Radiation effect on germination and seedling traits in rice (<i>Oryza sativa</i> L.)

Lalitha, R.; Arunachalam, P.; Mothilal, A.; Senthil, N.; Hemalatha, G.; Vanniarajan, C.; Souframanien, J.

doi:10.5958/0975-928x.2019.00133.9

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…X-rays and electron irradiation in the current studies showed higher effectiveness due to very high dose rate and pulsed dose delivery compared to low dose rate and continuous dose delivery in case of gamma rays. Higher values of GR50 for gamma rays were also reported by (Lalitha et al 2019: andGowthami et al 2017) while comparing the gamma rays and electron beam in rice which shows similarities with the results…”

Section: Comparison Of Radio-sensitivity Of Short Grain Aromatic Rice Landraces Based On Lethal Dose 50 (Ld50)supporting

confidence: 85%

“…sensitivity of Samundchini and Vishnubhog for gamma rays, electron beam, X-ray and proton beam for LD50 estimated by Probit analysis findings were also reported by (Tosri et al 2019;Lalitha et al 2019;Gowthami et al 2017) while comparing radio-sensitivity of gamma rays and electron beam in rice.…”

Section: Fig 3 Graph Depicting the Comparative Study Of Radio-supporting

confidence: 76%

“…Different mutagens may have varied LD50 and GR50 doses based on the crop species, genotypes and material/ tissue used for treatment. Many scientists have attempted to determine the comparative effectiveness of various mutagen combinations for the induction of desirable traits in rice or other crops (Lavanya et al 2016;Rani et al 2016;Gawthami, et al 2017;Veni et al 2017;Mondal et al 2017;Lalitha et al 2019 andSushmitharaj et al 2019). However no previous study has reported to compare effectiveness and radio-sensitivity of four physical mutagens viz., gamma rays, X-rays, electron beam and proton beam on aromatic short grain rices.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of radio-sensitivity and relative biological effectiveness of gamma rays, x-rays, electron beam and proton beam in short grain aromatic rice

Sharma¹,

Sao²,

Sahu³

et al. 2020

IJGPB

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Knowledge about the type of mutagen used and its optimized dose are of paramount importance to design and implement any plant mutation breeding programme. Present study was first time carried out to evaluate the comparative effectiveness, radio-sensitivity behavior and relative biological effectiveness of four physical mutagens viz., gamma rays, X-rays, electron beam and proton beam on two short grain aromatic rice landraces viz., Samundchini and Vishnubhog. The seeds of these two varieties were treated with 15 different doses of all four mutagens, ranging from 50Gy to 750Gy with an interval of 50Gy. Germination percentage and seedling growth parameters were recorded at seven and 15 days after sowing, respectively in two replications. It was observed that germination percentage, shoot and root length of the seedling gradually declined with the increase in doses of all the physical mutagens. On the basis of these observations, LD50 and GR50 doses were calculated. The present study reports the optimum range of doses for gamma ray (280 to 350 Gy); electron beam (290 to 330Gy); X-ray (200 to 250 Gy) and proton beam (150 to 200Gy). GR50 doses were observed higher than LD50 doses for all the mutagens in both landraces. However, Samundchini showed higher LD50 and GR50 doses than Vishnubhog indicating later to be more radio-sensitive. Furthermore, both the genotypes were highly radio-sensitive for proton beam and least for gamma rays. Similarly, high relative biological effectiveness was observed for proton beam followed by X-ray, electron beam and gamma rays indicating their decreasing trend of penetration capacity and lethality. Results of present study will be useful for plant breeders to use the above mutagens in an appropriate dose for mutation breeding in rice.

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Section: Comparison Of Radio-sensitivity Of Short Grain Aromatic Rice Landraces Based On Lethal Dose 50 (Ld50)supporting

confidence: 85%

Section: Fig 3 Graph Depicting the Comparative Study Of Radio-supporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative study of radio-sensitivity and relative biological effectiveness of gamma rays, x-rays, electron beam and proton beam in short grain aromatic rice

Sharma¹,

Sao²,

Sahu³

et al. 2020

IJGPB

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show abstract

“…However, rice seeds treated with γ-irradiation in this study all had significantly higher panicle numbers and lower filled grain percentage than controls, especially after a dose of 250 Gy. These results may be due to the high doses of γ-irradiation causing pollen sterility 34 , 35 . In contrast, the rice seeds treated with the DCEB method all had extremely significantly lower values for rice seed viability, and the performance of the contemporary agronomic trait was essentially indistinguishable.…”

Section: Discussionmentioning

confidence: 99%

A new method for mutation inducing in rice by using DC electrophoresis bath and its mutagenic effects

Zou

Sun

Zou

et al. 2023

Sci Rep

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Mutation breeding is a significant means of increasing breeding efficiency and accelerating breeding process. In present study, we explored a new method for mutations inducing in rice (Oryza sativa L.) by using direct current electrophoresis bath (DCEB). The results showed that 20 mM NaCl solution is the optimal buffer, and the mortality of rice seeds followed an upward trend with increasing voltage and processing time of DCEB. By exploring the mutagenic effects of γ-irradiation and DCEB on seed vigor and physiological damages, we found that the physiological damages induced by DCEB on seed vigor were significant compared with that by γ-irradiation. We screened two mutants with low filled grain percentage and one mutant with abnormal hull from the M2 generations. These three mutants were confirmed to be authentic mutants based on 48 SSR markers followed by the protocol NY/T 1433–2014. Whole-genome resequencing detected a total of 503 and 537 polymorphisms in the two mutants, respectively, and the DCEB mutagenesis induced mainly InDel variants, while the exon region of mutant genes occupied a large proportion, especially the SNP variants, which occupied about 20% of the mutation sites in the exon region.

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“…Sejumlah bukti menunjukkan bahwa iradiasi benih dan bagian vegetatif tanaman dengan sinar gamma, dalam kisaran 1-20 Gy mempercepat proses pertumbuhan dan perkembangan (Katiyar et al, 2022). Peningkatan yang dimediasi sinar gamma dalam atribut seperti persentase perkecambahan, panjang tunas akar, jumlah malai, panjang malai, jumlah biji per malai, dan sifat fitokimia telah dijelaskan dalam Harding et al, (2012);Islam et al, (2014);Henny Puspita Sari, Irfan Suliansyah, Aswaldi Anwar, Indra Dwipa., Kajian: Pengembangan Varietas Unggul Baru Padi (Oryza sativa L.) Lokal melalui Iridasi Gamma Warman et al, (2015); Kadhimi et al, (2016);Gowthami et al, (2017); Tiwaria et al, (2018); Lalitha et al, (2019); Imam & Chakraborty, (2019); Kato et al, (2020);Andrew-Peter-Leon et al, (2021);Gowthami et al, (2021). Hasil penelitian Andrew-Peter- Leon et al, (2021), generasi M6 pada populasi mutan manghasilkan hari berbunga lebih cepat (11,81%), menurunkan tinggi tanaman hingga 40%, dan meningkatkan hasil per tanaman sebesar 45,73%.…”

Section: Respons Morfo-fisiologisunclassified

Kajian: Pengembangan Varietas Unggul Baru Padi (Oryza sativa L.) Lokal melalui Iridasi Gamma

Sari

Suliansyah²,

Anwar³

et al. 2023

JIUBJ

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The widespread use of mutagenesis for plant genetic improvement can be explained by a number of factors, including the fact that new varieties can be developed in a shorter time than conventional breeding methods and that transgenesis is more difficult to re-engineer. Gamma rays are physical mutagens that are often used in plant mutagenesis techniques and are safe for human health because there is no environmental risk in the induced generations. The method used in this paper is by grouping articles according to their relevance to the subject and year of research, and finally managing the explanatory structure. Journal articles for the period 2012 to 2022 were searched using keywords: breeding, mutation, mutagen, rice, and gamma iridation. The selection of selected articles comes from the PubMed, Elsevier, and Springer web sites. This paper integrates the available data on the effects of mutation breeding of plant varieties in different countries and addresses the potential of gamma irrigation as a flexible and practical approach that can be applied to rice crops and an appropriate selection method.

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Radiation effect on germination and seedling traits in rice (Oryza sativa L.)

Cited by 4 publications

References 3 publications

Comparative study of radio-sensitivity and relative biological effectiveness of gamma rays, x-rays, electron beam and proton beam in short grain aromatic rice

Comparative study of radio-sensitivity and relative biological effectiveness of gamma rays, x-rays, electron beam and proton beam in short grain aromatic rice

A new method for mutation inducing in rice by using DC electrophoresis bath and its mutagenic effects

Kajian: Pengembangan Varietas Unggul Baru Padi (Oryza sativa L.) Lokal melalui Iridasi Gamma

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