Role of Global Climate Change in Crop Yield Reductions

Gupta, Gyan Prakash

doi:10.1007/978-981-15-3481-2_5

Cited by 2 publications

(4 citation statements)

References 131 publications

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“…Table 2), which negatively correlates with the equivalent water thickness (Watt et al, 2021), would support the increase in thickness of leaves from plants grown at RCP 8.5 (Figure 1B), provided that plants (Gupta, 2020).…”

Section: Discussionmentioning

confidence: 73%

“…Ambient CO 2 and temperature would influence the equilibrium between photosynthetic carbon assimilation and the photorespiration process (Gupta, 2020). It is well known that high CO 2 concentrations increase the carboxylase activity of RubisCO over its oxygenase activity.…”

Section: Discussionmentioning

confidence: 99%

“…The rise in CO 2 and temperature related to climate change will have an impact on many aspects of plant metabolism and development. Moreover, the plant responses and the final outcome of climate change on crops would be different depending on whether they are C 3 , C 3 /C 4 or C 4 species (Gupta, 2020). Improving our knowledge about the capacity for adaptation of particular crops, along with their main defence / adaptive mechanisms to cope with climate change, would be crucial in designing strategies to improve crop tolerance.…”

Section: Discussionmentioning

confidence: 99%

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Diverse projected climate change scenarios affect the physiology of broccoli plants to different extents

Pineda,

Barón,

Pérez‐Bueno

2024

Physiologia Plantarum

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Climate change caused by global warming involves crucial plant growth factors such as atmospheric CO2 concentration, ambient temperature or water availability. These stressors usually co‐occur, causing intricate alterations in plant physiology and development. This work focuses on how elevated atmospheric CO2 levels, together with the concomitant high temperature, would affect the physiology of a relevant crop, such as broccoli. Particular attention has been paid to those defence mechanisms that contribute to plant fitness under abiotic stress. Results show that both photosynthesis and leaf transpiration were reduced in plants grown under climate change environments compared to those grown under current climate conditions. Furthermore, an induction of carbohydrate catabolism pointed to a redistribution from primary to secondary metabolism. This result could be related to a reinforcement of cell walls, as well as to an increase in the pool of antioxidants in the leaves. Broccoli plants, a C3 crop, grown under an intermediate condition showed activation of those adaptive mechanisms, which would contribute to coping with abiotic stress, as confirmed by reduced levels of lipid peroxidation relative to current climate conditions. On the contrary, the most severe climate change scenario exceeded the adaptive capacity of broccoli plants, as shown by the inhibition of growth and reduced vigour of plants. In conclusion, only a moderate increase in atmospheric CO2 concentration and temperature would not have a negative impact on broccoli crop yields.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Diverse projected climate change scenarios affect the physiology of broccoli plants to different extents

Pineda,

Barón,

Pérez‐Bueno

2024

Physiologia Plantarum

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“…In addition to improving plant tolerance against several abiotic stressors, this eco-friendly innovation enhances nutrient use efficiency, plant growth, and crop productivity [267]. The stimulatory effects of plant biostimulants, such as smoke-water on Sceletium tortuosum seeds [268], karrikinolide on Lactuca sativa [269] and Aristolochia debilis [270] seeds, commercial brown seaweed extract (Kelpak ® ) on Abelmoschus esculentus [271] and Ceratotheca triloba [272] seeds, and yeast extract on Oryza sativa seeds [273], have been reported.…”

Section: Plant Biostimulant Primingmentioning

confidence: 99%

Oxidative Stress, Ageing and Methods of Seed Invigoration: An Overview and Perspectives

et al. 2021

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The maintenance of seed quality during the long-term conservation of plant genetic resources is crucial for averting the projected food crises that are linked to the changing climate and rising world population. However, ageing-induced loss of seed vigour and viability during storage remains an inevitable process that compromises productivity in several orthodox-seeded crop species. Seed ageing under prolonged storage, which can occur even under optimal conditions, induces several modifications capable of causing loss of intrinsic physiological quality traits, including germination capacity and vigour, and stand establishment. The problems posed by seed ageing have motivated the development of various techniques for mitigating their detrimental effects. These invigoration techniques generally fall within one of two categories: (1) priming or pre-hydrating seeds in a solution for improved post-harvest performance, or (2) post-storage reinvigoration which often involves soaking seeds recovered from storage in a solution. Seed priming methods are generally divided into classical (hydropriming, osmopriming, redox priming, biostimulant priming, etc.) and advanced (nanopriming, magnetopriming and priming using other physical agents) techniques. With the increasing popularity of seed invigoration techniques to achieve the much-desired enhanced productivity and resilience in the face of a changing climate, there is an urgent need to explore these techniques effectively (in addition to other important practices such as plant breeding, fertilizer application, and the control of pests and diseases). This review aims to provide an overview of ageing in orthodox seeds and invigoration techniques that can enhance desirable agronomic and physiological characters.

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Role of Global Climate Change in Crop Yield Reductions

Cited by 2 publications

References 131 publications

Diverse projected climate change scenarios affect the physiology of broccoli plants to different extents

Diverse projected climate change scenarios affect the physiology of broccoli plants to different extents

Oxidative Stress, Ageing and Methods of Seed Invigoration: An Overview and Perspectives

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