Tolerance to preharvest sprouting and yield of wheat genotypes from different breeding programs

Pesquisa Agropecuária Brasileira

Rafael Nörnberg¹  José Antonio Gonzalez Da Silva¹  Henrique De Souza Luche¹  Elisane Weber Tessmann¹  Sydney Antonio Frehner Kavalco¹  Cristiano Mathias Zimmer¹  Diego Baretta¹  Luciano Carlos Da Maia¹  Antonio Costa De Oliveira¹ 

关键词: Triticum aestivum. ear sprouting;    falling number;    genetic divergence;    parental selection.;    Triticum aestivum;    germinação na espiga;    número de queda;    divergência genética;    seleção de parentais.;   

DOI  :  10.1590/S0100-204X2015000800008

来源: SciELO

【 摘 要 】

Abstract:The objective of this work was to characterize the performance of elite wheat genotypes from different Brazilian breeding programs for traits associated with grain yield and preharvest sprouting. The study was conducted in 2010 and 2011 in the municipality of Capão do Leão, in the state of Rio Grande do Sul, Brazil, in a randomized complete block design with three replicates. Thirty-three wheat genotypes were evaluated for traits related to preharvest sprouting and grain yield. The estimate of genetic distance was used to predict potential combinations for selection of plants with high grain yield and tolerance to preharvest sprouting. The combined analysis of sprouted grains and falling number shows that the TBIO Alvorada, TBIO Mestre, Frontana, Fundacep Raízes, Fundacep Cristalino, and BRS Guamirim genotypes are tolerant to preharvest sprouting. Combinations of TBIO Alvorada and TBIO Mestre with Fundacep Cristalino show high potential for recovering superior genotypes for high grain yield and tolerance to preharvest sprouting.

【 授权许可】

CC BY   
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