Influence of Seed pre-treatment by UV-A and UV-C radiation on germination and growth of Mung beans

Hamid, Neelofer; Jawaid, Faiza

doi:10.15228/2011.v01.i04.p04

Cited by 26 publications

(10 citation statements)

References 13 publications

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“…(), Siddiqui et al . (), Hamid & Javvaid () and Neelamegam & Sutha (). Here, root mass was stimulated to the greatest extent (23.1%), while no differences in primary root length or lateral root number were observed.…”

Section: Discussionmentioning

confidence: 99%

“…However, increases in the total germination percentage of UV‐C‐treated seed have been reported by Siddiqui et al . (), Hamid & Javvaid () and Neelamegam & Sutha ().…”

Section: Discussionmentioning

confidence: 99%

“…Further benefits of UV‐C seed treatment include increased dry mass, increased germination rate, improved crop colour, delayed maturity, increased seedling vigour index and an increased number of root nodules (Brown et al ., ; Hamid & Javvaid, ; Siddiqui et al ., ; Neelamegam & Sutha, ). Additionally, lettuce ( Lactuca sativa ) and green bean ( Phaseolus vulgaris ) plants grown from UV‐C‐treated seed have shown an increased tolerance to salt stress (Aboul Fotouh et al ., ; Ouhibi et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Hormetic UV‐C seed treatments for the control of tomato diseases

et al. 2019

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Hormesis is a dose response phenomenon in which low, non-damaging doses of a stressor bring about a positive response in the organism undergoing treatment. Evidence is provided here that hormetic UV-C treatments of tomato seed can control disease caused by Botrytis cinerea, Fusarium oxysporum f. sp. lycopersici (FOL) and f. sp. radicis-lycopersici (FORL) on tomato (Solanum lycopersicum). Treating seeds with a 4 kJ m À2 dose of UV-C significantly reduced both the disease incidence and progression of B. cinerea, with approximately 10% reductions in both on cv. Shirley. Disease severity assays for FOL and FORL on cv. Moneymaker showed dose-dependent responses: UV-C treatments of 4 and 6 kJ m À2 significantly reduced the disease severity scores of FOL, whilst only the 6 kJ m À2 showed significant reductions for FORL. To determine the effects of treatment on germination and seedling growth, UV-C doses of 4, 8 and 12 kJ m À2 were performed on cv. Shirley. No negative impacts on germination or seedling growth were observed for any of the treatments. However, the 8 kJ m À2 treatment showed significant biostimulation, with increases in seedling, root and hypocotyl dry weight of 11.4%, 23.1% and 12.0%, respectively, when compared to the control. Furthermore, significant increases in the root-mass fraction (10.6%) and root:shoot ratio (13.1%) along with a decrease in shoot-mass fraction (2.0%) indicates that the 8 kJ m À2 treatment stimulated root growth to the greatest extent. There was no effect on hypocotyl and primary root length or the number of lateral roots, indicating no adverse effects to basic root architecture or seedling growth.

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Section: Discussionmentioning

confidence: 99%

“…However, increases in the total germination percentage of UV‐C‐treated seed have been reported by Siddiqui et al . (), Hamid & Javvaid () and Neelamegam & Sutha ().…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hormetic UV‐C seed treatments for the control of tomato diseases

et al. 2019

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“…The information about the possible use of UV-A radiation as seed invigoration treatment is very scarce. Hamid and Jawaid (2011) investigated the effects of UV-A radiation on mung bean ( Vigna radiata L.) seeds. The results of this study were very promising, showing that pre-sowing UV-A treatment stimulated germination rate, as well as, seedling performance reflected in the values of specific leaf area, root and shoot length and dry weight.…”

Section: “Priming” Seeds With Ultraviolet Radiation: a Difficult Taskmentioning

confidence: 99%

Physical Methods for Seed Invigoration: Advantages and Challenges in Seed Technology

et al. 2016

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In the context of seed technology, the use of physical methods for increasing plant production offers advantages over conventional treatments based on chemical substances. The effects of physical invigoration treatments in seeds can be now addressed at multiple levels, ranging from morpho-structural aspects to changes in gene expression and protein or metabolite accumulation. Among the physical methods available, “magneto-priming” and irradiation with microwaves (MWs) or ionizing radiations (IRs) are the most promising pre-sowing seed treatments. “Magneto-priming” is based on the application of magnetic fields and described as an eco-friendly, cheap, non-invasive technique with proved beneficial effects on seed germination, vigor and crop yield. IRs, as γ-rays and X-rays, have been widely regarded as a powerful tool in agricultural sciences and food technology. Gamma-rays delivered at low dose have showed to enhance germination percentage and seedling establishment, acting as an actual ‘priming’ treatment. Different biological effects have been observed in seeds subjected to MWs and X-rays but knowledge about their impact as seed invigoration agent or stimulatory effects on germination need to be further extended. Ultraviolet (UV) radiations, namely UV-A and UV-C have shown to stimulate positive impacts on seed health, germination, and seedling vigor. For all mentioned physical treatments, extensive fundamental and applied research is still needed to define the optimal dose, exposition time, genotype- and environment-dependent irradiation conditions. Electron paramagnetic resonance has an enormous potential in seed technology not fully explored to monitor seed invigoration treatments and/or identifying the best suitable irradiation dose or time-point to stop the treatment. The present manuscript describes the use of physical methods for seed invigoration, while providing a critical discussion on the constraints and advantages. The future perspectives related to the use of these approaches to address the need of seed technologists, producers and trade markers will be also highlighted.

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“…The stimulating effect of UV-A radiation on legume (Vigna radiata L.) seeds is described in (Hamid & Jawaid, 2011). It is mentioned here that pre-treatment of seed with UV-A (366 nm) radiation improves the germination rate, specific leaf area, dry mass, length of roots and shoots as compare to UV-C (254 nm) exposed seed.…”

Section: Introductionmentioning

confidence: 97%

Effect of UV-C radiation on basic indices of growth process of winter wheat (Triticum aestivum L.) seeds in pre-sowing treatment

Semenov

Короткова

Сахно

et al. 2020

AAS

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An investigation of the effects of UV-C radiation from source having the power of 20 W on improvement of seed quality of Ukrainian winter wheat (Triticum aestivum L.) six cultivars: ‘Gratsіia Myronivska’, ‘Trudivnytsia Myronivska’, ‘Vezha Myronivska’, ‘Mudrist Odeska’, ‘Nyva Odeska’ and ‘Lira Odeska’, has been done. In the performed experiment the UV-C irradiation in the range of 50-1000 J m-2 was applied. Based on the experimental results it is concluded that irradiation of UV-C on wheat seeds stimulated the seed vigour and germination. It has been established the optimal irradiation dose of UV-C radiation - 250 J m-2 for ‘Trudіvnitsia Myronіvska’, ‘Mudrіst Odeska’, ‘Nyva Odeska’, ‘Lіra Odeska’ cultivars and 500 J m-2 for ‘Hratsіia Myronіvska’ and ‘Vezha Myronіvska’ cultivars, which leads to maximum effect. The highest biometric indices of seedling structural elements were obtained from the seeds of all wheat cultivars, for which the values of seed vigour and germination were also maximum ones, i.e. at the same irradiation dose.

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Influence of Seed pre-treatment by UV-A and UV-C radiation on germination and growth of Mung beans

Cited by 26 publications

References 13 publications

Hormetic UV‐C seed treatments for the control of tomato diseases

Hormetic UV‐C seed treatments for the control of tomato diseases

Physical Methods for Seed Invigoration: Advantages and Challenges in Seed Technology

Effect of UV-C radiation on basic indices of growth process of winter wheat (Triticum aestivum L.) seeds in pre-sowing treatment

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