Grain micronutrient composition and yield components in field‐grown wheat are negatively impacted by high night‐time temperature

Hein, Nathan T.; Somayanda, Impa M.; Wagner, Dan; Bheemanahalli, Raju; Kumar, Ritesh; Tiwari, Manish; Prasad, Priyanka; Tilley, Michael; Wu, Xiaorong; Neilsen, Mitchell

doi:10.1002/cche.10523

Cited by 7 publications

(5 citation statements)

References 32 publications

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“…(2013) . The source-sink relationship during grain development was affected by temperature was also studied in many crops, such as rice ( Arshad et al., 2017 ) and wheat ( Hein et al., 2022 ). The negative correlation of soybean yield and quality under high night temperature reported in previous study ( Choi et al., 2016 ) was confirmed in our study.…”

Section: Discussionmentioning

confidence: 99%

Effects of high night temperature on soybean yield and compositions

Yang

Song²,

Xu³

et al. 2023

Front. Plant Sci.

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IntroductionSoybean is sensitive to light and temperature. Under the background of global asymmetric climate warming.MethodsThe increase of night temperature may have an important impact on soybean yield. In this study, three varieties with different level of protein were planted under 18°C and 28°C night temperatures for investigating the effects of high night temperatures on soybean yield formation and the dynamic changes of non-structural carbohydrates (NSC) during the seed filling period (R5-R7).Results and discussionThe results indicated that high night temperatures resulted in smaller seed size, lower seed weight, and a reduced number of effective pods and seeds per plant, and thus, a significant reduction in yield per plant. Analysis of the seed composition variations showed carbohydrates were more substantially affected by high night temperature than protein and oil. We observed “carbon hunger” caused by high night temperature increased photosynthesis and sucrose accumulation in the leaves during the early stage of high night temperature treatment. With elongated treated time, the excessive carbon consumption led to the decrease of sucrose accumulation in soybean seeds. Transcriptome analysis of leaves after 7 days of treatment showed that the expression of most sucrose synthase and sucrose phosphatase genes decreased significantly under the high night temperature. Which could be another important reason for the decrease of sucrose. These findings provided a theoretical basis for enhancing the tolerance of soybean to high night temperature.

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Section: Discussionmentioning

confidence: 99%

Effects of high night temperature on soybean yield and compositions

Yang

Song²,

Xu³

et al. 2023

Front. Plant Sci.

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“…The HS can have detrimental impacts on nutritional quality ( Sehgal et al., 2018 ), most likely owing to a lack of assimilates and reduced nutrient remobilization. For example, lycopene content in tomato ( Stevens and Rudich, 1978 ; Alsamir et al., 2021 ), tocopherols in rice ( Britz et al., 2007 ), storage proteins and amino acids in lentil ( Sita et al., 2018 ; Sehgal et al., 2019 ) and micronutrients ( Hein et al., 2022 ), sugars ( Shah and Paulsen, 2003 ) and proteins ( Zhang et al., 2018 ) in wheat. However, such quality and nutrition-related gaps in legume crops including peas are limited and must be understood to quantify impact on nutritional value.…”

Section: Discussionmentioning

confidence: 99%

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Devi

Sagar²,

Mishra³

et al. 2023

Front. Plant Sci.

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In the era of climate change, the overall productivity of pea (Pisum sativum L.) is being threatened by several abiotic stresses including heat stress (HS). HS causes severe yield losses by adversely affecting several traits in peas. A reduction in pod yield has been reported from 11.1% to 17.5% when mean daily temperature increase from 1.4 to 2.2°C. High-temperature stress (30.5-33°C) especially during reproductive phase is known to drastically reduce both seed yield and germination. HS during germination and early vegetative stage resulted in poor emergence and stunted plant growth along with detrimental effects on physiological functions of the pea plant. To combat HS and continue its life cycle, plants use various defense strategies including heat escape, avoidance or tolerance mechanisms. Ironically, the threshold temperatures for pea plant and its responses are inconsistent and not yet clearly identified. Trait discovery through traditional breeding such as semi leaflessness (afila), upright growing habit, lodging tolerance, lower canopy temperature and small seeded nature has highlighted their utility for greater adaptation under HS in pea. Screening of crop gene pool and landraces for HS tolerance in a targeted environment is a simple approach to identify HS tolerant genotypes. Thus, precise phenotyping using modern phenomics tools could lead to increased breeding efficiency. The NGS (next generation sequencing) data can be associated to find the candidate genes responsible for the HS tolerance in pea. In addition, genomic selection, genome wide association studies (GWAS) and marker assisted selection (MAS) can be used for the development of HS tolerant pea genotypes. Additionally, development of transgenics could be an alternative strategy for the development of HS tolerant pea genotypes. This review comprehensively covers the various aspects of HS tolerance mechanisms in the pea plant, screening protocols, omic advances, and future challenges for the development of HS tolerant genotypes.

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“…Genotype‐specific differences in day‐ vs night‐time heat tolerance strongly suggest assessment of nocturnal thermotolerance should be considered when selecting ‘heat tolerant’ genotypes for future climates. We also acknowledge that high temperatures impact grain quality (Hein et al ., 2022 ; Impa et al ., 2019 ) as well as quantity.…”

Section: Discussionmentioning

confidence: 99%

Night‐time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses

et al. 2023

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Summary Global nocturnal temperatures are rising more rapidly than daytime temperatures and have a large effect on crop productivity. In particular, stomatal conductance at night (gsn) is surprisingly poorly understood and has not been investigated despite constituting a significant proportion of overall canopy water loss. Here, we present the results of 3 yr of field data using 12 spring Triticum aestivum genotypes which were grown in NW Mexico and subjected to an artificial increase in night‐time temperatures of 2°C. Under nocturnal heating, grain yields decreased (1.9% per 1°C) without significant changes in daytime leaf‐level physiological responses. Under warmer nights, there were significant differences in the magnitude and decrease in gsn, values of which were between 9 and 33% of daytime rates while respiration appeared to acclimate to higher temperatures. Decreases in grain yield were genotype‐specific; genotypes categorised as heat tolerant demonstrated some of the greatest declines in yield in response to warmer nights. We conclude the essential components of nocturnal heat tolerance in wheat are uncoupled from resilience to daytime temperatures, raising fundamental questions for physiological breeding. Furthermore, this study discusses key physiological traits such as pollen viability, root depth and irrigation type may also play a role in genotype‐specific nocturnal heat tolerance.

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Grain micronutrient composition and yield components in field‐grown wheat are negatively impacted by high night‐time temperature

Cited by 7 publications

References 32 publications

Effects of high night temperature on soybean yield and compositions

Effects of high night temperature on soybean yield and compositions

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Night‐time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses

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