The Hidden Costs of Nighttime Warming on Yields

Sadok, Walid; Jagadish, S. V. Krishna

doi:10.1016/j.tplants.2020.02.003

Cited by 112 publications

(73 citation statements)

References 81 publications

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“…About 8-13 days reduction in days to anthesis and maturity resulted in 53-73% yield losses in different cultivars. Meanwhile, Sadok and Jagadish 155 reported that nighttime warming poses a threat to global food security (6% decrease in winter wheat yield per 1 °C rise in night temperature while 4-7% reduction in spring wheat and rice yield per 1 °C rise in night temperature) as it is driving yield declines worldwide. Thus, they proposed ecophysiological framework as a guide to implement future research efforts to mitigate yield declines.…”

Section: Effect Of Phenological Shifts On Crop Yieldmentioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

204

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Growth and development of cereal crops are linked to weather, day length and growing degree-days (GDDs) which make them responsive to the specific environments in specific seasons. Global temperature is rising due to human activities such as burning of fossil fuels and clearance of woodlands for building construction. The rise in temperature disrupts crop growth and development. Disturbance mainly causes a shift in phenological development of crops and affects their economic yield. Scientists and farmers adapt to these phenological shifts, in part, by changing sowing time and cultivar shifts which may increase or decrease crop growth duration. Nonetheless, climate warming is a global phenomenon and cannot be avoided. In this scenario, food security can be ensured by improving cereal production through agronomic management, breeding of climate-adapted genotypes and increasing genetic biodiversity. In this review, climate warming, its impact and consequences are discussed with reference to their influences on phenological shifts. Furthermore, how different cereal crops adapt to climate warming by regulating their phenological development is elaborated. Based on the above mentioned discussion, different management strategies to cope with climate warming are suggested.

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Section: Effect Of Phenological Shifts On Crop Yieldmentioning

confidence: 99%

The fingerprints of climate warming on cereal crops phenology and adaptation options

Fatima

Ahmed

Hussain

et al. 2020

Sci Rep

204

View full text Add to dashboard Cite

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“…Similar observations were made in the field using barley and wheat grown under ambient daytime temperatures and HN; HN reduced grain yields, which was associated with accelerated reproductive development and a shorter critical period for grain filling ( García et al , 2015 ). The molecular processes that influence the response to HN are unknown; however, the effect of HN may be linked with decreases in the amount of photoassimilates available for plant growth and grain fill, caused by higher respiration at night ( Garcia et al , 2016 ; Impa et al , 2019 ; Sadok and Jagadish, 2020 ). Similarly, it has been proposed that the HN treatment may depress photosynthesis-dependent processes, accelerating leaf senescence and reducing the effective period of light interception by the plant, which would reduce photoassimilate distribution to the grain ( Shirdelmoghanloo et al , 2016 ; Lesjak and Calderini, 2017 ; Sadok and Jagadish, 2020 ).…”

Section: Temperature Effects On Reproductive Developmentmentioning

confidence: 99%

“…The molecular processes that influence the response to HN are unknown; however, the effect of HN may be linked with decreases in the amount of photoassimilates available for plant growth and grain fill, caused by higher respiration at night ( Garcia et al , 2016 ; Impa et al , 2019 ; Sadok and Jagadish, 2020 ). Similarly, it has been proposed that the HN treatment may depress photosynthesis-dependent processes, accelerating leaf senescence and reducing the effective period of light interception by the plant, which would reduce photoassimilate distribution to the grain ( Shirdelmoghanloo et al , 2016 ; Lesjak and Calderini, 2017 ; Sadok and Jagadish, 2020 ). Dissection of the molecular responses that occur under warm night-time temperatures will therefore benefit from a multidisciplinary approach that includes physiology, developmental biology, and modelling.…”

Section: Temperature Effects On Reproductive Developmentmentioning

confidence: 99%

Feeling the heat: developmental and molecular responses of wheat and barley to high ambient temperatures

Jacott

Boden

2020

Journal of Experimental Botany

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The increasing demand for global food security in the face of a warming climate is leading researchers to investigate the physiological and molecular responses of cereals to rising ambient temperatures. Wheat and barley are temperate cereals whose yields are adversely affected by high ambient temperatures, with each 1 °C increase above optimum temperatures reducing productivity by 5–6%. Reproductive development is vulnerable to high-temperature stress, which reduces yields by decreasing grain number and/or size and weight. In recent years, analysis of early inflorescence development and genetic pathways that control the vegetative to floral transition have elucidated molecular processes that respond to rising temperatures, including those involved in the vernalization- and photoperiod-dependent control of flowering. In comparison, our understanding of genes that underpin thermal responses during later developmental stages remains poorly understood, thus highlighting a key area for future research. This review outlines the responses of developmental genes to warmer conditions and summarizes our knowledge of the reproductive traits of wheat and barley influenced by high temperatures. We explore ways in which recent advances in wheat and barley research capabilities could help identify genes that underpin responses to rising temperatures, and how improved knowledge of the genetic regulation of reproduction and plant architecture could be used to develop thermally resilient cultivars.

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“…In addition, mean night-time temperatures are rising at a faster rate than those during the daytime (Davy, Esau, Chernokulsky, Outten, & Zilitinkevich, 2017;Sadok & Jagadish, 2020), which speeds up respiration and results in crop yield and quality reduction (Coast,Šebela, Quiñones, & Jagadish, 2020;Dusenge et al, 2019;Impa et al, 2019;Impa et al, 2020;Schaarschmidt et al, 2020).…”

Section: Biochemical Processes Under High Temperaturementioning

confidence: 99%

The Heat is On: How Crops Respond to High Temperature

Zhu

Lima

Smet

2020

Preprint

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Plants are exposed to a wide range of temperatures during their life cycle and need to continuously adapt. These adaptations need to deal with temperature changes on a daily and seasonal level and with temperatures affected by climate change, and need to take into account that different organs have different optimal temperature ranges. Increasing global temperatures impact crop performance, and several physiological and developmental responses to increased temperature have been described that allow to mitigate this. In this review, we assess various developmental, physiological and biochemical responses of crops to high temperature, focusing on knowledge gained from both monocots (e.g. wheat, barley, maize, rice) and dicots (e.g. soybean or tomato). We outline several outstanding questions where crop research can exploit knowledge from model plants, such as Arabidopsis thaliana, and we highlight that studying molecular mechanisms directly in relevant crops is essential.

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The Hidden Costs of Nighttime Warming on Yields

Cited by 112 publications

References 81 publications

The fingerprints of climate warming on cereal crops phenology and adaptation options

The fingerprints of climate warming on cereal crops phenology and adaptation options

Feeling the heat: developmental and molecular responses of wheat and barley to high ambient temperatures

The Heat is On: How Crops Respond to High Temperature

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