Heat Tolerance in Cotton

Azhar, Muhammad Tehseen; Wani, Shabir Hussain; Chaudhary, Muhammad Tanees; Jameel, Tariq; Kaur, Parwinder; Du, Xinying

doi:10.1002/9781119432401.ch1

Cited by 7 publications

(4 citation statements)

References 86 publications

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“…Based on the fact that most growers sample infested reproductive structures while monitoring the boll weevil, 61 no matter the cotton growth season or phenological stage, high precision can be assured by adopting a conservative approach that includes using the narrowest range found for sampling infested reproductive structures. Therefore, as a general recommendation, the minimum distance that should be adopted between samples to monitor boll weevil‐infested reproductive structures across all phenological stages is 6 m. The recommendation found herein is valid for any other area cultivating cotton under tropical/subtropical conditions, which prevail in most cotton‐producing regions across the globe 62 …”

Section: Discussionmentioning

confidence: 88%

“…Therefore, as a general recommendation, the minimum distance that should be adopted between samples to monitor boll weevil-infested reproductive structures across all phenological stages is 6 m. The recommendation found herein is valid for any other area cultivating cotton under tropical/subtropical conditions, which prevail in most cotton-producing regions across the globe. 62…”

Section: Discussionmentioning

confidence: 99%

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Spatio‐temporal distribution of Anthonomus grandis grandis Boh. in tropical cotton fields

Oliveira

Araújo

Showler

et al. 2022

Pest Management Science

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BACKGROUND: Knowledge of the spatio-temporal distribution of pests is important for the development of accurate management approaches. The boll weevil, Anthonomus grandis grandis Boh., is a deleterious cotton, Gossypium hirsutum L., pest in the western hemisphere. The spread of boll weevils across cotton fields remains poorly understood. We assessed the dispersal pattern of adult weevils through cotton fields cultivated in a tropical area during dry and wet seasons using geostatistics for the number of adults and infested reproductive structures (buds, bolls and total). RESULTS: Adult weevils and infested reproductive structures increased across both seasons despite the prevailing climatic variables. In both seasons, boll weevil adults and infested reproductive structures followed an aggregated distribution. The distances over which samples maintained spatial dependence varied from 0.7 to 43.4 m in the dry season and from 6.0 to 614.4 m in the wet season. Boll weevil infestations started at field borders and the infested reproductive structures (oviposition and/or feeding punctured) were greater than the adults regardless of cotton growth stage.CONCLUSION: Sampling for boll weevils in cotton fields should start at the field borders and focus on total infested reproductive structures (buds + bolls) and as cotton plants develop, sampling should focus on the field as a whole. Distances among samples will vary from 6 to 470 m. Thus, despite the cotton phenological stage or growing season, monitoring of boll weevil should be done by sampling total infested reproductive structures with a minimum distance of 6 m among samples.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Spatio‐temporal distribution of Anthonomus grandis grandis Boh. in tropical cotton fields

Oliveira

Araújo

Showler

et al. 2022

Pest Management Science

View full text Add to dashboard Cite

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“…A substantial body of research has consistently demonstrated that the decrease in biomass observed under heat stress conditions is intricately connected to the initiation of oxidative damage. This damage is predominantly driven by the elevated production of ROS, which disrupts cellular homeostasis and impairs various physiological processes critical for plant growth and development [ 41 , 42 , 43 , 44 ]. In the present investigation, we observed substantially higher levels of EL percentage, MDA, and H 2 O 2 in heat-exposed cotton plants, unequivocally demonstrating the profound impact of heat stress on inducing severe oxidative stress and membrane dysfunction in cotton plants ( Figure 3 A–C).…”

Section: Discussionmentioning

confidence: 99%

Salicylic Acid Priming Improves Cotton Seedling Heat Tolerance through Photosynthetic Pigment Preservation, Enhanced Antioxidant Activity, and Osmoprotectant Levels

Das,

Ghosh,

Nihad

et al. 2024

Plants

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The escalating global temperatures associated with climate change are detrimental to plant growth and development, leading to significant reductions in crop yields worldwide. Our research demonstrates that salicylic acid (SA), a phytohormone known for its growth-promoting properties, is crucial in enhancing heat tolerance in cotton (Gossypium hirsutum). This enhancement is achieved through modifications in various biochemical, physiological, and growth parameters. Under heat stress, cotton plants typically show significant growth disturbances, including leaf wilting, stunted growth, and reduced biomass. However, priming cotton plants with 1 mM SA significantly mitigated these adverse effects, evidenced by increases in shoot dry mass, leaf-water content, and chlorophyll concentrations in the heat-stressed plants. Heat stress also prompted an increase in hydrogen peroxide levels—a key reactive oxygen species—resulting in heightened electrolyte leakage and elevated malondialdehyde concentrations, which indicate severe impacts on cellular membrane integrity and oxidative stress. Remarkably, SA treatment significantly reduced these oxidative stresses by enhancing the activities of critical antioxidant enzymes, such as catalase, glutathione S-transferase, and ascorbate peroxidase. Additionally, the elevated levels of total soluble sugars in SA-treated plants enhanced osmotic regulation under heat stress. Overall, our findings reveal that SA-triggered protective mechanisms not only preserve photosynthetic pigments but also ameliorate oxidative stress and boost plant resilience in the face of elevated temperatures. In conclusion, the application of 1 mM SA is highly effective in enhancing heat tolerance in cotton and is recommended for field trials before being commercially used to improve crop resilience under increasing global temperatures.

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“…Global warming, caused by the rapid and increased emission of greenhouse gases like NO 2 and CO 2 from various industries and automobile sources, is responsible for the daily rise in average global temperature. Additionally, there are variations in how different plant species and developmental stages respond to high temperatures [ 5 , 6 , 7 ]. Researchers are gaining interest in identifying compounds that have the potential to protect plants against the negative effects of heat stress.…”

Section: Introductionmentioning

confidence: 99%

Appraisal of the Role of Gaseous Signaling Molecules in Thermo-Tolerance Mechanisms in Plants

Gautam,

Khan,

Nidhi

et al. 2024

Plants

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A significant threat to the ongoing rise in temperature caused by global warming. Plants have many stress-resistance mechanisms, which is responsible for maintaining plant homeostasis. Abiotic stresses largely increase gaseous molecules’ synthesis in plants. The study of gaseous signaling molecules has gained attention in recent years. The role of gaseous molecules, such as nitric oxide (NO), hydrogen sulfide (H2S), carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), and ethylene, in plants under temperature high-temperature stress are discussed in the current review. Recent studies revealed the critical function that gaseous molecules play in controlling plant growth and development and their ability to respond to various abiotic stresses. Here, we provide a thorough overview of current advancements that prevent heat stress-related plant damage via gaseous molecules. We also explored and discussed the interaction of gaseous molecules. In addition, we provided an overview of the role played by gaseous molecules in high-temperature stress responses, along with a discussion of the knowledge gaps and how this may affect the development of high-temperature-resistant plant species.

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Heat Tolerance in Cotton

Cited by 7 publications

References 86 publications

Spatio‐temporal distribution of Anthonomus grandis grandis Boh. in tropical cotton fields

Spatio‐temporal distribution of Anthonomus grandis grandis Boh. in tropical cotton fields

Salicylic Acid Priming Improves Cotton Seedling Heat Tolerance through Photosynthetic Pigment Preservation, Enhanced Antioxidant Activity, and Osmoprotectant Levels

Appraisal of the Role of Gaseous Signaling Molecules in Thermo-Tolerance Mechanisms in Plants

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