Germinação de sementes de braquiária sob diferentes concentrações de giberelina

Adriano Bortolotti da Silva; Paulo Roberto Corrêa Landgraf; Gregory Washington Oliva Machado

doi:10.5433/1679-0359.2013v34n2p657

Brachiaria seeds germination under different concentration of gibberellin

Authors

Adriano Bortolotti da Silva Universidade José do Rosario Vellano
Paulo Roberto Corrêa Landgraf Universidade José do Rosário Vellano
Gregory Washington Oliva Machado Universidade José do Rosario Vellano

DOI:

https://doi.org/10.5433/1679-0359.2013v34n2p657

Keywords:

B. brizantha, Dormency, Tetrazolium test.

Abstract

Dormancy in tropical grasses is associated with physiological or physical causes present in freshly harvested seeds. The aim of this study was to evaluate the effect of different concentrations of GA3 in the percentage of germination and suppuration of dormancy of Brachiaria brizantha. Seeds of B. brizantha 'Marandu' and 'MG5' were immersed in different concentrations of GA3 (0, 25, 50, 75 and 100 mg.L-1) for 2h. After this process, the germination and viability of seed were determinated. The design was completely randomized consisting of 5 treatments with 4 replications for both cultivars. Germination was affected by different concentrations of gibberellins and best results were obtained with the use of 62 and 57 mg.L-1 GA3 for 'Marandu' and 'MG 5', respectively.

Downloads

Download data is not yet available.

Author Biographies

Adriano Bortolotti da Silva, Universidade José do Rosario Vellano

Engº Agrº, Prof. D. Sc., Faculdade de Agronomia. Universidade José do Rosário Vellano, UNIFENAS, Rod. MG. 179, Km 0, C P 23, CEP 37130-000, Alfenas, MG.

Paulo Roberto Corrêa Landgraf, Universidade José do Rosário Vellano

Engº Agrº, Prof. D. Sc., Faculdade de Agronomia. Universidade José do Rosário Vellano, UNIFENAS, Rod. MG. 179, Km 0, C P 23, CEP 37130-000, Alfenas, MG.

Gregory Washington Oliva Machado, Universidade José do Rosario Vellano

Discente de graduação da UNIFENAS, Alfenas, MG.

Downloads

PDF (Português (Brasil))

Published

2013-05-14

How to Cite

Silva, A. B. da, Landgraf, P. R. C., & Machado, G. W. O. (2013). Brachiaria seeds germination under different concentration of gibberellin. Semina: Ciências Agrárias, 34(2), 657–662. https://doi.org/10.5433/1679-0359.2013v34n2p657

Download Citation

Issue

Vol. 34 No. 2 (2013)

Section

Communication

License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.

This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.

The opinions expressed by the authors of the articles are their sole responsibility.

The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.