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: Growth and transpirational water use efficiency of pearl millet in response to water and phosphorus supply
  name:
    name part: Payne, William Albert
    name part: 1958-
    role:
      role term: creator
  name:
    name part: Hossner, Lloyd R.
    role:
      role term: degree supervisor.
  name:
    name part: Wendt, Charles W.
    role:
      role term: degree supervisor.
  name:
    name part: Drew, Malcolm
    role:
      role term: degree committee member.
  name:
    name part: Lascano, Robert
    role:
      role term: degree committee member.
  name:
    name part: Onken, Arthur
    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: xx
    date issued: 1990
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 133 leaves : illustrations ; 29 cm
  abstract: In the Sahel, pearl millet (Pennisetum americanum (L.) Schum) is cultivated on sandy soils low in water holding capacity and available nutrients, particularly phosphorus. Because rainfall tends to be low and erratic, soil management must be designed to use available water as efficiently as possible to improve food supply. Towards this end, the influence of soil water and phosphorus supply upon growth and transpirational water use efficiency (WUE(T)) of pearl millet was investigated. Studies reported include 1) a lysimeter/growth analysis experiment using four phosphorus and two water treatments, 2) determination of transpiration and WUE(T) under the conditions stated above, and 3) a growth chamber experiment in which gas exchange characteristics, WUE(T), and starch and chlorophyll contents were determined as a function of phosphorus application in non-water stressed millet plants. Results indicate 1) phosphorus supply strongly influences amount and distribution of millet biomass under water stressed and non-water stressed conditions; however, relative growth rate and net assimilation rate are relatively unaffected by water and phosphorus supply; 2) increasing phosphorus increases WUE(T) under both water stressed and non-water stressed conditions. Water stress also increases WUE(T), which is not constant over time; and 4) the ratio of photosynthesis to transpiration drops considerably during phosphorus stress, thus offering a physiological explanation for lowered WUE(T). Additionally, chlorophyll and starch content are increased. Results offer agronomic and physiological evidence that water conservation in the Sahel will be a relatively ineffective means of stabilizing and raising millet yields without first addressing soil fertility constraints.
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Soil science."
  note: Ph. D. Texas A & M University 1990
  note: Includes bibliographical references.
  subject:
    topic: Pearl millet
    topic: Growth
  subject:
    topic: Pearl millet
    topic: Water requirements
  subject:
    topic: Plants
    topic: Transpiration
  subject:
    topic: Pearl millet
    topic: Effect of phosphorus on
  subject:
    topic: Major soil science
  identifier: http://gateway.proquest.com/openurl
  identifier: http://proxy.library.tamu.edu/login
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    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://gateway.proquest.com/openurl
  record info:
    record content source: TXA
    record creation date: 910516
    record change date: 20200904152529.0
    record identifier: in00001008742
    language of cataloging:
      language term: eng