Induced Mutability Studies in Three Wheat (Triticum aestivum L.) Varieties for Some Morphological and Agronomic Characteristics

Din, Rahm; Khan, Muhammad Mohibullah; Qasim, Muhammad; Jehan, Sheh; Khan, Malik Muhammad

doi:10.3923/ajps.2003.1179.1182

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…Germination percentage was significantly delayed by higher doses of gamma radiation. Due to inhibitory effect of gamma rays on seed dormancy causes delay in seed germination .Similar results were also reported in many plant by Ahmad and Qureshi (1992) and Din et al (2003) in Zea mays and Triticum aestivum L. Statistically maximum germination percentage was recorded at lowest dose of gamma irradiation as compare to control. Stimulatory effects of lower doses to seed germination has been reported in majority of other plant such as chickpea (Melki & Sallami, 2008) and soybeans (Mudibu et al, 2011) Survivability percentage was adversely affected at the higher doses of gamma radiation This, reduction caused due to the damage in plant tissue and breakdown of meristimatic cells (Mudibu et al, 2011).…”

Section: Morphological Analysissupporting

confidence: 86%

Mutagenic potential of Gamma rays on Somatic cell division and morphological parameters in Foeniculum vulgare Mill.

Mishra

Kumar

2021

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Mutagenesis involving ionizing radiation has been widely used for alteration in genetic constituents to increase the variability at gene level in a very small fraction of time. But, attempts to induce genetic variability in fennel for agronomically important trait are very limited. Narrow genetic base is the main hindrance in handling the conventional breeding in Fennel . Thus, main idea of this study is to generate genetic variability in Ajmer fennel-2 variety of Foeniculum vulgare Mill. by using the most potent physical mutagen i.e. gamma rays. The seeds were exposed to different doses of gamma rays viz. 5, 10, 15, 20 and 25Kr, respectively, along with control to analyze the effect of gamma rays on meristematic root tips. Germination and survival percentage were significantly affected in response to ionizing potential of gamma rays and a dose dependent decline was observed in both the parameters. Plant height, shoots, root length and days of flowering were also affected by gamma rays and a considerable increment was achieved at lowest dose with respect to control. As the dose of gamma ray increases, the rate of Active Mitotic Index declines. The irradiated seeds show numerous chromosomal variations such as; scattering, stickiness, bridge formation etc which are computed in the form of Total Abnormality Percentage.

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Section: Morphological Analysissupporting

confidence: 86%

Mutagenic potential of Gamma rays on Somatic cell division and morphological parameters in Foeniculum vulgare Mill.

Mishra

Kumar

2021

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“…Double spikes in association with sterility were also observed by Gill and Sethi [102] in one variety of Triticum aestivum L. at 500 Gy, by Larik [112] Triticum aestivum L. at 250 Gy, and by Din and Khan [113] in three wheat (Triticum aestivum L.) varieties at 350 Gy gamma irradiation treatment.…”

Section: Table 2 P Values Of Pairwise Comparisons Of Gamma Irradiatio...supporting

confidence: 58%

Gamma Irradiation as Tool for Mutation Breeding in Wheat

Well¹,

Booyse²,

Fossey³

2023

Wheat [Working Title]

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Mutation breeding is used to modify a specific character of a plant, while all other characteristics remain the same. Adaptation obtained through mutation breeding to biotic (disease and insect pest resistance) and abiotic (aluminum toxicity, drought, high temperature, salt tolerance) stresses leads to better harvest growth, yield and quality. The main aim is to promote the efficiency of energy conversion into growth as a tool for the prediction of the optimal gamma irradiation dosage for mutation breeding in wheat. Cytogenetic analysis done on Triticum turgidum ssp. durum cv. Orania will be presented in the form of nucleolar activity to determine incomplete mitosis as well as in the form of bridges, fragments, micronuclei and ring chromosomes that will be compared with the efficiency of energy conversion into growth. Studies done on two Triticum aestivum cultivars, namely Ratel and Kwartel, included observation of double spikes, reduction in fertility and determination of the window for the optimal dosage for mutation breeding. Cultivars/breeding lines that are more resistant to gamma irradiation have a wider window for the optimal dosage range for mutation breeding. The ideal gamma irradiation dosage range for the three cultivars, namely, Orania, Ratel and Kwartel were determined.

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Metabolic and biochemical changes caused by gamma irradiation in plants

Ahuja

Kumar

et al. 2014

J Radioanal Nucl Chem

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Induced Mutability Studies in Three Wheat (Triticum aestivum L.) Varieties for Some Morphological and Agronomic Characteristics

Cited by 6 publications

References 1 publication

Mutagenic potential of Gamma rays on Somatic cell division and morphological parameters in Foeniculum vulgare Mill.

Mutagenic potential of Gamma rays on Somatic cell division and morphological parameters in Foeniculum vulgare Mill.

Gamma Irradiation as Tool for Mutation Breeding in Wheat

Metabolic and biochemical changes caused by gamma irradiation in plants

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