Induction of drought resistance in bell pepper (Capsicum annuum var. grossum) with osmopriming Polyethylene Glycol (PEG) 4000

PRELLIA, ARSITA; Solichatun, Solichatun; Pitoyo, Ari

doi:10.13057/asianjagric/g070105

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Nitrate reductase enzymes contribute to the assimilation of nitrate, which in uences plant development and yield. When plants were subjected to drought conditions, nitrate reductase activity decreased relative to optimal environmental circumstances (Prella et al, 2023). The nitrate reductase activity (NRA) can be employed as a plant selection measure since it correlates positively with production, dry weight,total nitrogen, and plant yield.…”

Section: Capsicum and Droughtmentioning

confidence: 99%

Effect of Polyethylene Glycol (PEG)-induced drought stress on germination and seedling development of capsicum varieties

Bhujel,

Yadav,

Karki

et al. 2024

Preprint

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Food security is one of the major global challenges of the twenty-first century. Crop yield is estimated to decline by 5 to 30% from 2050 onwards compared to 1990. Climate change has a major impact on crop production. Drought stress is a significant environmental factor affecting plant growth and crop productivity and understanding its impact on capsicum production is crucial for development of drought-tolerant varieties. This experiment was carried out to find the drought tolerant varieties. The study was conducted in two factorial completely randomized designs with three replications, subjecting capsicum seeds of four different varieties to three different polyethylene glycol concentrations. The observation revealed that Boxer and California wonder showed statistically similarity in most of the growth parameters where Ganga showed significantly reduced performances in few parameters at seedling stage with increase in PEG concentration. Unlike these varieties, Red Variety showed drastic reduction in all the parameters. Results showed these varieties were more tolerant even up to higher drought conditions up to -0.36 MPa, but the red variety was susceptible even to lower drought conditions (-0.18 MPa). The four capsicum varieties were grouped into two clusters, with the Red variety genotype in one and Boxer, California Wonder, and Ganga under another. The promising varieties Boxer, California Wonder, and Ganga were identified as drought tolerant and can be utilized in breeding programs aimed at developing drought tolerant capsicum varieties or can be recommended in areas with lower irrigation facilities. Based on the results, it is recommended to explore the genetic basis of drought tolerance in capsicum genotypes. This can be achieved through genetic studies, such as quantitative trait loci (QTL) mapping and genomic selection, to identify the key genes and markers associated with drought tolerance in these tolerant varieties Boxer, Ganga, and California Wonder. Furthermore, breeding programs should be initiated to develop new capsicum varieties with enhanced drought tolerance, incorporating the identified drought-tolerant genetic traits and genes.

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Section: Capsicum and Droughtmentioning

confidence: 99%

Effect of Polyethylene Glycol (PEG)-induced drought stress on germination and seedling development of capsicum varieties

Bhujel,

Yadav,

Karki

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Drought stress disrupts plant metabolic activity, including carotenoids, and reduces Nitrate Reductase Activity (NRA), which influences plant development and production. This decrease in nitrate reductase activity is a result of drought (Prella et al, 2023). Drought is associated with osmotic stress, which alters ion transport and homeostasis in the cell, lowering agricultural productivity (Kumar et al, 2013).…”

Section: Introduction 11 Background Of Tomato and Droughtmentioning

confidence: 99%

Assessment of germination and seedling development of tomato genotypes under polyethylene glycol (PEG)-induced drought

Yadav,

Bhujel,

Bhandari

et al. 2024

Preprint

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Food security is one of the major global challenges of the twenty-first century. Crop yield is estimated to decline by 5 to 30% from 2050 onwards compared to 1990. Climate change has a major impact on crop production. Drought stress is a significant environmental factor affecting plant growth and crop productivity, and understanding its impact on tomato production is crucial for the development of drought-tolerant varieties. The experiment was carried out to find the drought tolerant genotypes. The study was conducted in two factorial completely randomized designs with three replications, subjecting tomato seeds of five different genotypes to three different polyethylene glycol 6000 induced drought stress. The observation revealed that Monoprecas showed increase in root length, shoot length, canopy spread, root spread lengthwise, root spread breadthwise, root weight, shoot weight, total biomass, root-shoot ratio, vigor index, and vigor test index with increase in PEG concentration 3% (-0.18Mpa), and then decreases with higher concentration 6% (-0.36Mpa). NGRCO9569, NGRCO9571, and Khumal 2 showed continuous increase in most of the observations with an increase in PEG concentration 3% (-0.18Mpa) and 6% (-0.36Mpa). Unlike these genotypes, Srijana showed drastic reduction in all the observations and unexpectedly increased in days of first germination and days to fifty percent germination as compared to control. Results showed these varieties were more tolerant even up to higher drought conditions up to -0.36 Mpa but Srijana were susceptible even to lower drought conditions (-0.18 Mpa). The five tomato varieties were grouped into two clusters, Srijana and NGRCO9571 genotypes in one and NGRCO9569, Monoprecas, and Khumal 2 under another based on the unweighted pair group method with arithmetic mean. The promising genotypes NGRCO9569, Khumal 2, and Monoprecas were identified as more drought tolerant and be utilized in breeding programs aimed at developing drought tolerant tomato varieties or can be recommended at areas with lower irrigation facilities. The findings highlight the vulnerability of tomato genotypes, especially the commercial and hybrid to drought stress during the early stages of growth. The variation observed among different tomato genotypes indicates the presence of genetic variability for drought tolerance, suggesting the potential for breeding drought-tolerant tomato varieties. Further research and breeding efforts should focus on identifying and utilizing drought-tolerant genetic traits in tolerant varieties NGRCO9569, Khumal 2, and Monoprecasto enhance the resilience of tomato plants to drought stress. Furthermore, breeding programs should be initiated to develop new tomato varieties with enhanced drought tolerance, incorporating the identified drought-tolerant genetic traits and genes.

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Induction of drought resistance in bell pepper (Capsicum annuum var. grossum) with osmopriming Polyethylene Glycol (PEG) 4000

Cited by 2 publications

References 24 publications

Effect of Polyethylene Glycol (PEG)-induced drought stress on germination and seedling development of capsicum varieties

Effect of Polyethylene Glycol (PEG)-induced drought stress on germination and seedling development of capsicum varieties

Assessment of germination and seedling development of tomato genotypes under polyethylene glycol (PEG)-induced drought

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