Effects of high air temperature, drought, and both combinations on maize: A case study

Pei, Yan-Yan; Ling, Lei; Fan, Xian‐Wei; Li, Youzhi

doi:10.1016/j.plantsci.2022.111543

Cited by 5 publications

(2 citation statements)

References 72 publications

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“…Crop production faces unpredictable encounters due to global climate variations [1,2]. Abiotic stresses such as drought, salinity, and heat stress constantly threaten the yield of essential crops and increase the risk of danger to global food security [3][4][5][6]. Improving food security is critical, given that over 800 million people remain affected by insufficient food supplies [7].…”

Section: Introductionmentioning

confidence: 99%

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Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

et al. 2023

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As a most significant cereal crop, maize provides vital nutritional components to humans and livestock. Drought stress curtails maize growth and yield by impairing several morphological, physiological, and biochemical functions. The rising threats of drought stress significantly affect global food security and increase the ratio of hunger and starvation. The use of molecular breeding techniques has enabled maize researchers to deeply examine the genetic control of drought tolerance and the genetic differences between genotypes to drought stress. Despite the significant progress in molecular genetics, the drought tolerance mechanism is still not fully understood. With the advancements in molecular research, researchers have identified several molecular factors associated with maize tolerance to drought stress. Quantitative trait loci (QTL) mapping and genome-wide association study (GWAS) analysis have led to identifying QTL, and genes linked to drought tolerance in maize that can be further exploited for their possible breeding applications. Transcriptome and transcription factors (TFs) analysis has revealed the documentation of potential genes and protein groups that might be linked to drought tolerance and accelerate the drought breeding program. Genetic engineering has been used to develop transgenic maize cultivars that are resistant to drought stress. Clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) is a new ray of hope to edit the gene of interest to enhance drought tolerance in maize and save both time and cost in cultivar development. In the current review article, we have tried to present an updated picture of the advancements of drought tolerance in maize and its future prospects. These organized pieces of information can assist future researchers in understanding the basis of drought tolerance to adopt a potential breeding tool for breeding drought-tolerant maize cultivars.

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Section: Introductionmentioning

confidence: 99%

“…Conflicts and wars have pushed this situation to a dead end [8,9]. Rising yield of essential crops and increase the risk of danger to global food security [3][4][5][6]. Improving food security is critical, given that over 800 million people remain affected by insufficient food supplies [7].…”

Section: Introductionmentioning

confidence: 99%

Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

et al. 2023

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Transcriptome analysis of maize resistance to Fusarium verticillioides

Zeng,

Cai,

Bai

et al. 2024

Journal of Plant Interactions

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Irrigation and Nitrogen Management Determine Dry Matter Accumulation and Yield of Winter Wheat Under Dryland Conditions

Ma,

Ali,

et al. 2024

J Agronomy Crop Science

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The increase in crop yield can be primarily attributed to the combined effect of genetic advancements, as well as increased contributions from nitrogen (N) and water. The accumulation of dry matter plays a crucial role in determining grain yield in winter wheat. The current study aimed to better understand the source‐sink dynamics, analyse the dry matter transport (DMT) before and after anthesis and calculate its ratio to grain yield. In this experiment, eight main cultivars of winter wheat that have been widely cultivated in Shaanxi Province since the 1940s were selected as planting material. Field examinations were conducted using three levels of both irrigation and N. The yield‐related parameters, dry matter accumulation, dry matter distribution, DMT and DMT efficiency were measured. The results showed that irrigation prolonged the time of dry matter accumulation, and the application of N fertiliser increased the rate of dry matter accumulation. The analysis of the dynamic characteristic parameters of dry matter in winter wheat showed that irrigation and N had a significant impact on rate of dry matter accumulation. The proportion of stems, leaves and spikes of new varieties increased significantly (p < 0.05), which increased by 56.67%–69.7%, 13.26%–18.07% and 15.78%–28.26%, respectively, with the varietal improvement. The DMT efficiency increased with varietal improvement and also with increased irrigation and N application. The response of irrigation treatment to DMT and dry matter was more significant. In addition, the irrigation treatment had a higher effect on the DMT efficiency of vegetative organs after anthesis. The logistic equation analysis revealed that water stress accelerated the fulfilment of maximum daily temperature (Tmax), while both the maximum growth rate (Gmax) and dry matter weight (Wmax) decreased as water stress increased. There was a positive linear relationship between dry matter accumulation after anthesis and grain yield. The structural equation model showed that varieties, N application and irrigation had significant positive effects on DMT, post‐anthesis dry matter and grain yield, while irrigation had significant negative effects on DMT efficiency. The accumulation of dry matter in winter wheat after anthesis showed a significant increase with the succession of varieties. The combination of moderate deficit irrigation and fertilisation improved transportation and dry matter accumulation after anthesis in winter wheat, thereby enhancing its production capacity.

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Effects of high air temperature, drought, and both combinations on maize: A case study

Cited by 5 publications

References 72 publications

Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

Breeding Drought-Tolerant Maize (Zea mays) Using Molecular Breeding Tools: Recent Advancements and Future Prospective

Transcriptome analysis of maize resistance to Fusarium verticillioides

Irrigation and Nitrogen Management Determine Dry Matter Accumulation and Yield of Winter Wheat Under Dryland Conditions

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