Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132227
Título: Production and biochemical responses of cowpea under thermal and water stress.
Autoria: BARROS, J. R. A.
GUIMARÃES, M. J. M
SILVA, R. M. e
SIMOES, W. L.
MELO, N. F. de
ANGELOTTI, F.
Afiliação: JULIANE RAFAELE ALVES BARROS, Universidade Estadual de Feira de Santana, Feira de Santana, BA; MIGUEL JÚLIO MACHADO GUIMARÃES, Instituto Federal de Educação, Ciência e Tecnologia do Maranhão, São Raimundo das Mangabeiras, MA; RODRIGO MOURA E SILVA, Universidade de Pernambuco, Petrolina, PE; WELSON LIMA SIMOES, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; FRANCISLENE ANGELOTTI, CPATSA.
Ano de publicação: 2021
Referência: Revista Brasileira de Ciências Agrárias, v. 16, n.2, e8599, 2021.
Conteúdo: Water deficit and high temperature limit agricultural productivity, affecting plant growth, development, and metabolism. Thus, the objective of this study was to evaluate the impact of the interaction between water deficit and temperature increase on cowpea production. The experiment was carried out with the cultivar BRS Rouxinol, in growth chambers, in a 4 × 2 factorial arrangement, being four soil water availability (25; 50; 75 and 100% of field capacity) and two daily temperature regimes (T°1: 20-26-33 °C and T°2: 24.8-30.8-37.8 °C). The increase in water availability favored an increase in shoot and root dry mass. The vegetative stage was prolonged in plants maintained at a temperature regime of 24.8-30.8-37.8 °C. The cowpea yield increased with higher water availability. The water availability of 90% was the one that provided the highest water use efficiency. The 4.8°C increase in air temperature promotes an increase in oxidative stress with lack of synchrony in the antioxidative defense system. The cultivar Rouxinol is sensitive to the increase in air temperature and water deficit. However, even with 100% water availability, there was no seed production with an increase in air temperature.
Thesagro: Feijão
Temperatura
Potencial Hídrico
NAL Thesaurus: Cowpeas
Abiotic stress
Heat stress
Heat stress disorders
Grain yield
Oxidative stress
Soil water deficit
Palavras-chave: Estresse abiótico
Estresse por calor
Produção de grãos
Estresse oxidativo
Vigna unguiculada
Feijão caupi
Déficit hídrico
ISSN: 1981-0997
Digital Object Identifier: 10.5039/agraria.v16i2a8599
Tipo do material: Artigo de periódico
Acesso: openAccess
Aparece nas coleções:Artigo em periódico indexado (CPATSA)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Production-and-biochemical-responses-2021.pdf1,25 MBAdobe PDFThumbnail
Visualizar/Abrir

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace