Data/hora: 10/06/2024 03:34:15

Provedor de dados: | 52
País: | Brazil
Título: | Morpho-anatomical and micromorphometrical evaluations in soybean genotypes during water stress
Autores: | Stolf,Renata; Medri,Moacyr Eurípedes; Pimenta,José Antônio; Boeger,Maria Regina Torres; Dias,Jaqueline; Lemos,Noélle Giacomini; Oliveira,Maria Cristina Neves de; Brogin,Rodrigo Luís; Yamanaka,Naoki; Neumaier,Norman; Farias,José Renato Bouça; Nepomuceno,Alexandre Lima.
Data: | 2009-12-01
Ano: | 2009
Palavras-chave: | Anatomy; Leguminous; Drought; Root.
Resumo: | In a greenhouse experiment, morpho-anatomical and micromorphometrical analyses of two soybean cultivars, MG/BR46 (Conquista) and BR16-tolerant and sensitive to drought, respectively-were used to study their water-deficit-tolerance strategies. Drought treatments were applied at reproductive stages from R2 to R7, where evaluations were conducted at 30 days and 45 days after stress started, respectively. The total length of Conquista plants (shoot + root) was greater than of BR16 plants. Pod dry weight was adversely affected due to the lack of moisture, decreasing productivity even of Conquista plants. Both the cultivars had normal development of root hairs; however, it was observed a decrease in the cortex:central cylinder ratio in BR16 stressed for 30 days, and they also showed similar leaflet thickness and stomata distribution. Differences in drought tolerance observed between the two cultivars seemed to be related to factors other than morphological traits since this species has a short lifecycle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600002
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132009000600002
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.52 n.6 2009
Fonte: | info:eu-repo/semantics/openAccess