Data/hora: 09/06/2024 06:21:46

Provedor de dados: 	Acta Scientiarum: Biological Sciences	
País: 	Brazil	
Título: 	Lanthanum content and effects on growth, gas exchanges, and chlorophyll index in maize plants	
Autores: 	Duarte, Ana Carolina Oliveira; Oliveira, Cynthia de; Ramos, Sílvio Júnio; Castro, Evaristo Mauro de; Siqueira, José Oswaldo; Guilherme, Luiz Roberto Guimarães.	
Data: 	2018-07-01	
Ano: 	2018	
Palavras-chave: 	Ciências Agrárias crops; Photosynthesis; Rare earth elements; Zea mays. Produção Vegetal.	
Resumo: 	Rare earth elements, such as lanthanum (La), have been applied to agriculture via fertilizers, aiming to increase the productivity and crop quality, such results observed mainly in China. However, the knowledge about the effect of La on maize growth, as well as for other species, despite the growing interest it is still limited. The aim of this study was to evaluate the effects of La on maize growth, La content, photosynthetic rate and chlorophyll content in maize plants in response to La treatment (0, 25, 50, 100, 150, 300 and 600 μM) in nutrient solution for three weeks. The plants were placed in geminated pots using a split-root technique. One of the pots in the geminated set was filled with a complete nutrient solution without La, while another was filled with a nutrient solution without phosphorus but containing different concentrations of La. It was verified that roots of maize plants can accumulate approximately sixty percent more La than shoots. Moreover, low La concentrations stimulated an increase in chlorophyll index, resulting in a slight increase in shoot biomass. At higher levels, La didn’t reduce growth but caused a decrease in both photosynthetic rate and chlorophyll index. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/38469

10.4025/actascibiolsci.v40i1.38469	
Editor: 	Universidade Estadual De Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/38469/pdf	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e38469

Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e38469

1807-863X

1679-9283	
Fonte: 	Direitos autorais 2018 Acta Scientiarum. Biological Sciences

http://creativecommons.org/licenses/by/4.0