Document Type
Article
Publication Date
1-1-2012
Abstract
The objective of this study was to quantify the genetic gain for grain yield of the breeding program of irrigated rice in Minas Gerais State, Brazil, in the period of 1998 to 2010. For this, data from advanced comparative trials performed in four different sites of Minas Gerais were analyzed. Some sites were not included in all crop years and thus a mixed model methodology was used to obtain more accurate estimates. The genetic gain for grain yield over the period was 107.42 kg ha-1, which represented a proportion of 17.88% of the total progress estimative. This gain corresponds to an increase of 8.95 kg ha-1 yr-1 or even a 1.99% increase in grain productivity per year. Although the genetic gain has been satisfactory, new alternatives may be applied to improve the rice yield in coming years.
Publication Source (Journal or Book title)
Bragantia
First Page
460
Last Page
466
Recommended Citation
DoVale, J., Soares, P., Cornélio, V., Reis, M., Borges, V., Bisi, R., Soares, A., & Fritsche-Neto, R. (2012). Genetic contribution in yield of irrigated rice in Minas Gerais State between 1998 and 2010. Bragantia, 71 (4), 460-466. https://doi.org/10.1590/S0006-87052012000400002