Optimizing sowing window, cultivar choice, and plant density to boost maize yield under RCP8.5 climate scenario of CMIP5

Ali, Marwa G. M.; Ahmed, Mukhtar; Mahmoud, I.Y.; Baroudy, Ahmed A. El; Ali, Esmat F.; Shokr, Mohamed S.; Aldosari, Ali; Majrashi, Ali; Kheir, Ahmed M. S.

doi:10.1007/s00484-022-02253-x

Cited by 27 publications

(14 citation statements)

References 72 publications

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“…Heat stress is defined as the rise in the temperature of 10–15 °C above ambient. Heat stress negatively affects plant growth and development at all stages, from germination to harvesting [ 1 , 2 , 3 ]. Plants are sessile in nature and are exposed to variable temperature ranges.…”

Section: Introductionmentioning

confidence: 99%

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

et al. 2022

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Among abiotic stresses, heat stress is described as one of the major limiting factors of crop growth worldwide, as high temperatures elicit a series of physiological, molecular, and biochemical cascade events that ultimately result in reduced crop yield. There is growing interest among researchers in the use of beneficial microorganisms. Intricate and highly complex interactions between plants and microbes result in the alleviation of heat stress. Plant–microbe interactions are mediated by the production of phytohormones, siderophores, gene expression, osmolytes, and volatile compounds in plants. Their interaction improves antioxidant activity and accumulation of compatible osmolytes such as proline, glycine betaine, soluble sugar, and trehalose, and enriches the nutrient status of stressed plants. Therefore, this review aims to discuss the heat response of plants and to understand the mechanisms of microbe-mediated stress alleviation on a physio-molecular basis. This review indicates that microbes have a great potential to enhance the protection of plants from heat stress and enhance plant growth and yield. Owing to the metabolic diversity of microorganisms, they can be useful in mitigating heat stress in crop plants. In this regard, microorganisms do not present new threats to ecological systems. Overall, it is expected that continued research on microbe-mediated heat stress tolerance in plants will enable this technology to be used as an ecofriendly tool for sustainable agronomy.

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Section: Introductionmentioning

confidence: 99%

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

et al. 2022

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“…However, adaptation strategies helped in increasing the yield by 12–17% under future agricultural systems, thus mitigating the climate change impact 42 . In the northern Nile delta, Sakha under the RCP 8.5 scenario, a decrease in maize yield was simulated by using the projected weather data by three climate models, namely GFDL‐ES2M, CSIRO‐MK3‐6‐0, and HADGEM2‐ES by 2.6%, 7.5% and 14.6%, respectively, during 2030, by 17.4%, 32.2% and 37.2%, respectively, during 2050 and by 45.2%, 74.3% and 71.3%, respectively, during 2080 43 . When the optimization practices, that is, early shift of sowing dates by 15 days, increasing the planting density by 9 plants m −2 and selection of late maturity cultivar (SC10) were used in combination, then a decrease in yield reduction of maize by 39% could be realized 43 …”

Section: Discussionmentioning

confidence: 99%

“…42 In the northern Nile delta, Sakha under the RCP 8.5 scenario, a decrease in maize yield was simulated by using the projected weather data by three climate models, namely GFDL-ES2M, CSIRO-MK3-6-0, and HADGEM2-ES by 2.6%, 7.5% and 14.6%, respectively, during 2030, by 17.4%, 32.2% and 37.2%, respectively, during 2050 and by 45.2%, 74.3% and 71.3%, respectively, during 2080. 43 When the optimization practices, that is, early shift of sowing dates by 15 days, increasing the planting density by 9 plants m −2 and selection of late maturity cultivar (SC10) were used in combination, then a decrease in yield reduction of maize by 39% could be realized. 43 The current study shows that the impact of increasing temperatures and varying rainfall which would cause a decline in maize yields under current sowing window could be countered by shifting the sowing window to early-May to mid-July.…”

Section: Discussionmentioning

confidence: 99%

Modelling the climate change impact of mitigation (RCP 2.6) and high emission (RCP 8.5) scenarios on maize yield and possible adaptation measures in different agroclimatic zones of Punjab, India

et al. 2023

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BACKGROUNDA simulation study was performed for assessing climate change impact on maize under Representative Concentration Pathways (RCPs 2.6 and 8.5) for Punjab, India. The study area comprised five agroclimatic zones (AZs) including seven locations. The bias corrected temperature and rainfall data from four models (CSIRO‐Mk‐3‐6‐0, FIO‐ESM, IPSL‐CM5A‐MR and Ensemble) were used as input in CERES‐Maize model which was run with constant management practices for two Punjab maize hybrids (PMH 1 and PMH 2). The maize yield for upcoming 70 years (2025–2095) was simulated and its deviations from the baseline (2010–2021) yield were computed under optimized sowing (early‐May to early‐July) and current sowing (end‐May to end‐June) period.RESULTSWith current sowing dates, the maize yield declined under both RCP 2.6 and RCP 8.5 scenarios, respectively in all the AZs, that is, by 4–23% and 60–80% in AZ II, by 5–60% and 60–90% in AZ III, by 9–30% and 50–90% in AZ IV and by 13–40% and 30–90% in AZ V. Though yield decline was lesser under RCP 2.6 as compared to RCP 8.5, but still it indicates that adaptive strategy such as shifting of sowing dates may be helpful in stabilizing the maize yield.CONCLUSIONThe results for iterative combinations of sowing period revealed that early June sowing in AZ II for both the hybrids, mid‐ to end‐June (Ludhiana and Amritsar) and end‐May to mid‐June (Patiala) sowings for PMH 1 were able to nullify the negative impact of climate change. Maize cultivation in AZ IV and AZ V would not be a suitable venture for farmers of the region. © 2023 Society of Chemical Industry.

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“…High heat stress emerged as a serious issue responsible for huge yield losses and is expected to exacerbate in the future [ 141 ]. Heat stress poses extremely negative effects on plants during all growth stages, from germination to harvesting [ 142 , 143 ]. Heat stress not only aggravates the mortality rate of plants but also deteriorates their quality [ 144 , 145 ].…”

Section: Crispr/cas9 For Mitigating the Impact Of Heat Stressmentioning

confidence: 99%

Engineering Abiotic Stress Tolerance in Crop Plants through CRISPR Genome Editing

Rahman

Zulfiqar

Raza

et al. 2022

Cells

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Environmental abiotic stresses challenge food security by depressing crop yields often exceeding 50% of their annual production. Different methods, including conventional as well as genomic-assisted breeding, mutagenesis, and genetic engineering have been utilized to enhance stress resilience in several crop species. Plant breeding has been partly successful in developing crop varieties against abiotic stresses owning to the complex genetics of the traits as well as the narrow genetic base in the germplasm. Irrespective of the fact that genetic engineering can transfer gene(s) from any organism(s), transgenic crops have become controversial mainly due to the potential risk of transgene-outcrossing. Consequently, the cultivation of transgenic crops is banned in certain countries, particularly in European countries. In this scenario, the discovery of the CRISPR tool provides a platform for producing transgene-free genetically edited plants—similar to the mutagenized crops that are not extensively regulated such as genetically modified organisms (GMOs). Thus, the genome-edited plants without a transgene would likely go into the field without any restriction. Here, we focused on the deployment of CRISPR for the successful development of abiotic stress-tolerant crop plants for sustaining crop productivity under changing environments.

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Optimizing sowing window, cultivar choice, and plant density to boost maize yield under RCP8.5 climate scenario of CMIP5

Cited by 27 publications

References 72 publications

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

A Review on the Role of Endophytes and Plant Growth Promoting Rhizobacteria in Mitigating Heat Stress in Plants

Modelling the climate change impact of mitigation (RCP 2.6) and high emission (RCP 8.5) scenarios on maize yield and possible adaptation measures in different agroclimatic zones of Punjab, India

Engineering Abiotic Stress Tolerance in Crop Plants through CRISPR Genome Editing

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