Data/hora: 14/06/2024 10:14:14

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 17/07/2009
Data da última atualização: | 11/11/2010
Autoria: | CRESTANI, M.; SILVA, J. A. G. da; SOUZA, V. Q. de; HARTWIG, I.; LUCHE, H. de S.; SOUSA, R. O. de; CARVALHO, F. I. F. de; OLIVEIRA, A. C. de.
Afiliação: | MARAISA CRESTANI, FAEM/UFPEL; JOSÉ ANTONIO GONZALEZ DA SILVA, UNIJUÍ; VELCI QUEIROZ DE SOUZA, UFSM; IRINEU HARTWIG, Syngenta Seeds Ltda; HENRIQUE DE SOUZA LUCHE, FAEM/UFPEL; ROGÉRIO OLIVEIRA DE SOUSA, FAEM/UFPEL; FERNANDO IRAJÁ FÉLIX DE CARVALHO, FAEM/UFPEL; ANTONIO COSTA DE OLIVEIRA, FAEM/UFPEL.
Título: | Irrigated rice genotype performance under excess Iron stressin hydroponic culture.
Ano de publicação: | 2009
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 9, n. 1, p. 87-95, Mar. 2009.
Idioma: | Inglês
Conteúdo: | Iron stress is a major stress factor in irrigated rice. The complete mechanism underlying iron metabolism and transportis still unknown. Irrigated rice (Oryza sativa L.) cultivars were exposed to Pe2+stress in hydroponic conditions, aiming to assess genotype performance under stress as well as to develop aprotocol for genotype selection. The experimental design was completely randomized, using a triple factorial scheme 2 x 5 x 6 (time x dose x genotype). The trait shoot length and nine days under stress were favorable for genotype discrimination under iron stress. The genotypes BR IRGA 409 and BRS AGRISUL were, respectively, the most sensitive and tolerant genotypes to iron stress. According to the genotype performance, hydroponics can be recommended as an efficient cultivation technique for the selection of iron stress-tolerant rice genotypes.
Palavras-Chave: | Caracteres de plântula; Condições controladas; Condições de hidroponia; Estresse por ferro; Fe2+; Genótipos de arroz irrigado; Olyza sativa L.
Thesagro: | Agricultura; Biotecnologia; Genética.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (13429-1) - ADD - AP - PP -  -  -  - DIS