| Registro completo |
| 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
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
