Assessing resistance and variability of the striped stem borer, Chilo suppressalis in response to CryIAc delta- endotoxin and azadirachtin.
Date
4-1994
Degree
Bachelor of Science in Biology
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Cesar G. Demayo
Abstract
Effect of Choice and No choice conditions on SSB response to toxin gene products B.t. delta-endotoxin and zadirachtin was determined by Diet-recognition bioassay. CrylAc delta-endotoxin was characterized non repellent while Azadirachtin was repellent against neonate and older SSB larvae. A model was devised to demonstrate possible combined screening effects of the treatments. Resistance was evaluated by Consumption Test and found to exist in test populations up to 38%. Variability response of SSB to the toxin gene products was high (0-100). These findings support the proposed "Choice Deployment Scheme" for B.t.-engineered rice crops.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Balce, Dulcinea A., "Assessing resistance and variability of the striped stem borer, Chilo suppressalis in response to CryIAc delta- endotoxin and azadirachtin." (1994). Undergraduate Theses. 10771.
https://www.ukdr.uplb.edu.ph/etd-undergrad/10771
Document Type
Thesis