Data/hora: 02/06/2024 08:21:23

Provedor de dados: | Scientia Agricola
País: | Brazil
Título: | Genetic variability for carotenoid content of grains in a composite maize population
Autores: | Kist,Volmir; Albino,Vanessa Stainbach; Maraschin,Marcelo; Ogliari,Juliana Bernardi.
Data: | 2014-12-01
Ano: | 2014
Palavras-chave: | Biofortified food; Convergent-divergent selection; Genetic-statistical parameters; Genotype by environment interaction.
Resumo: | Local maize (Zea mays L.) varieties are cultivated by small-scale farmers in western Santa Catarina (SC) State, in southern Brazil. These small areas frequently present many problems related to biotic and non-biotic stresses, which have limited the economic output and income of the farmers. Production from local varieties for human consumption would be an alternative way of improving income and stimulating on farm conservation. The genetic variability of the total carotenoid content (TCC) of kernels in a local maize population was evaluated for their economic exploitation potential as biofortified food. Two independent samples of 96 half-sib families (HSF) plus four checks were evaluated in two groups of experiments in western SC and each one was carried out in two environments. They were set out in a 10 × 10 partially balanced lattice with three replications per location; plots consisted of one row, 5.0 m long with 1.0 m between rows. TCC ranged from 11 to 23 µg g-1, averaging ≈16 µg g-1 in the pooled analysis over the two sets. The local composite population exhibited genetic variability in order to increase the TCC of grains in the second cycle of selection by the convergent-divergent scheme.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000600006
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/0103-9016-2013-0069
Formato: | text/html
Fonte: | Scientia Agricola  v.71 n.6 2014
Fonte: | info:eu-repo/semantics/openAccess