Document Type
Article
Publication Date
2014
Keywords
Nitrogen stress, water stress, wheat quality, winter wheat (Triticum asetivum), yield loss
Abstract
Decreasing carbon (C) footprints by reducing nitrogen (N) and water inputs has been speculated to have negative impacts on wheat grain yield and flour processing quality. The objective of this study was to determine the impact of N and water stress on winter wheat grain yield, protein composition, and dough quality. Wheat fertilized at two N rates (unfertilized and recommended) was grown under water-stressed and well-watered environments. Nitrogen and water stress were measured using the 13C isotopic approach. Research showed that (1) N fertilizer and the water-management environment produced similar impacts on wheat quality and yield loss due to N stress and yield loss due to water stress (YLWS); (2) N fertilizer increased flour protein, dough stability, and relative concentration of glutenin (%Glu), unextractable polymeric protein (UPP), and relative amount of high-molecular-weight glutenin subunits (HMW-GS/LMW-GS); (3) the well-watered environment reduced protein contents when N mineralization was low, whereas it did not influence protein content when mineralization was high; and (4) the %Glu was negatively correlated with yield loss due to N stress (YLNS) and positively correlated with stability. This study showed that a clear understanding of the complex relationship between soil variability and climatic conditions should make it possible to develop adaptive management practices, increase profitability, and improve quality.
Publication Title
Communications in Soil Science and Plant Analysis
Volume
45
Issue
14
First Page
1894
Last Page
1905
Pages
14
Format
application/pdf
Language
en
DOI of Published Version
10.1080/00103624.2014.909833
Publisher
Taylor and Francis
Rights
Copyright © The Author(s)
Recommended Citation
Hyejin Park, David E. Clay, Robert G. Hall, Jai S. Rohila, Tulsi P. Kharel, Sharon A. Clay & Sanghun Lee (2014) Winter Wheat Quality Responses to Water, Environment, and Nitrogen Fertilization, Communications in Soil Science and Plant Analysis, 45:14, 1894-1905, DOI: 10.1080/00103624.2014.909833
Comments
This is open access article originally published in Communications in Soil Science and Plant Analysis, 45:14, 1894-1905, DOI:10.1080/00103624.2014.909833