Nitrate movement in xylem of lucerne plants
Nitrate content in lucerne stems and leaf blades immersed by cut ends in distilled water or in KNO3 solution increased with the increase in KNO3 concentration and with the duration of exposure under irradiance of 100 or 230 W m−2 PAR. The nitrate content increased from basal stem parts to apical stem parts and leaves. Nitrate was transported mainly with transpiration stream. Some flow variations occurred in stems causing time changes in nitrate content in different parts of stems.
KeywordsNitrate Concentration Leaf Blade Nitrate Content Stem Segment Closed Symbol
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