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

Published online by Cambridge University Press:  12 June 2017

Chang-Chi Chu ,
R. D. Sweet ,
J. L. Ozbun  and
S. L. Kaplan
Chang-Chi Chu
Affiliation:
Dep. of Veg. Crops, Cornell Univ.
R. D. Sweet
Affiliation:
Dep. of Hortic. Sci. and Landscape Architecture, Univ. of Minnesota, St. Paul, MN 55101
J. L. Ozbun
Affiliation:
Dep. of Hortic. Sci. and Landscape Architecture, Univ. of Minnesota, St. Paul, MN 55101
S. L. Kaplan
Affiliation:
Dep. of Agron., Univ. of Wisconsin, Madison, WI 53706
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Abstract

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.

Keywords

Nitrate reductase
Type
Research Article
Information
Weed Science , Volume 28 , Issue 5 , September 1980 , pp. 484 - 486
Copyright
Copyright © Weed Science Society of America 

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References

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