Nitrogen ion utilization by tulip poplar (Liriodendron tulipifera L. ) seedlings

Journal Article · Fri Jan 01 00:00:00 EST 1982 · J. Tenn. Acad. Sci.; (United States)

OSTI ID:7068052

Mann, L K

Growth responses of one-year-old tulip poplar seedlings were determined for different nitrogen sources (HN/sub 4/NO/sub 3/, NH+/sub 4/, NO-/sub 3/, no nitrogen) at 336 ppm N in nutrient culture. At the end of three months, there were no significant differences in growth observed among treatments in terms of stem elongation, leaf area, and leaf size. After four months, however, seedlings of the NH/sub 4/NO/sub 3/ treatment exhibited significantly (P<0.05) greater growth (final weight gain and stem elongation) than all other nitrogen sorces. Growth was slightly less for the NO-/sub 3/ treatment plants, but compared with NH+/sub 4/ and no nitrogen treatment, both NH/sub 4/NO/sub 3/ and NO-/sub 3/ treatments exhibited significantly greater growth responses. NO-/sub 3/ is recommended as the sole nitrogen source, especially for small seedlings of tulip poplar.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7068052
• Journal Information: J. Tenn. Acad. Sci.; (United States), Vol. 57:1
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
09 BIOMASS FUELS
AMMONIUM COMPOUNDS
BIOLOGICAL EFFECTS
NITRATES
AMMONIUM NITRATES
ANIONS
PH VALUE
PLANT GROWTH
POPLARS
SEEDLINGS
CHARGED PARTICLES
GROWTH
IONS
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PLANTS
TREES
551000* - Physiological Systems
140504 - Solar Energy Conversion- Biomass Production &amp; Conversion- (-1989)