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Agroclimatology and Wheat Production: Coping with Climate Change

Cereal production around the world is critical to the food supply for the human population. Crop productivity is primarily determined by a combination of temperature and precipitation because temperatures have to be in the range for plant growth and precipitation has to supply crop water requirement...

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Autores principales: Hatfield, Jerry L., Dold, Christian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5826184/
https://www.ncbi.nlm.nih.gov/pubmed/29515617
http://dx.doi.org/10.3389/fpls.2018.00224
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author Hatfield, Jerry L.
Dold, Christian
author_facet Hatfield, Jerry L.
Dold, Christian
author_sort Hatfield, Jerry L.
collection PubMed
description Cereal production around the world is critical to the food supply for the human population. Crop productivity is primarily determined by a combination of temperature and precipitation because temperatures have to be in the range for plant growth and precipitation has to supply crop water requirements for a given environment. The question is often asked about the changes in productivity and what we can expect in the future and we evaluated the causes for variation in historical annual statewide wheat grain yields in Oklahoma, Kansas, and North Dakota across the Great Plains of United States. Wheat (Triticum aestivum L.) is adapted to this area and we focused on production in these states from 1950 to 2016. This analysis used a framework for annual yields using yield gaps between attainable and actual yields and found the primary cause of the variation among years were attributable to inadequate precipitation during the grain-filling period. In Oklahoma, wheat yields were reduced when April and May precipitation was limited (r(2) = 0.70), while in Kansas, May precipitation was the dominant factor (r(2) = 0.78), and in North Dakota June–July precipitation was the factor explaining yield variation (r(2) = 0.65). Temperature varied among seasons and at the statewide level did not explain a significant portion of the yield variation. The pattern of increased variation in precipitation will cause further variation in wheat production across the Great Plains. Reducing yield variation among years will require adaptation practices that increase water availability to the crop coupled with the positive impact derived from other management practices, e.g., cultivars, fertilizer management, etc.
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spelling pubmed-58261842018-03-07 Agroclimatology and Wheat Production: Coping with Climate Change Hatfield, Jerry L. Dold, Christian Front Plant Sci Plant Science Cereal production around the world is critical to the food supply for the human population. Crop productivity is primarily determined by a combination of temperature and precipitation because temperatures have to be in the range for plant growth and precipitation has to supply crop water requirements for a given environment. The question is often asked about the changes in productivity and what we can expect in the future and we evaluated the causes for variation in historical annual statewide wheat grain yields in Oklahoma, Kansas, and North Dakota across the Great Plains of United States. Wheat (Triticum aestivum L.) is adapted to this area and we focused on production in these states from 1950 to 2016. This analysis used a framework for annual yields using yield gaps between attainable and actual yields and found the primary cause of the variation among years were attributable to inadequate precipitation during the grain-filling period. In Oklahoma, wheat yields were reduced when April and May precipitation was limited (r(2) = 0.70), while in Kansas, May precipitation was the dominant factor (r(2) = 0.78), and in North Dakota June–July precipitation was the factor explaining yield variation (r(2) = 0.65). Temperature varied among seasons and at the statewide level did not explain a significant portion of the yield variation. The pattern of increased variation in precipitation will cause further variation in wheat production across the Great Plains. Reducing yield variation among years will require adaptation practices that increase water availability to the crop coupled with the positive impact derived from other management practices, e.g., cultivars, fertilizer management, etc. Frontiers Media S.A. 2018-02-20 /pmc/articles/PMC5826184/ /pubmed/29515617 http://dx.doi.org/10.3389/fpls.2018.00224 Text en Copyright © 2018 Hatfield and Dold. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Hatfield, Jerry L.
Dold, Christian
Agroclimatology and Wheat Production: Coping with Climate Change
title Agroclimatology and Wheat Production: Coping with Climate Change
title_full Agroclimatology and Wheat Production: Coping with Climate Change
title_fullStr Agroclimatology and Wheat Production: Coping with Climate Change
title_full_unstemmed Agroclimatology and Wheat Production: Coping with Climate Change
title_short Agroclimatology and Wheat Production: Coping with Climate Change
title_sort agroclimatology and wheat production: coping with climate change
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5826184/
https://www.ncbi.nlm.nih.gov/pubmed/29515617
http://dx.doi.org/10.3389/fpls.2018.00224
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