Selection of inbred maize Zea mays L. progenies by topcrosses conducted in contrasting environments

dc.creatorRodrigues, C. S.
dc.creatorPacheco, C. A. P.
dc.creatorGuedes, M. L.
dc.creatorPinho, R. G. V.
dc.creatorCastro, C. R.
dc.date2019-02-22T18:47:26Z
dc.date2019-02-22T18:47:26Z
dc.date2016-09
dc.date.accessioned2023-09-28T20:08:30Z
dc.date.available2023-09-28T20:08:30Z
dc.identifierRODRIGUES, C. S. et al. Selection of inbred maize Zea mays L. progenies by topcrosses conducted in contrasting environments. Genetics and Molecular Research, [S. l.], v. 15, n. 3, p. 1-11, Sept. 2016. doi: 10.4238/gmr.15038827.
dc.identifierhttp://www.funpecrp.com.br/gmr/year2016/vol15-3/pdf/gmr8827.pdf
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/32980
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9045448
dc.descriptionThe aim of this study was to identify inbred progenies of S0:1 maize (Zea mays L.) plants that were efficient at a low level of technology and responsive at a high level of technology through the use of topcrosses. Two contrasting environments were created using two levels of base fertilization and topdressing, so that the levels of nitrogen, phosphorus, and potassium were applied four times higher in one environment than in the other. We used S0:1 progenies derived from commercial hybrids in topcrosses with two testers (an elite line from the flint heterotic group and an elite line from the dent heterotic group). The progenies and three controls were evaluated in an augmented block design in Nossa Senhora das Dores, SE, Brazil in the 2010 crop season. The average grain yield in the high-technological level was 21.44% greater than that in the low-technological level. There were no changes in progeny behavior in the two technological levels for grain yield. The testers did not differ in the average grain yield of the progenies at the two technological levels. Therefore, it is possible to select progenies derived from commercial hybrids that have an efficient response to fertilization.
dc.languageen_US
dc.publisherFundação de Pesquisas Científicas de Ribeirão Preto
dc.rightsrestrictAccess
dc.sourceGenetics and Molecular Research
dc.subjectMaize - Inbred progenies
dc.subjectMaize - Fertilization
dc.subjectGrain yield
dc.subjectMilho - Progênies endogâmicas
dc.subjectMilho - Fertilização
dc.subjectRendimento de grãos
dc.titleSelection of inbred maize Zea mays L. progenies by topcrosses conducted in contrasting environments
dc.typeArtigo


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