Título:	Physiological performance of sugarcane genotypes under different irrigation levels.
Autoria:	OLIVEIRA, A. R. de SIMOES, W. L. SILVA, J. S. da SANTANA, D. C. TEODORO, L. P. R. OLIVEIRA, J. T. de ALVARES, R. de C. F. TEODORO, P. E.
Afiliação:	ANDERSON RAMOS DE OLIVEIRA, CPATSA; WELSON LIMA SIMOES, CPATSA; JUCICLÉIA SOARES DA SILVA; DTHENIFER CORDEIRO SANTANA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; LARISSA PEREIRA RIBEIRO TEODORO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; JOB TEIXEIRA DE OLIVEIRA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; RITA DE CÁSSIA FÉLIX ALVAREZ, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; PAULO EDUARDO TEODORO, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL.
Ano de publicação:	2026
Referência:	Acta Agronómica, v. 73, n. 4, p 440-437, 2024.
Conteúdo:	Developing and selecting genotypes that are responsive or tolerant to variations in water availability is essential for sugarcane production. The aim of this study was to evaluate the performance of 32 sugarcane genotypes under different water conditions. The responses of physiological variables as a function of different irrigation levels were evaluated. The experiment used a Randomized Complete Block Design (RCBD) in a split-plot arrangement. Four irrigation levels (20 %, 40 %, 60 %, and 100% of crop evapotranspiration) were allocated to main plots, and the subplots were represented by 32 genotypes belonging to different genera and species. The evaluated physiological variables of the plants were photosynthesis rate (A), stomatal conductance (gs), quantum yield of CO2 assimilation (PhiCO2), and transpiration rate (E). Leaf vapor pressure deficit (VpdL) was estimated based on leaf temperature. The results revealed that genotypes 10, 26, and 29 consistently maintained high physiological performance across all irrigation levels, whereas genotype 7 showed notable resilience under water deficit. These genotypes are identified as promising candidates for cultivation under water-limited conditions and may support the selection of efficient, drought-tolerant material for semi-arid regions.
Thesagro:	Cana de Açúcar Saccharum Officinarum Evapotranspiração Genótipo
NAL Thesaurus:	Evapotranspiration Sugarcane
Palavras-chave:	Déficit hídrico Analisador de gases por infravermelho
Digital Object Identifier:	https://doi.org/10.15446/acag.v73n4.120465
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)