Influencing factors of sodium dodecyl sulfate sedimentation in bread wheat

Oelofse, Rachel Mercia; Labuschagne, Maryke; Deventer, C. S. van

doi:10.1016/j.jcs.2010.03.010

Cited by 17 publications

(18 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the current study, the environmental effects were greater than the genetic effects when determining the phenotypic variation of SDS trait. This result contradicts Oelofse et al (2010), who observed that the genetic component was responsible for over 80% of the variation. In general, the highest values of SDS were obtained by Fundacep Cristalino, Uppercase letters indicate significant differences among locations for the same cultivar, while lowercase letters indicate significant differences between cultivars in a particular location, according to Scott Knott test at 5% probability of error.…”

Section: Resultscontrasting

confidence: 67%

Characterization of brazilian wheat cultivars in terms of nitrogen use efficiency

et al. 2014

View full text Add to dashboard Cite

Nitrogen (N) management in wheat crop is one of the most studied agricultural practices in Brazil; however, there are few reports on its use efficiency. The objective of this study was to characterize 18 Brazilian wheat cultivars, which are representative and have been recently released to cultivation, for nitrogen use efficiency (NUE). The experiments were carried out in Pato Branco, Paraná, and Coxilha, Rio Grande do Sul, during the 2011 crop season. It was used a randomized block design with three replications, in factorial scheme (2 environments × 18 cultivars). Genetic variability was observed for nitrogen utilization efficiency by grains (NUtEg=47.6 to 81.1 kg kg -1 ) and nitrogen harvest index (NHI=71.3 to 84.6%) with significant effects relating to the environment of cultivation and performance of these traits. The evaluation of the protein concentration of grain by near infrared spectrometry (GPC N ) produced equivalent results to the direct analytical method of Kjeldahl (GPC K ), in Pato Branco (r=0.56) and Coxilha (RS) (r=0.80). However the CPG N overestimated the protein values by 16.85%. The GPC and protein yield were positively correlated with NUtEg and NHI. The best performance for the traits associated with NUE was observed for the following cultivars: Mirante, Quartzo, Fundacep Cristalino, Fundacep Raízes and CD 150. This is the first report of differences between Brazilian wheat cultivars for nitrogen use efficiency.Key words: Triticum aestivum L., grain yield, nitrogen harvest index, SDS sedimentation, grain protein concentration. Caracterização de cultivares de trigo em termos de eficiência do uso do nitrogênioResumo O manejo do nitrogênio (N) na cultura do trigo é uma das práticas agrícolas mais estudadas no Brasil, entretanto ainda são poucos os relatos sobre a sua eficiência de uso. O objetivo deste estudo foi caracterizar 18 cultivares de trigo brasileiras representativas e recentemente disponibilizados para cultivo quanto à eficiência do uso do N (EUN). Os experimentos foram executados em Pato Branco, PR, e Coxilha, RS, na safra agrícola de 2011. O delineamento experimental utilizado foi em blocos casualizados em esquema fatorial (2 ambientes × 18 cultivares), em três repetições. Foi possível identificar variabilidade genética para a eficiência do uso do nitrogênio pelos grãos (EUNg = 47,6 a 81,1 kg kg -1 N) e índice de colheita de nitrogênio (ICN = 71,3 a 84,6%), com efeito do local de cultivo sobre o desempenho desses parâmetros. A avaliação da concentração proteica dos grãos por espectrometria de infravermelho próximo (CPG N ) produziu resultados equivalentes ao método analítico direto de Kjeldahl (CPG K ), em Pato Branco, PR (r = 0,56), e Coxilha, RS (r = 0,80), porém o CPG N superestimou os resultados em 16,85%. A CPG K e o rendimento de proteína (RP) foram positivamente associados com a EUNg. As cultivares Mirante, Quartzo, Fundacep Cristalino, Fundacep Raízes e CD 150 apresentaram melhor desempenho para os caracteres associados à EUN. Esse é o primeiro relato que mostra di...

show abstract

Section: Resultscontrasting

confidence: 67%

Characterization of brazilian wheat cultivars in terms of nitrogen use efficiency

et al. 2014

View full text Add to dashboard Cite

show abstract

“…As it might be expected, the IS-SDS tended to be associated with agronomic variables just as they did with PROT, reaching a negative correlation only with GW. The absence of significant correlation between grain yield and IS-SDS contradicts the results obtained by other authors (Oelofse et al 2010), where both variables were negatively associated. The relationship between LASRC and agronomic variables was opposed to what was revealed by PROT.…”

Section: Discussioncontrasting

confidence: 94%

“…Sometimes grain protein content was not reflected in the quality of the flour, while the sodium dodecyl sulphate sedimentation test (IS-SDS) did (Peighambardoust et al 2011). A negative association between IS-SDS and GY, reported by Oelofse et al (2010), is attributed to the highly positive correlation between IS-SDS and PROT. The Lactic Acid SRC (LASRC) test is associated with glutenin network formation and gluten strength of flour.…”

Section: Introductionmentioning

confidence: 99%

Association between grain yield, grain quality and morpho-physiological traits along ten cycles of recurrent selection in bread wheat (Triticum aestivum L.)

Maich¹,

Steffolani²,

Rienzo³

et al. 2017

Cereal Research Communications

View full text Add to dashboard Cite

The objective of the present investigation was to examine the relationships between agronomical behavior and grain quality along ten cycles of a recurrent selection program performed under rainfed condition. Twenty-four lines, four for each one of the 0, 2, 4, 6, 8 and 10 cycles of recurrent selection, were evaluated for two consecutive years (2011 and 2012). The experimental lines were evaluated under conventional (CT) and no tillage (NT) systems. Grain yield and grain weight were determined and harvest index and grain number estimated. Flour protein content, sodium dodecyl sulphate sedimentation (IS-SDS) and lactic acid SRC (LASRC) were considered as end-use quality predictive tests. The Spearman correlation coefficient was used to measure the relationships among yield, its components and grain quality parameters. Within the context of CT, flour protein content was negatively associated with all the agronomic variables. The IS-SDS has a negative association with the grain weight; meanwhile, LASRC associated positively with all the agronomic variables. When wheat was grown in NT, the relationship between IS-SDS and harvest index, like LASRC with all agronomic traits, was positive. Confining the discussion to the CT results, after ten cycles of recurrent selection the highest grain yield achieved was accompanied by a decrease in protein percentage. However, the decrease in the percentage of protein in more advanced selection cycles was offset by an improvement of its quality.

show abstract

“…Wheat dough and dough-based multiple characteristics are influenced by irreplaceable rheological properties of grain that have strongly been influenced by the quantity and type of storage proteins in the grain endosperm (Shewry and Halford 2002). High-quality wheat for bread-making has a high protein concentration with other features such as high specific weight, protein quality (conferring strong doughs) (Oury and Godin 2007), HFN (indicating lower alphaamylase activity) (Smith and Gooding 1996), high sodium dodecyl sulphate (SDS) sedimentation volume (indicating gluten strength) (Oelofse et al 2012), and free of black points and fungal contamination (Gooding and Davies 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Genetic, climatic, and agronomic factors are the major players which control this inverse relationship. A grain quality estimate may be checked through SDS sedimentation volume test which derives the amount of gluten and protein quantity as well as quality (Oelofse et al 2012). Contrary to SDS sedimentation volume test, grain sulphur (S) concentration assesses the baking quality of cereals more accurately than crude protein concentration.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rht alleles on wheat grain yield and quality under high temperature and drought stress during booting and anthesis

Alghabari

Ihsan

Hussain

et al. 2015

Environ Sci Pollut Res

View full text Add to dashboard Cite

The present study examined the effects of gibberellin semi-sensitive reduced height (Rht) alleles on wheat grain yield and quality under high temperature and drought stress during booting and anthesis stages. Near-isogenic lines (NILs) of winter wheat (Rht (tall), Rht-B1b, Rht-D1b, Rht-B1c, Rht-8c, Rht-D1c, Rht-12) having background of Mercia and Maris Widgeon cultivars were compared under variable temperatures (day/night: 20/12, 27/19, 30/22, 33/25, 36/28, and 39/31 °C) and irrigation regimes. Pots were transferred to controlled thermal conditions (Saxcil growth chamber) during booting and anthesis stages and were maintained at field capacity (FC) or had water withheld. High temperature (>30 °C) and drought stress for seven consecutive days during booting and anthesis stages reduced the grain yield, while increased nitrogen (N) and sulphur (S) concentrations. A 50 % reduction in grain yield was fitted to have occurred at 37.4 °C for well-watered plants and at 31.4 °C for drought-stressed plants. The N and S concentrations were higher for severe dwarfs, whereas no significant differences were observed between tall and semi-dwarfs in Mercia. In the taller background (Maris Widgeon), N and S concentrations were significantly higher compared with that in Mercia. In Mercia, the severe dwarf Rht-D1c had higher Hagberg falling number (HFN) and sodium dodecyl sulphate (SDS) sedimentation volume. In both backgrounds, semi-dwarfs and severe dwarfs had higher HFN. Moreover, the SDS sedimentation volumes in Maris Widgeon were also higher than that in Mercia. Greater adaptability and improved grain quality traits suggested that severe dwarf Rht alleles are better able to enhance tolerance to high temperature and drought stress in wheat.

show abstract

Influencing factors of sodium dodecyl sulfate sedimentation in bread wheat

Cited by 17 publications

References 16 publications

Characterization of brazilian wheat cultivars in terms of nitrogen use efficiency

Characterization of brazilian wheat cultivars in terms of nitrogen use efficiency

Association between grain yield, grain quality and morpho-physiological traits along ten cycles of recurrent selection in bread wheat (Triticum aestivum L.)

Effect of Rht alleles on wheat grain yield and quality under high temperature and drought stress during booting and anthesis

Contact Info

Product

Resources

About