Data/hora: 09/06/2024 04:17:45

Provedor de dados: 	Ciência e Agrotecnologia	
País: 	Brazil	
Título: 	Contribution of nitrogen derived from mineral supplementation for soybean seedlings	
Autores: 	Conceição,Gerusa Massuquini; Martin,Thomas Newton; Brunetto,Gustavo; Backes,Rogério Luiz; Andrade,Fabrício Fuzzer de; Beche,Manoela.	
Data: 	2018-02-01	
Ano: 	2018	
Palavras-chave: 	Glycine max (L.) Merrill; Absorption; Distribution; 15N.	
Resumo: 	ABSTRACT Seeds can absorb N from mineral supplementation, thus stimulating seedling development in soybeans (Glycine max (L.) Merrill). This study aimed to evaluate the contribution to soybean seedlings of N derived from mineral supplementation in seeds with different nutritional contents. Seeds of the cultivar BMX Potência RR received mineral supplementation enriched with 2.5% excess 15N. The treatments were performed in seeds in two lots, one with high and one with low nutritional content. At 2, 6 and 10 days after sowing on paper towels, the seedlings were collected and separated into cotyledons, roots and shoots. Dry matter production, root length and root volume were assessed. Total N and 15N values were analyzed in the seedling organ tissues. The seeds from the lot with lower nutritional content absorbed more N from the mineral supplement, which was accumulated in the cotyledons and redistributed to the root systems and cotyledons. At 10 days after sowing, most of the N in the organs of soybean seedlings was derived from the seed reserves, regardless of nutritional content. Thus, application of N through mineral supplementation is of low importance for the development and nutrition of seedlings.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000100033	
Editor: 	Editora da Universidade Federal de Lavras	
Relação: 	10.1590/1413-70542018421010617	
Formato: 	text/html	
Fonte: 	Ciência e Agrotecnologia  v.42 n.1 2018	
Fonte: 	info:eu-repo/semantics/openAccess