Negative interaction effect of heat and drought stress at the warm end of species distribution DOI Creative Commons
Judith Schepers, Jessica Heblack, Yvonne Willi

et al.

Oecologia, Journal Year: 2024, Volume and Issue: 204(1), P. 173 - 185

Published: Jan. 1, 2024

Abstract Geographic range limits of species are often a reflection their ecological niche limits. In many organisms, important that coincide with distribution warm and warm-dry conditions. We investigated the effects heat drought, as they can occur at end distribution. greenhouse experiment, we raised North American Arabidopsis lyrata from centre its well low- high-latitude under average extreme assessed plant growth development, leaf root functional traits, tested for decline in performance selection acting on growth, leaf, traits. Drought heat, when applied alone, lowered performance, while combined stress caused synergistically negative effects. Plants high latitudes did not survive stress, whereas plants originating central low had to moderate survival, indicating divergent adaptation. Traits positively associated survival or without were delayed slowed though plastic responses these traits generally antagonistic direction selection. line, higher tolerance southern populations involve aspects but rather root-to-shoot ratio thinner leaves. conclusion, edges presumably more so global change, seriously impede long-term persistence A. , even impose may adapt, likely interference by considerable maladaptive plasticity.

Language: Английский

Morpho-Physiological and Biochemical Responses of Field Pea Genotypes under Terminal Heat Stress DOI Creative Commons
Vijay Sharma, C. M. Singh, Vishal Chugh

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(2), P. 256 - 256

Published: Jan. 5, 2023

Field pea is one of the important short-duration cool season pulse crops which contributes significantly towards food and nutritional security. Two heat-susceptible (HS) two heat-tolerant (HT) genotypes were selected from previous study for further characterization. A significant variation was observed morpho-physiological traits studied. Principal component analysis explained that first principal components, i.e., PC1 PC2 showed 76.5% total variance in optimal condition, whereas 91.2% covered by PCs heat stress environment. The seed yield per plant determined positive association with superoxide dismutase number seeds pod under conditions, it positively associated effective pods plant, biological proline, length, pod, dismutase, peroxidase. reduction noticed susceptible genotypes, tolerant stable non-significant chlorophyll content. Further, minimum cell damage higher hydrogen peroxide production genotypes. In addition, biochemical characterization HS HT revealed expression peroxidase, catalase modulates responses These used developing field

Language: Английский

Citations

21
Impact of different sowing dates and irrigation levels on NPK absorption, yield and water use efficiency of maize DOI Creative Commons
Ahmed S. D. Abaza, Ayman M. S. Elshamly,

Mona S. Alwahibi

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Aug. 10, 2023

Abstract Upper Egypt experiences high temperatures during summer and low winter, which significantly impacts the sowing dates of maize in this region. The productivity crops water use efficiency can be greatly affected by stress (SDs). Therefore, it is crucial to determine optimal irrigation level SDs based on local conditions. To assess effects, two levels were employed: (1) control (full applied) (2) 70% water. Field experiments conducted at National Water Research Center's studies research complex station Toshka. aim was evaluate limited irrigation) across five (early: mid-February March, normal: mid-June, late: mid-August September) both 2019 2020, order identify ideal date (SD) level. normal SD resulted an increased growth season length between plant emergence maturity. Conversely, late reduced number days until maturity, resulting higher grain yields (WUE). Notably, September, coupled with level, yielded highest WUE, a 7014 kg ha −1 WUE 0. 9 m −3 . Based findings, recommended that regions similar conditions consider cultivating seeds adopting achieve N uptake, traits (plant height, ear length, weight, rows per ear, index weight), yield, WUE.

Language: Английский

Citations

21
Silicon Induces Heat and Salinity Tolerance in Wheat by Increasing Antioxidant Activities, Photosynthetic Activity, Nutrient Homeostasis, and Osmo-Protectant Synthesis DOI Creative Commons

Ansa Aouz,

İmran Khan, Muhammad Bilal Chattha

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(14), P. 2606 - 2606

Published: July 10, 2023

Modern agriculture is facing the challenges of salinity and heat stresses, which pose a serious threat to crop productivity global food security. Thus, it necessary develop appropriate measures minimize impacts these stresses on field crops. Silicon (Si) second most abundant element earth has been recognized as an important substance mitigate adverse effects abiotic stresses. present study determined role Si in mitigating stress (SS) (HS) wheat crop. This examined response different genotypes, namely Akbar-2019, Subhani-2021, Faisalabad-2008, under treatments: control, SS (8 dSm−1), HS, + control Si, HS+ Si. study’s findings reveal that HS caused significant decrease growth yield by increasing electrolyte leakage (EL), malondialdehyde (MDA), hydrogen peroxide (H2O2) production; sodium (Na+) chloride (Cl−) accumulation; decreasing relative water content (RWC), chlorophyll carotenoid content, total soluble proteins (TSP), free amino acids (FAA), well nutrient uptake (potassium, K; calcium, Ca; magnesium, Mg). However, application offsets negative both improved contents, RWC, antioxidant activity, TSP, FAA accumulation, (Ca, K, Mg); EL, leakage, MDA, H2O2; restricting Na+ Cl−. could be approach improve normal combined saline conditions improving plant physiological functioning, activities, homeostasis, osmolyte accumulation.

Language: Английский

Citations

20
Nanoparticle-Enhanced Plant Defense Mechanisms Harnessed by Nanotechnology for Sustainable Crop Protection DOI
Dali Vilma Francis,

Anam Asif,

Zienab F. R. Ahmed

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

6
CRISPR/Cas9 genome editing in wheat: enhancing quality and productivity for global food security—a review DOI
Hany Elsharawy,

Moath Refat

Functional & Integrative Genomics, Journal Year: 2023, Volume and Issue: 23(3)

Published: Aug. 4, 2023

Language: Английский

Citations

16
Building a better Mungbean: Breeding for reproductive resilience in a changing climate DOI Creative Commons
Shanice Van Haeften, Caitlin Dudley, Yichen Kang

et al.

Food and Energy Security, Journal Year: 2023, Volume and Issue: 12(6)

Published: June 1, 2023

Abstract Mungbean ( Vigna radiata (L.) R. Wilczek var. ) is a significant food and cash crop grown in tropical subtropical regions. production consumer demand have increased substantially over the last two decades, owing to its agronomic, nutritional economic benefits. Despite breeding efforts expansion of mungbean various agro‐climatic regions, further hindered by low yield variability, which partly attributed impacts abiotic stress. Abiotic stress on physiology, morphology reproductive ability influences yield. Exposure stresses at stage considered most critical for production. In this review, we evaluate how growth productivity when occurring during traits that may confer adaptation. We present limitations current research including limited number genotypes, lack field experiments detailed experimental information. highlight opportunities exploit new tools technologies, such as high‐throughput phenotyping platforms, gene editing, genomic selection, accelerate develop more resilient cultivars today tomorrow.

Language: Английский

Citations

15
Investigating the impact of terminal heat stress on contrasting wheat cultivars: a comprehensive analysis of phenological, physiological, and biochemical traits DOI Creative Commons
Hitesh Kumar, Vishal Chugh, Manoj Kumar

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 30, 2023

Terminal heat stress has become one of the major threats due to global climate change which is significantly affecting production and productivity wheat crop. Therefore, it necessary identify key traits genotypes breed heat-tolerant wheat. The present study was undertaken with objective comparing effects (HSE) extended (EHSE) on phenological-physio-biochemical contrasting heat-susceptible during reproductive phase. Phenological exhibited significant reduction under EHSE compared HSE. Heat-tolerant maintained balanced traits, while heat-sensitive showed reductions both regimes. Among phenological DM (R2 = 0.52) BY 0.44) have shown a positive effect seed yield, indicating that biomass crop duration contributed yield advantage stress. During grain filling stage, normalized difference vegetation index (NDVI) chlorophyll (Chl) consistently impacts HSE conditions. This could be attributed enhanced photosynthesis resulting from delayed senescence improved assimilate remobilization terminal biochemical activity superoxide dismutase (SOD), peroxidase (POX), ascorbate (APX) induced in tolerant correlation canopy temperature remained static EHSE, suggesting CT as best selection parameter for tolerance. showing association are less affected used selecting environments. These can develop mapping populations decipher genes conferring tolerance well molecular basis

Language: Английский

Citations

15
Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward DOI Creative Commons
Jyoti Devi, Vidya Sagar, Gyan P. Mishra

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 17, 2023

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

Language: Английский

Citations

14
Negative effects of high-temperature stress on gametophyte performance and their consequences for seed reproduction in wild plants DOI Creative Commons
Donam Tushabe, Franziska Altmann,

Erik Koehler

et al.

Environmental and Experimental Botany, Journal Year: 2023, Volume and Issue: 216, P. 105532 - 105532

Published: Oct. 10, 2023

Plant regeneration by seeds is highly sensitive to temperature stress, particularly in the gametophyte stage. However, most of existing research has focused on one single stage development and/or conducted using cultivated or a very few model species. Thus, it unclear whether results such studies can be applied natural populations. To fill this gap, we investigated a) effects chronic heat stress (CHS; 17 days) at 35/30°C (moderate stress) and 40/35°C (severe performance, b) how these translated into seed quantity quality. We measured six traits related male (anther length, pollen production size) female (ovary ovule production, performance leaf chlorophyll fluorescence (Fv/Fm) four wild Silene The ripe treated plants were used measure mass production; germination was characterized terms percentage, speed, synchrony. Fv/Fm decreased significantly both treatments, confirming negative effect CHS overall plant performance. All treatments compared control. length size ovary smaller treatment than control, while fewer did not affect mass. final percentage differed weakly between severe control but show any impacts whereas faster plants, moderate severe. Germination synchrony affected treatments. high sensitivity gametophytes vascular high-temperature implies that climate change-associated waves impact reproduction plants. altered could have potential consequences for long-term survival populations granivores.

Language: Английский

Citations

14
Agro-Physiological Indices and Multidimensional Analyses for Detecting Heat Tolerance in Wheat Genotypes DOI Creative Commons
Ibrahim Al-Ashkar,

Mohammed Sallam,

Abdelhalim I. Ghazy

et al.

Agronomy, Journal Year: 2023, Volume and Issue: 13(1), P. 154 - 154

Published: Jan. 3, 2023

Increasing atmospheric temperature can significantly reduce global wheat productivity; despite a mounting demand for grain supplies. Developing genotypes with superior performance under current and future hot climates is key challenge breeders. Multidimensional tools have supported plant breeders in increasing the genetic stability rate of agro-physiological indices that influence productivity. We used 25 to classify 20 bread their heat stress tolerance. Agro-physiological multidimensional analyses identify differences phenotypic were used, combining these reach selection criteria accurate credible. The studied reflected high genotypic environmental variations. 16 indices, which brought together heritability gain as indicators screening heat-tolerant genotypes. Based on seven principal comprehensive (D value), classified into three highly heat-tolerant, four six moderately five heat-sensitive, two heat-sensitive critical [grain yield (GY), grain-filling duration (GFD), spike length (SL) canopy (CT)] obtained from stepwise multiple linear regression (SMLR), grouped heat-sensitive. classification D value SMLR distances correlated based Mantel test, perfect match nine indicated mathematical equation evaluation tolerance was established: GY = 0.670 + 0.504 × GFD 0.334 SL − 0.466 CT (R2 0.739; average prediction accuracy 94.12%). SMLR-based further verified through discriminant analysis, showed prior posterior identical eighteen Cross-validation thirteen this study, we recommend tolerated new lines (DHL25, DHL05, DHL23 DHL08) cultivar Pavone-76 promising source breeding programs.

Language: Английский

Citations

13