Radiation induced changes in the cuticular hydrocarbons of the granary weevil and their relationships to desiccation and adult mortality: Annual progress report, February 15, 1986 to February 14, 1987
The effects of gamma-ray irradiation on granary weevil Sitophilus granarius was studied. Cesium-137 was investigated with regard to its effectiveness in insect disinfestation of grains. The cuticular hydrocarbons of treated and control weevils were analyzed by gas chromatography, mass spectrometry (Gc/Ms). The effects of different dose rates and Relative Humidity (RH) conditions on desiccation were studied by determining body weight and moisture loss. Observations on germination of irradiated wheat seeds were made as complementary to the above studies. The weevils of older age group were more sensitive to gamma radiation. With dose-rate exceeding .15 kGy the mortality is higher during 11 to 15 days after irradiation. While at lower dose-rates 0.01 kGy and 0.05 kGy lower age group insect tend to prolong and survive longer. Analysis of epicuticular hydrocarbons of adult Sitophilus granarius showed that hydrocarbons C/sub 25/ to C/sub 33/ were present in significant amount. The qualitative and quantitative analysis of irradiated and control weevils suggests that there was little qualitative but considerable quantitative differences between the hydrocarbon fraction (C/sub 25/ to C/sub 33/) in these two groups. 3 refs., 6 figs., 5 tabs.
- Research Organization:
- Selma Univ., AL (USA). Div. of Natural and Applied Sciences
- DOE Contract Number:
- FG02-86CH10288
- OSTI ID:
- 6695671
- Report Number(s):
- DOE/CH/10288-4; ON: DE87007590
- Country of Publication:
- United States
- Language:
- English
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Radiation-induced changes in the cuticular hydrocarbons of the granary weevil and their relationship to desiccation and adult mortality
Radiation induced changes in the cuticular hydrocarbons of the granary weevil and their relationships to desiccation and adult mortality: Quarterly report, February 15, 1988-May 15, 1988
Related Subjects
553003 -- Agriculture & Food Technology-- Pest & Disease Control-- (1987-)
553004* -- Agriculture & Food Technology-- Food Protection & Preservation-- (1987-)
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
AGE DEPENDENCE
ALKALI METAL ISOTOPES
ANIMALS
ARTHROPODS
BEETLES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
CEREALS
CESIUM 137
CESIUM ISOTOPES
CHROMATOGRAPHY
COLEOPTERA
DISINFESTATION
ELECTROMAGNETIC RADIATION
GAMMA RADIATION
GAS CHROMATOGRAPHY
GRAIN DISINFESTATION
GRASS
HYDROCARBONS
INSECTS
INVERTEBRATES
IONIZING RADIATIONS
IRRADIATION
ISOTOPES
MASS SPECTROSCOPY
MORTALITY
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PLANTS
RADIATION EFFECTS
RADIATIONS
RADIODISINFESTATION
RADIOISOTOPES
SEPARATION PROCESSES
SPECTROSCOPY
WASTE PRODUCT UTILIZATION
WHEAT
YEARS LIVING RADIOISOTOPES