Uma proposta de seleção para caracteres quantitativos e qualitativos em aveia

Benin, Giovani; Carvalho, Fernando Irajâ Félix de; Oliveira, Antônio Costa de; Lorencetti, Claudir; Maia, M. B.; Marchioro, Volmir Sérgio; Freitas, Fabio Almeida de; Hartwig, Irineu

doi:10.1590/s0103-84782004000300008

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…RL of cultivars Catuaí Amarelo IAC 62 and Iapar 59 did not differ significantly in the presence or absence of aluminum at different phases, showing that these cultivars presented some mechanism of tolerance to aluminum, since treatment +Al / +Al did not differ from the control (Table 2) and root growth of these cultivars was stimulated in the presence of aluminum (Table 3). Benin et al (2004) evaluated oat genotypes and observed root growth retaking values that allowed a perfect discrimination between the sensitive and tolerant genotypes. Similar results were obtained by Freire et al (1987) in rice, by Baligar et al (1990) in sorghum and in wheat by Costa et al (2003).…”

Section: Resultsmentioning

confidence: 99%

Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Macedo

Lopes

Amaral

et al. 2011

Braz. arch. biol. technol.

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Section: Resultsmentioning

confidence: 99%

Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Macedo

Lopes

Amaral

et al. 2011

Braz. arch. biol. technol.

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“…Obteve-se a solução nutritiva padrão com a diluição em 5,5 L de água destilada: A avaliação do caráter tolerância ao alumínio tóxico foi efetuada pela medição da retomada do crescimento da raiz (REC) com uma régua, a partir do ponto de dano causado pela toxicidade do alumínio na raiz principal (SILVA et al, 2004). Os dados obtidos foram submetidos à análise de variância e teste de Tukey visando classificar os genótipos após a fixação do fator de interesse.…”

Section: Methodsunclassified

“…Desse modo, medindo a retomada do crescimento de raiz após o tratamento com alumínio, é possível separar fenotipicamente os genótipos com tolerância ou sensíbilidade (CAMARGO e OLIVEIRA, 1981;ANIOL, 1990;MINELLA e SORRELS, 1992;RIEDE e ANDERSON, 1996;BENIN et al, 2004).…”

Section: Introductionunclassified

Tolerância ao alumínio em cultivares de aveia branca sob cultivo hidropônico

et al. 2007

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RESUMOO emprego do cultivo hidropônico para avaliar a tolerância à toxicidade pelo alumínio em genótipos de aveia pode ser feito por meio da medida da retomada do crescimento de raiz. Avaliaram-se 12 cultivares de aveia branca indicadas para o cultivo no Sul do Brasil com o intuito de caracterizar a tolerância ao alumínio, de maneira a ser estrategicamente recomendadas e/ou incluídas em blocos de cruzamento na obtenção de constituições genéticas de elevado potencial produtivo e tolerante ao íon metálico. Foram utilizadas doses de 10, 15 e 20 mg L -1 de alumínio na solução hidropônica e o delineamento experimental adotado foi o completamente casualizado, com três repetições, seguindo o esquema fatorial (12 x 3). As doses empregadas são altamente eficientes na identificação de genótipos de aveia tolerantes e sensíveis ao alumínio tóxico. As cultivares UPF 16, URS 21, UFRGS 14, UPF 19 e UFRGS 17 expressam tolerância.Palavras-chave: Avena sativa L., solução nutritiva, melhoramento genético, retomada do crescimento de raiz. ABSTRACT TOLERANCE TO THE ALUMINUM IN OAT CULTIVARS UNDER HYDROPONIC CULTUREThe use of hidroponic culture to evaluate tolerance to aluminum toxicity in oat genotypes can be performed by measuring root regrowth, allowing phenotypically to discriminate tolerant genetic constitutions sensitivity. Twelve white oat cultivars indicated for cultivation in Southern Brazil were evaluated aiming at to characterize their aluminum tolerance, in order to use them as parents in crosses or to recommend them for in cultivation regions. Aluminum concentration of 10, 15 and 20 mg L -1 were used in the hydroponic solution arranged in complete randomized blocks with three replications in 12 x 3 factorial designs. Concentrations of 10, 15 and 20 mg L -1 were highly efficient for the identification of tolerant and sensitive oat genotypes. Cultivars UPF 16, URS 21, UFRGS 14, UPF 19 and UFRGS 17 showed aluminum.

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“…Year x genotype interaction was significant for 1000-grain weight and proteins in the grain. Regarding quantitative variables, environment changes or variations usually cause interference with these variables, due to their genetic complexity (Benin et al, 2004). Test weight variable revealed no interaction between treatment factors, and comparisons were held separately for each factor.…”

Section: Characterization Of Traitsmentioning

confidence: 99%

Effects of sources and split application of nitrogen fertilizer on wheat genotypes performance

Ferrari¹,

Szareski²,

Nardino³

et al. 2016

Aust J Crop Sci

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Wheat stands out as one of the main agricultural cereals in the world, used in human and animal feed. The aim of this study was to investigate the effect of using different sources and split application of nitrogen fertilizer on the yield performance of wheat genotypes in two farming seasons to develop alternatives for wheat farmers. The experiment was conducted in the experimental area of the Plant Breeding and Production Laboratory, in the farming seasons of 2012 and 2013. A split-plot experimental design was used with six topdressing nitrogen fertilization strategies, three nitrogen sources and five wheat genotypes as treatments. A number of variables such as grain yield, protein percentage in the grains, 1000-grain weight and test weight were assessed. The results showed that split application of nitrogen fertilization in tillering, booting and flowering stages increases the protein percentage (2.34%) and does not reduce grain yield due to full implementation of fertilizing at tillering stage. Nitrogen fertilizer in tillering, booting and flowering sources with ammonium nitrate and urea enhanced the grain yield (7.75%), protein percentage (11.54%) using source liquid.

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Uma proposta de seleção para caracteres quantitativos e qualitativos em aveia

Cited by 4 publications

References 8 publications

Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Tolerância ao alumínio em cultivares de aveia branca sob cultivo hidropônico

Effects of sources and split application of nitrogen fertilizer on wheat genotypes performance

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