Per se performance and genetic parameters of wheat lines expressing the “stay‑green” character

• Autor(a) principal: Luche, Henrique de Souza
• Data de Publicação: 2013
• Outros Autores: Silva, José Antonio Gonzalez da, Nörnberg, Rafael, Silveira, Solange Ferreira Silveira da, Baretta, Diego, Groli, Eder Licieri, Maia, Luciano Carlos da, Oliveira, Antonio Costa de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/12703
• topic: Triticum aestivum; stability; herdability; delayed senescence.; Triticum aestivum; estabilidade; herdabilidade; senescência retardada.

The objective of this work was to determine the per se performance and the genetic parameters of traits of interest in wheat inbred lines expressing or not the “stay‑green” character. The experiment was carried out in 2003, 2004, and 2005 in a randomized complete block design with three replicates. Thirty‑two sister‑lines of wheat, 15 with and 17 without the stay‑green character, were evaluated. The lines carrying this character showed higher grain yield, higher average number of kernels per ear, and lower weight of a thousand grains. Moreover, grain yield and grain mass heritabilities were higher in these lines, which reveled lower influence of environmental variation on the expression of these characters. The “stay‑green” character contributes to increase productivity and productive stability of wheat.