Effect of Cold Stress on Field Performance, Chlorophyll Fluorescence, Electrolyte Leakage and Leaf Gas Exchange Parameters of Potato (Solanum tuberosum L.) Genotypes

Angmo, Dechen; Sharma, Sat Pal; Kalia, Anu; Brar, Navjot Singh; Bhardwaj, Vinay

doi:10.1007/s11540-022-09593-6

Cited by 8 publications

(2 citation statements)

References 45 publications

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“…An increase in electrolyte leakage under stress indicates membrane injury, which reflects the membrane’s stability [ 75 ]. Many plant stressors, such as drought and heat, initially attack cell membranes and turgor [ 76 ].…”

Section: 0 Discussionmentioning

confidence: 99%

Rapid and low-cost screening for single and combined effects of drought and heat stress on the morpho-physiological traits of African eggplant (Solanum aethiopicum) germplasm

Opoku,

Adu,

Asare

et al. 2024

PLoS ONE

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Drought and heat are two stresses that often occur together and may pose significant risks to crops in future climates. However, the combined effects of these two stressors have received less attention than single-stressor investigations. This study used a rapid and straightforward phenotyping method to quantify the variation in 128 African eggplant genotype responses to drought, heat, and the combined effects of heat and drought at the seedling stage. The study found that the morphophysiological traits varied significantly among the 128 eggplants, highlighting variation in response to abiotic stresses. Broad-sense heritability was high (> 0.60) for chlorophyll content, plant biomass and performance index, electrolyte leakage, and total leaf area. Positive and significant relationships existed between biomass and photosynthetic parameters, but a negative association existed between electrolyte leakage and morpho-physiological traits. The plants underwent more significant stress when drought and heat stress were imposed concurrently than under single stresses, with the impact of drought on the plants being more detrimental than heat. There were antagonistic effects on the morphophysiology of the eggplants when heat and drought stress were applied together. Resilient genotypes such as RV100503, RV100501, JAMBA, LOC3, RV100164, RV100169, LOC 3, RV100483, GH5155, RV100430, GH1087, GH1087*, RV100388, RV100387, RV100391 maintained high relative water content, low electrolyte leakage, high Fv/Fm ratio and performance index, and increased biomass production under abiotic stress conditions. The antagonistic interactions between heat and drought observed here may be retained or enhanced during several stress combinations typical of plants’ environments and must be factored into efforts to develop climate change-resilient crops. This paper demonstrates improvised climate chambers for high throughput, reliable, rapid, and cost-effective screening for heat and drought and combined stress tolerance in plants.

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Section: 0 Discussionmentioning

confidence: 99%

Rapid and low-cost screening for single and combined effects of drought and heat stress on the morpho-physiological traits of African eggplant (Solanum aethiopicum) germplasm

Opoku,

Adu,

Asare

et al. 2024

PLoS ONE

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“…Freezing stress decreases the contents of total lipids and stimulates lipid degradation, accumulating free fatty acids. In previous studies, researchers reported that the more successful the plant species were in maintaining the integrity of their cell membranes, the fewer electrolytes leaked from their cell membranes, and their SU was higher (Nabati et al, 2020;Angmo et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Prolonged exposure to freezing stress reduces the ability of chickpea seedlings to effectively tolerate extremely low temperatures

Nabati,

Nezami,

Hasanfard

et al. 2023

Front. Plant Sci.

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The duration and intensity of freezing stress are the most critical factors determining injury in autumn chickpeas, limiting their production and development. To evaluate the effects of freezing temperature and duration on the survival rate (SU%), as well as the physiological and biochemical characteristics of autumn chickpea seedlings, a study was conducted using five different temperatures (0, -6, -8, -10, and -12°C) and five different durations (1 h, 2 h, 3 h, 4 h, and 5 h) of exposure to freezing stress. The SU% of chickpea seedlings decreased to zero after exposure to temperatures of -10°C and -12°C for 5 hours. As the temperature decreased from -8°C to -12°C and the duration of exposure to freezing stress increased from 1 to 5 hours, the leaf membrane stability index decreased by 33%, 48%, 46%, 57%, and 58%, respectively. The highest and lowest total pigment contents were observed after 1 hour at 0°C and 5 hours at -12°C, respectively. The maximum photochemical efficiency of photosystem II (Fv’/Fm’) was not affected by temperatures as low as -8°C in any of the time treatments during the recovery period. However, this parameter’s value decreased as the freezing stress duration increased. At -12°C, the activity of ascorbate peroxidase, catalase, and peroxidase increased by 44.6%, 38.3%, and 33.0%, respectively, as the duration of stress was increased from 1 hour to 5 hours. A positive and significant correlation was observed between plant dry weight, membrane stability index, photosynthetic pigment content, and Fv’/Fm’ with SU% after exposure to freezing stress. The minimum temperature and the maximum duration of freezing stress tolerance in chickpea seedlings were observed at -12°C for two hours. Our findings confirm that prolonging the freezing duration disrupts the defense mechanisms of chickpea seedlings. Therefore, future studies on breeding chickpeas tolerant to freezing stress should concentrate on attributes strongly correlated with SU%.

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Characterization of a segregating potato (Solanum tuberosum L.) population for frost tolerance by leaf morpho-anatomy analysis and horticultural traits in India

Angmo,

Sharma,

Kalia

et al. 2024

Genet Resour Crop Evol

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Effect of Cold Stress on Field Performance, Chlorophyll Fluorescence, Electrolyte Leakage and Leaf Gas Exchange Parameters of Potato (Solanum tuberosum L.) Genotypes

Cited by 8 publications

References 45 publications

Rapid and low-cost screening for single and combined effects of drought and heat stress on the morpho-physiological traits of African eggplant (Solanum aethiopicum) germplasm

Rapid and low-cost screening for single and combined effects of drought and heat stress on the morpho-physiological traits of African eggplant (Solanum aethiopicum) germplasm

Prolonged exposure to freezing stress reduces the ability of chickpea seedlings to effectively tolerate extremely low temperatures

Characterization of a segregating potato (Solanum tuberosum L.) population for frost tolerance by leaf morpho-anatomy analysis and horticultural traits in India

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