Productivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses.

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dc.contributorGleiciane de Lima Benteo, Instituto Federal Goiano - IFG; JAQUELINE ROSEMEIRE VERZIGNASSI, CNPGC; CELSO DORNELAS FERNANDES, CNPGC; CACILDA BORGES DO VALLE, CNPGC; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; Cláudia Barrios de Libório, Instituto Federal Goiano - IFG; Lenise Castilho Monteiro, Instituto Federal Goiano - IFG.
dc.creatorBENTEO, G. de L.
dc.creatorVERZIGNASSI, J. R.
dc.creatorFERNANDES, C. D.
dc.creatorVALLE, C. B. do
dc.creatorMACEDO, M. C. M.
dc.creatorLIBÓRIO, C. B. de
dc.creatorMOTEIRO, L. C.
dc.date2018-02-21T00:39:21Z
dc.date2018-02-21T00:39:21Z
dc.date2018-02-20
dc.date2016
dc.date2018-02-21T11:11:11Z
dc.date.accessioned2026-07-07T03:40:20Z
dc.descriptionThis study aimed to evaluate aspects of reproductive phenology, yield components and seed quality of the B4 genotype of Brachiaria brizantha in function of nitrogen doses applied at pre-flowering. The experiment was carried out at Embrapa Beef Cattle, in a randomized block design, with seeding density of 2.59kg SPV ha-1 in the first year, in free growth plants. Urea was applied at pre-flowering at doses of 0, 25, 50, 75, 100, 125 and 150kg ha-1. The reproductive cycle of the plant lasts 225 days, with late flowering. N doses influenced the following characteristics: number of fully expanded inflorescences, percentage of dry matter, dry biomass, number of spikelets per raceme, seed yield, weight of a thousand seeds, germination, germination speed index, viability and germination at 10 months after harvest. The maximum yield of pure seed was 144.8kg ha-1 for 50kg ha-1 N, with maximum biological potential, based on components of seed yield of 456.27kg ha-1. Seeds presented high dormancy and reduced physiological quality in higher N doses.
dc.descriptionTítulo em português: Produtividade e qualidade de sementes de Brachiaria brizantha B4 em função de doses de nitrogênio.
dc.identifierCiência Rural, Santa Maria, v. 46, n. 9, p. 1566-1571, set. 2016
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1087907
dc.identifier.urihttp://hdl.handle.net/123456789/440383
dc.languageeng
dc.rightsopenAccess
dc.subjectQualidade de sementes
dc.subjectTropical forage
dc.subjectEmbrapa Gado de Corte
dc.subjectAdubação
dc.subjectForrageira tropical
dc.subjectFertilizers
dc.subjectSeed quality
dc.subjectPhenology
dc.titleProductivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses.
dc.typeArtigo de periódico

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