Stability and adaptability of curled green-leaf lettuce lines using the REML/Blup mixed model

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Data

2018-03-01

Autores

Candido, Willame dos Santos
Soares, Renato Silva [UNESP]
Franco, Carolina Andrade [UNESP]
Martins Diniz, Guilherme Matos [UNESP]
Costa Silva, Edgard Henrique [UNESP]
Marin, Marcus Vinicius [UNESP]
Braz, Leila Trevisan [UNESP]

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Editor

Empresa Brasil Pesq Agropec

Resumo

The objective of this work was to estimate the stability and genotypic adaptability of advanced lines and cultivars of curled green-leaf lettuce (Lactuca sativa), in different growing environments and seasons, using the REML/Blup mixed model. Ten genotypes, seven cropping environments, and two growing seasons were studied in 2015. Plant yield traits were evaluated, and data were subjected to the Selegen-REML/Blup software. Genotype stability and adaptability were analyzed using the harmonic mean of genotypic values (HMGV) and the relative performance of genotypic values (RPGV), respectively. The harmonic mean of RPGV (HMRPGV) was used to simultaneously estimate the stability, adaptability, and yield of breeding lines or cultivars. Considering the combined analysis of the two seasons for the set of traits, the lines L-6, L-7, and L-8 were selected as promising ones and recommended for planting. The breeding lines selected for all season exhibit good yield and are considered superior to the commercial cultivars Vanda and Vera.

Descrição

Palavras-chave

Lactuca sativa, cropping systems, HMRPGV, mixed models

Como citar

Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 53, n. 3, p. 298-306, 2018.