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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Evaluation of lignin content of soybean seed coat stored in a controlled environment.
Autores:  KRZYZANOWSKI, F. C.
FRANCA NETO, J. de B.
MANDARINO, J. M. G.
Data:  2008-09-30
Ano:  2008
Palavras-chave:  Lignina
Lignin
Plant breeding
Seed quality
Seed storage
Gliycine max
Melhoramento de plantas
Qualidade de semente
Armazenamento
Resumo:  Breeding soybean for high seed quality is an important approach for developing cultivars for tropical regions, and the lignin content in the seed coat is one of the screening parameters for this trait. Considering that many breeding lines are evaluated in each growing season using the presently recommended method for lignin determination, a long period is required for the evaluation of the whole breeding program. This time limitation may influence lignin content assessment, if lignin is degraded during storage. This research reported was designed to determine whether lignin was degraded in the seed coat of soybean seed cultivars stored for one year in a controlled environment (10º C temperature and 50% air relative humidity). Seeds of 12 selected soybean cultivars that had a range in seed coat lignin content were evaluated. Seeds were hand harvested just after physiological maturity and evaluated for seed coat lignin content at harvest and after one year of storage in a cold roam (10°C and 50% RH). The lignin content in seed coats differed significantly among cultivars in both analyses, but for both results the sequence of cultivar classification and the lignin content values of each cultivar did not change. A regression analysis of lignin content at harvest and after one year of storage indicated a direct relationship between both lignin determinations suggesting no differences between the lignin content of each cultivar due to prolonged storage (r" = 0.98***). This indicates that the lignin determination in the soybean seed coat can be performed over a long time period without any bias due to change in its content.

2008
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  28568

http://www.alice.cnptia.embrapa.br/handle/doc/470918

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/42920/1/28568.pdf
Editor:  Revista Brasileira de Sementes, Pelotas, v. 30, n. 2, p. 220-223, 2008.
Relação:  Embrapa Soja - Artigo em periódico indexado (ALICE)
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