Data/hora: 09/06/2024 09:33:59

Provedor de dados: 	1	
País: 	Brazil	
Título: 	ALUMINUM TOXICITY IN ROOTS OF LEGUME SEEDLINGS ASSESSED BY TOPOLOGICAL ANALYSIS

Aluminum toxicity in roots of legume seedlings assessed by topological analysis	
Autores: 	Scheffer-Basso, Simone Meredith; Priori, Bruna Carla.	
Data: 	2014-11-25	
Ano: 	2014	
Palavras-chave: 	5.00.00.00-4 alumínio  biometria  raízes  morfologia  topologia  Agronomia Adesmia; Altitude; Lotus; Magnitude; Path length; Trifolium.	
Resumo: 	abstract: The effect of the aluminum in root has been evaluated by linear and weight measurements, but remains to be understood about the influence of this element on branching configuration of the root system. This study had the objective to assess the aluminum toxicity in roots of 21-day-old seedlings of three forage legumes, Adesmia latifolia, Trifolium repens and T. pratense (Fabaceae), by topological analysis. The legumes were grown in Oxisol treated or not with dolomite lime, which resulted in two Al saturation and pH: (a) Al= 0 %, pH= 6.2; (b) Al= 16 %, pH= 4.8. Number of first-order roots, external links (magnitude), total links in the longest unique path (altitude), total links in the primary root (altitude of primary root), total exterior path length, total links, internal links, branching points, and proportion of branching in primary root were determined. The topological variables were significantly reduced by Al, regardless to the legumes. The altitude-slope on magnitude showed that there was a more randomized branching configuration in seedlings grown in acid soil. A. latifolia was the most plastic species, with reducing of the slopes from 0.9758 (Al-absence) to 0.6858 (Al-presence), showing herringbone and randomized branching, respectively.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/18362

10.4025/actasciagron.v37i1.18362	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/18362/pdf_53

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/18362/4756	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; v. 37, n. 1 (2015); 61-68

Acta Scientiarum. Agronomy; v. 37, n. 1 (2015); 61-68

1807-8621

1679-9275