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פותח על ידי קלירמאש פתרונות בע"מ -
Induced tolerance of Sitophilus oryzae adults to carbon dioxide
Year:
1985
Authors :
דונהאי, עזרא יונתן
;
.
דיאס, רפי
;
.
נברו, שלמה
;
.
Volume :
21
Co-Authors:
Facilitators :
From page:
207
To page:
213
(
Total pages:
7
)
Abstract:
Sitophilus oryzae adults were exposed to 40% carbon dioxide (CO2) in air for seven successive generations and to 75% CO2 in air for ten successive generations at 26°C and 100% relative humidity (r.h.). The tolerance factor (LT95 selected generation/LT95 non-selected generation) at the 7th generation of insects exposed to 40% CO2 was 2.15 and at the 10th generation exposed to 75% CO2, was 3.34. Reduction of the r.h. to 60% in the 75% CO2 atmosphere caused shortening of exposure times required to obtain the same mortality values, but the tolerance factors remained stable. Removal of selection pressure for five generations of the 40% CO2 and four generations of the 75% CO2 selected strains caused significant reduction in tolerance. Augmentation of oxygen concentration to 21% in atmospheres containing 40 and 75% CO2 did not markedly alter the tolerance factors from those obtained with atmospheres containing the same CO2 concentrations in air. © 1985.
Note:
Related Files :
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More details
DOI :
10.1016/0022-474X(85)90017-7
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
18602
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:22
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Scientific Publication
Induced tolerance of Sitophilus oryzae adults to carbon dioxide
21
Induced tolerance of Sitophilus oryzae adults to carbon dioxide
Sitophilus oryzae adults were exposed to 40% carbon dioxide (CO2) in air for seven successive generations and to 75% CO2 in air for ten successive generations at 26°C and 100% relative humidity (r.h.). The tolerance factor (LT95 selected generation/LT95 non-selected generation) at the 7th generation of insects exposed to 40% CO2 was 2.15 and at the 10th generation exposed to 75% CO2, was 3.34. Reduction of the r.h. to 60% in the 75% CO2 atmosphere caused shortening of exposure times required to obtain the same mortality values, but the tolerance factors remained stable. Removal of selection pressure for five generations of the 40% CO2 and four generations of the 75% CO2 selected strains caused significant reduction in tolerance. Augmentation of oxygen concentration to 21% in atmospheres containing 40 and 75% CO2 did not markedly alter the tolerance factors from those obtained with atmospheres containing the same CO2 concentrations in air. © 1985.
Scientific Publication
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