Night warming at the vegetative stage improves pre-anthesis photosynthesis and plant productivity involved in grain yield of winter wheat

Fan, Yu; Lv, Zhaoyan; Qin, Boya; Yang, Jibin; Li, Qiuxia; Jiang, Fengyi; Zhang, Wenjing; Ma, Shangyu; Ma, Chunhua; Huang, Zhenglai

doi:10.1016/j.plaphy.2022.06.015

Cited by 11 publications

(7 citation statements)

References 47 publications

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“…The importance of each source of grain filling, and the contribution to grain yield, vary among genotypes, depend on the environmental conditions during the grain-filling period, and are related to agronomic measurements. In detail, assimilates remobilized pre-anthesis was driven by DM at anthesis ( Fan et al, 2022 ), and are influenced by the transport ability of DM from vegetative organs to grain in different genotypes ( Arduini et al, 2006 ) and under different growing conditions ( Giri et al, 2019 ). The contributions of assimilates remobilized pre-anthesis account for 20–40% ( Yan et al, 2022 ; Zhang et al, 2022 ), and the proportion can approach 60% under heat stress ( Plaut et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Wide belt sowing improves the grain yield of bread wheat by maintaining grain weight at the backdrop of increases in spike number

Zhang

Hua²,

Liu³

et al. 2022

Front. Plant Sci.

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Increasing the seeding belt width from 2 to 3 cm (conventional drilling sowing, CD) to 8–10 cm (wide belt sowing, WB) can markedly improve the grain yield of bread wheat. However, there are insufficient data to explain how WB affects dry matter (DM) remobilization, pre- and post-anthesis production, and ultimately grain weight and grain yield. In the present study, four bread wheat cultivars (Jimai44, Taishan27, Gaoyou5766, and Zhouyuan9369) with similar phenology characteristic were selected as experimental materials and two sowing patterns (CD and WB) were applied during the 2018–2019 and 2019–2020 growing seasons, to investigate the effects of sowing pattern on grain yield and its components of bread wheat. The results showed that WB increased the post-anthesis rate of canopy apparent photosynthesis (CAP) in comparison with CD, by 19.73–133.68%, across the two seasons and four bread wheat cultivars. Furthermore, WB significantly increased the activities of superoxide dismutase, peroxidase, and catalase, and decreased the malondialdehyde content of the flag and penultimate leaf, thereby extending the duration of the high-value CAP period by 1.95–2.51 days. The improved rate and duration of CAP in WB led to an increase in post-anthesis DM production of 13.33–23.58%, thus ensuring DM distribution to the grain of each bread wheat cultivar. Consequently, in WB, the grain weight was maintained, the grain yield was increased markedly by 9.65–15.80%, at the backdrop of increases in spike number and in turn grain number per unit area. In summary, WB could be applied widely to obtain a high yield of bread wheat.

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Section: Introductionmentioning

confidence: 99%

Wide belt sowing improves the grain yield of bread wheat by maintaining grain weight at the backdrop of increases in spike number

Zhang

Hua²,

Liu³

et al. 2022

Front. Plant Sci.

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“…A recent winter wheat study found that an increased nocturnal temperature by c . 1.4°C led to higher yields albeit in a single genotype (Fan et al ., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…In winter bread wheat and durum wheat (CIRNO), increasing ambient temperatures by 1.5°C and 2°C throughout the entire growing season reduced grain yield by 16.3-19.6% and 33%, respectively (Tian et al, 2014;Garatuza-Payan et al, 2018). A recent winter wheat study found that an increased nocturnal temperature by c. 1.4°C led to higher yields albeit in a single genotype (Fan et al, 2022).…”

Section: Nocturnal Heating Reduced Grain Yield and Biomass Productionmentioning

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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“…While averaged on cultivars, the spike length showed an increase with HS and extending HSd. Temperature rise boosted growth with rapid cell enlargement and hence has shown longer spikes with HS treatment at booting and the longest at the anthesis (Fan et al, 2022). An increase in HSd has, therefore, contributed to an equal increase in the spike length (Schmidt et al, 2020).…”

Section: Quality Traitsmentioning

confidence: 99%

Impacts of heat shock on productivity and quality of Triticum aestivum L. at different growth stages

Goher

Alkharabsheh

Seleiman

et al. 2023

Not Bot Horti Agrobo

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The transitional phase of climate change is becoming a threat worldwide. Fluctuations in temperature are frequently observed in the life cycles of field crops. The current study was intended to evaluate heat stress (HS) at sensitive stages on four wheat cultivars’ growth, grain yield, and quality traits during two consecutive seasons. The experiment included four spring wheat cultivars that were exposed to HS durations (i.e., 0, 48, 96 and 144 h) at booting and anthesis stages. Pots were kept in an open-air, and labeled pots were moved to the glasshouse at the respective growth stage. After HS treatments, pots were moved from the glasshouse to the original position in the open air. The results showed that the cultivars differed in yield and grain quality traits, but their collective mean effect was significantly expressed with HS and HS duration (HSd) on the measured traits. Spike length was significantly affected by HS at the anthesis in comparison to those obtained from the control. However, the increase in HSd did not cause a significant effect on spike length compared to other treatments. Spike weight was significantly decreased in plants exposed to HS at booting and anthesis as well as by increasing HSd. In addition, grain weight and numbers were decreased in plants exposed to HS at booting and anthesis stages with a similar pattern by increasing HSd. Moreover, a reduction in amylose content was observed in grains of plants exposed to HS at booting and anthesis stages or when plants as exposed to a longer period of HSd. Nonetheless, amylopectin, wet gluten (WG) and grain N (GN) showed an increase in plants exposed to HS at booting and anthesis stages and/or extending HSd. This study concludes that plants exposed to different HS treatments during the life cycle had lower values for spike length, grains weight, and grains number per spike including amylose content in comparison to those obtained from the control. The decrease was significantly noted in the yield and grain quality of wheat when plants were exposed to HS at the booting stage in comparison to those exposed to HS at anthesis.

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Night warming at the vegetative stage improves pre-anthesis photosynthesis and plant productivity involved in grain yield of winter wheat

Cited by 11 publications

References 47 publications

Wide belt sowing improves the grain yield of bread wheat by maintaining grain weight at the backdrop of increases in spike number

Wide belt sowing improves the grain yield of bread wheat by maintaining grain weight at the backdrop of increases in spike number

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

Impacts of heat shock on productivity and quality of Triticum aestivum L. at different growth stages

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