Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery
ABSTRACT: Intensification of drought in Mediterranean–type climates has limited seedling establishment. The knowledge of the ecology of selected species and its intraspecific variation to water stress at the seedling stage should be considered in order to overcome limitations. We investigated variat...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2021-04-01
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| Series: | Scientia Agricola |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000701002&tlng=en |
| _version_ | 1798019423475335168 |
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| author | Sergio Enrique Espinoza Meza Marco Aliro Yáñez Arce Carlos Renato Magni Díaz Eduardo Enrique Martínez Herrera Juan Francisco Ovalle Ortega Suraj Antonio Vaswani Miranda |
| author_facet | Sergio Enrique Espinoza Meza Marco Aliro Yáñez Arce Carlos Renato Magni Díaz Eduardo Enrique Martínez Herrera Juan Francisco Ovalle Ortega Suraj Antonio Vaswani Miranda |
| author_sort | Sergio Enrique Espinoza Meza |
| collection | DOAJ |
| description | ABSTRACT: Intensification of drought in Mediterranean–type climates has limited seedling establishment. The knowledge of the ecology of selected species and its intraspecific variation to water stress at the seedling stage should be considered in order to overcome limitations. We investigated variations in growth, survival, and leaf–level physiology in four provenances of the endemic Cryptocarya alba (Mol.) during water stress and after re–watering. Seedlings were cultured in the nursery during 23 months and then subjected to two watering treatments based on soil water content (well–watered and water restriction, 0.38 and 0.17 cm3 cm−3, respectively) for 45 days. At the end of the watering treatments, seedling growth, above– and belowground biomass, survival, and leaf gas exchange were measured. Right after the watering treatments, the surviving seedlings were submitted to a recovery period of 21 days, in which all seedlings were re–watered at 0.38 cm3 cm−3 of soil water content and measured for leaf gas exchange. Provenances differed in growth and biomass allocation. Unlike growth and biomass, interaction between provenance and watering treatments was found for photosynthesis, stomatal conductance, transpiration, and water use efficiency of northern provenances, exhibiting the highest performance under water restriction. However, most variations observed occurred before the re–watering period and only a few occurred after this period. The four provenances under study exhibited similar photosynthesis and stomatal conductance after re–watering. Our study demonstrated phenotypic variation of C. alba and the capability of the species to withstand and recover from water stress. |
| first_indexed | 2024-04-11T16:40:23Z |
| format | Article |
| id | doaj.art-3c5d83e544044843b8fed7862c561131 |
| institution | Directory Open Access Journal |
| issn | 1678-992X |
| language | English |
| last_indexed | 2024-04-11T16:40:23Z |
| publishDate | 2021-04-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Scientia Agricola |
| spelling | doaj.art-3c5d83e544044843b8fed7862c5611312022-12-22T04:13:41ZengUniversidade de São PauloScientia Agricola1678-992X2021-04-0178suppl 110.1590/1678-992x-2020-0292Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nurserySergio Enrique Espinoza Mezahttps://orcid.org/0000-0002-6073-2778Marco Aliro Yáñez Arcehttps://orcid.org/0000-0002-3288-8791Carlos Renato Magni Díazhttps://orcid.org/0000-0002-9939-0381Eduardo Enrique Martínez Herrerahttps://orcid.org/0000-0001-6737-4785Juan Francisco Ovalle Ortegahttps://orcid.org/0000-0002-8487-3487Suraj Antonio Vaswani Mirandahttps://orcid.org/0000-0003-0359-8880ABSTRACT: Intensification of drought in Mediterranean–type climates has limited seedling establishment. The knowledge of the ecology of selected species and its intraspecific variation to water stress at the seedling stage should be considered in order to overcome limitations. We investigated variations in growth, survival, and leaf–level physiology in four provenances of the endemic Cryptocarya alba (Mol.) during water stress and after re–watering. Seedlings were cultured in the nursery during 23 months and then subjected to two watering treatments based on soil water content (well–watered and water restriction, 0.38 and 0.17 cm3 cm−3, respectively) for 45 days. At the end of the watering treatments, seedling growth, above– and belowground biomass, survival, and leaf gas exchange were measured. Right after the watering treatments, the surviving seedlings were submitted to a recovery period of 21 days, in which all seedlings were re–watered at 0.38 cm3 cm−3 of soil water content and measured for leaf gas exchange. Provenances differed in growth and biomass allocation. Unlike growth and biomass, interaction between provenance and watering treatments was found for photosynthesis, stomatal conductance, transpiration, and water use efficiency of northern provenances, exhibiting the highest performance under water restriction. However, most variations observed occurred before the re–watering period and only a few occurred after this period. The four provenances under study exhibited similar photosynthesis and stomatal conductance after re–watering. Our study demonstrated phenotypic variation of C. alba and the capability of the species to withstand and recover from water stress.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000701002&tlng=enSclerophyllus forestsseed sourcesdroughtplasticitybiomass allocation |
| spellingShingle | Sergio Enrique Espinoza Meza Marco Aliro Yáñez Arce Carlos Renato Magni Díaz Eduardo Enrique Martínez Herrera Juan Francisco Ovalle Ortega Suraj Antonio Vaswani Miranda Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery Scientia Agricola Sclerophyllus forests seed sources drought plasticity biomass allocation |
| title | Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery |
| title_full | Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery |
| title_fullStr | Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery |
| title_full_unstemmed | Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery |
| title_short | Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery |
| title_sort | growth of provenances of cryptocarya alba during water stress and after re watering in the nursery |
| topic | Sclerophyllus forests seed sources drought plasticity biomass allocation |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000701002&tlng=en |
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