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Effects of EDU and Ozoban on the growth of shortleaf pine seedlings in the field

Flagler, R.B. ; Lock, J.E.

Bulletin of the Ecological Society of America; (United States), 1994, Vol.75:2

United States

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  • Título:
    Effects of EDU and Ozoban on the growth of shortleaf pine seedlings in the field
  • Autor: Flagler, R.B. ; Lock, J.E.
  • Materias: BIOLOGICAL EFFECTS ; CONIFERS ; EXPOSURE CHAMBERS ; FIELD TESTS ; GROWTH ; OZONE ; PINES ; PINOPHYTA ; PLANT GROWTH ; PLANTS ; RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT ; RESPONSE MODIFYING FACTORS ; TESTING ; TREES 560300 -- Chemicals Metabolism & Toxicology
  • Es parte de: Bulletin of the Ecological Society of America; (United States), 1994, Vol.75:2
  • Notas: CONF-940894--
    None
  • Descripción: Two field studies were conducted to determine the response of shortleaf pine seedlings planted in the field to ethylenediurea (EDU) and sodium erythorbate (Ozoban), both of which possess antioxidant properties, and were developed to protect plants from ozone (O[sub 3]). Seedlings originated from two half-sib families of shortleaf pine, S2PE3 and S3PE9, and a third [open quotes]woods-run[close quotes] selection. For the EDU study, the chemical treatment levels were 0 and 300 ppm EDU. For the Ozoban study, the chemical treatment levels were 0, 515, 1030, 1545, and 2060 ppm Ozoban. Seedlings were sprayed monthly with the appropriate concentration of antioxidant chemical for two years. EDU increased leaf area and foliage, stem and root biomass for all three selections; the response of the woods-run selection was the greatest. Height growth was increased by EDU only in the woods-run selection. Diameter growth was not affected by EDU. In the Ozoban study, only family S2PE3 exhibited a biomass response to Ozobon, with increased biomass as Ozoban application rate increased up to the highest rat, at which point there was a small decrease. Height growth was not affected by Ozoban. Diameter growth of the woods-run selection increased as Ozoban applications rate increased, with a slight decrease at the highest application rate. Diameter of the other selections was not affected by Ozoban. Both chemicals appeared to provide some protection to shortleaf pine against ambient O[sub 3].
  • Editor: United States
  • Idioma: Inglés
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