Radiosensitivity of Some Local Cultivars of Wheat (Triticum Aestivum L.) to Gamma Irradiation

Albokari, M. M.; Alzahrani, Saad M.; Alsalman, AS

doi:10.3329/bjb.v41i1.11075

Cited by 19 publications

(15 citation statements)

References 6 publications

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“…This showed that irradiation alone has been useful to enhance the variability compared to hybridization or combination of hybridization and mutation. The increased range of variation in M 2 population for important economic characters was in accordance with the earlier reports [15,21]. However, the difference between PCV and GCV values was more for the spike length in all seven segregating populations reflecting on large environmental coefficient of variation (Table 3).…”

Section: Resultssupporting

confidence: 90%

“…In the present study germination was not much affected in chemical mutagen treated populations (Table 2). The inhibition of germination in M 1 was considered to indicate the degree of radio sensitivity of different genotypes and the extent of damage caused by mutagen [14][15]. In general, the results indicated that the γ -ray irradiations were more effective in inhibiting germination percentage than EMS treatments.…”

Section: Resultsmentioning

confidence: 99%

“…Mutagenesis of F 1 offered no greater advantage for some traits. The variability generated depended to a large extent on the parental genotype and traits under study than the method of generation of variability [15].…”

Section: Resultsmentioning

confidence: 99%

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The utility of chemical and radiation induced mutations in tetraploid wheat

Laxani¹,

Desai²,

Lohithaswa³

et al. 2013

Ind. Jrnl. Gen. Plnt. Bree.

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The present investigation was conducted with the main objective of studying the extent of genetic variability released through recombination, induced mutation and their combination for yield and its attributing traits in tetraploid wheat. The material consisted of segregating populations (F 2 , M 2 and F 2 M 2) developed from Triticum dicoccum wheat variety DDK1025 and T. durum wheat variety HD4502 after subjecting to EMS and γ γ γ γ γ-rays treatment. Among mutagen treated populations γ γ γ γ γ-rays induced more reduction in germination and survival percentage and mean plant height than EMS. Analysis of variance revealed highly significant differences among the populations for all the characters studied. An upper limit of range was more in M 2 compared to F 2 and F 2 M 2 populations for all the characters except for days to 50% flowering and number of productive tillers/ plant. In general, the γ γ γ γ γ-rays irradiated populations recorded highest PCV and GCV for all the characters except for plant height, spike length and spikelets/spike indicating greater scope for selection and improvement of these characters in desired direction. Most of the characters exhibited high heritability except spike length in all segregating populations. In general, the number of favorable correlations and higher strength of positive correlations were appeared to be more in F 2 M 2 populations than both F 2 and M 2 populations. The number of potential genotypes varied considerably across the traits and the populations. The F 2 M 2 (γ γ γ γ γ) population showed higher number of potential progeny lines compared to F 2 , F 2 M 2 (EMS) and M 2 populations. This indicated greater possibility of generation of potential genotypes through irradiation in heterozygous condition than EMS.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

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The utility of chemical and radiation induced mutations in tetraploid wheat

Laxani¹,

Desai²,

Lohithaswa³

et al. 2013

Ind. Jrnl. Gen. Plnt. Bree.

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“…Somatic effects-In the M 1 generation, general reductions of germination, survival, length of seedlings height, length of seedlings root and fertility with the increment of the doses of gamma ray were observed. These somatic effects were reported in other crops with different treatments and mutagens (Ciftci et al, 2006;Albokari et al, 2012;Scaldaferro et al, 2013;Arisha et al, 2014).…”

Section: Resultssupporting

confidence: 70%

Development of advanced mutant lines of barley with higher mineral concentrations through radiation-induced mutagenesis in Perú

Gómez

Aldaba

Ibáñez

et al. 2017

Peruvian Journal of Agronomy

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In Peru it is very important to increase food quality and production in the rural areas where a high poverty and malnutrition problems are found. Mutation induction is used to improve well adapted cultivars, by upgrading one or two characteristics, while retaining all its original attributes. Hordeum vulgare mutant lines were developed from the cultivar UNALM 96, following irradiation at 200 and 300 Gray. Mutant lines were selected in the M 8 generation with higher agronomic performance and nutritive quality. They were adapted to the highlands with grain yield within the range of 5, 100 and 8,731 kg/ha, over the value of the parental material (4,246 kg/ha) and showed improved contents of P (131 mg/g dry weight-DW), Zn (66 mg/g DW), Mn (55 mg/g DW), Fe (57 mg/g DW) and Cu (63 µg/g DW).

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“…In contrast, Degani and Pickholtz (1980) could not find a correlation between nuclear volume and irradiation sensitivity. Furthermore, different wheat cultivars also vary in irradiation sensitivity (Albokari, Alzahrani, & Alsalman, 2012;Borzouei, Kafi, Khazaei, Naseriyan, & Majdabadi, 2010).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of energy conversion and growth of gamma irradiated embryos and young seedlings of Triticum monococcum L. cultivar Einkorn

Well¹,

Fossey

Booyse³

2018

Journal of Radiation Research and Applied Sciences

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The study was conducted to determine whether the efficiency of energy conversion into growth can be used as an indicator for the determination of the optimal gamma irradiation dosage for mutation breeding. To meet this objective, embryo growth, shoot growth, root growth, mobilization of food reserves, respiration and energy conversion were studied in gamma-irradiated wheat Triticum monococcum L. cultivar Einkorn kernels. Kernels were exposed to 50, 150, 250 and 350 Gy and germinated. Kernels were collected 12 h after onset of imbibition and then every 12 h until 168 h. Irradiated seed demonstrated retardation in all parameters, which increased as the gamma irradiation dosage increased. For the most, dosage and time, as well as dosage by time interaction were highly significant. Root growth appeared to be the most sensitive to gamma irradiation, followed by shoot growth, mobilization of food reserves and efficiency of energy conversion. Full recovery of the efficiency of energy conversion took place at 50 Gy, with an increase in inefficiency with an increase in dosage. The point where full recovery of efficiency of energy conversion into growth gives way to incomplete recovery (100 Gy) is in line with the suggested dosages for practical mutation breeding in Triticum monococcum L. by the FAO/IAEA and is therefore an ideal indicator for predicting the dosage that will be optimal for plant mutation breeding.

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Radiosensitivity of Some Local Cultivars of Wheat (Triticum Aestivum L.) to Gamma Irradiation

Cited by 19 publications

References 6 publications

The utility of chemical and radiation induced mutations in tetraploid wheat

The utility of chemical and radiation induced mutations in tetraploid wheat

Development of advanced mutant lines of barley with higher mineral concentrations through radiation-induced mutagenesis in Perú

Efficiency of energy conversion and growth of gamma irradiated embryos and young seedlings of Triticum monococcum L. cultivar Einkorn

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