Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination
Paricá (Schizolobium amazonicum Huber ex Ducke) is a tree species of the Leguminosae-Caesalpinioideae botanical family. This species has been used in rehabilitation programs for of degraded areas and it has good acceptance at local timber markets as well. This study aimed to evaluate the effects of...
| Autor principal: | Ramos, Michele Braule Pinto |
|---|---|
| Outros Autores: | Varela, Vania Palmeira, Melo, Maria de Fatima Figueiredo |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Revista Brasileira de Sementes
2020
|
| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18762 |
| id |
oai:repositorio:1-18762 |
|---|---|
| recordtype |
dspace |
| spelling |
oai:repositorio:1-18762 Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination Influência da temperatura e da água sobre a germinação de sementes de Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) Ramos, Michele Braule Pinto Varela, Vania Palmeira Melo, Maria de Fatima Figueiredo Caesalpinioideae Fabaceae Schizolobium Amazonicum Schizolobium Parahyba Paricá (Schizolobium amazonicum Huber ex Ducke) is a tree species of the Leguminosae-Caesalpinioideae botanical family. This species has been used in rehabilitation programs for of degraded areas and it has good acceptance at local timber markets as well. This study aimed to evaluate the effects of different water contents in the substrate and temperatures on germination of S. amazonicum. Seeds were immersed in sulfuric acid for 50 minutes in order to break the impermeability of the seed-coat. After this, they were seeded over Germitest paper rolls wetted with water contents (mL.g -1 paper) equivalent to 1.5, 2, 2.5 and 3 times the substrate mass without new water addition, and they were maintained in chambers at constant temperatures of 25, 30 and 35°C. In addition to the germination percentage, the speed of germination index and length of primary roots and hypocotyl of normal seedlings were also evaluated. A completely randomized design was used with a 4x3 factorial. The best germination performance was observed at temperatures of 25, 30 and 35°C combining with water contents of 2.5 and 3 times the paper mass. The germination speed was favored by temperatures of 30 and 35°C as well as by the largest water content, which corresponded to 3 times the paper mass. The best results related to root and hypocotyl development were observed in treatments involving water content 3 times the paper mass at a temperature of 25°C. 2020-06-15T22:02:55Z 2020-06-15T22:02:55Z 2006 Artigo https://repositorio.inpa.gov.br/handle/1/18762 pt_BR Volume 28, Número 1, Pags. 163-168 Restrito application/pdf Revista Brasileira de Sementes |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Caesalpinioideae Fabaceae Schizolobium Amazonicum Schizolobium Parahyba |
| spellingShingle |
Caesalpinioideae Fabaceae Schizolobium Amazonicum Schizolobium Parahyba Ramos, Michele Braule Pinto Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| topic_facet |
Caesalpinioideae Fabaceae Schizolobium Amazonicum Schizolobium Parahyba |
| description |
Paricá (Schizolobium amazonicum Huber ex Ducke) is a tree species of the Leguminosae-Caesalpinioideae botanical family. This species has been used in rehabilitation programs for of degraded areas and it has good acceptance at local timber markets as well. This study aimed to evaluate the effects of different water contents in the substrate and temperatures on germination of S. amazonicum. Seeds were immersed in sulfuric acid for 50 minutes in order to break the impermeability of the seed-coat. After this, they were seeded over Germitest paper rolls wetted with water contents (mL.g -1 paper) equivalent to 1.5, 2, 2.5 and 3 times the substrate mass without new water addition, and they were maintained in chambers at constant temperatures of 25, 30 and 35°C. In addition to the germination percentage, the speed of germination index and length of primary roots and hypocotyl of normal seedlings were also evaluated. A completely randomized design was used with a 4x3 factorial. The best germination performance was observed at temperatures of 25, 30 and 35°C combining with water contents of 2.5 and 3 times the paper mass. The germination speed was favored by temperatures of 30 and 35°C as well as by the largest water content, which corresponded to 3 times the paper mass. The best results related to root and hypocotyl development were observed in treatments involving water content 3 times the paper mass at a temperature of 25°C. |
| format |
Artigo |
| author |
Ramos, Michele Braule Pinto |
| author2 |
Varela, Vania Palmeira Melo, Maria de Fatima Figueiredo |
| author2Str |
Varela, Vania Palmeira Melo, Maria de Fatima Figueiredo |
| title |
Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| title_short |
Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| title_full |
Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| title_fullStr |
Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| title_full_unstemmed |
Influence of temperature and water on Paricá (Schizolobium amazonicum Huber ex Ducke - Leguminosae-Caesalpinioideae) seed germination |
| title_sort |
influence of temperature and water on paricá (schizolobium amazonicum huber ex ducke - leguminosae-caesalpinioideae) seed germination |
| publisher |
Revista Brasileira de Sementes |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18762 |
| _version_ |
1787142281165275136 |
| score |
11.755432 |