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Agronomic performance and genetic divergence between genotypes of Manihot esculenta
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Orientador(es)
Resumo(s)
The morphoagronomic characterization of 12 genotypes of M. esculenta was performed during the
2013/2014 and 2014/2015 crop years. The 12 genotypes were planted in a randomized block design, with
four replicates per genotype. Number of tuberous roots per plant, weight of tuberous roots, root yield, total
plant weight, harvest index, plant height, height of first branch, number of shoots, stem diameter, number
of buds, leaf dry weight and petiole length were evaluated. Genotypes “Camuquem” and “Goiás” were the
most productive, and “Amarela” and “Gema de Ovo” were the most divergent. Seventy percent of genetic
diversity was due to petiole length (22.86%), root yield (19.20%), weight of tuberous roots (14.89%) and
number of buds (13.72%). Overall, the present results indicate a broad genetic basis for the evaluated
genotypes, so that such genetic variation benefits the plant breeding for future scenarios Further studies
of the evaluated genotypes should be performed under environmental limitations, using biochemical and
molecular tools to identify markers for genetic improvement
Descrição
Palavras-chave
cassava Manihot esculenta plant breeding dissimilarity multivariate analysis
Contexto Educativo
Citação
Anais da Academia Brasileira de Ciências (2018) 90(4): 3639-3648
Editora
Academia Brasileira de Ciências