Gamma radiation effects on seed germination, growth and pigment content, and ESR study of induced free radicals in maize (Zea mays)

Marcu, Delia; Damian, Grigore; Cosma, C.; Cristea, Vasile

doi:10.1007/s10867-013-9322-z

Cited by 170 publications

(106 citation statements)

References 17 publications

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“…Maize seeds treated with gamma radiation at radiosensitive doses showed reduced germination rate, lower photosynthetic pigment content, and higher reactive oxygen species (ROS) content (i.e., free radicals) than did non-irradiated seeds (MARCU et al, 2013). Çelik et al (2014) investigated the response of soybean plants to high gamma radiation doses (300 Gy) and found a reduction in leaf size and concentration of photosynthetic pigments and proteins in plants grown from irradiated seeds compared to plants derived from non-irradiated seeds.…”

Section: Resultsmentioning

confidence: 99%

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High gamma irradiation doses and long storage times reduce soybean seed quality

Nobre

Sediyama

Arthur

et al. 2016

SCA

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High quality seeds are required for soybean production. This study evaluated the effect of gamma irradiation and storage time on seed quality in soybean lines VX04-6828 and VX04-5692. Seeds were gamma irradiated ( 60 Co) with 0, 50, 150, and 250 Gy. After the first seed production cycle (M1), the harvested seeds were stored in the laboratory for 0, 2, 4, and 6 months. Moisture content, seed quality (germination rate, dead seeds, and normal and abnormal seedlings), and seed vigor (first germination count, germination index, and seedling length) were determined. Data were submitted to analysis of variance for each soybean line using a 4 x 4 factorial design (four storage times x four gamma irradiation doses). Response surfaces were constructed based on the F test significance (p ≤ 0.05). VX04-5692 seeds were more sensitive to gamma radiation than were VX04-6828 seeds. Soybean seed quality was highest in M2 seeds derived from seeds irradiated with less than 100 Gy and stored for up to two months. High gamma irradiation doses and long storage times reduced soybean seed quality. Key words: Germination. Glycine max. Gamma radiation. Vigor. ResumoSementes de elevada qualidade fisiológica são necessárias à produção e à comercialização da soja. Portanto, avaliaram-se os efeitos da radiação gama e do armazenamento na qualidade fisiológica de sementes das linhagens de soja VX04-6828 e VX04-5692. As sementes dessas linhagens foram irradiadas com 0, 50, 150 e 250 Gy de radiação gama ( 60 Co). Após o primeiro ciclo de produção (M1), as sementes foram armazenadas em condições laboratoriais e avaliadas aos 0, 2, 4 e 6 meses, quanto ao teor de água das sementes e à qualidade fisiológica, por meio dos testes de germinação (plântulas normais, anormais e sementes mortas) e de vigor (primeira contagem de germinação, índice de velocidade de germinação e comprimento das plântulas). Os resultados foram submetidos à análise de variância para cada linhagem, utilizando-se o modelo fatorial 4 x 4 (quatro tempos de armazenamento x quatro doses de radiação gama). Com base no teste F (p < 0,05), foi realizado o ajuste de superfícies de resposta. As sementes da linhagem VX04-5692 são mais sensíveis à radiação gama que da linhagem Vx04-6828. Melhor qualidade fisiológica das sementes M2 de soja é expressa em doses inferiores a 100 Gy e armazenadas até 2 meses. Doses elevadas de radiação gama e longo período de armazenamento reduzem a qualidade fisiológica das sementes de soja. Palavras-chave: Germinação. Glycine max. Radiação gama. Vigor.

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Section: Resultsmentioning

confidence: 99%

“…Gamma radiation ( 60 Co) reduced seed germination and vigor and increased ROS production in maize seeds irradiated with doses higher than 0.1 kGy (MARCU et al, 2013). Free radicals readily react with almost all structural and functional organic molecules, causing metabolic disorders at the cellular level.…”

Section: Resultsmentioning

confidence: 99%

High gamma irradiation doses and long storage times reduce soybean seed quality

Nobre

Sediyama

Arthur

et al. 2016

SCA

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“…Maize (Zea mays L.) dry seeds exposed to gamma doses ranging from 0.1 to 1 kGy exhibited similar biochemical differences based on photosynthetic pigment (Chl a, Chl b, Car) content displaying an inversely proportional relationship to exposure doses. Furthermore, the concentration of Chl a was higher than Chl b in both irradiated and non-irradiated seedlings (Marcu et al, 2013a). Similarly lettuce (Lactuca sativa var.…”

Section: Resultsmentioning

confidence: 94%

Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik

Jan

Parween²,

Hameed

et al. 2013

Chilean J. Agric. Res.

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To determine the effects of gamma radiation on the photosynthetic pigments, sugar content and total carbon gain, seeds of Cullen corylifolium (L.) Medik. were irradiated with variable doses (0, 2.5, 5, 10, 15, and 20 kGy) at the rate of 1.65 kGy h -1 from 60 Co gamma source. Cullen corylifolium represents an important Chinese medicine with adequate levels of secondary metabolites, thus we hypothesized that gamma irradiation could modulate primary metabolites which could supplement secondary metabolite levels. The seeds were then transferred to field for biochemical analysis at different developmental stages; pre-flowering, flowering and post-flowering. Gamma dosage at 10 kGy resulted in a significant increase in concentration of chlorophyll a (61.17%), chlorophyll b (93.18%) and total chlorophyll (71.66%), suggesting that low doses of radiation could activate photosynthetic pigment system while at 15 and 20 kGy dose resulted in depletion of such parameters. Sugar and total C analysis of plants irradiated at 10 kGy demonstrated significantly maximum (216.01%) sugar content in leaves at all developmental stages and significantly minimum (46.13%) and (57.81%) in plants raised from seeds irradiated at 15 and 20 kGy respectively. Effective stimulatory dose for C. corylifolium '11062' is 10 kGy. In contrast, the carotenoid content of the plants exposed to 15 and 20 kGy was maximum than control. Significance of such stimulation correlated with increasing C mass of the plant concerned is discussed in the light of newer aspects in research.

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“…Maize (Zea mays L.) is one of the most important cereal crops in the world therefore its cultivation is economically important and also due to its agricultural importance many fundamental researches have been conducted in a century on this plant (Marcu et al, 2013). According to Khan et al (2008) seed priming is a pre-sowing strategy to improve germination and seedling establishment through priority of metabolic activities before emergence of radicle that often leads to more moisture, nutrients, and sunlight absorption and ultimately lead to increased yield.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Physical Priming of Seed on Traits and Yield of Corn (Zea Mays L.) Under Water Deficit Conditions in Iran

Siyami¹

2018

Appl. Ecol. Env. Res.

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Siyami et al. : The effect of physical priming of seed on traits and yield of corn (Zea mays L.) under water deficit conditions in Abstract. In order to study the effect of physical priming of seed on traits and yield of corn under water deficit conditions, a two years experiment was conducted during 2014-2015 as a split plot with three replications in Iran. The main factor includes two levels of irrigation (70 and 110 mm evaporation from pan class A as control and water deficit, respectively) after 8-9 leaves stage of corn and sub-factor includes corn seed treatment with gamma and beta rays, laser wave, magnetic field and ultrasonic waves, all in time intervals of 5 and 10 min. along with a non-primed control. Results indicated that maize seed priming under magnetic field of 5 and 10 min. and gamma and laser rays for 5 min. in normal irrigation regime were the best treatments with 20%, 18%, 16% and 13% increase value, respectively, while seed priming with gamma and laser rays for 10 min. under water deficit condition had the lowest grain yield.To increase corn grain yield in both normal and water deficit conditions, seed priming with the magnetic field in both time intervals, gamma and laser rays only in a short time is recommended.

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Gamma radiation effects on seed germination, growth and pigment content, and ESR study of induced free radicals in maize (Zea mays)

Cited by 170 publications

References 17 publications

High gamma irradiation doses and long storage times reduce soybean seed quality

High gamma irradiation doses and long storage times reduce soybean seed quality

Effects of presowing gamma irradiation on the photosynthetic pigments, sugar content and carbon gain of Cullen corylifolium (L.) Medik

The Effect of Physical Priming of Seed on Traits and Yield of Corn (Zea Mays L.) Under Water Deficit Conditions in Iran

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