Open Access
Global Synthesis of Drought Effects on Maize and Wheat Production
TLDR
In this paper, the authors collected data from peer-reviewed publications between 1980 and 2015 which examined maize and wheat yield responses to drought using field experiments and performed unweighted analysis using the log response ratio to calculate the bootstrapped confidence limits of yield responses and calculated drought sensitivities with regards to those covarying factors.Abstract:
Drought has been a major cause of agricultural disaster, yet how it affects the vulnerability of maize and wheat production in combination with several co-varying factors (i.e., phenological phases, agro-climatic regions, soil texture) remains unclear. Using a data synthesis approach, this study aims to better characterize the effects of those co-varying factors with drought and to provide critical information on minimizing yield loss. We collected data from peer-reviewed publications between 1980 and 2015 which examined maize and wheat yield responses to drought using field experiments. We performed unweighted analysis using the log response ratio to calculate the bootstrapped confidence limits of yield responses and calculated drought sensitivities with regards to those co-varying factors. Our results showed that yield reduction varied with species, with wheat having lower yield reduction (20.6%) compared to maize (39.3%) at approximately 40% water reduction. Maize was also more sensitive to drought than wheat, particularly during reproductive phase and equally sensitive in the dryland and non-dryland regions. While no yield difference was observed among regions or different soil texture, wheat cultivation in the dryland was more prone to yield loss than in the non-dryland region. Informed by these results, we discuss potential causes and possible approaches that may minimize drought impacts.read more
Citations
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Crop Production under Drought and Heat Stress: Plant Responses and Management Options
Shah Fahad,Ali Ahsan Bajwa,Usman Nazir,Shakeel Ahmad Anjum,Ayesha Farooq,Ali Zohaib,Sehrish Sadia,Wajid Nasim,Steve W. Adkins,Shah Saud,Shah Saud,Muhammad Ihsan,Hesham F. Alharby,Chao Wu,Depeng Wang,Jianliang Huang,Jianliang Huang +16 more
TL;DR: A comprehensive account of conventional as well as modern approaches to deal with heat and drought stresses have been presented here and a side-by-side critical discussion on salient responses and management strategies for these two important abiotic stresses provides a unique insight into the phenomena.
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Agriculture in 2050: Recalibrating Targets for Sustainable Intensification
Mitchell C. Hunter,Richard G. Smith,Meagan E. Schipanski,Lesley W. Atwood,David A. Mortensen +4 more
TL;DR: This work states that agriculture in 2050: Recalibrating Targets for Sustainable Intensification should be considered as a priority for policy-makers as well as the private sector.
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Heat and Drought Stresses in Crops and Approaches for Their Mitigation.
TL;DR: Recent progress in key areas relevant to plant drought and heat tolerance are presented and an overview and implications of physiological, biochemical and genetic aspects in the context of heat and drought are presented.
Journal ArticleDOI
Excessive rainfall leads to maize yield loss of a comparable magnitude to extreme drought in the United States
TL;DR: Observational evidence from crop yield and insurance data is presented that excessive rainfall can reduce maize yield up to −34% in the United States relative to the expected yield from the long‐term trend, comparable to theUp to −37% loss by extreme drought from 1981 to 2016.
Journal ArticleDOI
Effect of Drought on Agronomic Traits of Rice and Wheat: A Meta-Analysis
Jinmeng Zhang,Shiqiao Zhang,Min Cheng,Hong Jiang,Xiuying Zhang,Changhui Peng,Xuehe Lu,Minxia Zhang,Jiaxin Jin +8 more
TL;DR: The results demonstrated that drought decreased the agronomic traits differently between rice and wheat among varying growth stages, and future droughts could produce lower yields of rice and Wheat when compared to the current drought.
References
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