Estimated of selection gain for productivity in progenies of sugarcane

Dutra Filho, João de Andrade; Bastos, Gerson Quirino; Machado, Paulo Rocha; da Silva, Leonam José; Simões Neto, Djalma Euzébio; Chaves, Andréa; da Silva, Frank Sinatra Gomes

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dc.creator	Dutra Filho, João de Andrade
dc.creator	Bastos, Gerson Quirino
dc.creator	Machado, Paulo Rocha
dc.creator	da Silva, Leonam José
dc.creator	Simões Neto, Djalma Euzébio
dc.creator	Chaves, Andréa
dc.creator	da Silva, Frank Sinatra Gomes
dc.date	2012-03-30
dc.date.accessioned	2022-03-21T20:06:56Z
dc.date.available	2022-03-21T20:06:56Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/83
dc.identifier	10.14295/cs.v3i1.83
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77515
dc.description	The objective this study was evaluate the agroindustrial performance, estimate genetic parameters and selection gain for productivity in progenies of sugarcane under field conditions. The experiment was carried out at the Factory Saint José, Igarassu (PE), during the 2008/2009 growing season. The experiment was conducted in a completely randomized block design, and five replicates. The variables were: TCH, TPH, PC, BRIX, ATR and ATR t/ha. The analysis of variance and estimate of genetic parameters were performed. To estimate the selection gain, was used the method of direct selection. The F test showed significance and high estimate of mean heritability for TCH, TPH and ATR t/ha variables, indicating the possibility of successful selection based on those characters. Through the group averages, evidenced by Scott and Knott test, the progeny from crosses between genotypes RB83102 x RB855035 stood out above all others when it comes to productivity. By estimating the selection gain, it was found that it is possible for the practice of direct selection obtain genetic gain is significant in relation to productivity.	en-US
dc.description	Objetivou-se com este trabalho avaliar o desempenho agroindustrial, estimar parâmetros genéticos e o ganho por seleção para produtividade em famílias de cana-de-açúcar em condições de campo. O experimento foi conduzido na área agrícola da Usina São José, município de Igarassu - PE, durante o ano agrícola 2008/2009. Utilizou-se o delineamento experimental de blocos casualizados com cinco repetições. As variáveis analisadas foram: toneladas de cana por hectare (TCH), toneladas de pol por hectare (TPH), pol % corrigida (PCC), teor de sólidos solúveis (BRIX), açúcar total recuperável (ATR) e toneladas de açúcar total recuperável por hectate (ATR t/ha). Realizou-se a análise de variância e estimativa de parâmetros genéticos. Para estimar o ganho por seleção utilizou-se a metodologia da seleção direta. O Teste F revelou significância e alta estimativa de herdabilidade média para as variáveis TCH, TPH e ATR t/ha, indicando possibilidade de sucesso na seleção com base nesses caracteres. Através do agrupamento de médias, evidenciado pelo teste de Scott e Knott, a família oriunda do cruzamento entre os genótipos RB83102 x RB855035 destacou-se sobre as demais em relação à produtividade. Por meio da estimativa do ganho por seleção, constatou-se que é possível pela prática da seleção direta obter-se ganho genético significativo em relação à produtividade. Estimated of selection gain for productivity in progenies of sugarcaneThe objective this study was evaluate the agroindustrial performance, estimate genetic parametersand selection gain for productivity in progenies of sugarcane under field conditions. The experimentwas carried out at the Factory Saint José, Igarassu (PE), during the 2008/2009 growing season. Theexperiment was conducted in a completely randomized block design, and five replicates. Thevariables were: TCH, TPH, PC, BRIX, ATR and ATR t/ha. The analysis of variance and estimate ofgenetic parameters were performed. To estimate the selection gain, was used the method of directselection. The F test showed significance and high estimate of mean heritability for TCH, TPH and ATRt/ha variables, indicating the possibility of successful selection based on those characters. Through thegroup averages, evidenced by Scott and Knott test, the progeny from crosses between genotypesRB83102 x RB855035 stood out above all others when it comes to productivity. By estimating theselection gain, it was found that it is possible for the practice of direct selection obtain genetic gainis significant in relation to productivity.	pt-BR
dc.format	application/pdf
dc.language	por
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/83/95
dc.source	Comunicata Scientiae; Vol. 3 No. 1 (2012); 35-40	en-US
dc.source	Comunicata Scientiae; v. 3 n. 1 (2012); 35-40	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	agroindustrial performance	en-US
dc.subject	genetic gain	en-US
dc.subject	agricultural yield	en-US
dc.subject	Saccharum spp.	en-US
dc.subject	Desempenho agroindustrial	pt-BR
dc.subject	ganho genético	pt-BR
dc.subject	produtividade agrícola	pt-BR
dc.subject	Saccharum spp.	pt-BR
dc.title	Estimated of selection gain for productivity in progenies of sugarcane	en-US
dc.title	Estimativa do ganho por seleção para produtividade em famílias de cana-de-açúcar	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion