Short‐term exposure to atmospheric ammonia does not affect low‐temperature hardening of winter wheat

Johannes M. A. M. Clement*, Jan Henk Venema, Philip R. Van Hasselt

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    4 Citations (Scopus)

    Abstract

    The effect of atmospheric NH3 on low-temperature hardening of winter wheat (Triticum aestivum L. cv. Urban) was investigated. Growth and photosynthesis were stimulated by ammonia exposure. After a 14 d exposure at moderate temperatures (day/night 18.5/16 degrees C) total nitrogen content was enhanced by 45% compared with the controls. During that period, water-soluble sugar content was not affected by NH3. After lowering the temperature to 4/3 degrees C, sugar content of the control plants doubled within 2 d, whereas in the plants exposed to NH3 it increased to a much lesser extent. Total nitrogen content further increased, leading to an 85% higher level in the NH3-exposed plants. Frost hardiness was not affected by atmospheric ammonia. It is concluded that winter wheat is tolerant to high ammonia concentrations, even under unfavourable growth conditions.

    Original languageEnglish
    Pages (from-to)345-351
    Number of pages7
    JournalNew Phytologist
    Volume131
    Issue number3
    DOIs
    Publication statusPublished - Nov-1995

    Keywords

    • AIR POLLUTION
    • AMMONIA
    • HARDENING
    • SUGAR CONTENT
    • TRITICUM AESTIVUM (WINTER WHEAT)
    • SPRUCE PICEA-ABIES
    • PINUS-SYLVESTRIS
    • GASEOUS AMMONIA
    • H2S FUMIGATION
    • LEAF-DISKS
    • RYEGRASS
    • NEEDLES
    • LEAVES
    • SO2
    • HARDINESS

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