Identifying crisphead lettuce genotypes for a wider range of environments

Autor(es)

Dora Enith Tobar-Tosse ^[1] ; Willame dos Santos Candido ^[2] ; Lucas da Silva Santos ^[3] ; Renata Castoldi ^[4] ; Edgar Henrique Costa Silva ^[5] ; Leila Trevisan Braz ^[6]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

^[2] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

^[3] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

^[4] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

^[5] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

^[6] Universidade Estadual Paulista “Julio Mezquita de Filho” - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Ciencia y Tecnología Agropecuaria; v. 23, n. 1 2021-12-31.

Resumo

Abstract This work aims to select crisphead lettuce (Lactuca sativa L) genotypes superior in production, stability, and adaptability using a mixed model method: restricted maximum likelihood/best linear unbiased prediction. Ten genotypes were grown in different municipalities of the State of São Paulo, Brazil, and seasons of the year, resulting in twelve different environments. The experiment has a randomized complete block design with four repetitions. Genotypes comprise eight breeding lines and two commercial cultivars, Vanda and Vera. The evaluated traits include total production in g/plant, commercial production in g/plant, and numbers of leaves/plant. Analysis of joint deviance indicated that the genotypes responded differently to the environments evaluated. The crisphead lettuce breeding lines that were most productive, stable, and adapted to the twelve lettuce-growing environments, even outperforming the commercial Vanda and Vera cultivars, were lines L8, L2, and L6. (AU)

• Processo FAPESP: 12/09705-4 - Monitoramento de raças de Bremia lactucae em alface, avanço de linhagens de alface crespa resistentes e interação genótipo x ambiente
• Beneficiário: Leila Trevisan Braz
• Modalidade de apoio: Auxílio à Pesquisa - Regular