التفاصيل البيبلوغرافية
| العنوان: |
PROPAGAÇÃO DE PAU-ROSA (Aniba Rosaeodora Ducke) POR ESTACAS E MINIESTACAS. (Portuguese) |
| Alternate Title: |
VEGETATIVE PROPAGATION OF ROSEWOOD (Aniba Rosaeodora Ducke BY CUTTINGS AND MINICUTTINGS. (English) |
| المؤلفون: |
MENEZES, André, SAMPAIO, Paulo Tarso Barbosa, BLIND, Ariel Dotto |
| المصدر: |
Nucleus (16786602); abr2018, Vol. 15 Issue 1, p515-521, 7p |
| Abstract (English): |
The objective of this study was to evaluate survival and rooting of cuttings and minicuttings of rosewood (Aniba rosaeodora Ducke). Cuttings from juvenile material were collected from the upper third of seedlings with 18 months of age, modeled with 12 cm long, 6-8 mm in diameter and a pair of leaves halved. The minicuttings obtained from seedlings sprout pruned and shaped with 5 cm long, 4-6 mm in diameter and a pair of leaves halved. The experiments were conducted at the nursery rooting in the institute INPA, Brasil, covered with protective screen against direct incidence of sunlight (50%). The experimental design of cuttings was randomized in a factorial outline (2x4), with the factors: two types of substrate and four concentration of IBA. For the minicuttings, was used a randomized design with five treatments (0, 2000, 4000, 5000 and 6000 mg L-1 of IBA) and five replicates with plots of six minicuttings. In the experiment was evaluated the following parameters: rooting percentage, survival percentage, percentage of callus, percentage of shoot and root number, the observation period of cuttings and minicuttings in the nursery was 180 days and 90 days respectively. The results indicate that it is possible vegetative propagation of rosewood cuttings and minicuttings independ on the use of the IBA. However, the minicuttings had higher rooting percentage (88,7%), survival (98%), and shorter time interval of rooting (90 days) in relation to cuttings, becoming an alternative to propagation this species. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): |
A multiplicação clonal em espécies florestais nativas é uma prática eficiente para diminuição do tempo de formação de mudas e reprodução de genótipos superiores. Desta forma, objetivou-se neste trabalho avaliar a viabilidade técnica de propagação de pau-rosa (Aniba rosaeodora Ducke) por estacas e miniestacas. As estacas foram coletadas do terço superior de mudas com 18 meses de idade e 10 cm de comprimento, sete milímetros de diâmetro e um par de meiasfolhas. As miniestacas foram obtidas das rebrotas das cepas de plantas podadas, com cinco centímetros de comprimento, cinco milímetros de diâmetro e um par de meias-folhas. Os experimentos foram conduzidos no viveiro de enraizamento, dotado de sistema de nebulização intermitente e coberto com tela de proteção contra os raios solares (50%). O delineamento experimental para as estacas foi inteiramente casualizado em esquema fatorial 2x4, sendo os fatores: dois tipos de substrato e quatro concentrações de AIB. Para as miniestacas, foi utilizado o delineamento inteiramente casualizado, com cinco tratamentos (0, 2000, 4000, 5000 e 6000 mg L-1 de AIB) e cinco repetições com parcelas de seis miniestacas. Os resultados indicam que é possível a propagação vegetativa do pau-rosa por estacas e miniestacas independente do uso de auxinas (AIB). Entretanto, as miniestacas apresentaram maior porcentagem de enraizamento (88,7%), sobrevivência (98%), menor tempo de enraizamento (90 dias) em relação às estacas, tornando-se uma alternativa para propagação vegetativa desta espécie. [ABSTRACT FROM AUTHOR] |
|
Copyright of Nucleus (16786602) is the property of Fundacao Educacional de Ituverava and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
