018
|
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6061 |
| _version_ | 1855032359870529536 |
|---|---|
| author | López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles |
| author_browse | Calatayud, Ángeles López-Galarza, Salvador López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto |
| author_facet | López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles |
| author_sort | López-Serrano, Lidia |
| collection | ReDivia |
| description | New sources of water stress and salinity tolerances are needed for crops grown in marginal lands. Pepper is considered one of the most important crops in the world. Many varieties belong to the genus Capsicum spp., and display wide variability in tolerance/sensitivity terms in response to drought and salinity stress. The objective was to screen seven salt/drought-tolerant pepper accessions to breed new cultivars that could overcome abiotic stresses, or be used as new crops in land with water and salinity stress. Fast and effective physiological traits were measured to achieve the objective. The present study showed wide variability of the seven pepper accessions in response to both stresses. Photosynthesis, stomatal conductance and transpiration reduced mainly under salinity due to stomatal and non-stomatal (Na+ accumulation) constraints and, to a lesser extent, in the accessions grown under water stress. A positive relationship between CO2 fixation and fresh weight generation was observed for both stresses. Decreases Psi(s) and Psi(w) and increased proline were observed only when accessions were grown under salinity. However, these factors were not enough to alleviate salt effects and an inverse relation was noted between plant salt tolerance and proline accumulation. Under water stress, A31 was the least affected and A34 showed the best tolerance to salinity in terms of photosynthesis and biomass. |
| format | article |
| id | ReDivia6061 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | ReDivia60612025-04-25T14:46:05Z Physiological changes of pepper accessions in response to salinity and water stress López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles New sources of water stress and salinity tolerances are needed for crops grown in marginal lands. Pepper is considered one of the most important crops in the world. Many varieties belong to the genus Capsicum spp., and display wide variability in tolerance/sensitivity terms in response to drought and salinity stress. The objective was to screen seven salt/drought-tolerant pepper accessions to breed new cultivars that could overcome abiotic stresses, or be used as new crops in land with water and salinity stress. Fast and effective physiological traits were measured to achieve the objective. The present study showed wide variability of the seven pepper accessions in response to both stresses. Photosynthesis, stomatal conductance and transpiration reduced mainly under salinity due to stomatal and non-stomatal (Na+ accumulation) constraints and, to a lesser extent, in the accessions grown under water stress. A positive relationship between CO2 fixation and fresh weight generation was observed for both stresses. Decreases Psi(s) and Psi(w) and increased proline were observed only when accessions were grown under salinity. However, these factors were not enough to alleviate salt effects and an inverse relation was noted between plant salt tolerance and proline accumulation. Under water stress, A31 was the least affected and A34 showed the best tolerance to salinity in terms of photosynthesis and biomass. 2018-05-09T16:30:59Z 2018-05-09T16:30:59Z 2017 article publishedVersion Lopez-Serrano, L., Penella, C., San Bautista, A., Lopez-Galarza, S., Calatayud, A. (2017). Physiological changes of pepper accessions in response to salinity and water stress. Spanish Journal of Agricultural Research, 15(3), e0804. 1695-971X http://hdl.handle.net/20.500.11939/6061 10.5424/sjar/2017153-11147 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ electronico |
| spellingShingle | López-Serrano, Lidia Penella, Consuelo San Bautista, Alberto López-Galarza, Salvador Calatayud, Ángeles Physiological changes of pepper accessions in response to salinity and water stress |
| title | Physiological changes of pepper accessions in response to salinity and water stress |
| title_full | Physiological changes of pepper accessions in response to salinity and water stress |
| title_fullStr | Physiological changes of pepper accessions in response to salinity and water stress |
| title_full_unstemmed | Physiological changes of pepper accessions in response to salinity and water stress |
| title_short | Physiological changes of pepper accessions in response to salinity and water stress |
| title_sort | physiological changes of pepper accessions in response to salinity and water stress |
| url | http://hdl.handle.net/20.500.11939/6061 |
| work_keys_str_mv | AT lopezserranolidia physiologicalchangesofpepperaccessionsinresponsetosalinityandwaterstress AT penellaconsuelo physiologicalchangesofpepperaccessionsinresponsetosalinityandwaterstress AT sanbautistaalberto physiologicalchangesofpepperaccessionsinresponsetosalinityandwaterstress AT lopezgalarzasalvador physiologicalchangesofpepperaccessionsinresponsetosalinityandwaterstress AT calatayudangeles physiologicalchangesofpepperaccessionsinresponsetosalinityandwaterstress |