지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The work on the "Studies of radiosensitivity" in Korea has been initiated since 1959 by the author at various institutions in home and foreign countries, and more than 20000 of plant materials in 73 varieties and 41 kinds are treated under varied conditions for the studies of radiosensitivity in plants. However, a study of the susceptibility to radiation in insect pests as well as their biological effects has not been previously reported in this country.
During the year of 1964 and 1965, near 50000 of insects at the stages of adultㆍeggㆍlarva and pupa in 14 different kinds are irradiated under acute X and gamma rays to investigate the behavior of growth and lethality after irradiation, and their general tolerances to radiations are compared by the kind of insects, stage of growth, radiation sources and exposured dosages.
Through the experiments, it is shown that the lethality in most of insects are high as several kilo roentgens above and no significant effects on pupation, emergence, and oviposition in the treated generation at the dose of 3 Kr. below, but in the following generation, the rice stem borer, for instance, no oviposition or decreased laying is observed from the dosages at 3 Kr. to 1 Kr., and the hatching was possible from 1.5 Kr, below of irradiated larvae although laying and hatching are seemed in normal.
In general, the lethal dose 50% of tested insect materials at the larval stage can be classified some what 60~80 Kr. for Pine caterpillar, Fall webworm, Camphor silk moth and their relatives, at 40~60 Kr. for Gypsy moth. Monhey prominent and some relatives and at 20~20 Kr, for House fly, Rice weevil, Pine sawfly etc. Plant parasitic nematodes such as Hirechmannia and Paratylenchus shown very high resistance to radiation and the LD-50 is observed from 100 Kr. or above. A concept to evaluate the radiosensitivity in insects by taxological family line as a practical measure is not answerable yet, but it can be solved within the near future through the continuing experiments.
During the year of 1964 and 1965, near 50000 of insects at the stages of adultㆍeggㆍlarva and pupa in 14 different kinds are irradiated under acute X and gamma rays to investigate the behavior of growth and lethality after irradiation, and their general tolerances to radiations are compared by the kind of insects, stage of growth, radiation sources and exposured dosages.
Through the experiments, it is shown that the lethality in most of insects are high as several kilo roentgens above and no significant effects on pupation, emergence, and oviposition in the treated generation at the dose of 3 Kr. below, but in the following generation, the rice stem borer, for instance, no oviposition or decreased laying is observed from the dosages at 3 Kr. to 1 Kr., and the hatching was possible from 1.5 Kr, below of irradiated larvae although laying and hatching are seemed in normal.
In general, the lethal dose 50% of tested insect materials at the larval stage can be classified some what 60~80 Kr. for Pine caterpillar, Fall webworm, Camphor silk moth and their relatives, at 40~60 Kr. for Gypsy moth. Monhey prominent and some relatives and at 20~20 Kr, for House fly, Rice weevil, Pine sawfly etc. Plant parasitic nematodes such as Hirechmannia and Paratylenchus shown very high resistance to radiation and the LD-50 is observed from 100 Kr. or above. A concept to evaluate the radiosensitivity in insects by taxological family line as a practical measure is not answerable yet, but it can be solved within the near future through the continuing experiments.
목차
SUMMARY
Ⅰ. 緖言
Ⅱ. 材料 및 方法
Ⅲ. 試驗成績
Ⅳ. 摘要 및 考察
Ⅴ. 引用文獻
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UCI(KEPA) : I410-ECN-0101-2009-481-017557477