Bread wheat quality under limiting environmental conditions: II – Rheological properties of Lebanese wheat genotypes

Sakr, Nada; Rhazi, Larbi; Aussenac, Thierry

doi:10.1016/j.jssas.2021.02.002

Cited by 9 publications

(8 citation statements)

References 22 publications

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“…In baking formulations with high FN flour, it is necessary to add α-amylase for bread loaf volume improvement (Posner and Hibbs, 2005). The obtained FN values in 2017-18 and 2018-19 were similar to the results of Šarčević et al (2014) and Sakr et al (2021).…”

Section: Accepted Papersupporting

confidence: 90%

“…The average results from the study of Šarčević et al (2014) showed higher EE and lower R/EE among different wheat cultivars, especially in the case of high level of nitrogen fertilization -190 mm and 1.3, respectively. Also, the values of alveograph parameter W were somewhat lower than the Lebanese wheat cultivars (Sakr et al, 2021).…”

Section: Accepted Papermentioning

confidence: 70%

“…Also, increase in WA with PC is in accordance with the one reported in Constantinescu et al (2011). The results from other studies showed higher WA among different wheat cultivars with average content of 61.8% (high level of nitrogen fertilization) and 60.0% (low level of nitrogen fertilization) in Croatia (Šarčević et al, 2014) or between 58.2-65.1% in Lebanon (Sakr et al, 2021), whereas SD was on a similar level.…”

Section: Accepted Papermentioning

confidence: 81%

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Variation in quality traits of newly developed Serbian wheat cultivars under different environmental conditions of Pannonian plain

Živančev

Mirosavljević

Aćin

et al. 2022

Italian Journal of Agronomy

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Introduction of new high-yielding wheat cultivars and intensification of high year-to-year variability require an additional update of information about environmental effects on main wheat quality parameters that is lacking for newly released cultivars in Serbia. The aim of this study was to determine the effect of growing seasons on the technological properties of new Serbian wheat cultivars, and to examine the relationships among the quality traits in different growing seasons. The experiment was set up in three growing seasons (2016-17, 2017-18 and 2018-19). A total of 13 recently developed wheat cultivars in Serbia and five most widespread local cultivars were evaluated to compare differences in end-use quality. Also, the influence of climatic conditions on the technological quality was examined as well as relations among them. Modern Serbian cultivars have improved grain yield but lower technological quality than the widespread Serbian cultivars. Changes in farinograph resistance and degree of softening were related to the differences growing seasons, cultivars and their interaction, while growing seasons had the highest effect on bread volume and extensograph parameters energy and ratio resistance and extensibility variation. Moreover, a strong positive correlation was found between protein content, sedimentation value, wet gluten content and water absorption with extensograph extensibility, and negative correlation with the second parameter of extensograph, ratio of resistance and extensibility.

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Section: Accepted Papersupporting

confidence: 90%

Section: Accepted Papermentioning

confidence: 70%

Section: Accepted Papermentioning

confidence: 81%

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Variation in quality traits of newly developed Serbian wheat cultivars under different environmental conditions of Pannonian plain

Živančev

Mirosavljević

Aćin

et al. 2022

Italian Journal of Agronomy

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“…In addition, the interaction effects of environment and genotype on gluten index have also been reported (Mutwali et al, 2016;Sakr et al, 2021). Previous studies have demonstrated that the variation in gluten index was affected by soil water environments (Flagella et al, 2010).…”

Section: N Accumulation At Maturity and N Remobilization A Ected Grai...mentioning

confidence: 94%

Simultaneously genetic selection of wheat yield and grain protein quality in rice–wheat and soybean–wheat cropping systems through critical nitrogen efficiency-related traits

Chen

Wang²,

Chen³

et al. 2022

Front. Plant Sci.

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Analyzing the contribution of nitrogen (N) uptake and its utilization in grain yield and protein quality-related traits in rice-wheat (RW) and soybean-wheat (SW) cropping systems is essential for simultaneous improvements in the two target traits. A field experiment with nine wheat genotypes was conducted in 2018–19 and 2019–20 cropping years to investigate N uptake and utilization-related traits associated with high wheat yield and good protein quality. Results showed that N uptake efficiency (NUpE) in the RW cropping system and N utilization efficiency (NUtE) in the SW cropping system explained 77.6 and 65.2% of yield variation, respectively, due to the contribution of fertile spikes and grain number per spike to grain yield varied depending on soil water and N availability in the two rotation systems. Lower grain protein content in the RW cropping system in comparison to the SW cropping system was mainly related to lower individual N accumulation at maturity, resulting from higher fertile spikes, rather than N harvest index (NHI). However, NHI in the SW cropping system accounted for greater variation in grain protein content. Both gluten index and post-anthesis N uptake were mainly affected by genotype, and low gluten index caused by high post-anthesis N uptake may be related to the simultaneous increase in kernel weight. N remobilization process associated with gluten quality was driven by increased sink N demand resulting from high grain number per unit area in the RW cropping system; confinement of low sink N demand and source capability resulted in low grain number per spike and water deficit limiting photosynthesis of flag leaf in the SW cropping system. CY-25 obtained high yield and wet gluten content at the expense of gluten index in the two wheat cropping systems, due to low plant height and high post-anthesis N uptake and kernel weight. From these results, we concluded that plant height, kernel weight, and post-anthesis N uptake were the critically agronomic and NUE-related traits for simultaneous selection of grain yield and protein quality. Our research results provided useful guidelines for improving both grain yield and protein quality by identifying desirable N-efficient genotypes in the two rotation systems.

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“…Four different bread wheat genotypes, selected for their potential tolerance/resistance to hydric stress and rust [25][26][27] by two agricultural research centers operating in dry zones (ICARDA and ACSAD, Bekaa Valley, Lebanon), are delivered by LARI (Bekaa Valley, Lebanon) to be the material of this study. These cultivar pedigrees are shown in Table 1.…”

Section: Plant Materialsmentioning

confidence: 99%

Bread Wheat Quality under Limiting Environmental Conditions: I-Molecular Properties of Storage Proteins and Starch Constituents in Mature Grains

Sakr¹,

Rhazi

Aussenac

2021

Agriculture

Self Cite

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To support the introduction of local soft wheat varieties, the Lebanese state has implemented, during recent years, an improvement program to select plant material with good productivity in semi-arid conditions that can lead to national production that can, at the same time, meet quality needs expressed by Lebanese processors. In the present study, the main biochemical components of grains conventionally associated with bread-making properties (storage proteins, starch polysaccharides) were physiochemically characterized for a panel of local soft wheat varieties selected. During the two consecutive years of cultivation, the post-flowering thermal constraints significantly modified the kinetics of accumulation of the major constituents by mainly limiting the grain filling time. The level of polymerization/aggregation (i.e., gliadin/glutenin ratio, unextractable polymeric protein (UPP) amount, molecular weight average of glutenins) of prolamins was very high. The reduction in the amount of starch was accompanied by a significant change in the amylopectin/amylose ratio. Finally, the genotypes studied were characterized by significantly different distributions of starch granules; the percentage of the volume occupied by A-type and B-type starch granules varied between genotypes for the two cropping years. All these observations must be considered because of their determining role in the technological aptitude of the flours generated.

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Bread wheat quality under limiting environmental conditions: II – Rheological properties of Lebanese wheat genotypes

Cited by 9 publications

References 22 publications

Variation in quality traits of newly developed Serbian wheat cultivars under different environmental conditions of Pannonian plain

Variation in quality traits of newly developed Serbian wheat cultivars under different environmental conditions of Pannonian plain

Simultaneously genetic selection of wheat yield and grain protein quality in rice–wheat and soybean–wheat cropping systems through critical nitrogen efficiency-related traits

Bread Wheat Quality under Limiting Environmental Conditions: I-Molecular Properties of Storage Proteins and Starch Constituents in Mature Grains

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