Mitigating heat and chilling stress by adjusting the sowing date of maize in the North China Plain

Tian, Bin; Zhu, Jincheng; Nie, Yanshun; Xu, Cailong; Meng, Qingfeng; Pu, Wang

doi:10.1111/jac.12299

Cited by 51 publications

(27 citation statements)

References 47 publications

(86 reference statements)

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“…Optimizing sowing date is recognized as one of most effective adaptation options to address climate change by matching the supply and requirement of crops to climate resources (Kamara et al 2009, Tsimba et al 2013 and mitigating climate risks such as drought and heat stress , Rahimi-Moghaddam et al 2018, Tian et al 2019. Comparing the current potential sowing window across six regions, regions I and V have shorter sowing windows.…”

Section: Discussionmentioning

confidence: 99%

Optimizing sowing window and cultivar choice can boost China’s maize yield under 1.5 °C and 2 °C global warming

Huang

Wang

et al. 2020

Environ. Res. Lett.

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Climate change, with increased temperatures and varied rainfall, poses a great challenge to food security around the world. Appropriately assessing the impacts of climate change on crop productivity and understanding the adaptation potential of agriculture to climate change are urgently needed to help develop effective strategies for future agriculture and to maintain food security. In this study, we studied future maize yield changes under 1.5°C (2018-2037) and 2°C (2044-2063) warming scenarios and investigated the adaptation potential across China's Maize Belt by optimizing the sowing date and cultivar using the APSIM-Maize model. In comparison to the baseline scenario, under the 1.5°C and 2°C warming scenarios, we found that without adaptation, maize yields would increase in the relatively cool regions with a single-cropping system but decrease in other regions. However, in comparison with the baseline scenario, under the 1.5°C and 2°C warming scenarios with adaptation, maize yields would increase by 11.1%-53.9% across the study area. Across the maize belt, compared with the baseline scenario, under warming of 1.5°C, the potential sowing window would increase by 2-17 d, and under warming of 2°C, this sowing window would increase by 4-26 d. The optimal sowing window would also be significantly extended in the regions with single-cropping systems by an average of 10 d under the 1.5°C warming scenario and 12 d under the 2°C warming scenario. Latematuring cultivar achieved higher yield than early-middle maturing cultivars in all regions except the north part of Northeast China. Adjusting the sowing date by increasing growth-period precipitation contributed more (44.5%-96.7%) to yield improvements than shifting cultivars (0%-50.8%) and climate change (−53.1% to 23.0%) across all maize planting regions except in the wet southwestern parts of the maize belt. The differences among the maize planting regions in terms of high adaptation potential provide invaluable information for policymakers and stakeholders of maize production to set out optimized agricultural strategies to safeguard the supply of maize.

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Section: Discussionmentioning

confidence: 99%

Optimizing sowing window and cultivar choice can boost China’s maize yield under 1.5 °C and 2 °C global warming

Huang

Wang

et al. 2020

Environ. Res. Lett.

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“…Heat stress during the reproductive phase causes parchedness of silks, pollens’ sterility, and poor seed setting, resulting in drastic yield reduction [ 25 , 26 ]. Productivity loss at the reproductive phase due to heat stress is also linked with a decrease in the number of grains and their weight [ 34 ]. The day-time temperature of 35 °C in waxy maize reduced the grain yields by up to 31% due to decreased grain number and grain weight [ 35 ].…”

Section: Maize Growth Under Temperature Extremesmentioning

confidence: 99%

“…The day-time temperature of 35 °C in waxy maize reduced the grain yields by up to 31% due to decreased grain number and grain weight [ 35 ]. In response to heat stress stimuli, the defense mechanism of plants tends to opt to escape or avoid the stress period through phenotypic plasticity, which reduces the grain filling duration [ 34 , 36 ]. Interestingly, under elevated temperatures, the normal process of endosperm development is fully completed by the maize plant, but at a much accelerated pace.…”

Section: Maize Growth Under Temperature Extremesmentioning

confidence: 99%

“…In the North China Plain, maize crops have been confronted with episodes of chilling and heat stresses in recent years. Alteration in planting time helped reduce the yield losses significantly by minimizing the risk of heat and chilling damage during the silking and grain filling stages, respectively [ 34 ].…”

Section: Strategies To Mitigate the Effects Of Temperature Fluctuamentioning

confidence: 99%

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Thermal Stresses in Maize: Effects and Management Strategies

Waqas

Wang

Zafar

et al. 2021

Plants

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Climate change can decrease the global maize productivity and grain quality. Maize crop requires an optimal temperature for better harvest productivity. A suboptimal temperature at any critical stage for a prolonged duration can negatively affect the growth and yield formation processes. This review discusses the negative impact of temperature extremes (high and low temperatures) on the morpho-physiological, biochemical, and nutritional traits of the maize crop. High temperature stress limits pollen viability and silks receptivity, leading to a significant reduction in seed setting and grain yield. Likewise, severe alterations in growth rate, photosynthesis, dry matter accumulation, cellular membranes, and antioxidant enzyme activities under low temperature collectively limit maize productivity. We also discussed various strategies with practical examples to cope with temperature stresses, including cultural practices, exogenous protectants, breeding climate-smart crops, and molecular genomics approaches. We reviewed that identified quantitative trait loci (QTLs) and genes controlling high- and low temperature stress tolerance in maize could be introgressed into otherwise elite cultivars to develop stress-tolerant cultivars. Genome editing has become a key tool for developing climate-resilient crops. Moreover, challenges to maize crop improvement such as lack of adequate resources for breeding in poor countries, poor communication among the scientists of developing and developed countries, problems in germplasm exchange, and high cost of advanced high-throughput phenotyping systems are discussed. In the end, future perspectives for maize improvement are discussed, which briefly include new breeding technologies such as transgene-free clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas)-mediated genome editing for thermo-stress tolerance in maize.

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“…The sowing calendar and the crop growth rate affect whether the critical phenology phase coincides with the high-temperature period. Adjusting the sowing date is an important adaptation strategy for avoiding the risks of high temperature and drought during the critical period for maize, ensuring yield and adapting to climate change [41][42][43]. However, a winter wheat-summer maize rotation system was implemented across most of the 3H Plain.…”

Section: Discussionmentioning

confidence: 99%

Effect of High-Temperature Events When Heading into the Maturity Period on Summer Maize (Zea mays L.) Yield in the Huang-Huai-Hai Region, China

Wei

Liu

et al. 2020

Atmosphere

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The predicted increase in the frequency of extreme climatic events in the future may have a negative effect on cereal production, but our understanding of the historical trends of high-temperature events associated with climate change and their long-term impact on summer maize yield is limited. Based on an analysis of historical climate and summer maize yield data from 1980 to 2016 in the Huang-Huai-Hai (3H) region of China, we calculated two high-temperature event indices, namely, high-temperature hours (HTH) and high-temperature degrees (HTD, the sum of the differences between 35 °C and above), and then investigated the temporal trend of high-temperature events from maize heading to maturity and their impact on the yield of summer maize. Our results indicated that the air temperature showed a significant upward trend when heading into the maturity period of summer maize in the 3H region from 1980–2016 and that the increase was greater in the northern Huang-Huai-Hai (N3H) region than in the southern Huang-Huai-Hai (S3H) region. The intensity of high-temperature events when heading into the maturity period increased considerably from 1980 to 2016 in the 3H region, especially in the S3H region. The HTH and HTD increased by 1.30 h and 0.80 °C per decade in the S3H region, respectively. Moreover, a sensitivity analysis of panel data showed that the increases in HTH and HTD when heading into the maturity period had a consistent negative effect on yield in S3H and N3H regions; this effect was more obvious in the S3H region. In the S3H region, a 1 h increase in HTH was found to be associated with a 0.45–1.13% decrease in yield and a 1 °C increase in HTD could result in a yield loss of 1.34–4.29%. High-temperature events were detrimental to summer maize production, and the severity of this effect was projected to increase in the 3H region. In this study, we used two indices (HTH and HTD) to quantify the impact of high-temperature events on summer maize yield during the critical growth phase (heading to maturity) at a small timescale (hours and days). The results of this study can provide a reference for policymakers to use in the formulation of corresponding climate change adaptation strategies.

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Mitigating heat and chilling stress by adjusting the sowing date of maize in the North China Plain

Cited by 51 publications

References 47 publications

Optimizing sowing window and cultivar choice can boost China’s maize yield under 1.5 °C and 2 °C global warming

Optimizing sowing window and cultivar choice can boost China’s maize yield under 1.5 °C and 2 °C global warming

Thermal Stresses in Maize: Effects and Management Strategies

Effect of High-Temperature Events When Heading into the Maturity Period on Summer Maize (Zea mays L.) Yield in the Huang-Huai-Hai Region, China

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