Atributos de desempenho industrial e qualidade de sementes em aveia branca em função da disponibilzação da adubação nitrogenada

Kolchinski, Eliane Maria; Schuch, Luis Osmar Braga

doi:10.1590/s0103-84782003000300031

Cited by 6 publications

(6 citation statements)

References 2 publications

(1 reference statement)

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“…Similar results were observed by Kolchinski and Schuch (2003), working with four cultivars of white granulated oats (CTC 5, UFRGS 15, UFRGS 19, and UPF 18) with four N doses (0, 24, 48, and 73 kg ha -1 ) and Bazzo et al (2016) working with two wheat cultivars (CD 150 and Quartzo), four doses of N (0, 30, 60, and 90 kg ha ). However, Teixeira Filho et al (2010), while evaluating the influence of N doses and sources on wheat production and productivity components, observed that grain/seed yield was adjusted to a quadratic equation with a maximum efficiency dose estimated at 122 kg ha -1 of N, which is higher than the maximum evaluated in this study.…”

Section: Resultssupporting

confidence: 76%

Molybdenum application associated with nitrogen fertilization on yield and physiological potential of wheat seeds

Bazzo

Costa²,

Barbizan

et al. 2018

SCA

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Molybdenum (Mo) is a micronutrient that plays a fundamental role in the assimilation of nitrogen (N) in plants, and top-dressing N fertilization associated with different forms of molybdenum application can increase the yield and physiological potential of wheat seeds. The objective of this study was to evaluate the yield and physiological potential of wheat seeds treated with different forms of Mo application associated with N fertilization. The experiment was performed using the wheat cultivar CD150 in randomized blocks in split plots, with four replicates. Plots were evaluated for four forms of . In the subplots, four N rates (0, 30, 60, and 90 kg ha -1 N) were applied at the start of the tillering phase. We evaluated the following parameters: seed yield, mass of one thousand seeds, germination, first germination count, seedling root and shoot length, electrical conductivity, seedling emergence in sand, emergence speed index, and crude and soluble protein contents. The yield of wheat seeds increased with increasing rates of N in the top-dressing. Nitrogen fertilization associated with different forms of Mo application did not interfere with the crude and soluble protein contents or with any of the parameters related to the physiological potential of wheat seeds.

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Section: Resultssupporting

confidence: 76%

Molybdenum application associated with nitrogen fertilization on yield and physiological potential of wheat seeds

Bazzo

Costa²,

Barbizan

et al. 2018

SCA

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“…Conversely, other studies evaluating the effect of N topdressing on the germination of seeds submitted to the accelerated aging test did not observe responses of such a management technique on this trait, e.g. Kolchinski andSchuch (2003, 2004) in white oat, Nakagawa et al (1994) in black oat, Egewarth et al (2015) in canola, andZucareli et al (2012) in sweet corn.…”

Section: Resultsmentioning

confidence: 90%

“…Regardless of the application of the plant growth retardant, N topdressing led to an increase in seed productivity in Mauá da Serra. Kolchinski and Schuch (2003) 19, and UPF 18) combined with four N levels (0, 24, 48, and 73 kg.ha -1 ), and by Prando et al (2012a), who evaluated three wheat genotypes (cultivars 'BRS 208' and 'BRS Pardela', and the line 'IWT 04008') and four topdressing N levels (0, 40, 80, and 120 kg.ha -1 ) also observed an increase in seed productivity in response to the increase of N levels in coverage. According to Soratto et al (2007), N is capable of changing crop yield components and positively influencing seed productivity due to its multiple functions in plants, a fact that can have occurred with the cultivar 'IPR Afrodite' grown in Mauá da Serra.…”

Section: Resultsmentioning

confidence: 99%

Trinexapac-ethyl and topdressing nitrogen levels on the productivity and physiological quality of graniferous white oat seeds

et al. 2018

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The aim of this study was to evaluate the physiological quality of white oat seeds cultivated under different topdressing N levels combined with the plant growth retardant trinexapac-ethyl in two growing environments. The experiments were carried out in Londrina and Mauá da Serra Municipalities (PR, Brazil) with the cultivar ‘IPR Afrodite’. The experimental design was in randomized blocks, in a 4x2 factorial arrangement, with four replications. Treatments consisted of four N levels (0, 30, 60, and 90 kg.ha-1) combined or not with the plant growth retardant. Seed yield, 1000-seed weight, germination, first germination count, seedling length, seedling dry matter, accelerated aging, electrical conductivity, emergence speed index, and seedling emergence in sand were evaluated. Data were submitted to the analysis of variance and then to the F test and regression analysis up to the second degree (p≤0.05). The application of the plant growth retardant and N topdressing led to an increase in seed productivity in Mauá da Serra. N fertilization reduced seed quality, but this effect can be minimized, not observed or overlapped by the positive effect of the plant growth retardant. Such an effect depends on environmental characteristics and it was not observed in Londrina.

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“…Many reports indicate that environmental effects may interfere in the protein and oil contents in the oat caryopsis (Beber et al, 2002;Zhu et al, 2004;Peterson et al, 2005;Martinez et al, 2010). Humphreys et al (1994) and by Kolchinski & Schuch (2003 reported that application of nitrogen fertilizer increases protein content in the grains, and decreases oil content. Moreover, temperature variation during oat development may have great influence on lipid synthesis in the grain.…”

Section: Resultsmentioning

confidence: 99%

Adaptability and stability of white oat cultivars in relation to chemical composition of the caryopsis

Hawerroth

Carvalho

Oliveira

et al. 2013

Pesq. agropec. bras.

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-The objective of this work was to characterize the chemical properties of white oat (Avena sativa) caryopsis and to determine the adaptability and stability of cultivars recommended for cultivation in the state of Rio Grande do Sul, Brazil. The trials were carried out in the 2007, 2008 and 2009 crop seasons, in three municipalities: Augusto Pestana, Capão do Leão, and Passo Fundo. Fifteen cultivars were evaluated in a randomized block design, with four replicates. The contents of protein, lipid, and nitrogen-free extract were evaluated in the caryopsis. Cultivar performances for the measured characters varied according to location and year of cultivation. The cultivar URS Guapa showed high content of nitrogen-free extract and low contents of protein and lipid in the caryopsis. 'FAPA Louise' showed high content of lipid, whereas 'Albasul', 'UPF 15', and 'UPF 18' showed high content of protein and low content of nitrogen-free extract. There is no evidence of an ideal biotype for the evaluated characters, which could simultaneously show high average performance, adaptability to favorable and unfavorable environments, and stability.Index terms: Avena sativa, bissegmented linear regression, lipid, nitrogen-free extract, nutritional quality, protein. Adaptabilidade e estabilidade de cultivares de aveia-branca quanto à composição química da cariopse

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Atributos de desempenho industrial e qualidade de sementes em aveia branca em função da disponibilzação da adubação nitrogenada

Cited by 6 publications

References 2 publications

Molybdenum application associated with nitrogen fertilization on yield and physiological potential of wheat seeds

Molybdenum application associated with nitrogen fertilization on yield and physiological potential of wheat seeds

Trinexapac-ethyl and topdressing nitrogen levels on the productivity and physiological quality of graniferous white oat seeds

Adaptability and stability of white oat cultivars in relation to chemical composition of the caryopsis

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