Title:	Water and radiation use efficiencies by Erythrina velutina and Enterolobium contortisiliquum under different water conditions.
Authors:	ARAÚJO, Y. P. de SOUZA, L. S. B. de SILVA, T. G. F. da MOURA, M. S. B. de
Affiliation:	Yara Panta de Araújo; Luciana Sandra Bastos de Souza; Thieres George Freire da Silva; MAGNA SOELMA BESERRA DE MOURA, CPATSA.
Date Issued:	2021
Citation:	Floresta e Ambiente, v. 28, n. 1, e20190080, 2021.
Description:	This study investigated the water and radiation use efficiencies by Erythrina velutina and Enterolobium contortisiliquum under four water regimes. The experiment was carried out in the municipality of Serra Talhada, PE, Brazil. The experimental design was completely randomized with a 2 x 4 factorial arrangement and three replications. The water regimes were imposed from water replenishments based on the reference evapotranspiration (25, 50, 75 and 100% ET0). Water and radiation use efficiencies were calculated to the 120 days of growth. E. velutina showed a greater accumulated dry biomass (4.89 g pl-1) than E. contortisiliquum (2.22 g pl-1). The 75% ET0 water regime can be adopted without damage to the growth of both species. E. velutina was more efficient in the conversion of water (0.42 g l-1) and radiation in dry biomass (0.028 g MJ-1), indicating high environmental resilience, which is important features to choose species more adequate for reforestation activities.
Thesagro:	Água Enterolobium Contortisiliquum Caatinga Biomassa
NAL Thesaurus:	Water utilization Water resources Water Water balance
Keywords:	Uso de água Eficiência do uso da radiação
DOI:	https://doi.org/10.1590/2179-8087-FLORAM-2019-0080
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPATSA)