Produtividade de genótipos de milho doce e milho verde em função de intervalos de colheita

Luz, José Magno Queiroz; Camilo, Jéssica S; Barbieri, V.; Rangel, Ramon Macedo; Oliveira, Roberta Camargos de

doi:10.1590/s0102-05362014000200007

Cited by 29 publications

(25 citation statements)

References 7 publications

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“…Portanto, para esse tratamento, poderia ser indicada uma antecipação da colheita, o que seria vantajoso para o agricultor e para a indústria. Luz et al (2014) avaliaram características de híbridos de milho doce e verde, em função de intervalos de colheita, e observaram que a colheita mais tardia reduz a umidade dos grãos. Dessa forma, para o híbrido de milho verde SWC 02, a colheita deveria ser antecipada em função do conteúdo de umidade dos grãos, pois a conversão dos açúcares em amido altera a composição química, assim como alterou para o tratamento 2 do presente estudo.…”

Section: Materials Mineral Ou Cinzas é O Resíduo Inorgânicounclassified

Caracterização pós-colheita de milho doce submetido ao parcelamento de fertirrigação nitrogenada

Perfeito

Lopes

Salomão

et al. 2017

Braz. J. Food Technol.

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Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado. Caracterização pós-colheita de milho doce submetido ao parcelamento de fertirrigação nitrogenada Post-harvest characterization of sweet corn submitted to nitrogen fertigation ResumoA presente pesquisa teve como objetivo avaliar a qualidade pós-colheita do milho doce submetido ao processo de parcelamento do nutriente nitrogênio, aplicado via fertirrigação, através de parâmetros físicos, químicos e sensoriais. A cultivar de milho doce utilizada foi a Doce Cristal (BR-402), sob a influência da fertirrigação em quatro tratamentos, com diferentes parcelamentos de nitrato de amônio, sendo Tratamento 1: 2 aplicações; Tratamento 2: 4 aplicações; Tratamento 3: 6 aplicações, e Tratamento 4: 8 aplicações. As espigas foram avaliadas quanto aos parâmetros físicos de comprimento, diâmetro e massa; físico-químicos de pH, sólidos solúveis, umidade e cinzas; análise sensorial, através do teste de aceitação, além da avaliação instrumental da textura. Nos parâmetros físicos, os tratamentos influenciaram apenas na característica diâmetro das espigas com palha (5,3 cm a 5,8 cm) e sem palha (4,3 cm a 4,7 cm). Nas análises físico-químicas, apenas a acidez titulável em ácido málico não apresentou diferença entre os tratamentos, sendo que os sólidos solúveis apresentaram maior diferença entre os tratamentos, com o Tratamento 4 apresentando 15 °Brix e o Tratamento 2, 17 °Brix. Os tratamentos não influenciaram na aceitação sensorial das espigas de milho doce, as quais apresentaram boa aceitação sensorial para todos os atributos avaliados, com médias hedônicas superiores a 7,3. Palavras-chave: Zea mays L.; Análise sensorial; Adubação nitrogenada. AbstractThe aim of this research was evaluate the quality of sweet corn submitted to the nitrogen nutrient installment process applied by fertigation from the physical, chemical and sensory parameters. The cultivar of sweet corn used in the experiment was Doce Cristal (BR-402), submitted to the influence of fertigation in 4 treatments with different installments of ammonium nitrate: Treatment 1: 2 applications, Treatment 2: 4 applications, Treatment 3: 6 applications and Treatment 4: 8 applications. The corn cobs were evaluated for the physical parameters of length, diameter and mass; the physicochemical parameters of pH, soluble solids, moisture and ash; and a sensory analysis using the acceptance test as well as the instrumental texture analysis. For the physical parameters, the treatments only affected the diameter of the ears with (5.3 cm to 5.8 cm) and without (4.3 cm to 4.7 cm) the straw. In the physicochemical analysis only titratable acidity measured as malic acid did not differ between treatments, and the soluble solids showed the greatest difference between treatments with treatment 4 presenting 15 ºBrix and treatment 2 17 ºBrix. The treatments did not influ...

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Section: Materials Mineral Ou Cinzas é O Resíduo Inorgânicounclassified

Caracterização pós-colheita de milho doce submetido ao parcelamento de fertirrigação nitrogenada

Perfeito

Lopes

Salomão

et al. 2017

Braz. J. Food Technol.

View full text Add to dashboard Cite

show abstract

“…The super sweet corn breeding process requires special care, since this vegetal intended to human consumption. Thus, it is necessary pursuing good yield, although it often happens in the common corn breeding process (Worrajinda et al, 2013), as well as it is worth pursuing a set of attributes able to generate a final product associated with quality, good appearance and with high aggregated market value (Luz et al, 2014).…”

Section: Analysis Of Variance and The Significance Of The Diallel Anamentioning

confidence: 99%

Combining ability for traits associated with yield and quality in super sweet corn (Zea mays L. saccharata)

Durães¹,

Crevelari²,

Vettorazzi³

et al. 2017

Aust J Crop Sci

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Most commercial super sweet corn lines focus on simple hybrids. Information about the general combining ability (GCA) and about the specific combining ability (SCA) are relevant for hybrid development. The aim of the present study is to estimate the general and specific combining ability effects associated with yield and quality traits of super sweet corn. Nine lines (Flint) and ten lines (Dent) were crossed in a partial diallel fashion to produce 90 F 1 hybrids. The hybrids and ten checks were assessed through the duplicate simple lattice design, with four repetitions, in two environments of Rio de Janeiro State, during the 2015 season. Data of six agronomic traits associated with yield, and five traits associated with quality were recorded. The results showed that GCA and SCA were significant (P ≤0.01) for almost all herein studied traits. The relative magnitude of GCA and SCA mean squares indicated the prevalence of additive effects for the quality traits, as well as non-additive effects for yield traits. The GCA and SCA (P≤0.01) interactions showed different genotype responses to the different environments. The "Flint" L1 inbred line presented the highest concentration of alleles favoring the increment for most of the traits. This line was the most suitable for the formation of new supersweet hybrids. Three crosses (L8 x L18, L1 x L13 and L6 x L15) showed desirable SCA effects for almost all traits. These crosses are valuable and could be used in corn breeding programs in order to achieve high yielding and quality combinations.

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“…Maize (Zea mays L.) is originally from Central America and has acclimatization capacity to various climates, which gives it considerable plasticity and allows its cultivation in many areas of the world (Silveira, Bonetti, Tragnago, Neto, and Monteiro 2015). Corn is grown practically all year round, where it is explored on most farms, cultivated with low technology and subsistence characteristics in addition to technology cultivation and high productivity (Luz, Camilo, Barbieri, Rangel, & Oliveira, 2014).…”

Section: Introductionmentioning

confidence: 99%

Path Analysis of Green Maize Components from Hybrids Cultivated Under Reduced Spacing

Nascimento¹,

Ferreira²,

Nascimento³

et al. 2019

JAS

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The yield and cause and effect relationships of green-ear production components of hybrids cultivated in reduced spaced environments were investigated aiming to increase the green ear harvest, as well as to identify the main characteristics that contribute most to the productivity. Four row spacings were evaluated using three commercial hybrids. The experiment lasted three months and were evaluated: plant height (PH) and ear insertion height (EIH), leaf area (LA), stem diameter (SD), total number of ears, total ear yield, number of ear with straw and without straw, yield of ears with straw (YES) and yield ear without straw (YEWS), ear length (EL) and ear diameter (ED). In addition, the full correlation in direct and indirect effects was performed by the path analysis of the PH, EIH, LA, SD, EL, ED characters on the YEWS. It was found that the reduction of spacing to 60 cm favors higher YEWS without compromising the quality, size and diameter of the green ears. However, the EL, EIH and SD are the main characters that directly and indirectly influence the yield of green ears of maize hybrids cultivated in reduced spaced environment.

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Produtividade de genótipos de milho doce e milho verde em função de intervalos de colheita

Cited by 29 publications

References 7 publications

Caracterização pós-colheita de milho doce submetido ao parcelamento de fertirrigação nitrogenada

Caracterização pós-colheita de milho doce submetido ao parcelamento de fertirrigação nitrogenada

Combining ability for traits associated with yield and quality in super sweet corn (Zea mays L. saccharata)

Path Analysis of Green Maize Components from Hybrids Cultivated Under Reduced Spacing

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