Genotypic variation in utilization of different host rices and in response to Bacillus thuringiensis complex endotoxins by the striped stem borer, Chilo suppressalis walker (Lepidoptera : Pyralidae)

Date

4-1993

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Cesar G. Demayo

Abstract

Genotypic variation in life history, utilization of different species of rice, and growth on simulated B.t.-engineered rice was investigated in a local population of ado suppressalis Walker. Results show the existence of variation within the species as shown by the differences in response of the genotypes in the population. This variability within the population could threaten the stability of resistance in rice developed either through conventional breeding or by genetic engineering. The introduction of Bd. genes in rice to confer resistance is not exempted from this problem. Proper deployment strategies to prolong usefulness of resistance factors for pest control are discussed.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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