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dc.contributor.authorFIGUEIREDO, U. J. deeng
dc.contributor.authorBERCHEMBROCK, Y. V.eng
dc.contributor.authorVALLE, C. B. doeng
dc.contributor.authorBARRIOS, S. C. L.eng
dc.contributor.authorQUESENBERRY, K. H.eng
dc.contributor.authorMUÑOZ, P. R.eng
dc.contributor.authorNUNES, J. A. R.eng
dc.date.accessioned2019-12-27T18:15:40Z-
dc.date.available2019-12-27T18:15:40Z-
dc.date.created2019-12-27
dc.date.issued2019
dc.identifier.citationCrop Breeding and Applied Biotechnology, v. 19, n. 3, p. 291-299, 2019.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1117770-
dc.descriptionPerennial grass hybrids of Urochloa are evaluated for at least two years during the screening stage trials (SS) and advanced trials (AD) in breeding programs, an expensive and time-consuming process. In this study, we aimed to evaluate the potential for early selection of cultivars in this breeding scheme. We used multiple measurements of agronomic and nutritive value traits of Urochloa humidicola and Urochloa decumbens in the SS, and Urochloa ssp. in the AD. Repeatability coefficient, genetic correlation, selection efficiency (SE), and Spearman correlations were estimated. The results indicated that reliable early selection could be applied, decreasing the evaluation period to one year and a half for SS, and to one year for AD. These results were confirmed by high genetic and rank correlations, and overall SE above 50%. This proposed change in the breeding scheme could save considerable time, labor, and resources and accelerate the release of improved cultivars.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectUrochloa sppeng
dc.subjectRepeatability coefficienteng
dc.subjectForage breedingeng
dc.subjectRank correlationeng
dc.titleEvaluating early selection in perennial tropical forages.eng
dc.typeArtigo de periódicoeng
dc.date.updated2019-12-27T18:15:40Z
riaa.ainfo.id1117770eng
riaa.ainfo.lastupdate2019-12-27
dc.contributor.institutionUlisses José de Figueiredo, Barenbrug do Brasil Sementes Ltda; Yasmin Vasques Berchembrock, Universidade Federal de Lavras - UFLA; Cacilda Borges do Valle, Colaboradora do CNPGC; SANZIO CARVALHO LIMA BARRIOS, CNPGC; Kenneth H. Quesenberry, University of Florida/Horticultural Science Departament; Patrício Ricardo Muñoz, University of Florida/Horticultural Science Departament; José Airton Rodrigues Nunes, Universidade Federal de Lavras - UFLA.eng
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