Title:	Genotypic variability of peanut lines in response to water stress, based on biochemical descriptors.
Authors:	ALVES, G. M. R. PEREIRA, J. W. de L. LUZ, L. N. da LIMA, L. M. de SANTOS, R. C. dos
Affiliation:	GERCKSON MACIEL RODRIGUES ALVES, UEPB; JACQUELINE WANESSA de LIMA PEREIRA, UFRPE; LUCAS NUNES DA LUZ, UNILAB; LIZIANE MARIA DE LIMA, CNPA; ROSEANE CAVALCANTI DOS SANTOS, CNPA.
Date Issued:	2016
Citation:	Revista Caatinga, v. 29, n. 3, p. 528-536, jul./set. 2016.
Description:	Seven biochemical descriptors were used to estimate the genotypic variability of peanut in response to moderate water stress. Six genotypes, constituted by four lines and two cultivars, were grown in pots, each containing two plants. At 15 days after emergence (DAE), the treatment differentiation was carried out: Control-plants maintained with daily watering, and Stress-plants submitted to water stress by complete suspension of watering for 15 days. The experimental design was completely randomized with factorial scheme 6 x 2 (genotype x water treatments), with five replications. The biochemical variables evaluated were: catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), free proline, total carbohydrates, soluble proteins, and amino acids. Results obtained by biochemical analysis and estimation of genotypic variability indicated that proline is the most appropriate descriptor for selecting genotypes tolerant to water stress, which led to identification of L81V and L108V as promising lines for drought tolerance breeding program.
Thesagro:	Arachis hypogaea Amendoim
NAL Thesaurus:	Peanuts
Keywords:	Estresse hídrico Enzima antioxidativa
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPA)