Data/hora: 02/06/2024 06:51:18

Provedor de dados: | 1
País: | Brazil
Título: | Evaluation of grain sorghum hybrids for aluminum tolerance in nutrient solution
Autores: | Menezes, Cicero Beserra de; Lima, Geisiane Matos; Marucci, Rosangela Cristina; Bernardino, Karine Costa; Santos, Crislene Vieira dos; Julio, Marcos Paulo Mingote; Schaffert, Robert Eugene.
Data: | 2018-03-01
Ano: | 2018
Palavras-chave: | Sorghum bicolor; Abiotic stress; Soil acidity; Plant breeding.; Melhoramento Vegetal.
Resumo: | Sorghum (Sorghum bicolor L. Moench) is one of the most important cereal crops in the world. In Brazil, the acreage of grain sorghum during off-season is quite expansive. Most of this area is the Cerrado, a Brazilian biome that is similar to a Savannah and is characterized by high acidity and soluble aluminum at toxic levels for plants. The aluminum acts as a limiting factor in achieving high yields. The purpose of this work was to phenotype sorghum hybrids for aluminum tolerance. Eighteen hybrids were evaluated in a nutrient solution containing {0} or {27} µM Al3+. The work was carried out in a growth chamber at the Embrapa Maize and Sorghum, from April 4 to May 30, 2014. The lines ATF 13B (susceptible) and ATF 14B (tolerant) were used as check cultivars. Based on the Net Root Growth after 120 hours (NRG120), Net Root Growth (NRG168) after 168 hours and Relative Net Root Growth after 168 hours (RNRG168), it was possible to distinguish tolerant hybrids from susceptible ones.  The high aluminum saturation reduced root growth by 70%. The hybrids BRS 310 and BRS 373 were tolerant to aluminum stress under nutrient solution. The hybrid BRS 330 was clustered in an intermediate group, with an approximately 50% root growth reduction. The other hybrids were susceptible with significant root reduction.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35304

10.4025/actasciagron.v40i1.35304

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35304/pdf
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; Vol 40 (2018): Publicação Contínua; e35304

Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e35304

1807-8621

1679-9275

Fonte: | Copyright (c) 2018 Acta Scientiarum. Agronomy