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: Volatility of the diglycolamine salt of dicamba
  name:
    name part: Sciumbato, Audy Shane
    name part: 1973-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1999
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    form: remote
    extent: ix, 178 leaves : illustrations ; 28 cm.
  abstract: Laboratory, the Texas A&M University campus and the Texas A&M Riverside campus near College Station, TX. Rate-response and herbicide volatility data were collected using cotton (Gossypium hirsutum L.) and soybean (Glycine max (L.) Merr.) as test plants. Plants were sprayed with nine reduced rates of the diglycolamine salt of dicamba, the dimethylamine salt of 2,4-D or the butoxyethyl ester of triclopyr so that plant responses could be determined for rate-response curves. Herbicide rates ranged from 4x10⁻¹ to 1x10⁻⁵ times the normal use rates. Injury was recorded at 1,5,9 and 14 DAT using a categorical injury rating scale. Herbicide volatility data was then obtained in the greenhouse using volatility chambers that exposed cotton and soybean plants to herbicide vapor originating from treated bermudagrass (Cynodon dactylus (L.) Pers.) sod placed upwind from the plants. The bermudagrass had been previously treated with 1. 12 kg ha⁻¹ of dicamba, 1.06 kg ha⁻¹ of 2,4-D or 2.24 kg ka⁻¹ of triclopyr. These herbicide rates were 2 times the recommended field use rates. The field volatility study was performed by placing cotton and soybean plants onto 15x15 m plots previously treated with 2X rates of dicamba, 2,4-D or triclopyr, Plants were exposed to herbicide volatility for 48 h in both the field and greenhouse. All plants were evaluated at l, 5, 9 and 14 DAT using the same injury rating scale used for the rate-response experiments. Field and greenhouse volatility data were then compared to field and greenhouse rate-response curves so that herbicide rates corresponding with observed injury could be calculated for the three herbicides. Using this method, herbicide volatility rates estimated from greenhouse cotton at 14 DAT were 2.7x10⁻³, 9.5x10⁻⁴ and 4.9x10⁻² times the normal rates of 2 4-D dicamba and triclopyr, respectively. Greenhouse soybean at 14 DAT indicated volatility rates of 1.8x10⁻², 7.9x10⁻⁴ and 2.5x10⁻² times the normal rates of 2,4-D dicamba and triclopyr. In add…
  note: by Audy Shane Sciumbato.
  note: "Major subject: Agronomy".
  note: Vita.
  note: Also available online.
  note: Issued also on microfiche from Lange Micrographics.
  note: M.S. Texas A&M University 1999.
  note: Includes bibliographical references (leaves 79-80).
  subject:
    topic: Major agronomy
  identifier: https://hdl.handle.net/1969.1/ETD-TAMU-1999-THESIS-S40
  related item:
    location:
      url: https://hdl.handle.net/1969.1/ETD-TAMU-1999-THESIS-S40
  record info:
    record content source: TXA
    record creation date: 000201
    record change date: 20220103134548.0
    record identifier: in00001519707