Genotype, environment, seeding rate, and top-dressed nitrogen effects on end-use quality of modern Nebraska winter wheat

Authors

Madhav Bhatta, University of Nebraska-LincolnFollow
Teshome Regassa, University of Nebraska-LincolnFollow
Devin J. Rose, University of Nebraska-LincolnFollow
P. Stephen Baenziger, University of Nebraska-LincolnFollow
Kent M. Eskridge, University of Nebraska-LincolnFollow
Dipak K. Santra, University of Nebraska-LincolnFollow
Rachana Poudel, University of Nebraska-LincolnFollow

ORCID IDs

Kent M. Eskridge

Document Type

Article

Date of this Version

2017

Citation

Published in Journal of the Science of Food and Agriculture 97 (2017), pp 5311–5318. doi 10.1002/jsfa.8417

Corrigendum published in Journal of the Science of Food and Agriculture 98 (2018), pp 2830. doi 10.1002/jsfa.8916

PubMed ID: 28485012

Comments

Copyright © 2017 Society of Chemical Industry. Published by John Wiley. Used by permission.

Abstract

Background: Fine-tuning production inputs such as seeding rate, nitrogen (N), and genotype may improve end-use quality of hard red winter wheat (Triticum aestivium L.) when growing conditions are unpredictable. Studies were conducted at the Agronomy Research Farm (ARF; Lincoln, NE, USA) and the High Plains Agricultural Laboratory (HPAL; Sidney, NE, USA) in 2014 and 2015 in Nebraska, USA, to determine the effects of genotype (6), environment (4), seeding rate (3), and flag leaf top-dressed N (0 and 34 kg N ha⁻¹) on the end-use quality of winter wheat.

Results: End-use quality traits were influenced by environment, genotype, seeding rate, top-dressed N, and their interactions. Mixograph parameters had a strong correlation with grain volume weight and flour yield. Doubling the recommended seeding rate and N at the flag leaf stage increased grain protein content by 8.1% in 2014 and 1.5% in 2015 at ARF and 4.2% in 2014 and 8.4% in 2015 at HPAL.

Conclusion: The key finding of this research is that increasing seeding rates up to double the current recommendations with N at the flag leaf stage improved most of the end-use quality traits. This will have a significant effect on the premium for protein a farmer could receive when marketing wheat.