Breeding new sugarcane clones by mixed models under genotype by environmental interaction.

• Autor(a) principal: GONÇALVES, G. M.
• Data de Publicação: 2014
• Outros Autores: VIANA, A. P., AMARAL JUNIOR, A. T. do, RESENDE, M. D. V. de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/984456
• topic: Melhoramento genético; Modelo misto; Mixed models; Cana de Açúcar; Clone; Saccharum; sugarcane

Sugarcane (Saccharumspp.) is one of the most important crops cultivated in the tropics and subtropics and plays a signifi cant economic and environmental role in Brazil. Twenty- four new clones were evaluated in different locations as potential models for recommendation as new varieties. The mixed model methodology, using the harmonic mean of the relative per- formance of genetic values (MHPRVG), facilitated the analysis of genotypic stability and adapt- ability, culminating in the recommendation of clones for each location. MHPRVG ranked clones RB92579, RB867515, SP81-3250, RB947520 and RB931530 as the best fi ve, and, addition- ally, clones with greater genotypic potential were identifi ed for each test in the six localities.