Boron in the phytotechnical, reproductive, and seed production components of hybrid Brachiaria (Brachiaria brizantha x Brachiaria ruziziensis) BRS RB331 Ipyporã
Abstract
The objective of this study was to evaluate the effects of boron at different doses and times of application on BRS RB331 Ipyporã. Two outdoor pot tests were conducted at the 2016/17 crop. In both tests, the treatments were represented by four doses of boron and control and two times of application in a randomized block design in a factorial scheme with three replications, and each plot represented by a pot with one plant. The substrate was composed of sand:soil (3:1). Fertilization was performed according to the need, considering the treatments. Substrate samples were analyzed. This experiment evaluated the number of vegetative tillers and plant height in two different times, chlorophyll and leaf analysis before the beginning of floral differentiation; flowering onset, number of reproductive tillers, and number of fully expanded inflorescences; quantification, viability, and pollen germination in full flowering. Seeds were evaluated for percentage of number and weight of full and empty seeds, germination, germination speed index, first germination count, and viability. Fresh and dry biomass and dry mass of the aerial part and roots were evaluated at the end of the experiment. The variables were analyzed using Assistat 7.7 software. Boron, applied at different doses and dates, did not affect the production (yield and quality) of BRS RB331 Ipyporã seeds. The phytotechnical components of the BRS RB331 Ipyporã hybrid were not influenced by the addition of boron. Boron had a positive effect on root production of the hybrid BRS RB331 Ipyporã.
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References
ALMEIDA, G.M.; CANTO, M.W.; BARTH NETO, A.; COSTA, A.C.S. Resposta da cultura de sementes de capim-mombaça a épocas e doses de adubação de boro. Semina: Ciências Agrárias, Londrina, v.36, n.3, p.1545-1558, 2015. DOI: 10.5433/1679-0359.2015v36n3p1545.
ARAÚJO, S.A.C.; DEMINICIS B.B.; CAMPOS, P.R.S.S. Melhoramento genético de plantas forrageiras tropicais no Brasil. Archivos de zootecnia, v.57, n.4, p.61-76, 2008. Disponível em: https://www.redalyc.org/articulo.oa?id=305226808013
BRASIL. Ministério da Agricultura, Pecuária e Abastecimento. Regras para análise de sementes. Ministério da Agricultura, Pecuária e Abastecimento. Secretaria de Defesa Agropecuária. Brasília: MAPA/ACS, 2009. 399p.
BRUNES, A.P.; OLIVEIRA, S.; LEMES, E.S.; TAVARES, L.C.; GEHLING, V.M.; DIAS, L.W.; VILLELA, F.A. Adubação boratada e produção de sementes de trigo. Ciência Rural, Santa Maria, v.45, n.9, p.1572-1578, 2015. DOI: 10.1590/0103-8478cr20131676
BRUNES, A.P.; LEMES, E.S.; MENDONÇA, A.O.; OLIVEIRA, S.; VILLELA, F.A. Suplementação de boro em diferentes épocas: Efeito no rendimento e na qualidade de sementes de trigo. Revista Verde de Agroecologia e Desenvolvimento Sustentável, v.11, n.2, p.05-10, 2016. DOI: 10.18378/rvads.v11i2.4039
FRANÇA, L.V. Fatores ambientais na produção de sementes de híbridos interespecíficos de Brachiaria. (Tese) Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Pelotas, 139p., 2011.
FRANZON, R.C.; RASEIRA, M.C.B. Germinação in vitro e armazenamento do pólen de Eugenia involucrata dc (Myrtaceae). Revista Brasileira de Fruticultura, Jaboticabal - SP, v.28, n.1, p.18-20, 2006. DOI: 10.1590/S0100-29452006000100008
GALINDO, F.S.; TEIXEIRA FILHO, M.C.M.; BUZETTI, S.; BOLETA, E.H.M.; RODRIGUES, W.L.; ROSA, A.R.M. Do the application forms and doses of boron affect wheat crops? Revista Brasileira de Engenharia Agrícola e Ambiental, v.22, n.9, p.597 – 603, 2018. DOI: 10.1590/1807-1929/agriambi.v22n9p597-603
JAVORSKI, M.; RINALDI, L.K.; MIRANDA, J.; SIMONETTI, A.P.M.; MOREIRA, G.C. Rendimento de sementes de milho em função da adubação foliar com cálcio e boro no estádio fenológico (V6). Revista Cultivando o Saber, v.8, n2, p.132-142, 2015. Disponível em: https://www.fag.edu.br/upload/revista/cultivando_o_saber/55d1ee1463d9a.pdf
MAGUIRE, J.D. Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Science. Madison, v.2, n.1, p.176-177, 1962. DOI: 10.2135/cropsci1962.0011183X000200020033x
REIS, C.J.; SORATTO, R.P.; BISCARO, G.A.; KULCZYNSKI, S.M.; FENANDES, D.S. Doses e modos de aplicação de boro na produção e qualidade fisiológica de sementes de feijão em solo de cerrado. Revista Ceres, v.55, n.4, p.258-264, 2008. Disponível em: https://www.redalyc.org/articulo.oa?id=305226703016
SILVA, F.A.S.; AZEVEDO, C.A.V. Principal Components Analysis in the Software Assistat-Statistical Attendance. In: WORLD CONGRESS ON COMPUTERS IN AGRICULTURE, 7, Reno-NV-USA: American Society of Agricultural and Biological Engineers, 2009.
TAIZ, L.; ZEIGER E. Fisiologia e Desenvolvimento Vegetal. Artmed, Porto Alegre, ed.6, 888p., 2017.
TRAUTMANN, R.R.; LANA, M.C.; GUIMARÃES, V.F.; GONÇALVES JR., A.C.; STEINER, F. Potencial de água do solo e adubação com boro no crescimento e absorção do nutriente pela cultura da soja. Revista Brasileira de Ciência do Solo, v.38, p.240-251, 2014. DOI: 10.1590/S0100-06832014000100024
VALLE, C.B.; EUCLIDES, V.B.P.; MONTAGNER, D.B.; VALÉRIO, J.R.; MENDES-BONATO, A.B.; VERZIGNASSI, J.R.; TORRES, F.Z.V.; MACEDO, M.C.M.; FERNANDES, C.D.; BARRIOS, S.C.L.; DIAS FILHO, M.B.; MACHADO, L.A.Z.; ZIMMER, A.H. BRS Ipyporã (“belo começo” em guarani): híbrido de Brachiaria da Embrapa. Embrapa Gado de Corte, Brasília-DF, Comunicado Técnico, n.137, p.17, 2017.
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