Impact of climate change on wheat yield and quality in the Yellow River Basin under RCP8.5 during 2020–2050

Long, Xiaoxu; Jiang, Hui; Wang, Jiandong; Gong, Shuai; Li, Guangyong

doi:10.1016/j.accre.2022.02.006

Cited by 25 publications

(11 citation statements)

References 45 publications

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“…In addition, projected warming over the middle and lower YZB, including watershed 6, are larger than that over other watersheds (Yue et al, 2021), which would cause greater magnitude of evaporative demand. Some studies also have shown that the precipitation variability over the middle and lower YZB (e.g., watersheds 4 and 6) was larger than that over the upper YZB (Hartmann et al, 2012;Zeng et al, 2007), which may easily lead to more drought events. The spatial disparity of changes in drought characteristics needs to be further explored.…”

Section: Projected Changes In the Characteristics Of Meteorological A...mentioning

confidence: 99%

Intensification of drought propagation over the Yangtze River basin under climate warming

Feng

Yuan

2023

Intl Journal of Climatology

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The propagation from meteorological to hydrological drought is critical for better understanding hydrological drought. However, how climate change would affect the drought propagation has not been well studied, especially over regions mixed with massive human interventions. The study attempts to explore changes in the characteristics of meteorological and hydrological droughts, and the corresponding drought propagation under different climate change scenarios across six watersheds over the Yangtze River basin (YZB). Seasonal meteorological and hydrological droughts were characterized by using standardized precipitation and streamflow index at 3‐month scales (SPI‐3 and SSI‐3), which were calculated using precipitation simulations from 15 Coupled Model Intercomparison Project Phase 6 (CMIP6) climate models and streamflow simulations from PCR‐GLOBWB 2.0 hydrological model driven by CMIP6 outputs. Drought propagation characteristics, including propagation ratio, lag and lengthening, were then determined. Both meteorological and hydrological drought durations would shorten, while their drought severity would increase excluding a downstream watershed. About 40%–50% of meteorological droughts could develop into hydrological droughts, with lag time less than 1.4 months and lengthening time less than 1.8 months, respectively. Under climate warming, the drought propagation ratio would increase over two watersheds, while decrease and then increase over three watersheds. The drought propagation lag time is expected to prolong over the regions above Cuntan under moderate emission scenario, while prolong first and then shorten over most watersheds under high‐emission scenario. The drought propagation lengthening time would shorten over most watersheds excluding a downstream watershed, where drought conditions would further worsen during drought propagation. This study calls for climate mitigation efforts to suppress drought aggravation in the propagation particularly for the downstream YZB.

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Section: Projected Changes In the Characteristics Of Meteorological A...mentioning

confidence: 99%

Intensification of drought propagation over the Yangtze River basin under climate warming

Feng

Yuan

2023

Intl Journal of Climatology

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“…Climate change is a current global issue and is estimated to increase the mean global temperature by 1.0–5.7 °C at the end of the 21st century. − Changing climate patterns negatively affect crop growth and yield, , with adverse effects on global food production. − A variety of biotic − and abiotic stresses − created by environmental conditions include salinity, , drought, − temperature, floods, and heavy-metal stress. − Salinity stress affects approximately 20% of irrigated land globally. , It negatively affects the photosynthesis rate by inhibiting photochemical routes via reduction in stomata size (SS), stomatal closing, inhibiting nutrient uptake, − and disrupting water balance. , High levels of salts in the soil decrease stomatal conductivity, which further restricts the inward movement of CO 2 and thus disrupts gaseous exchange . This subsequently interrupts electron transport chain reactions and decreases the photosynthesis rate. − Salinity stress increases the trichome density (TD) and leaf size and adversely affects the plant height, total leaf area, and stomatal density .…”

Section: Introductionmentioning

confidence: 99%

“… 6 − 11 A variety of biotic 12 − 14 and abiotic stresses 15 − 17 created by environmental conditions include salinity, 18 , 19 drought, 20 − 22 temperature, 23 floods, and heavy-metal stress. 24 − 28 Salinity stress affects approximately 20% of irrigated land globally. 29 , 30 It negatively affects the photosynthesis rate by inhibiting photochemical routes via reduction in stomata size (SS), stomatal closing, inhibiting nutrient uptake, 31 − 33 and disrupting water balance.…”

Section: Introductionmentioning

confidence: 99%

Biochar and Seed Priming Technique with Gallic Acid: An Approach toward Improving Morpho-Anatomical and Physiological Features of Solanum melongena L. under Induced NaCl and Boron Stresses

Shumaila

Ullah

Shah³

et al. 2023

ACS Omega

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Dynamic shifts in climatic patterns increase soil salinity and boron levels, which are the major abiotic factors that affect plant growth and secondary metabolism. The present study assessed the role of growth regulators, including biochar (5 g kg −1 ) and gallic acid (GA, 2 mM), in altering leaf morpho-anatomical and physiological responses of Solanum melongena L. exposed to boron (25 mg kg −1 ) and salinity stresses (150 mM NaCl). These growth regulators enhanced leaf fresh weight (LFW) (70%), leaf dry weight (LDW) (20%), leaf area (LA), leaf area index (LAI) (85%), leaf moisture content (LMC) (98%), and relative water content (RWC) (115%) under salinity and boron stresses. Physiological attributes were analyzed to determine the stress levels and antioxidant protection. Photosynthetic pigments were negatively affected by salinity and boron stresses along with a nonsignificant reduction in trehalose, GA, osmoprotectant, and catalase (CAT) and ascorbate peroxidase (APX) activity. These parameters were improved by biochar application to soil and presoaking seeds in GA (p < 0.05) in both varieties of S. melongena L. Scanning electron microscopy (SEM) and light microscopy revealed that application of biochar and GA improved the stomatal regulation, trichome density, epidermal vigor, stomata size (SS) (13 381 μm), stomata index (SI) (354 mm 2 ), upper epidermis thickness (UET) (123 μm), lower epidermis thickness (LET) (153 μm), cuticle thickness (CT) (11.4 μm), trichome density (TD) (23 per mm 2 ), vein islet number (VIN) (14 per mm 2 ), vein termination number (VTN) (19 per mm 2 ), midrib thickness (MT) (5546 μm), and TD (27.4 mm 2 ) under salinity and boron stresses. These results indicate that the use of inexpensive and easily available biochar and seed priming with GA can improve morpho-anatomical and physiological responses of S. melongena L. under oxidative stress conditions.

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“…Grain size is greatly affected by high temperature during grain filling, as higher respiration affects quality characteristics (Ahmed et al, 2022). In wheat crops, high ambient temperature, and drought may reduce photosynthetic activity, cell size, and closure of stomata (Long et al, 2022). Further stated that high temperatures reduced photosynthesis by changing the structural organization of thylakoids (Khan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Plants may not flower or flower without fruit or seeds, even during high temperatures during reproductive development (Maheswari et al, 2012). Planting crops at different sowing dates can search for heat-tolerant genotypes (Zhang et al, 2020;Long et al, 2022). Heat stress causes multifaceted and often adverse changes in plant growth, development, physiological processes, and yield (Hasanuzzaman et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Genetic Analysis in Various Genotypes of Bread Wheat Under Normal and Heat-Stress Environments

Rind,

Memon,

Jatoi

et al. 2023

Pak. J. Biotechnol

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Abiotic stresses have brought the crops to a destructive position towards yield production of crops, especially wheat. The present study was investigated to compare the relationship between normal and heat stress conditions under two different sowing dates viz. normal and late sowing dates (25th Nov and 25th Dec). The correlation coefficients varied with both sowing dates (normal and late planting). In normal planting number of grains showed a significant positive correlation with grain weight spike-1 (r = 0.618**), grain yield plant-1 (r = 0.591**), seed index (r =0 .456**), biological yield plant-1 (r = 0.540**) and harvest index (r =0 .667**). Grains spike-1 contributed significant positive correlation with grains spike-1 (r=0.094**), grain yield plant-1 (r=0.844**), biological yield plant-1 (r=0.936**), harvest index (r=0.556**), leaf area (r=0.791**), relative water content (r=0.763**), chlorophyll content (r=0.853**), cell membrane stability (r=0.828**) and stomatal conductance (r=0.292**). Grain yield plant-1 exhibited a significant positive correlation under normal planting with the number of tillers plant-1, number of spikelets spike-1, grains spike-1, and grain weight spike-1 (r=0.695**,0.207*,0.591**and 0.950**), respectively. Whereas, late planting declared grains spike-1 revelaed signficant positive correlation with grains spike-1 (r=0.094**), grain yield plant-1 (r=0.844**), biological yield plant-1 (r=0.936**), harvest index (r=0.556**), leaf area (r=0.791**),relative water content (r=0.763**), chlorophyll content (r=0.853**), cell membrane stability (r=0.828**) and stolatal conductance (r=0.292**). Under late planting, Yield showed a significant positive correlation with spike length, grains spike-1, and grain weight spike-1 (r=0.343**,0.844**, and 0.964**), respectively

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Impact of climate change on wheat yield and quality in the Yellow River Basin under RCP8.5 during 2020–2050

Cited by 25 publications

References 45 publications

Intensification of drought propagation over the Yangtze River basin under climate warming

Intensification of drought propagation over the Yangtze River basin under climate warming

Biochar and Seed Priming Technique with Gallic Acid: An Approach toward Improving Morpho-Anatomical and Physiological Features of Solanum melongena L. under Induced NaCl and Boron Stresses

Genetic Analysis in Various Genotypes of Bread Wheat Under Normal and Heat-Stress Environments

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