Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC)
ABSTRACT Water availability and temperature are among the main abiotic factors that influence seed germination and vigor, since they act directly on biochemical and physiological processes, which result in the production of the primary root. The objective of this study was to verify the effects of s...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Campina Grande
|
| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000500349&lng=en&tlng=en |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849693555891634176 |
|---|---|
| author | Paulo C. S. Santos Clarisse P. Benedito Tatianne R. C. Alves Emanoela P. Paiva Erivanessa C. Sousa Afonso L. A. Freires |
| author_facet | Paulo C. S. Santos Clarisse P. Benedito Tatianne R. C. Alves Emanoela P. Paiva Erivanessa C. Sousa Afonso L. A. Freires |
| author_sort | Paulo C. S. Santos |
| collection | DOAJ |
| description | ABSTRACT Water availability and temperature are among the main abiotic factors that influence seed germination and vigor, since they act directly on biochemical and physiological processes, which result in the production of the primary root. The objective of this study was to verify the effects of stress on germination and vigor of H. impetiginosus (‘ipê-roxo’) seeds under different temperatures and osmotic agents. The experimental design was completely randomized, in a 6 x 2 factorial scheme (osmotic potentials x temperatures) with four replicates of 25 seeds for each osmotic agent. In order to simulate water stress, polyethylene glycol (PEG 6000) and mannitol solutions were used and distilled water was used as control. Osmotic potentials of 0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa were evaluated at temperatures of 25 and 30 °C, under 8 h photoperiod. The variables analyzed were: germination, germination speed index, shoot length, root length, and total dry matter of seedlings. Simulated water stress affected seed germination and seed vigor of H. impetiginosus at both temperatures and osmotic agents from -0.6 MPa. |
| format | Article |
| id | doaj-art-2fe4ce0dde5a4a65af22e759d05d35ff |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-2fe4ce0dde5a4a65af22e759d05d35ff2025-08-20T03:20:22ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192922534935410.1590/1807-1929/agriambi.v22n5p349-354S1415-43662018000500349Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC)Paulo C. S. SantosClarisse P. BeneditoTatianne R. C. AlvesEmanoela P. PaivaErivanessa C. SousaAfonso L. A. FreiresABSTRACT Water availability and temperature are among the main abiotic factors that influence seed germination and vigor, since they act directly on biochemical and physiological processes, which result in the production of the primary root. The objective of this study was to verify the effects of stress on germination and vigor of H. impetiginosus (‘ipê-roxo’) seeds under different temperatures and osmotic agents. The experimental design was completely randomized, in a 6 x 2 factorial scheme (osmotic potentials x temperatures) with four replicates of 25 seeds for each osmotic agent. In order to simulate water stress, polyethylene glycol (PEG 6000) and mannitol solutions were used and distilled water was used as control. Osmotic potentials of 0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa were evaluated at temperatures of 25 and 30 °C, under 8 h photoperiod. The variables analyzed were: germination, germination speed index, shoot length, root length, and total dry matter of seedlings. Simulated water stress affected seed germination and seed vigor of H. impetiginosus at both temperatures and osmotic agents from -0.6 MPa.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000500349&lng=en&tlng=enbignoniaceaeespécie florestalestresse abiótico |
| spellingShingle | Paulo C. S. Santos Clarisse P. Benedito Tatianne R. C. Alves Emanoela P. Paiva Erivanessa C. Sousa Afonso L. A. Freires Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) Revista Brasileira de Engenharia Agrícola e Ambiental bignoniaceae espécie florestal estresse abiótico |
| title | Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) |
| title_full | Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) |
| title_fullStr | Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) |
| title_full_unstemmed | Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) |
| title_short | Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC) |
| title_sort | water stress and temperature on germination and vigor of handroanthus impetiginosus mart ex dc |
| topic | bignoniaceae espécie florestal estresse abiótico |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000500349&lng=en&tlng=en |
| work_keys_str_mv | AT paulocssantos waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc AT clarissepbenedito waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc AT tatiannercalves waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc AT emanoelappaiva waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc AT erivanessacsousa waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc AT afonsolafreires waterstressandtemperatureongerminationandvigorofhandroanthusimpetiginosusmartexdc |