Detalhes bibliográficos
| Ano de defesa: |
2010 |
| Autor(a) principal: |
LIMA, Gileno Vitor Mota
 |
| Orientador(a): |
CAMARA, Terezinha de Jesus Rangel |
| Banca de defesa: |
PORTO, Ana Lúcia Figueiredo,
CARVALHO, Josabete Salgueiro Bezerra de,
SOARES, Taciana Cavalcanti Vieira,
SILVA, Tânia Maria Sarmento da |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Botânica
|
| Departamento: |
Departamento de Biologia
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Palavras-chave em Inglês: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/4817
|
Resumo: |
This study evaluated the in vitro rooting of varieties of sugar cane RB92579-RB872552 and grown on MS medium supplemented with the auxin IAA (3-acetic acid) and IBA (indole-3-butyric acid). Established the following treatments: T0 - MS without auxin; T1 - 1.5 μmol L-1 IAA, T2 - 3.0 μmol L-1 IAA, T3 - 1.5 μmol L-1 IBA, T4 - 3.0 μmol L-1 IBA. The highest percentage of rooting (78.84%) of variety RB92579 was observed in plants of the T3, while for variety RB872552 the best result was obtained in T1 (82.5%). The varieties showed a higher rate of root initiation on the fifth day after inoculation, along with decrease of rooting. Treatments with IAA favored the formation of leaves and tillers in both varieties. The variety RB872552 the average number of leaves was higher than that of RB92579 throughout the experiment, regardless of the auxin treatment. Tillering was greater in variety RB92579 showed that 1.38, 1.60 and 1.87 tillers / plant at 10, 15 and 20 days respectively, while the variety RB 872552 had 0.96, 1.15 and 1, 32 tillers / plant in the same period. Tillering increased with time of treatment independent of the concentration and type of auxin used. |
