Divergência genética e descarte de variáveis em alface cultivada sob sistema hidropônico - DOI: 10.4025/actasciagron.v26i2.1894

Antonio Carlos Baião de Oliveira; Maria Aparecida Nogueira Sediyama; Marinalva Woods Pedrosa; Neusa Catarina Pinheiro Garcia; Silvana Lages Ribeiro Garcia

doi:10.4025/actasciagron.v26i2.1894

Genetic divergence and discard of variables in lettuce cultivated under hydroponic system - DOI: 10.4025/actasciagron.v26i2.1894

Antonio Carlos Baião de Oliveira Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG)
Maria Aparecida Nogueira Sediyama EPAMIG-CTZM
Marinalva Woods Pedrosa EPAMIG-CTZM
Neusa Catarina Pinheiro Garcia EPAMIG-CTZM
Silvana Lages Ribeiro Garcia EPAMIG-CTZM

DOI: https://doi.org/10.4025/actasciagron.v26i2.1894

Abstract

It was studied the genetic variability of 17 lettuce cultivars, types Butter, Crisp and Iceberg, according to agronomic traits and multivariate procedures. It aims to select divergent cultivars with better performance designed to hydroponic system culture. The importance of the traits for divergence was, also, evaluated by the sequential discards of the variables, according its relative contributions. The trial was carry out in greenhouse, Epamig, Viçosa-MG, in summer of 1999, using randomized blocks with three replicates. Six plants were harvested 46 days after the sowing, and evaluated in ten traits related to the yield. The data were analyzed by Tocher, single linkage, and canonical variables grouping methods. The Mimosa, Brisa, Regina, Monalisa and OGR are the most appropriated cultivars to integrate in specific crossings programs for hydroponic culture. They were more genetically divergent and had good agronomic qualities. Some traits did not affect the original grouping, so they could be eliminated in future studies of lettuce genetic divergence

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Author Biography

Antonio Carlos Baião de Oliveira, Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG)

Possui graduação em Agronomia pela Universidade Federal de Viçosa (1984), mestrado em Genética e Melhoramento pela Universidade Federal de Viçosa (1991) e doutorado em Genética e Melhoramento pela Universidade Federal de Viçosa (1996). Atualmente é pesquisador da Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG). Tem experiência na área de Agronomia, com ênfase em Melhoramento Genético do Cafeeiro, atuando principalmente nos seguintes temas: resistência a doenças, qualidade da bebida e biotecnologia aplicada ao melhoramento do cafeeiro. http://lattes.cnpq.br/0865337087680269

PDF (Português (Brasil))

Published

2008-04-11

How to Cite

Oliveira, A. C. B. de, Sediyama, M. A. N., Pedrosa, M. W., Garcia, N. C. P., & Garcia, S. L. R. (2008). Genetic divergence and discard of variables in lettuce cultivated under hydroponic system - DOI: 10.4025/actasciagron.v26i2.1894. Acta Scientiarum. Agronomy, 26(2), 211-217. https://doi.org/10.4025/actasciagron.v26i2.1894

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Issue

Vol 26 No 2 (2004)

Section

Agronomy

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