Effect of Water Logging Stress at Specific Growth Stages in Onion Crop

Ghodke, Pranjali; Shirsat, Dhananjay V.; Thangasamy, A.; Mahajan, Vijay; Salunkhe, Vanita Navnath; Khade, Yogesh; Singh, Major

doi:10.20546/ijcmas.2018.701.405

Cited by 26 publications

(19 citation statements)

References 17 publications

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“…On the contrary, also, the excess of water can induce the activation of the biosynthesis of bioactive molecules. In onion ( Allium cepa L.), waterlogging reduced bulb quality traits such as phenol, pyruvic acid, flavonoids, antioxidant activity, and total soluble solids content (Ghodke et al, 2018).…”

Section: Water Stress and Produce Qualitymentioning

confidence: 99%

Effect of Preharvest Abiotic Stresses on the Accumulation of Bioactive Compounds in Horticultural Produce

et al. 2019

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The quality of horticultural products is the result of the interaction of different factors, including grower’s crop management ability, genotype, and environment. Sub-optimal environmental conditions during plant growth can induce abiotic stresses and reduce the crop performance with yield reduction and quality losses. However, abiotic stresses can induce several physiological, biochemical, and molecular responses in plants, aiming to cope with the stressful conditions. It is well known that these abiotic stresses are also elicitors of the biosynthesis of many metabolites in plants, including a wide range of bioactive compounds, which firstly serve as functional molecules for crop adaptation, but they have also a great interest for their beneficial effects on human health. Nowadays, the consumer is oriented to low-energy foods with low fat content, but at the same time, growing attention is paid to the presence of bioactive molecules, which are recognized as health-related compounds and concur to the nutraceutical value of plant-derived foods. In this context, fruit and vegetables play an important role as sources of bioactive ingredients in the diet. At the cultivation level, the understanding of crop responses to abiotic stresses and how they act in the biosynthesis/accumulation of these bioactive compounds is crucial. In fact, controlled abiotic stresses can be used as tools for improving the nutraceutical value of fruit and vegetables. This review focuses on the quality of vegetables and fruits as affected by preharvest abiotic stressors, with particular attention to the effect on the nutraceutical aspects.

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Section: Water Stress and Produce Qualitymentioning

confidence: 99%

Effect of Preharvest Abiotic Stresses on the Accumulation of Bioactive Compounds in Horticultural Produce

et al. 2019

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“…Stress due to biotic and abiotic factors is among the major constraints in exploiting the yield potential of the onion crop. In addition to biotic stress, onions are highly vulnerable to abiotic stresses such as extreme temperature injuries, drought, and waterlogging [ 2 , 3 ]. In India, the majority of onions are produced during the post-monsoon season.…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analyses in contrasting onion (Allium cepa L.) genotypes for drought stress

et al. 2020

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Onion ( Allium cepa L.) is an important vegetable crop widely grown for diverse culinary and nutraceutical properties. Being a shallow-rooted plant, it is prone to drought. In the present study, transcriptome sequencing of drought-tolerant (1656) and drought-sensitive (1627) onion genotypes was performed to elucidate the molecular basis of differential response to drought stress. A total of 123206 and 139252 transcripts (average transcript length: 690 bases) were generated after assembly for 1656 and 1627, respectively. Differential gene expression analyses revealed upregulation and downregulation of 1189 and 1180 genes, respectively, in 1656, whereas in 1627, upregulation and downregulation of 872 and 1292 genes, respectively, was observed. Genes encoding transcription factors, cytochrome P450, membrane transporters, and flavonoids, and those related to carbohydrate metabolism were found to exhibit a differential expression behavior in the tolerant and susceptible genotypes. The information generated can facilitate a better understanding of molecular mechanisms underlying drought response in onion.

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“…Waterlogging at different growth stages has a significant impact on bulb production and yield. Ghodke et al [29] stated that waterlogging at early growth stages after transplanting and bulb initiation stage reduces the bulb quality and marketable bulb size. Waterlogging at 1-10 DAT (Days After Transplanting) produced large bulbs (84.6g) followed by 10-20 DAT (65.0g).…”

Section: Waterlogging Stressmentioning

confidence: 99%

Effect of Abiotic Stress on Onion Yield: A Review

Ratnarajah

Niroash²

2021

AIT

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Onion (Allium cepa L.) is a spice crop and a valuable economic crop cultivated in a variety of environments around the world. Because of its export demand, it is extremely important in terms of foreign exchange. Drought stress, waterlogging stress, heat stress, cold stress, and salinity stress all have an impact on onion growth, production, and yield in different ways. A lack of water causes low productivity, therefore to increase onion yield, a constant supply of water is needed. Onions are particularly susceptible to salt stress. The number of bulbs per unit area, height, and fresh weight of onion bulbs, are all affected by salinity in irrigation water. It has an effect on bulbing and the quality of harvested bulbs. Waterlogging has a major effect on bulb development and yield at various growth stages. Waterlogging stress in onions may prevent moving from source to sink, lowering bulb yield. The possible flavor of onions can be affected by the surrounding climate. The bulbing response is influenced by temperature, and the degree to which it is influenced varies by variety. As the temperature increases, the number of leaves decreases. The bulb diameter, bulb weight, and bulbing index (bulb/neck diameter) all increase as the temperature rises. This review provides an in-depth description of the effect of abiotic stress on onion yield.

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Effect of Water Logging Stress at Specific Growth Stages in Onion Crop

Cited by 26 publications

References 17 publications

Effect of Preharvest Abiotic Stresses on the Accumulation of Bioactive Compounds in Horticultural Produce

Effect of Preharvest Abiotic Stresses on the Accumulation of Bioactive Compounds in Horticultural Produce

Comparative transcriptome analyses in contrasting onion (Allium cepa L.) genotypes for drought stress

Effect of Abiotic Stress on Onion Yield: A Review

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