Comportamento de cultivares de soja, em diferentes épocas de semeaduras, visando a produção de biocombustivel

Barbosa, Vitor da Silva; Pelúzio, Joênes Mucci; Afférri, Flávio Sérgio; Siqueira, Guilherme Benko de

doi:10.1590/s1806-66902011000300021

Cited by 19 publications

(23 citation statements)

References 11 publications

(16 reference statements)

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“…Such interaction was expected, since there was large variation in both rainfall and temperature, during the periods of the experiments (Figure 1). This result is in agreement with those obtained by Albrecht et al (2008), Lélis et al (2010), Barbosa et al (2011) and Lopes et al (2014) The means of the cultivars as a function of the periods are shown in Table 2. For all cultivars, the first sowing season (Dec/5) led to higher protein yield in comparison to the second one (Jan/23), which were 1,557 and 445 kg ha -1 on average, respectively.…”

Section: Resultssupporting

confidence: 92%

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Lima

Pelúzio

Mandarino

et al. 2017

Rev. bras. eng. agríc. ambient.

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The present study was conducted in order to determine the effects of potassium (K) fertilizer doses on the protein yield of different soybean cultivars, sown in two seasons, in the agricultural year 2013/14 (12/05/13 and 01/23/14), in Palmas-TO, Brazil. The experimental design, in each sowing season, was randomized blocks with 60 treatments and three replicates. The treatments were arranged in a 10 × 6 factorial scheme, represented by ten cultivars (BRS 325RR, M 9144RR, BRS 33871RR, TMG 1288RR, BRS 333RR, P 98Y70RR, TMG 1180RR, BRS 9090RR, M 8766RR and BRS 8990RR) and six doses of K fertilizer (0, 40, 80, 120, 160 and 200 kg ha-1 K2O). The late sowing decreased the protein yield. K fertilization increased the protein yield in soybean cultivars. The BRS 9090RR, BRS 33871RR and BRS 333RR cultivars, at high and low K doses, were the most promising for the protein yield, and their cultivation is strategic from the economic and environmental point of view.

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Section: Resultssupporting

confidence: 92%

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Lima

Pelúzio

Mandarino

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…Esses resultados estão próximos aos obtidos por Bellaloui e Gillen (2010), Barbosa et al (2011) e Sales et al (2013, que encontraram variações de 17,31 a 24,69% entre as cultivares, sendo esses dois últimos trabalhos conduzidos no Estado do Tocantins.…”

Section: Literatura Científica Citadaunclassified

“…A composição química da soja é consideravelmente influenciada pela genética das cultivares (SOUZA et al, 2009), pelas condições climáticas onde as plantas crescem (ALBRECHT et al, 2008;BARBOSA et al, 2011) e pelas características químicas do solo (MORAES et al, 2008;VEIGA et al, 2010). Alguns autores indicam fatores que interferem nos teores de proteína e óleo do grão de soja, tais como: sombreamento (PROULX; NAEVE, 2009;BELLALOUI;GILLEN, 2010), remoção de vagens e folhas (PROULX; NAEVE, 2009) e posição das vagens nos nós da haste da planta (HUSKEY et al,1990;BENETT et al, 2003;BELLALOUI;GILLEN, 2010;SALES et al, 2013).…”

Section: Introductionunclassified

Teor de óleo e proteína em grãos de soja em diferentes posições da planta

Sales

Pelúzio

Afférri

et al. 2016

AGRO@MBIENTE ON-LINE

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Resumo: A posição da vagem na haste da planta constitui um dos vários fatores que influenciam a composição química dos grãos de soja. A interferência no conteúdo final de proteína e óleo pode resultar em erros de quantificação durante o processo de amostragem, importante em programas de melhoramento. Objetivou-se com este trabalho estudar o efeito da posição das vagens na planta no teor de óleo e proteína em cultivares de soja desenvolvidas para as condições de baixa latitude. Foram instalados dois experimentos na área experimental da Universidade Federal do Tocantins (UFT), no município de Palmas -TO. O delineamento experimental utilizado em cada experimento (ano agrícola) foi de blocos casualizados, com três repetições. Os tratamentos foram dispostos em esquema de parcelas subdivididas, sendo alocados nas parcelas 15 cultivares de soja; e nas subparcelas o posicionamento das vagens na haste da planta. Houve diferenças significativas para os teores de proteína e óleo entre as cultivares, bem como nas diferentes partes da planta. Os mais altos teores de proteína foram observados no terço superior, e os mais altos teores de óleo no terço médio e inferior. Assim, recomenda-se que o processo de amostragem de grãos, visando a seleção de cultivares superiores, seja realizado na mesma posição das plantas, a fim de reduzir os erros de quantificação dos teores de proteína e óleo, pelo efeito da posição das vagens. Palavras-chave: Melhoramento genético. Cultivares. Leguminosas. Glycine max.Abstract: The position of the pod on the plant stem is one of several factors that influence the chemical composition of soybean grain. Interference in the final levels of protein and oil can result in errors of quantification during the sampling process, important in breeding programs. The aim of this work was to study the effect of pod position on oil and protein levels in soybean cultivars developed for low-latitude conditions. Two experiments were installed in the experimental area of the Federal University of Tocantins (UFT) in the city of Palmas, in the State of Tocantins, Brazil (TO). The experimental design used in each experiment (agricultural year) was of randomised blocks with three replications. The treatments were arranged into split lots, with 15 soybean cultivars allocated to the lots, and pod placement on the plant stem allocated to the sub-lots. There were significant differences in protein and oil content between cultivars, as well as from the different parts of the plant. The highest protein content was seen on the upper third of the stem, and the highest oil content on the middle and lower third. It is recommended therefore that, in order to select superior cultivars, the grain sampling procedure always be carried out on the same part of the plant, so as to reduce errors of quantification of the protein and oil content as a result of the position of the pods.

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“…Thus, the elevated socioeconomic value of cultivation is mainly driven to the high protein content (40%, on average), allied to a high grain productivity (3,000 kg ha -1 on average). Protein content might still vary according on climatic conditions 8,9 , Cultivars 10 , fertilization levels [11][12][13] , leaf removal and pods 14 , shading 14,15 ; and pods' position in the main stem of the plant [15][16][17][18][19] . Regarding the effect of pods' position in the main stem of the plant, numerous v indicated that the grains located on the top of the plant has higher protein concentration than grains from the bottom of the plant [15][16][17] .…”

Section: Palavrasmentioning

confidence: 99%

Effect of pods' position on the protein content in soybean grains at low latitude

Sales

Pelúzio

Afférri

et al. 2016

J. Bioen. Food Sci.

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Comportamento de cultivares de soja, em diferentes épocas de semeaduras, visando a produção de biocombustivel

Cited by 19 publications

References 11 publications

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Teor de óleo e proteína em grãos de soja em diferentes posições da planta

Effect of pods' position on the protein content in soybean grains at low latitude

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