Your browser doesn't support javascript.
loading
Euclidean distance can identify the mannitol level that produces the most remarkable integral effect on sugarcane micropropagation in temporary immersion bioreactors.
Gómez, Daviel; Hernández, L Ázaro; Yabor, Lourdes; Beemster, Gerrit T S; Tebbe, Christoph C; Papenbrock, Jutta; Lorenzo, José Carlos.
Afiliação
  • Gómez D; Laboratory for Plant Breeding, Bioplant Center, University of Ciego de Avila, Ciego de Ávila, 69450, Cuba.
  • Hernández LÁ; Laboratory for Plant Breeding, Bioplant Center, University of Ciego de Avila, Ciego de Ávila, 69450, Cuba.
  • Yabor L; Laboratory for Plant Breeding, Bioplant Center, University of Ciego de Avila, Ciego de Ávila, 69450, Cuba.
  • Beemster GTS; Laboratory for Integrated Plant Physiology Research (IMPRES), University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium.
  • Tebbe CC; Thünen Institute of Biodiversity, Federal Research Institute for Rural Areas, Forestry and Fisheries, Brunswick, Germany.
  • Papenbrock J; Institute of Botany, Leibniz University Hannover, Herrenhaeuser Str. 2, 30419, Hanover, Germany.
  • Lorenzo JC; Laboratory for Plant Breeding, Bioplant Center, University of Ciego de Avila, Ciego de Ávila, 69450, Cuba. jclorenzo@bioplantas.cu.
J Plant Res ; 131(4): 719-724, 2018 Jul.
Article em En | MEDLINE | ID: mdl-29546495
Plant scientists usually record several indicators in their abiotic factor experiments. The common statistical management involves univariate analyses. Such analyses generally create a split picture of the effects of experimental treatments since each indicator is addressed independently. The Euclidean distance combined with the information of the control treatment could have potential as an integrating indicator. The Euclidean distance has demonstrated its usefulness in many scientific fields but, as far as we know, it has not yet been employed for plant experimental analyses. To exemplify the use of the Euclidean distance in this field, we performed an experiment focused on the effects of mannitol on sugarcane micropropagation in temporary immersion bioreactors. Five mannitol concentrations were compared: 0, 50, 100, 150 and 200 mM. As dependent variables we recorded shoot multiplication rate, fresh weight, and levels of aldehydes, chlorophylls, carotenoids and phenolics. The statistical protocol which we then carried out integrated all dependent variables to easily identify the mannitol concentration that produced the most remarkable integral effect. Results provided by the Euclidean distance demonstrate a gradually increasing distance from the control in function of increasing mannitol concentrations. 200 mM mannitol caused the most significant alteration of sugarcane biochemistry and physiology under the experimental conditions described here. This treatment showed the longest statistically significant Euclidean distance to the control treatment (2.38). In contrast, 50 and 100 mM mannitol showed the lowest Euclidean distances (0.61 and 0.84, respectively) and thus poor integrated effects of mannitol. The analysis shown here indicates that the use of the Euclidean distance can contribute to establishing a more integrated evaluation of the contrasting mannitol treatments.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reatores Biológicos / Saccharum / Manitol Tipo de estudo: Guideline / Prognostic_studies Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Reatores Biológicos / Saccharum / Manitol Tipo de estudo: Guideline / Prognostic_studies Idioma: En Ano de publicação: 2018 Tipo de documento: Article