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Seeding density in wheat: the more, the merrier?
Pirez Valério, Igor; Irajá Félix de Carvalho, Fernando; Benin, Giovani; da Silveira, Gustavo; Antonio Gonzalez da Silva, José; Nornberg, Rafael; Hagemann, Thais; de Souza Luche, Henrique; Costa de Oliveira, Antônio.
Afiliação
  • Pirez Valério, Igor; UFPEL FAEM CGF.
  • Irajá Félix de Carvalho, Fernando; UFPEL FAEM CGF.
  • Benin, Giovani; UTFPR.
  • da Silveira, Gustavo; UFPEL FAEM CGF.
  • Antonio Gonzalez da Silva, José; UNIJUI Depto. de Estudos Agrários.
  • Nornberg, Rafael; UFPEL FAEM CGF.
  • Hagemann, Thais; UFPEL FAEM CGF.
  • de Souza Luche, Henrique; UFPEL FAEM CGF.
  • Costa de Oliveira, Antônio; UFPEL FAEM CGF.
Sci. agric ; 70(3)2013.
Article em En | LILACS-Express | VETINDEX | ID: biblio-1497339
Biblioteca responsável: BR68.1
ABSTRACT
Adjustment of seeding schemes is one of the crop management techniques that most influences grain yield components. This work aimed to characterize the potential grain yield and its components in wheat (Triticum aestivum L.) genotypes with contrasting tillering ability under different seeding densities and environments. Five experiments were conducted in split-plot design, each with ten cultivars (main plot), sown in five distinct seeding densities (subplots). Experiments were sown in three locations in southern Brazil in the years 2005, 2006 and 2007. The grain yield per plot and its yield components number of fertile tillers, weight of 1,000 grains, ear weight and number of grains per ear were evaluated. Genotypes with reduced tillering ability expressed an increase in grain yield with an increase in seeding densities, however showing a reduction in ear weight. The number of grains per ear did not affect grain yield but was highly influenced by seeding densities. The compensatory effect was expressed by the weight of a thousand grains as a function of the experimental conditions in which the genotypes were evaluated, regardless of seeding densities used. Results pointed to differences among cultivars tested in specific locations and years.
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Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Sci. agric Ano de publicação: 2013 Tipo de documento: Article
Texto completo: 1 Base de dados: VETINDEX Idioma: En Revista: Sci. agric Ano de publicação: 2013 Tipo de documento: Article