Comparison of Effects of X-Rays and Thermal Neutrons on Dormant Seeds of Barley, Maize, Mustard, and Safflower.
نویسندگان
چکیده
منابع مشابه
Cytogenetic Effects of X-Rays and Thermal Neutrons on Dormant Tomato Seeds.
HE study reported in this paper concerns the effects of X-rays and thermal neuT trons on dormant seeds of the tomato, Lycopersicon esculentum, expressed as chromosomal abnormalities in root tip mitoses, seedling injury, and chlorophyll and morphological changes. XI and NI refer to the X-rayand thermal neutron-irradiated generations, respectively; Xz and Nz to the progenies of the XI and NI gene...
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pattern by making it difficult to delimit sectors clearly. Although the data at hand precluded the possibility of making rigorous comparisons between plants arising from seed subjected to thermal neutrons and plants from x-irradiated seed, no developmental or morphological disturbances or lethality patterns in Datura unique to either kind of treatment were detected. Caldecott, Frolik, and Morri...
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Biological effects of ionizing radiations produced by an explosion of a nuclear device may be complicated by the heterogeneity and extreme intensity of the emissions. Changes in biological systems may be induced that are not attributable to blast, heat, or single-type radiation effects. Many data and discussions have resulted from laboratory studies of radiations, but until recently scant infor...
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Seed dormancy is one of the adaptive responses in the plant life cycle and an important agronomic trait. Reactive oxygen species (ROS) release seed dormancy and promote seed germination in several cereal crops; however, the key regulatory mechanism of ROS-mediated seed dormancy and germination remains controversial. Here, we focused on the relationship between hydrogen peroxide (a ROS) and absc...
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ABSTRACT Background: With respect to the difference in the interaction of thermal neutron and X rays with matter, using two radiography systems of thermal neutron and X rays will yield highly valuable information for studying the inner structure of biologic samples. Methods: The high sensitivity of thermal neutron to hydrogen, in particular, has led to recognizing this system as a useful tool ...
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ورودعنوان ژورنال:
- Genetics
دوره 43 4 شماره
صفحات -
تاریخ انتشار 1958