Influence of hydrolized casein on the Oncidium baueri (Orchidaceae) in vitro cultivation
DOI:
https://doi.org/10.5433/1679-0359.2007v28n2p207Keywords:
Nitrogen, orchid, tissue cultureAbstract
The nitrogen is essentially important for most in vitro cultivated species. It is regarded to the physiological and biochemical processes involved in growth control, differentiation and morphogenesis, and casein is one of the main nitrogen supplementation sources. The objective of this work was to evaluate the influence of different concentrations of hydrolized casein on the in vitro vegetative growth and rooting of Oncidium baueri (Orchidaceae). The treatments tested were: T1- 0.0 g.L-1; T2- 0.5 g.L-1; T3- 1.0 g. L-1; T4 –2.0 g.L-1; T5- 4.0 g.L-1 of hydrolized casein. The culture medium used was the Murashige and Skoog modified with half macronutrients concentration. Total fresh mass, aerial part height, biggest root length, roots number and lateral sprouts number were evaluated after six months from the beginning of the experiment. It was not detected any beneficial effects of casein on vegetative and root development of Oncidium baueri. The percentage of surviving plants was 100%, 95 % and 94%, respectively for T1, T2 and T3, and 80% of surviving plants for T4 and T5.
Downloads
Downloads
Published
How to Cite
Issue
Section
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.
