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

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.