tolerância de genótipos de trigo comum, trigo duro e triticale à toxicidade de alumínio em soluções nutritivas tolerance of bread wheat, durum wheat and triticale genotypes to aluminum toxicity in nutrient solution

Clicks: 304
ID: 164857
2006
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #31 of 206 articles by views in revista espanola de salud publica

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 206 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Foi estudado o comportamento diferencial de 12 genótipos de trigo comum (Triticum aestivum L.), um genótipo de trigo duro (Triticum durum L.), e um de triticale (Triticosecale sp) em soluções nutritivas de tratamento contendo duas concentrações salinas (1/5 e 1/10 da completa) e seis concentrações de alumínio ( 0, 2, 4, 6, 8 e 10 mg L-1), à temperatura de 25 ± 1ºC e pH 4,0. Foram utilizadas dez plântulas por parcela e quatro repetições. A tolerância foi medida pela capacidade de as raízes primárias continuarem a crescer em solução sem alumínio, após permanecer 48 horas em solução nutritiva completa, contendo uma concentração conhecida de alumínio combinada com cada uma das concentrações salinas. Os genótipos de trigo comum IAC-289, IAC-350 e IAC-370 e a cultivar controle Anahuac, e os genótipos de trigo duro IAC-1003 e de triticale IAC-5 foram os mais sensíveis a níveis crescentes de Al3+nas soluções nutritivas de tratamento e, portanto, somente seriam indicados para cultivo em solos corrigidos. Os genótipos de trigo comum IAC-24 e IAC-378 e a cultivar controle BH-1146 destacaram-se pela tolerância à toxicidade de Al3+, com potencial para uso em solos ácidos e como fontes genéticas de tolerância nos futuros cruzamentos. Os sintomas de toxicidade de alumínio foram maiores com a elevação da concentração de alumínio e da diminuição das concentrações de sais da solução nutritiva para todos os genótipos estudados.
Twelve bread wheat (Triticum aestivum L.), one durum wheat (Triticum durum L.) and one triticale (Triticosecale sp) genotypes were studied in nutrient solutions with a high salt concentration in experiment 1 and a weak salt concentration in experiment 2, for aluminum tolerance at six levels: 0, 2, 4, 6, 8 and 10 mg L-1, under temperature 25 ± 1ºC and pH 4,0. Four replications were used per experiment. Aluminum tolerance was evaluated by measuring root growth in an aluminum-free complete nutrient solution after a treatment of 48 hours in an aluminum solution associated with a particular salt concentration, according to the experiment. The bread wheats IAC-289, IAC-350 and IAC-370, the durum wheat IAC-1003 and the triticale IAC-5 genotypes were the most sensitive for increasing levels of Al3+in treatment nutrient solutions. Thus, they would be indicated only for cultivation in limed soils. The bread wheat IAC-24 and IAC-378 genotypes and the check cultivar BH-1146 were the most tolerant to Al3+ toxicity, being able to show good performance in acidic soils and/or to be used as genetic sources for tolerance in future crosses. Under constant temperature 25 ± 1ºC and pH 4,0 aluminum toxicity results in inhibition of root growth wich was dependent on the increase of the aluminum concentration or on the reduction of the salt concentration of the nutrient solution for all evaluated genotypes.
Reference Key
camargo2006bragantiatolerncia Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Carlos Eduardo de Oliveira Camargo;João Carlos Felicio;Antonio Wilson Penteado Ferreira Filho;Mary Túlia Vargas Lobato
Journal revista espanola de salud publica
Year 2006
DOI
10.1590/S0006-87052006000100007
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052006000100007
Keywords
triticum aestivum l

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.