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

2014; UNIVERSIDADE DE SÃO PAULO; Volume: 71; Issue: 1 Linguagem: Inglês

10.1590/s0103-90162014000100009

1678-992X

Gustavo Menezes Gonçalves, Alexandre Pio Viana, Antônio Teixeira do Amaral Júnior, Marcos Deon Vilela de Resende,

Natural Products and Biological Research

Sugarcane (Saccharum spp.) is one of the most important crops cultivated in the tropics and subtropics and plays a significant economic and environmental role in Brazil. Twentyfour 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 performance of genetic values (MHPRVG), facilitated the analysis of genotypic stability and adaptability, culminating in the recommendation of clones for each location. MHPRVG ranked clones RB92579, RB867515, SP81-3250, RB947520 and RB931530 as the best five, and, additionally, clones with greater genotypic potential were identified for each test in the six localities.