rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Diapause and developmental differences in various geographical populations of the pink bollworm, Pectinophora gossypiella, (Saunders)
  name:
    name part: Barry, Billy Dean.
    role:
      role term: creator
  name:
    name part: Adkisson, Perry L.
    role:
      role term: degree supervisor.
  name:
    name part: Cartwright, T. C.
    role:
      role term: degree committee member.
  name:
    name part: Hanna, R. L.
    role:
      role term: degree committee member.
  name:
    name part: Price, Manning A.
    role:
      role term: degree committee member.
  name:
    name part: Smith, James D.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: theses
  genre: Academic theses.
  origin info:
    place:
      place term: txu
    date issued: 1965
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: 90 leaves
  abstract: Studies in the laboratory and insectary showed at least two strains of pink bollworm, Pectinophora gossypiella (Sänders) exist north of the equator in the cotton growing areas of the Western Hemisphere, when measured in terms of diapause. Nondiapause was revealed to be a multigenic character, which was not sex-linked. Families of insects were obtained that averted diapause even when reared under strong diapause inducing stimuli. Photoperiod proved to be the primary stimulus for diapause induction or prevention (nondiapause). Life history records established the average duration of the life stages to be; 4.8, 16.4, 9.2 and 17.5 days for egg, larva, pupa and adult respectively when reared at 26.7°C and 9.8, 51.7, 24.4 and 37.days respectively when reared at 18.3°C. There were no significant difference among overall egg to egg life cycles of the various populations studied.
  note: Ph. D. in Entomology Texas A & M University
  subject:
    topic: Major entomology
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-174608
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-174608
  record info:
    record content source: TXA
    record creation date: 791120
    record change date: 20220103135056.0
    record identifier: in00000152470
    language of cataloging:
      language term: eng