Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1087907
Research center of Embrapa/Collection: Embrapa Gado de Corte - Artigo em periódico indexado (ALICE)
Date Issued: 2016
Type of Material: Artigo em periódico indexado (ALICE)
Authors: BENTEO, G. de L.
VERZIGNASSI, J. R.
FERNANDES, C. D.
VALLE, C. B. do
MACEDO, M. C. M.
LIBÓRIO, C. B. de
MOTEIRO, L. C.
Additional Information: Gleiciane 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.
Title: Productivity and quality of Brachiaria brizantha B4 seeds in function of nitrogen doses.
Publisher: Ciência Rural, Santa Maria, v. 46, n. 9, p. 1566-1571, set. 2016
Language: en
Notes: Título em português: Produtividade e qualidade de sementes de Brachiaria brizantha B4 em função de doses de nitrogênio.
Keywords: Qualidade de sementes
Tropical forage
Embrapa Gado de Corte
Description: This 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.
Thesagro: Adubação
Forrageira tropical
NAL Thesaurus: Fertilizers
Seed quality
Phenology
Data Created: 2018-02-20
Appears in Collections:Artigo em periódico indexado (CNPGC)

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