X-ray induced mutation tn barley.
نویسندگان
چکیده
منابع مشابه
Sterility, chromosome breakage, x-ray induced mutation rates and detected mutation frequencies in Drosophila melanogaster.
AMONG the enduring problems of radiation genetics is the quantitative evaluation of mutational damage elicited in germ cells that have been exposed to a given dose of radiation. The significant question at issue is what proportion of all irradiated germ cells actually suffer an induced mutation, i.e., what is the mutation rate? This is the question that must be accurately answered before the co...
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Black particles, collected by filtration (1.2~pm pore size) from the anoxic waters of a soft-water lake, were examined by a scanning proton microprobe which permitted quantitative elemental analysis by proton-induced X-ray emission (PIXE) and Rutherford backscattering (RBS). There was a uniform distribution of sulfur across the filter, but Fe, and to a lesser extent, Mn, was localized in -5-pm-...
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the results of researches in the field of the using x-ray in all over the world have been successful. the main subject which needs more investigation and have been allocated part of the researches in most of the atomic research institutes, is the research about possible harms of irradiated food for human beings, base on the researches, using irradiation for inhibition of sprouting and preservat...
متن کاملThe X-Ray Induced Mutation Rate in Pollen in Relation to Dosage and the Nuclear Cycle.
H E haploid cycle of plants offers some distinct advantages to genetic T analysis. Here inheritance is not complicated by dominance relationships, and segregations are much less involved than in disomic inheritance. The greatly simplified problem of rearing large populations and the opportunities in some instances of tetrad analysis are other of the many well known reasons why new inherited cha...
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Background: Proton induced X-ray emission (PIXE) has been applied as reliable and improved techniques in this study to compare concentration of various trace elements in normal and abnormal varicose veins. Materials and Methods: Five samples from normal veins and 13 samples from varicose veins bombarded by 2.0 MeV energy proton beams produced by a Van de Graff accelerator in vacuum. T...
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ژورنال
عنوان ژورنال: Japanese Journal of Breeding
سال: 1952
ISSN: 0536-3683,2185-291X
DOI: 10.1270/jsbbs1951.1.210