Plant–Environment Interaction in Developing Crop Species Resilient to Climate Change

Chand, Subhash; Indu, B.; Chauhan, Jyoti; Kumar, B. Prasanna; Kumar, Vivek; Dey, P. K.; Mishra, Udit Nandan; Sahu, Chandrasekhar; Singhal, Rajesh Kumar

doi:10.1201/9781003180579-1

Cited by 5 publications

(5 citation statements)

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“…Plants respond to drought and heat through various adaptive mechanisms [ 9 , 16 – 19 ]. Researchers have screened for heat and drought tolerance in various crops, such as cotton, cabbage, maize, tomatoes, and amaranth [ 17 , 20 – 25 ], by examining underlying traits like water content, photosynthesis, chlorophyll, biomass, specific leaf area, root growth, stomatal conductance, and water use efficiency.…”

Section: 0 Introductionmentioning

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 Introductionmentioning

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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“…Global agriculture is experiencing a myriad of challenges; among them, climate change is foremost (Corwin 2021;Chand et al 2022;Chaudhry and Sidhu 2022). Instability in rainfall patterns and intensity and varying temperatures have acute impacts on global hydrological cycles and ocean salinity (Du et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Global agriculture is experiencing a myriad of challenges; among them, climate change is foremost (Corwin 2021; Chand et al . 2022; Chaudhry and Sidhu 2022).…”

Section: Introductionmentioning

confidence: 99%

Salinity, alkalinity and their combined stress effects on germination and seedling growth attributes in oats (Avena sativa)

Ahmed,

Patel,

Singhal

et al. 2023

Crop & Pasture Science

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Context Under natural field conditions, plants confront the co-occurrence of stresses. A comprehensive insight into combined-stress tolerance is requisite to developing stress resilience in cultivars of oats (Avena sativa L.) for saline–alkaline soil. Aims This study was undertaken to characterise diverse oat genotypes for seedling growth attributes under two saline and alkaline concentrations and under combined saline–alkaline conditions. Methods We screened 105 accessions of the genus Avena with the following treatments: control, reverse osmosis water; moderate salinity (50 mM); high salinity (100 mM); moderate alkalinity (15 mM); high alkalinity (30 mM); combined moderate salinity–alkalinity (50 mM + 15 mM); and combined high salinity–alkalinity (100 mM + 30 mM). For saline treatments, NaCl and Na2SO4 salts were used in equimolar concentrations, and for alkaline treatments, NaHCO3 and Na2CO3. Key results Analysis of variance showed significant (P ≤ 0.001) variation among treatments and genotypes. Principal component analysis revealed 83.3% of the total genetic variation accounted for in the first two principal components. Correlation analysis showed a significant positive correlation between final germination percentage and seedling vigour index. Stress tolerance index identified tolerant and sensitive oat genotypes under high saline and alkaline stress, and multi-trait stability analysis confirmed the stability of performance of some genotypes under the imposed treatments. Conclusions According to the stress tolerance index and multi-trait stability analysis, genotypes IG-20-477, OS-377, IG-20-798 and IG-20-575 were found suitable for high saline–alkaline stress. Implications The identified tolerant oat genotypes can be used as donors for the development of stress-resilient oat cultivars, and for generating mapping populations in oat.

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“…The genus Brassica consists over hundred species of rapeseed ( Brassica napus L.), cabbage ( Brassica oleracea L.), turnip rape ( Brassica rapa L.), and mustard ( Brassica juncea L.), which are predominantly cultivated for oil, vegetables, condiments, and fodder purposes (Raza et al, 2020 ). Currently, amid the dynamic abiotic constituents of the environment, the steadily and continuously ascending ambient temperature due to global warming, which is drastically influencing on plant growth, development, and productivity (Raza et al, 2019 ; Chand et al, 2022 ). In the Asian countries including India, where the major cultivated area is under rain-fed agro–ecosystem, the time of sowing solely depends on the rainfall availability.…”

Section: Introductionmentioning

confidence: 99%

Alterations of Oxidative Stress Indicators, Antioxidant Enzymes, Soluble Sugars, and Amino Acids in Mustard [Brassica juncea (L.) Czern and Coss.] in Response to Varying Sowing Time, and Field Temperature

et al. 2022

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The impact of elevated temperature at the reproductive stage of a crop is one of the critical limitations that influence crop growth and productivity globally. This study was aimed to reveal how sowing time and changing field temperature influence on the regulation of oxidative stress indicators, antioxidant enzymes activity, soluble sugars (SS), and amino acids (AA) in Indian Mustard. The current study was carried out during the rabi 2017–2018 and 2018–2019 where, five varieties of mustard viz. Pusa Mustard 25 (PM-25) (V1), PM-26 (V2), BPR-541-4 (V3), RH-406 (V4), and Urvashi (V5) were grown under the field conditions on October 30 (normal sowing; S1), November 18 (late sowing; S2) and November 30 (very late sowing; S3) situations. The S1 and S3 plants, at mid-flowering stage, showed a significant variation in accumulation of SS (8.5 and 17.3%), free AA (235.4 and 224.6%), and proline content (118.1 and 133%), respectively, and played a crucial role in the osmotic adjustment under stress. The results showed that S3 sowing, exhibited a significant induction of the hydrogen peroxide (H2O2) (110.2 and 86.6%) and malondialdehyde (23.5 and 47.5%) concentrations, respectively, which indicated the sign of oxidative stress in plants. Interestingly, the polyphenol oxidase, peroxidase, superoxide dismutase, and catalase enzyme activities were also significantly increased in S3 plants compared to S1 plants, indicating their significant roles in ameliorating the oxidative stress. Furthermore, the concentration of fatty acid levels such as palmitic, stearic, oleic, and linoleic acids level also significantly increased in S3 plants, which influenced the seed and oil quality. The study suggests that the late sowing significantly impaired the biochemical mechanisms in Indian mustard. Further, the mustard variety V4 (RH-406) was found to be effective for cultivation as well as environmental stress adoption in Indian soils, and it could be highly useful in breeding for developing heat-tolerant genotypes for ensuring the food security.

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Plant–Environment Interaction in Developing Crop Species Resilient to Climate Change

Cited by 5 publications

References 0 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

Salinity, alkalinity and their combined stress effects on germination and seedling growth attributes in oats (Avena sativa)

Alterations of Oxidative Stress Indicators, Antioxidant Enzymes, Soluble Sugars, and Amino Acids in Mustard [Brassica juncea (L.) Czern and Coss.] in Response to Varying Sowing Time, and Field Temperature

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