Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Nobre, Danúbia Aparecida Costa; Resende, José Carlos Fialho de; Brandão, Delacyr da Silva; Costa, Cândido Alves da; Morais, Danielle de Lourdes Batista

doi:10.18227/1982-8470ragro.v6i2.781

Cited by 7 publications

(11 citation statements)

References 9 publications

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“…Poletine et al (2013), in an experiment carried out in Umuarama -PR evaluated the genetic parameters of 23 sunflower hybrids under conditions of Caiuá Sandstone and found similar values for the DIF of some cultivars. Similar results were observed by Nobre et al (2012), indicating that there is a pattern of development, regardless of place of farming, as already mentioned by Zobiole et al (2010). In other words, initial flowering may not be related to the climatic regularity, but to the difference in genotypes (NOBRE et al, 2012).…”

Section: Grain Characterizationsupporting

confidence: 83%

Essential elements, oil and protein contents of sunflower hybrids grown in Brazil

Amaral

Ferrari

Rabonato

et al. 2018

Braz. J. Food Technol.

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In this research the mineral elements and the oil and protein contents of thirteen sunflower hybrids grown in Brazil, were studied. In addition, the possibility of jointly obtaining products with high productivity and high oil and protein contents was evaluated. The research showed high achene productivity, exceeding the national average, mainly by the hybrids BRS G44, SYN 045 and M 734. It should be taken into account that some hybrids, such as NTC 90, despite their high productivity, are not suitable for production when the purpose is to obtain oil and protein meal. The hybrid BRS G46 presented high oil and protein contents. On the other hand, SYN 065 was the least productive (808.10 kg ha-1) and, despite the fact that this hybrid showed an above average oil content, it showed the lowest protein content of the grains analysed. In general, the samples analysed had higher concentrations of K, Mg, S, Fe, Zn, Mn, Cr, Ni and Cu, whereas the mineral contents of Mo, Co and Se were present at lower levels. The hybrid BRS G45 indicated the presence of larger amounts of elements at higher concentrations, such as: Mg, S, Cr, Fe, Ni, Cu and Zn, followed by BRS G44, which showed higher contents of Mg, Cr, Mn, Fe and Ni. The characterization of the Brazilian hybrids in this study allowed for their differentiation for specific purposes and the possibility of oil production combinations, producing oils with characteristics that make them apt for alternative uses of their by-products (such as the hybrid BRS G46), this being a great opportunity to increase the farm income.

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Section: Grain Characterizationsupporting

confidence: 83%

Essential elements, oil and protein contents of sunflower hybrids grown in Brazil

Amaral

Ferrari

Rabonato

et al. 2018

Braz. J. Food Technol.

View full text Add to dashboard Cite

show abstract

“…The main objectives of sunflower breeding are related to obtaining stable cultivars with higher grain and oil yield for use in the production of feed and oil extraction for human consumption (Nobre, Resende, Brandão Junior, Costa, & Morais, 2012). In Brazil, hybrids and sunflower varieties developed in different programs have been evaluated for grain and oil yield by the National Sunflower Trials Network, coordinated by Embrapa.…”

Section: Introductionmentioning

confidence: 99%

Optimum environment number for the national sunflower trials network

et al. 2019

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This work aimed to present the optimum environment number methodology and propose the optimization of the National Sunflower Trials Network, by means of the environments exclusion that do not provide loss of the environmental variability already established. Grain and oil yield data of 16 genotypes evaluated at 16 environments of the National Sunflower Trials Network, obtained from trials conducted out-of-season in 2012 and 2013 were used. An analysis was proposed to establish the optimum environment number for genotypes evaluation, based on genotype performance in the various environmental combinations. The removal or maintenance of environments in the experimental network was dynamic, since different environmental combinations impacted the representativeness of the complete network in a different way. This analysis also provides a graphical view of the impact of the environment removal from the network. Once detected points below the established correlation, the researcher could infer about the network minimum environment number and, suggest through consistent information of several testing years, the environment exclusion.

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“…Os fatores ambientais podem influenciar no desempenho dos diferentes cultivares de girassol, que, apesar de ser uma espécie com grande resiliência edafoclimática, variações na produção e no rendimento de seus componentes podem ser observados em função da época e da região onde é semeado. (NOBRE et al, 2012a;JONER et al, 2011). Casadebaig et al (2011, corroboram com tal premissa ao enfatizar que, a melhoria na produção de uma cultura não depende somente da seleção de novos cultivares, mas, também da capacidade de identificação daqueles que melhor se adaptam a diferentes regiões e manejos.…”

Section: Resultsunclassified

Crescimento Inicial De Dois Cultivares De Girassol Em Casa De Vegetação Sob Condições De Clima Tropical Quente Subúmido

Nunes

Gondim

Braga

2016

cnx

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Resumo. Este trabalho objetivou analisar o crescimento inicial de dois cultivares de girassol, 'BRS 323' e 'BRS 324', determinando-se: percentual de emergência de plântulas do solo, número de folhas, diâmetro dos caules e, as matérias fresca e seca da parte aérea, das raízes e total. O trabalho foi conduzido em casa de vegetação, localizada no Instituto Federal do Ceará, na cidade de Maracanaú, Ceará, Brasil. As sementes dos cultivares 'BRS 323' e 'BRS 324' foram semeadas em vasos de plástico de 6 L preenchidos com húmus de minhoca e vermiculita na proporção de 1:1, com cinco repetições. Os resultados de diferentes períodos de coleta (14 e 21 dias) foram submetidos à análise de variância (ANOVA) e as médias comparadas pelo teste de Tukey (P ≤ 0,05). Nas condições experimentais empregadas, constatouse que o cultivar 'BRS 323' apresentou uma melhor aclimatação do que o 'BRS 324'. O 'BRS 323' apresentou parâmetros de crescimento (percentual de emergência de plântulas do solo, número de folhas, diâmetro dos caules, matérias fresca e seca da parte aérea, das raízes e total) mais elevados do que o 'BRS 324'. No entanto, estudos em campo fazem-se necessários para confirmar uma possível indicação do cultivar 'BRS 323' para regiões que apresentem condições climáticas semelhantes às empregadas.Palavras-chaves: Análise de crescimento. Helianthus annuus L.. Percentual de emergência de plântulas do solo.Abstract. The aim of this study was to analyze comparatively the initial growth of two sunflower cultivars 'BRS 323' and 'BRS 324', where it was determined: soil seedling emergency percentage, the leaves number, the stems diameter and, fresh and dry matter of the shoot, roots and total. The study was conducted under greenhouse conditions, located at the Instituto Federal do Ceará, in Maracanaú city, Ceará, Brazil. The seeds of the 'BRS 323' and 'BRS 324' cultivars were sown in plastic pots (6L) containing earthworm castings and vermiculite in the ratio of 1:1, with five replicates of each cultivar. The results of different harvest times (14 and 21 days) were subjected to analysis of variance (ANOVA) and the means compared by Tukey's test (P ≤ 0,05). In the employed experimental conditions, it was found that the 'BRS 323' cultivar showed a better acclimation than the 'BRS 324'. The 'BRS 323' had growth parameters (soil seedling emergency percentage, the number of leaves, the stems diameter and, fresh and dry matter of shoot, roots and total) higher than the 'BRS 324'. However, studies under field conditions are required to confirm the possible indication of the 'BRS 323' cultivar for similar regions with climatic conditions those they were here used.

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Desempenho agronômico de genótipos de girassol no norte de Minas Gerais.

Cited by 7 publications

References 9 publications

Essential elements, oil and protein contents of sunflower hybrids grown in Brazil

Essential elements, oil and protein contents of sunflower hybrids grown in Brazil

Optimum environment number for the national sunflower trials network

Crescimento Inicial De Dois Cultivares De Girassol Em Casa De Vegetação Sob Condições De Clima Tropical Quente Subúmido

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