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: Some physiological effects of high sodium, calcium and chloride concentrations on cotton
  name:
    name part: Calahan, John Shelby.
    role:
      role term: creator
  name:
    name part: Anderson, Warren B.
    role:
      role term: degree committee member.
  name:
    name part: Benedict, C. R.
    role:
      role term: degree committee member.
  name:
    name part: Dieckert, J. W.
    role:
      role term: degree committee member.
  name:
    name part: Joham, Howard E.
    role:
      role term: degree supervisor.
  name:
    name part: Powell, Robert 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: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: txu
    date issued: 1977
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xvii, 103 leaves : illustrations ; 28 cm
  abstract: This investigation was conducted to determine the effect of substrate concentrations of NaCl and/or CaCl₂ on cotton (Gossypium hirsutum L. Deltapine 16) growth, yield and tissue ionic balance. An attempt was made to study a possible Ca-Na interaction on the physiological and growth effects of salinity. A considerable amount of seemingly conflicting and confusing data exist on the detrimental effect of salinity growth, yield and ionic balance in several crops. Little data is available on the effect of Ca in offsetting detrimental effects of high substrate Na levels. Cotton plants were grown in the greenhouse in sand and irrigated with modified Hoagland's solution salinized with NaCl at 0, 10 and 100 me/l in combination with CaCl₂ at 1, 10, 20 and 100 me/l. Dry weight of the plant tissues and plant height were determined at two harvest dates (50 and 90 days) and used as indicators of salinity effects on growth and yield. Tissue ion levels were determined by flame spectroscopy (Na, K), atomic absorption spectroscopy (Ca, Mg) and specific ion electrodes (Cl NO₃). A nitrogen analyzer was used to determine total N levels of leaf tissue. In general, each increase in substrate NaCl concentration caused decreased growth and yield. The addition of only CaCl₂ to the substrate solution caised an effect on growth and yield only at the 100 me/l concentration in which a decrease in both parameters was observed due to the high salt level..
  note: by John Shelby Calahan, Jr.
  note: "Major subject: Plant Physiology."
  note: Vita.
  note: Texas A & M University
  note: Includes bibliographical references (leaves 97-102).
  subject:
    topic: Cotton
  subject:
    topic: Saline irrigation
  subject:
    topic: Soils, Salts in
  subject:
    topic: Plant Physiology
  subject:
    topic: Cotton
  subject:
    topic: Saline irrigation
  subject:
    topic: Soils, Salts in
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-357103
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-357103
  record info:
    record content source: TXA
    record creation date: 770915
    record change date: 20220103135449.0
    record identifier: in00000333130
    language of cataloging:
      language term: eng