scholarly journals Effect of Intensive Nitrogen Fertilization During Stem Elongation (INFSE) on Grain Yield and Grain Protein Content in a Bread Wheat Cultivar “Minaminokaori”

2017 ◽  
Vol 86 (4) ◽  
pp. 319-328
Author(s):  
Keisuke Mizuta ◽  
Hideki Araki ◽  
Kazuhiro Nakamura ◽  
Hitoshi Matsunaka ◽  
Ken-ichi Tanno ◽  
...  
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Bread Wheat ◽  
Nitrogen Fertilization ◽  
Wheat Cultivar ◽  
Stem Elongation ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Bread Wheat Cultivar

scholarly journals Effects of Foliar Spraying of Urea on Grain Protein Content and Nitrogen Accumulation in Plant Organs in Bread Wheat Cultivar “Setokirara”

2018 ◽  
Vol 87 (4) ◽  
pp. 291-297
Author(s):  
Shunji Inaba ◽  
Tadashi Takahashi ◽  
Eiichiro Kamada ◽  
Motoharu Murata ◽  
Akihiko Ikejiri ◽  
...  
Keyword(s):  
Protein Content ◽  
Bread Wheat ◽  
Wheat Cultivar ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Nitrogen Accumulation ◽  
Plant Organs ◽  
Bread Wheat Cultivar

scholarly journals Statistical Modeling of Phenotypic Plasticity under Abiotic Stress in Triticum durum L. and Triticum aestivum L. Genotypes

Agronomy ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 139 ◽  
Author(s):  
Abdullah Jaradat
Keyword(s):  
Abiotic Stress ◽  
Phenotypic Plasticity ◽  
Population Density ◽  
Grain Yield ◽  
Protein Content ◽  
Bread Wheat ◽  
Abiotic Stresses ◽  
Yield Components ◽  
Grain Protein Content ◽  
Grain Protein

Future challenges to the role of durum and bread wheat in global food security will be shaped by their potential to produce larger yields and better nutritional quality, while increasingly adapting to multiple biotic and abiotic stresses in the view of global climate change. There is a dearth of information on comparative assessment of phenotypic plasticity in both wheat species under long-term multiple abiotic stresses. Phenotypic plasticities of two durum and bread wheat genotypes were assessed under increasing abiotic and edaphic stresses for six years. Combinations of normal and reduced length of growing season and population density, with or without rotation, generated increasing levels of competition for resources and impacted phenotypic plasticity of several plant and yield attributes, including protein and micronutrients contents. All the phenotypic plasticity (PPs) estimates, except for the C:N ratio in both genotypes and grain protein content in T. aestivum genotype, were impacted by abiotic stresses during the second stress phase (PS II) compared with the first (PS I); whereas, covariate effects were limited to a few PPs (e.g., biomass, population density, fertile tillers, grain yield, and grain protein content). Discrimination between factor levels decreased from abiotic phases > growth stages > stress treatments and provided selection criteria of trait combinations that can be positively resilient under abiotic stress (e.g., spike harvest and fertility indices combined with biomass and grain yield in both genotypes). Validation and confirmatory factor models and multiway cluster analyses revealed major differences in phenotypic plasticities between wheat genotypes that can be attributed to differences in ploidy level, length of domestication history, or constitutive differences in resources allocation. Discriminant analyses helped to identify genotypic differences or similarities in the level of trait decoupling in relation to the strength of their correlation and heritability estimates. This information is useful in targeted improvement of traits directly contributing to micronutrient densities, yield components, and yield. New wheat ideotype(s) can be designed for larger grain yield potential under abiotic stress by manipulating yield components that affect kernels m−2 (e.g., number of tillers, number of florets per spikelet, and eventually spike fertility and harvest indices) without impacting nutrient densities and kernel weight, thus raising harvest index beyond its current maximum.

Modification of the Sink/Source Relationships in Bread Wheat and its Influence on Grain Yield and Grain Protein Content

1986 ◽  
Vol 157 (4) ◽  
pp. 245-254 ◽  
Author(s):  
B. Borghi ◽  
M. Corbellini ◽  
M. Cattaneo ◽  
M. E. Fornasari ◽  
L. Zucchelli
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Bread Wheat ◽  
Grain Protein Content ◽  
Grain Protein
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