Correlation between fertilization and baking quality of winter wheat cultivars

Abstract The paper presents a statistical analysis of weight and diameter of kernel obtained for eight investigated winter wheat cultivars. Preliminary analyses of experimental results, such as compliance with a normal distribution, equality of variance for particular cultivars, and occurrence of outliers proved that there is no justification for the use of a traditional one-way analysis of variance for verification of hypotheses according to which weight and diameter of grains of the investigated winter wheat cultivars do not differ. A nonparametric Kruskal-Wallis test was used for verification of hypotheses which based on the experimental results enabled to reject both hypotheses. Further, simultaneous average weight and diameters of grain of the investigated cultivars were compared with the use of Nemenyi-Dunn test. The applied test enabled to conclude which cultivars had a significantly higher weight than the others. Analogous comparisons were carried out for the diameter of kernels of the investigated winter wheat cultivars.

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Yield and protein quality of five soft red winter wheat cultivars as affected by nitrogen fertilization rate

Communications in Soil Science and Plant Analysis ◽

10.1080/00103627809366819 ◽

1978 ◽

Vol 9 (5) ◽

pp. 415-428 ◽

Cited By ~ 4

Author(s):

L. R. Nelson ◽

C. T. Young ◽

M. J. Bitzer

Keyword(s):

Winter Wheat ◽

Nitrogen Fertilization ◽

Protein Quality ◽

Fertilization Rate ◽

Wheat Cultivars ◽

Soft Red Winter Wheat ◽

Winter Wheat Cultivars ◽

Red Winter Wheat

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Is a Change of Protein Composition after Late Application of Nitrogen Sufficient to Improve the Baking Quality of Winter Wheat?

Agriculture ◽

10.3390/agriculture9050101 ◽

2019 ◽

Vol 9 (5) ◽

pp. 101 ◽

Cited By ~ 2

Author(s):

Azin Rekowski ◽

Monika A. Wimmer ◽

Günter Henkelmann ◽

Christian Zörb

Keyword(s):

Winter Wheat ◽

Storage Proteins ◽

Production Systems ◽

Polyacrylamide Gel Electrophoresis ◽

Sodium Dodecyl ◽

Protein Composition ◽

N Fertilization ◽

Baking Quality ◽

Winter Wheat Cultivars

Concentration and composition of storage proteins affect the baking quality of wheat. Although both are influenced by late nitrogen fertilization, it is not clear whether compositional changes are sufficient to improve the baking quality, and whether such effects are cultivar specific. In a pot experiment, two winter wheat cultivars belonging to different quality classes were supplied with two levels of late N fertilizer. Protein subunits were analysed by SDS-PAGE (Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis). Late N supply increased grain yield and protein content in both cultivars, but improved baking quality only in Discus, correlated with stronger changes in glutenin and gliadin fractions. Where baking quality was improved, this occurred at the lower late N level. Overall, the composition rather than the amount of gluten proteins was decisive for flour quality. Measures for enhancing grain protein concentration and composition are less necessary for cultivars such as Rumor in order to achieve optimum baking quality. These results open up an opportunity to reduce N fertilization in wheat production systems.

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Alleles of the GRF3-2A Gene in Wheat and Their Agronomic Value

International Journal of Molecular Sciences ◽

10.3390/ijms222212376 ◽

2021 ◽

Vol 22 (22) ◽

pp. 12376

Author(s):

Mikhail S. Bazhenov ◽

Anastasiya G. Chernook ◽

Ludmila A. Bespalova ◽

Tatiana I. Gritsay ◽

Nadezhda A. Polevikova ◽

...

Keyword(s):

Molecular Markers ◽

Winter Wheat ◽

Grain Filling ◽

Wheat Cultivars ◽

Rare Mutation ◽

Krasnodar Krai ◽

Milling Quality ◽

Winter Wheat Cultivars ◽

Spring Wheat Cultivar

The Growth-regulating factors (GRF) are a family of plant-specific transcription factors that have roles in plant growth, development and stress response. In this study the diversity of the TaGRF3-2A (TraesCS2A02G435100) gene was investigated in Russian bread wheat germplasm by means of next generation sequencing and molecular markers, and the results compared with those from multiple wheat genome and exome sequencing projects. The results showed that an allele possessing c.495G>T polymorphism found in Bezostaya 1 and designated as TaGRF3-2Ab, is connected with earlier heading and better grain filling under conditions of the Krasnodar Krai. TaGRF3-2Ab is more frequent among Russian winter wheat cultivars than in other germplasms found in the world, implying that it is adaptive for the Chernozem region. A new rare mutation of the TaGRF3-2A was found in the spring wheat cultivar Novosibirskaya 67. The molecular markers developed will facilitate utilization of TaGRF3-2A mutations in future agronomic studies and wheat improvement. Albeit GRF3-2Ab may be good at maintaining high milling quality of the grain, it should be used with caution in breeding of winter wheat cultivars in the perspective of climate change.

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