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Growth and symptoms of deficiency of micronutrients in young plants of jute / Crescimento e sintomas de deficiência de micronutrientes em plantas jovens de juta
Viégas, Ismael de Jesus Matos; Galvão, Jessivaldo Rodrigues; Santos, Cassio Rafael Costa dos; Matos, Gilson Sérgio Bastos de; Silva, Diocléa Almeida Seabra; Galate, Rosemiro dos Santos; Ribeiro, Felipe Oliveira.
  • Viégas, Ismael de Jesus Matos; Federal Rural University of Amazon. Belém. BR
  • Galvão, Jessivaldo Rodrigues; Federal Rural University of Amazon. Belém. BR
  • Santos, Cassio Rafael Costa dos; Federal Rural University of Amazon. Belém. BR
  • Matos, Gilson Sérgio Bastos de; Federal Rural University of Amazon. Belém. BR
  • Silva, Diocléa Almeida Seabra; Federal Rural University of Amazon. Belém. BR
  • Galate, Rosemiro dos Santos; Federal Rural University of Amazon. Belém. BR
  • Ribeiro, Felipe Oliveira; Agronomist. Belém. BR
Biosci. j. (Online) ; 34(6 Supplement 1): 131-140, nov./dec. 2018.
Article in English | LILACS | ID: biblio-968878
ABSTRACT
The knowledge of micronutrients for Jute (Corchorus capsularis L.) plants might be a valuable tool to the subsidize taking of decisions to the management of such species. The objective of this study was to describe the symptoms of micronutrient deficiencies in jute plants and to analyze micronutrient contents in leaves, stems, and roots. The experiment was carried out in a greenhouse, with six treatments and four replications in a randomized block design. The treatments were, as follows Complete solution (C) and solution with the omission of the following nutrients B, Cu, Fe, Mn, and Zn. Except for Cu deficiency, the morphological alterations were easily characterized for all nutrients evaluated, in which Fe and Zn were the first and the last to cause symptoms in plants, respectively. In general, the nutrients that were most limiting to the growth of Jute plant and for dry mass were Fe and B. The omission of B, Mn and Fe limited root growth while the Zn and Cu deficiencies limited the growth of the aerial part. The nutrient contents were ordered as it follows Fe> Mn> Zn> B> Cu in the leaves, Fe> Mn> B> Zn> Cu in the stem and Fe> Zn> Mn> B> Cu in the roots. For seedings of Jute, the deficiency of Fe and B are the most limiting and the suitable nutritional contents for those seedlings are 11.37; 8.99; 346.14; 248.88 and 77,28 mg.kg-1 for B, Cu, Fe, Mn and Zn in the leaves, respectively.
RESUMO
O conhecimento acerca de micronutrientes em plantas de juta (Corchorus capsularis L.) pode ser uma importante ferramenta para subsidiar tomadas de decisão quanto ao manejo de tal espécie. O objetivo do presente estudo foi descrever os sintomas de deficiência de micronutrientes em plantas de juta e analisar o teor de micronutrientes contidos em folhas, caules e raízes. O experimento foi conduzido em casa de vegetação, com seis tratamentos e quatro repetições para cada tratamento em delineamento em blocos ao acaso. Os tratamentos foram solução completa (C) e solução com a omissão dos seguintes nutrientes B, Cu, Fe, Mn e Zn. Com exceção da deficiência de Cu, as alterações morfológicas foram fáceis de caracterizar para todos os nutrientes analisados, com Fe e Zn sendo o primeiro e o último a causar sintomas em plantas, respectivamente. Em geral, os nutrientes que foram os mais limitantes para o crescimento e matéria seca de juta foram Fe e B. A omissão de B, Mn e Fe limitou o crescimento radicular, enquanto que a deficiência de Zn e Culimitou o crescimento da parte aérea. O teor de nutrientes seguiu a seguinte ordem decrescente Fe> Mn> Zn> B> Cu nas folhas, Fe> Mn> B> Zn> Cu no caule e Fe> Zn> Mn> B> Cu nas raízes. Pra mudas de juta, a deficiência de Fe e B são as mais limitantes e os teores nutricionais adequados para estas mudas são 11,37; 8.99; 346.14; 248.88; and 77.28 mg.kg-1, respectivamente, para B, Cu, Fe, Mn and Zn nas folhas.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Plants / Micronutrients / Corchorus / Mineral Deficiency / Plant Development Type of study: Controlled clinical trial / Diagnostic study Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Agronomist/BR / Federal Rural University of Amazon/BR

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Full text: Available Index: LILACS (Americas) Main subject: Plants / Micronutrients / Corchorus / Mineral Deficiency / Plant Development Type of study: Controlled clinical trial / Diagnostic study Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Agronomist/BR / Federal Rural University of Amazon/BR