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Ciência Rural
ISSN: 0103-8478
[email protected]
Universidade Federal de Santa Maria
Brasil
Marchioro, Volmir Sergio; Carvalho Irajá Félix de, Fernando; Oliveira Costa de, Antônio;
Lorencetti, Claudir; Benin, Giovani; Silva González da, José Antônio; Cargnin, Adeliano;
Simioni, Daniel
Expressão do fenótipo em populações segregantes de aveia conduzidas em diferentes
ambientes
Ciência Rural, vol. 33, núm. 4, julho-agosto, 2003, pp. 651-656
Universidade Federal de Santa Maria
Santa Maria, Brasil
Available in: http://www.redalyc.org/articulo.oa?id=33133410
Abstract
Selection on the phenotype basis can be affected by environmental factors; forcing the plant-breeder to isolate genetic and
environmental factors. The objective of this work was to evaluate the yield components of oat segregant populations subjected to
different methods. Eight populations were planted in random block design with two replicates, according to three different models:
spaced plant, full line and hill. Panicles with weight higher than mean plus one standard deviation were selected and measured for
grain weight and grain number per panicle. Results showed a significant interaction between populations and environmental
factors. Heritability was high, excepted for grain number/panicle on the full line models. Panicle weight can be an efficient trait to
select genotypes in order to order increase grain yield.
Keywords
Avena sativa L., sowing methods, heritability.
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