Data/hora: 10/06/2024 13:59:28

Provedor de dados: | 65
País: | Brazil
Título: | Stay-green character and its contribution in Brazilian wheats
Autores: | Luche,Henrique de Souza; Silva,José Antônio Gonzalez da; Nornberg,Rafael; Hawerroth,Maraisa Crestani; Silveira,Solange Ferreira da Silveira; Caetano,Vanderlei da Rosa; Santos,Rodrigo Lisboa; Figueiredo,Ricardo Garcia; Maia,Luciano Carlos da; Oliveira,Antônio Costa de.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Triticum aestivum; Delayed senescence; Correlation; Path analysis.
Resumo: | ABSTRACT: The stay-green character has been related to greater stress tolerance and yield through longer activity of the photosynthetic apparatus. Association of this character with grain yield may be linked to a network of features other than the grain mass. This study aimed to shed light on the actual contribution of stay-green character in Brazilian wheats and the associations between grain yield components in different environmental conditions. The experiment was conducted in a randomized block design with three replications in the years 2003, 2004 and 2005. Sibling lines with and without the stay-green character were evaluated analyzing the phenotypic correlation and path analysis separately by year and maturity group. Under favorable growing conditions, the contribution of stay-green character in wheat is obtained by the increased ear fertility and number of grains. In a more restrictive scenario, it favors an increase in grain mass by longer filling time at the end of the cycle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100204
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160583
Formato: | text/html
Fonte: | Ciência Rural  v.47 n.1 2017
Fonte: | info:eu-repo/semantics/openAccess