caa a22 4500 445322616 CHVBK 20180317142709.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10681-011-0521-z doi (NATIONALLICENCE)springer-10.1007/s10681-011-0521-z Repeatability of full-sib sugarcane families across harvests and the efficiency of early selection [Elektronische Daten] [Cássia Pedrozo, Márcio Barbosa, Felipe da Silva, Marcos de Resende, Luiz Peternelli] This study was designed to estimate the repeatability coefficient of traits of the plant-cane and first rattoon in a large number of full-sib sugarcane families and to select the superior families based on their predicted genotypic values. The population used in this study consisted of 190 families, and crossing was performed at the Federal University of Alagoas, in Murici, Alagoas, Brazil, in 2007. Five experiments, each with 22 families, took place at the Centro de Pesquisa e Melhoramento da Cana-de-Açúcar (CECA), in Oratórios, Minas Gerais, while four experiments, each with 20 families, took place at the Volta Grande mill (VGM), in Conceição das Alagoas, Minas Gerais. Each experiment took the form of a randomized complete block design with six replications. The following traits were determined from the plant-cane and first rattoon: percentage of soluble solids w/w in the juice (Brix), tons of stalks per hectare (TSH) and tons of brix per hectare (TBH). Statistical analyses were performed using the mixed model methodology. Variance components were estimated by restricted maximum likelihood (REML) and the genotypic values of families were predicted by best linear unbiased prediction (BLUP). The moderately high estimates of repeatability for TSH and TBH and the high rates of coincidences of the families selected in both plant-cane and first rattoon indicate that selection of families using repeated measures across the first two harvests combined with individual clone selection at the rattoon stage may be efficient in sugarcane breeding programs, increasing the efficiency of obtaining new cultivars. Springer Science+Business Media B.V., 2011 Mixed model nationallicence Saccharum sp nationallicence Genetic improvement nationallicence Temporal stability nationallicence Brix : Percentage of soluble solids w/w in the juice nationallicence TSH : Tons of stalks per hectare nationallicence TBH : Tons of brix per hectare nationallicence h2 : Broad-sense heritability at the family plot level nationallicence r : Repeatability at the family plot level nationallicence Pedrozo Cássia Empresa Brasileira de Pesquisa Agropecuária-EMBRAPA, Rodovia BR-174, km 8, Distrito Industrial, 69301-970, Boa Vista, Roraima, Brazil aut Barbosa Márcio Departamento de Agronomia, Universidade Federal de Viçosa, Avenida P.H. Rolfs, 36570-000, Viçosa, Minas Gerais, Brazil aut da Silva Felipe Empresa de Pesquisa Agropecuária de Minas Gerais-EPAMIG, Vila Gianetti, 46, Campus da UFV, 36570-000, Viçosa, Minas Gerais, Brazil aut de Resende Marcos Empresa Brasileira de Pesquisa Agropecuária/Universidade Federal de Viçosa, Estrada da Ribeira, Km 11, 83411-000, Colombo, Paraná, Brazil aut Peternelli Luiz Departamento de Estatística, Universidade Federal de Viçosa, Avenida P.H. Rolfs, 36570-000, Viçosa, Minas Gerais, Brazil aut Euphytica Springer Netherlands 182/3(2011-12-01), 423-430 0014-2336 182:3<423 2011 182 10681 https://doi.org/10.1007/s10681-011-0521-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0521-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pedrozo Cássia Empresa Brasileira de Pesquisa Agropecuária-EMBRAPA, Rodovia BR-174, km 8, Distrito Industrial, 69301-970, Boa Vista, Roraima, Brazil aut NATIONALLICENCE 700 1- Barbosa Márcio Departamento de Agronomia, Universidade Federal de Viçosa, Avenida P.H. Rolfs, 36570-000, Viçosa, Minas Gerais, Brazil aut NATIONALLICENCE 700 1- da Silva Felipe Empresa de Pesquisa Agropecuária de Minas Gerais-EPAMIG, Vila Gianetti, 46, Campus da UFV, 36570-000, Viçosa, Minas Gerais, Brazil aut NATIONALLICENCE 700 1- de Resende Marcos Empresa Brasileira de Pesquisa Agropecuária/Universidade Federal de Viçosa, Estrada da Ribeira, Km 11, 83411-000, Colombo, Paraná, Brazil aut NATIONALLICENCE 700 1- Peternelli Luiz Departamento de Estatística, Universidade Federal de Viçosa, Avenida P.H. Rolfs, 36570-000, Viçosa, Minas Gerais, Brazil aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 182/3(2011-12-01), 423-430 0014-2336 182:3<423 2011 182 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer