Proteína e qualidade de sementes de feijão (Phaseolus vulgaris L.) em função da adubação nitrogenada em plantio direto

Gomes, Francisco Guilhien; Sá, Marco Eustáquio de

doi:10.1590/s0101-31222010000100004

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…For unfolding N rates within each irrigation management, there were quadratic adjustments to the crude protein content in seeds with the use of Hargreaves-Samani and PenmanMonteith, being the maximum contents obtained with 118 and 77 kg ha -1 N, respectively; however, there was no adjustment of this variable to N rates when using the management by Class A pan. Similar results were obtained by Bordin et al (2003), Gomes Junior et al (2005, Toledo et al (2009) andGomes Junior et al (2010), who found quadratic adjustment of crude protein in response to N topdressing rates, and the maximum contents achieved with rates between 70 and 120 kg ha -1 N. Moreover, these results indicate that different N rates promote increase in the N content in the common bean seeds, resulting in a higher crude protein content. This occurs because the N absorbed by the plant combines itself with carbon skeletons to produce proteins that are broken, translocated and stored in grains in the form of proteins and amino acids (GOMES JUNIOR et al, 2005).…”

Section: Resultssupporting

confidence: 85%

“…In Brazil, fertilization with nitrogen (N) as topdressing is a practice that has provided increments on the physiological quality and protein content of common bean seeds (BORDIN et al, 2003;GOMES JUNIOR et al, 2005;FARINELLI et al, 2006;TOLEDO et al, 2009;GOMES JUNIOR et al, 2010). The nutrient wich the common bean absorbs the most is N, being necessary for the chlorophyll synthesis as part of this molecule is involved in the photosynthesis.…”

Section: Introductionmentioning

confidence: 99%

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Irrigation and nitrogen management in protein content and quality of common bean seeds

Silva¹,

Souza²,

Silva³

et al. 2017

Biosci. J.

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ABSTRACT:The aim of this study was to investigate the influence of different irrigation managements and nitrogen topdressing rates on the protein content and physiological quality of common bean seeds. Trial was conducted at Universidade Estadual de Mato Grosso do Sul, Unidade Universitária de Aquidauana from June to September, 2010. Experimental design was a randomized block in a split plot, using three blocks and two replications within each block. Plots corresponded to three irrigation managements: Hargreaves-Samani, Penman-Montheith and Class A pan. Subplots were represented by four N topdressing rates (zero, 50, 100 and 150 kg ha -1 ). The following variables were evaluated: 100-seed mass, nitrogen and crude protein content in seeds, germination at field, germination at laboratory, accelerated aging and germination speed index. There was a significant interaction between the different irrigation management and nitrogen topdressing rates for nitrogen and crude protein content in seeds, germination at laboratory and emergence speed index. Levels between 70 and 120 kg ha -1 N in conjunction with irrigation management by Hargreaves-Samani method provide better physiological quality of common bean seeds.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Irrigation and nitrogen management in protein content and quality of common bean seeds

Silva¹,

Souza²,

Silva³

et al. 2017

Biosci. J.

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show abstract

“…3. The nitrogen concentration in the plant is related to the protein synthesis (TAIZ; ZEIGER, 2013), as verified by Gomes Júnior and Sá (2010) in the bean crop.…”

Section: According Tomentioning

confidence: 88%

Alternative substrates in different containers for production of conilon coffee seedlings

Jaeggi¹,

Saluci²,

Rodrigues³

et al. 2018

C.Sci.

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Different substrates and containers influence the production of coffee seedlings, which can reduce production costs, both with alternative substrates and with containers of smaller volumes of substrates. The aim the present study was to evaluate the viability of alternative substrates in different containers for production of Conilon coffee (Coffea canephora Pierre ex Froehner) seedlings in the nursery of the Federal Institute of Espírito Santo -Campus of Alegre, ES, Brazil. The experimental design was a randomized complete block design with three replications, in split-plot with three plots and four subplots. The plots consisted of three containers (120 cm³ tube, 280 cm³ tube and 615 cm³ bag), and the subplots of four substrates (S1 -Conventional, S2 -Legume compost, S3 -Grass compost, S4 -Vermicompost). At 165 days after sowing, the evaluated variables were shoot and root dry mass, number of leaves, shoot height, leaf area, Dickson quality index, shoot/root ratio, root length, nitrogen and total crude protein. The alternative substrates (Legume compost, Grass compost and Vermicompost) were efficient for production of Conilon coffee seedlings and can replace the conventional substrate at this development stage, providing good quality seedlings. The major developments were observed in the containers with the highest volume (280 cm³ tube and 615 cm³ bag) and reflected directly on the quality of seedlings.

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“…Nitrogen application resulted in increased soybean seed vigour. Nitrogen applied in the vegetative phase may positively impact seed vigour (Zucareli et al, 2012) as it increases protein contents (Gomes Júnior and Sá, 2010). Some proteins stabilise cell membranes, thereby increasing the physiological performance of the seed (Peske et al, 2012).…”

Section: Effect Of Nitrogen On Physiological Seed Qualitymentioning

confidence: 99%

“…Gomes Júnior and Sá (2010) evaluated the effect of nitrogen application on the physiological quality of bean seeds and observed an increase in crude protein and total soluble protein contents. The reduction of soluble seed protein values negatively affects physiological quality (Gomes Júnior and Sá, 2010). Thus, in general, favourable temperatures and solar radiation, in association with adequate nitrogen fertilisation, facilitates plant growth and improves the physiological quality of the seeds.…”

Section: Effect Of Nitrogen On Physiological Seed Qualitymentioning

confidence: 99%

Soybean growth, solar energy conversion and seed vigour affected by different nitrogen (N) doses

Aisenberg¹,

Koch²,

Pimentel³

et al. 2018

Aust J Crop Sci

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The objective of this study was to evaluate soybean growth, conversion of solar energy and seed vigour of plants cultivated with different nitrogen doses. We carried out experiments using the cultivar BMX Potência RR belongs to the maturation group 6.7, presenting an indeterminate growth habit. The experimental design was completely randomised with four replications in a 4 x 8 factorial scheme (four nitrogen doses and eight collection periods). In the Vn stage of soybean development, we applied four different nitrogen fertilisation doses, i.e. 0, 25, 50 and 75 Kg N ha -1 in the form of urea (45% of N). We evaluated leaf area (A f ), leaf dry mass (W f ), stem (W c ), roots (W r ) and pods (W v ), dry matter production rate (C t ), relative growth rate (R w ), net assimilation (E a ), rate, leaf area ratio (S a ), solar energy conversion factor (ξ), leaf area ratio (F a ) and leaf mass (F w ), dry matter partition between plant structures, seedling emergence (E) and the emergence speed index (IVE) of the seedlings originated from the seeds produced. The experiment was conducted throughout the crop cycle. Nitrogen application positively impacted soybean growth; a nitrogen dose of 50 Kg ha -1 resulted in highest values of W t . However, plants subjected to 75 Kg N ha -1 reached higher R w and L values. Nitrogen fertilisation applied in the stage Vn facilitated plant growth, enhanced the conversion of solar energy and resulted in higher seed vigour. Keywords:Glycine max (L.); relative growth rate; net assimilation rate; emergence; emergence speed index. Abbreviations: A f _Leaf area, C t _Dry matter production rate, E a _Net assimilation rate, E_Emergence, F a _ Leaf area ratio, F w _And leaf mass, IVE_And the emergence speed index, L_Leaf area index, N_Nitrogen, R w _Relative growth rate, S a _Leaf area ratio, W c _Stem, W f _Leaf dry mass, W r _Roots, W v _And pods, ξ_Solar energy conversion factor.

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Proteína e qualidade de sementes de feijão (Phaseolus vulgaris L.) em função da adubação nitrogenada em plantio direto

Cited by 13 publications

References 10 publications

Irrigation and nitrogen management in protein content and quality of common bean seeds

Irrigation and nitrogen management in protein content and quality of common bean seeds

Alternative substrates in different containers for production of conilon coffee seedlings

Soybean growth, solar energy conversion and seed vigour affected by different nitrogen (N) doses

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