Nitrate Reduction in Redroot Pigweed (Amaranthus retroflexus) and Common Lambsquarters (Chenopodium album) as a Function of Leaf Age and Photosynthetic Photon Flux Density

Nitrate reduction on a leaf fresh weight basis was measured in common lambsquarters (Chenopodium album L.) and redroot pigweed (Amaranthus retroflexus L.) in individual leaves as a function of the photosynthetic photon flux density (PPFD) under which the plants were grown. Common lambsquarters had g...

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Bibliographic Details
Published in:Weed science 1980-09, Vol.28 (5), p.484-486
Main Authors: Chu, Chang-Chi, Sweet, R. D., Ozbun, J. L., Kaplan, S. L.
Format: Article
Language:English
Subjects:
Flux density
Leaves
Nitrates
Photons
Plant interaction
Plants
Weeds
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Summary:Nitrate reduction on a leaf fresh weight basis was measured in common lambsquarters (Chenopodium album L.) and redroot pigweed (Amaranthus retroflexus L.) in individual leaves as a function of the photosynthetic photon flux density (PPFD) under which the plants were grown. Common lambsquarters had greater rates of nitrate reduction than did redroot pigweed regardless of leaf age or PPFD and responded to a significantly greater degree when PPFD was increased, with a proportionately greater increase in nitrate reduction among younger leaves.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500061075