Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/12004
Tipo: | Artigo |
Título: | Comparison between different selection indices in energy cane breeding |
Autor(es): | Azeredo, A.A.C. de Bhering, L.L. Brasileiro, B.P. Cruz, C.D. Silveira, L.C.I. Oliveira, R.A. Bespalhok Filho, J.C. Daros, E. |
Abstract: | Sugarcane breeding programs have been adapting to a new market demand: aside from high sucrose yield per hectare, the sector needs new cultivars with higher fiber percentages. The selection of sugarcane clones based on phenotype alone is a complex task. The selected clones should display high performance in a series of yield- and quality-related traits. Selection indices can provide information about which clones can best combine the traits of agronomic interest. In this study, different selection indices were evaluated in a population of 220 clones. The following traits were evaluated: weight of 10 stalks with straw, weight of 10 stalks with no straw, tons of cane per hectare with straw, tons of cane per hectare with no straw, sucrose content, fiber percentage, and tons of fiber per hectare. The selection indices of Smith (1936) and Hazel (1943) and Mulamba and Mock (1978), the base index (Williams, 1962), and the index of Pesek and Baker (1969) were used. The selection index of Mulamba and Mock (1978) without economic weight estimates, the index of Mulamba and Mock with economic weights based on heritability, and the index of Pesek and Baker (1969) with the desired gains based on genetic standard deviations were efficient for the selection of energy cane clones with good fiber yield, sucrose content, and tons of cane per hectare. |
Palavras-chave: | Bioenergy Second-generation ethanol Biomass Fiber Quantitative genetics Saccharum spp |
Editor: | Genetics and Molecular Research |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.4238/gmr16019535 http://www.locus.ufv.br/handle/123456789/12004 |
Data do documento: | 15-Mar-2017 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
gmr-16-01-gmr.16019535.pdf | texto completo | 1,56 MB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.