Polyethylene Glycol (PEG) Induced Changes in Germination, Seedling Growth and Water Relation Behavior of Wheat (Triticum aestivum L.) Genotypes

Faijunnahar, Most.; Baque, Abdullahil; Habib, Md. Ahsan; Hossain, H. M. M. Tariq

doi:10.13189/ujps.2017.050402

Cited by 18 publications

(10 citation statements)

References 27 publications

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“…Interestingly, seeds primed with 10% PEG exhibited better seedling growth than other priming treatments, as indicated by higher leaf area and root fresh weight (Table 3). This result was in line with report of Faijunnahar et al (2017) that the best seedling growth was obtained when wheat seed was treated with 10% PEG compared to non-priming, hydropriming, and seedling growth gradually decreased in higher PEG concentrations. The suppression of seedling growth at high PEG concentrations has been reported as due to nutrient imbalance, mobility of toxic ions, and reduction in solubility of applied solutes (Abiri et al, 2016).…”

Section: Seed Priming On Germination and Seedling Growthsupporting

confidence: 92%

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Kartika

Lakitan

Ria

2021

CMUJNS

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Drought stress during vegetative and/or generative stages could cause massive reduction in rice yield. This study evaluated effectiveness of hydro- and osmo-priming on improving seed germination, growth and development of upland rice under drought stress during late vegetative, booting, or heading stage. Treatments consisted of hydro-priming and osmo-priming consisted of three polyethylene glycol (PEG) concentrations i.e. 10%, 15%, and 20%. Results showed that application of osmo-priming at 10% PEG required longer time (21.93 hours) to reach 50% germination, lower germination and lower vigor index. However, after germination, seeds primed with 10% PEG exhibited better seedling growth than other seed priming treatments. Effects of seed priming on yield components were overshadowed by drought exposures. Drought imposed during vegetative stage did not significantly affect yield; however, regardless of seed priming treatments, yield reduction was inevitable in rice plants exposed to drought during booting or heading stages. Rice plant shortened time to reached physiological maturity as an adaptive mechanism if drought treatment was applied during heading stage. Keywords: Germination, Polyethylene glycol, Seedling growth, Seed priming, Yield component

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Section: Seed Priming On Germination and Seedling Growthsupporting

confidence: 92%

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Kartika

Lakitan

Ria

2021

CMUJNS

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“…Increased root length by osmopriming with PEG was also earlier reported in chickpea (Khadraji et al, 2017). Faijunnahar et al, (2017) concluded that the considerable increase in root length in the primed seeds of wheat might be due to increased metabolic activities in the primed seeds than non-primed.…”

Section: Root Lengthsupporting

confidence: 64%

Effect of Concentration and Duration of Osmopriming on Germination and Vigor of Aged Seed of Chickpea

Varshini¹,

Reddy²,

Radhika³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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To standardize the best concentration and duration of osmopriming of aged seed of chickpea variety, NBeG-3 with Polyethylene Glycol, an experiment was conducted in Factorial Completely Randomized Design with four replications. The seed was subjected to osmopriming with different concentrations of PEG 6000 viz., 0, -0.5, -1.0, -1.5 and -2.0 MPa for various durations viz., 3, 6, 9, 12 and 24 hours. The seed quality was assessed by testing for germination in between paper method and sand method. In both the methods of testing, concentration of PEG, duration of osmopriming and their interaction exhibited highly significant effect on germination, seedling length and seedling vigor index. Among all the concentrations used, seed primed with -0.5 MPa PEG recorded highest germination, root length, shoot length, seedling length, root / shoot ratio and seedling vigor index. Among the various durations, osmopriming for 6 hours showed highest improvement in seed quality. The interaction effect of seed priming with -0.5 MPa PEG for 6 hours also showed highest improvement in seed quality attributes.

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“…However, germination speed (GS) and mean daily germination (MDG) were significantly improved, especially under suboptimum temperature conditions. Similar to us, Kaur et al, (2002) in chickpea, Farooq et al, (2005) in tomato and Faijunnahar et al, (2017) in wheat have reported improved germination parameters by increasing PEG concentration up to 10% (∼-0.5MPa). A further increase might induce some adverse effects related with decreased water uptake in the osmo priming treatments, especially at water potential lower than -0.5 MPa of PEG (Elkoca et al, 2007).…”

Section: Discussionsupporting

confidence: 77%

“…It provided significantly higher germination parameters than control and hydro primed seeds, especially under suboptimum temperatures. Similarly, positive effects of PEG osmo priming were previously reported in wheat (Faijunnahar et al, 2017) and sorghum (Zhang et al, 2015). As it is explained, the higher and synchronized germination of primed seeds primarily occurs due to reduction in the lag time of imbibitions, enzyme activation, build-up of germination enhancing metabolites, metabolic repair during imbibition, and osmotic adjustment (Hussain et al, 2016b).…”

Section: Discussionsupporting

confidence: 60%

“…Priming is defined as a physiological process by which a plant prepares to respond to imminent abiotic stress more quickly or aggressively (Jisha et al, 2013). Due to that, seedlings emerging from primed seeds showed early and uniform germination (Damalas et al, 2019;Faijunnahar et al, 2017;Hamidi and Pirasteh-anosheh, 2013), especially under adverse germination conditions. The beneficial effects of priming on seed germination are related to the repair and build-up of nucleic acids, enhanced synthesis of RNA and proteins, repair of membranes, and enhanced respiratory activity of seeds (Elkoca et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

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Seed Germination and Initial Growth of Pepper Seedlings is Influenced by Environment Temperature and Priming Method

Sallaku¹,

Vuksani²,

Balliu³

2020

JAS

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The effects of different environment temperatures, priming treatments and priming durations on germination parameters and early growth of pepper seedlings were investigated. Seeds were hydro primed in distilled water, or osmo primed in two different water potentials (-0.15 and -0.5 MPa) of polyethylene glycol (PEG) 8000. Both, hydro primed and osmo primed seeds were subject of two different imbibitions periods, 48 and 72 hrs. In addition to primed seeds, an equal sample of non primed seeds was included in the experiment as a control variant. Following priming, the seeds were subjected to germination tests at two different environment temperatures, respectively 18 0C and 24 0C. In general, there was no significant effect of hydro priming on germination parameters or early growth of pepper seedlings. On the contrary, significantly higher germination percentage and germination speed and significantly shorter mean germination time than the non primed seeds were obtained due to seed osmo priming by PEG. Similarly, an enhanced seedling growth, especially under suboptimum temperature conditions was evidenced in PEG primed seedlings. Apart from germination speed, the increase of PEG concentration from -0.15 to -0.5 MPa had no effect to germination parameters of pepper seeds. The extent of the imbibitions period over 48 hrs did also have no benefits on germination parameters.

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Polyethylene Glycol (PEG) Induced Changes in Germination, Seedling Growth and Water Relation Behavior of Wheat (Triticum aestivum L.) Genotypes

Cited by 18 publications

References 27 publications

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Hydro- and Osmo-priming Effects on Upland Rice Exposed to Drought Conditions at Vegetative and Reproductive Stages

Effect of Concentration and Duration of Osmopriming on Germination and Vigor of Aged Seed of Chickpea

Seed Germination and Initial Growth of Pepper Seedlings is Influenced by Environment Temperature and Priming Method

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