Data/hora: 28/05/2024 03:53:02

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 06/04/2000
Data da última atualização: | 11/09/2014
Autoria: | ALVES, A. A. C.; SETTER, T. L.
Afiliação: | EMBRAPA, Cassava and Fruit Crops Unit, Caixa Cruz das Almas Bahia, Brazil, Dep. of Soil, Crop and Atmospheric Sciences, Cornell University, Bradfied Hall, Ithaca, Contribution form the Dep. of soil, Crop ...
Título: | Response of cassava to water deficit: leaf area growth and abscisic acid.
Ano de publicação: | 2000
Fonte/Imprenta: | Crop Science, v.40, n.1, p.131-137, 2000.
Idioma: | Inglês
Conteúdo: | Cassava (Manihot esculenta Crantz) responds to decreases in water status by pronounced stomatal closure and decreased leaf area growth. Many water deficit responses are thought to be regulated by abscisic acid (ABA). To evaluate the extent to which ABA accumulated in a temporal pattern related to water deficit and leaf area growth, five cassava genotypes were grown in greenhouse conditions and subjected to water deficit and recovery treatments during the vegetaitve-growth stage. Young and nature leaves were sampled for analysis of area growth and ABA. Under water deficit, leaves from all genotypes rapidly accumulated large amounts of ABA in both mature and young leaves. Correspondingly, young leaves halted leaf expansion growth and tranpiration rate decreased.
Thesaurus Nal: | cassava.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17777-1) - ADD - SP - -- - S11826 -  - S11826 - DIS