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Adaptability and stability of sweet sorghum cultivars

Author(s): Vander Fillipe de Souza | Rafael Augusto da Costa Parrella | Flávio Dessaune Tardin | Márcia Regina Costa | Geraldo Afonso de Carvalho Júnior | Robert Eugene Schaffert

Journal: Crop Breeding and Applied Biotechnology
ISSN 1518-7853

Volume: 13;
Issue: 2;
Start page: 144;
Date: 2013;
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Keywords: Sorghum bicolor | genotype x environment interaction | Annicchiarico | biofuel | ethanol.

The objective of this study was to evaluate the phenotypic stability and adaptability of 25 sweet sorghum cultivars of EmbrapaMaize and Sorghum. The experiments were conducted in five Brazilian environments, three in the state of Minas Gerais, and theothers in Sinop, Mato Grosso and Pelotas, Rio Grande do Sul. Fresh biomass yield (FBY), and total soluble solids (TSS) of the juicewere evaluated in a randomized complete block design with three replications. Analysis of variance showed significant genotype byenvironment interaction for both traits. According to the Annicchiarico methodology analysis, genotypes CMSXS634, BRS506, andCMSXS646 were the most stable and adapted for FBY and TSS concomitantly; CMSXS634 being more adapted to favorable environmentsand CMSXS646 being more adapted to unfavorable environments.
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