Nitrogen Uptake in High and Low Protein Wheat
Author Information
Author(s): Abiola Samson Olaniyi, Lacasa Josefina, Carver Brett F., Arnall Brian D., Ciampitti Ignacio A., de Oliveira Silva Amanda
Primary Institution: Oklahoma State University
Hypothesis
Do high protein wheat genotypes exhibit increased nitrogen accumulation and partitioning compared to low protein genotypes under varying nitrogen conditions?
Conclusion
High-protein wheat genotypes showed different nitrogen remobilization patterns compared to low-protein genotypes, with leaf nitrogen remobilization playing a critical role in achieving higher grain protein concentration.
Supporting Evidence
- The high-protein genotypes showed greater grain protein concentration without differences in grain yield.
- Low-protein genotypes exhibited higher nitrogen utilization efficiency compared to high-protein genotypes.
- Total nitrogen accumulation at maturity was positively correlated with grain yield.
- N remobilization patterns differed significantly between high- and low-protein genotypes.
Takeaway
This study looked at how different types of wheat use nitrogen, finding that high-protein wheat can take in and use nitrogen better than low-protein types, which helps them make more protein in their grains.
Methodology
The study used a randomized complete block design to evaluate four wheat genotypes under two nitrogen rates across two locations over four growing seasons.
Limitations
The study was conducted in specific environments which may limit the generalizability of the findings to other conditions.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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