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Growth of Liriodendron Tulipifera Seedlings with Different Levels of Nitrogen Supply

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Abstract:

Liriodendron tulipifera seedlings were grown for 8 weeks in aerated nutrient solutions with five levels of nitrate nitrogen ranging from 13 to 210 ppm N. Classical growth analysis indicated that nitrogen affected rate of dry matter production per unit of leaf area (ULR), with maximum values in the 105 ppm N treatment. Ratio of leaf area to plant weight, and leaf initiation were little affected by nitrogen levels. ULR increased with age, while the ratio of leaf area increment to leaf weight increment, and percentage of growth devoted to leaves decreased. Nitrogen supply affected the relative distribution of growth within plants so that shoot:root ratios increased with increasing nitrogen supply. Farest Sci. 17:287-292.

Keywords: Yellow-poplar; fertilizers; growth and development

Document Type: Journal Article

Affiliations: Senior Research Fellow at the Forest Research Inst., Rotorua, New Zealand, on leave from the Division of Forestry and Wildlife Sciences, Virginia Polytechnic Instit., Blacksburg 24061

Publication date: September 1, 1971

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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