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1971•Canadian Journal of Plant ScienceOpen access

COMPARISON OF THE NITRATE METABOLISM IN ORCHARDGRASS AND BIRDSFOOT TREFOIL

Gary Edward Mellor, Robert W. Sheard

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Abstract

In a growth chamber and nutrient solution environment, orchardgrass (Dactylis glomerata L.) produced more dry matter and responded to a higher level of NO3−-N in the media than birdsfoot trefoil (Lotus corniculatus L.). Nitrate reductase was localized primarily in the root tips of L. corniculatus, but was found to be distributed throughout the roots and shoots of D. glomerata. Nitrate was reduced primarily in the shoots of D. glomerata but in the roots of L. corniculatus.

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In a growth chamber and nutrient solution environment, orchardgrass (Dactylis glomerata L.) produced more dry matter and responded to a higher level of NO3−-N in the media than birdsfoot trefoil (Lotus corniculatus L.). Nitrate reductase was localized primarily in the root tips of L. corniculatus, but was found to be distributed throughout the roots and shoots of D. glomerata. Nitrate was reduced primarily in the shoots of D. glomerata but in the roots of L. corniculatus.

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Available abstract

In a growth chamber and nutrient solution environment, orchardgrass (Dactylis glomerata L.) produced more dry matter and responded to a higher level of NO3−-N in the media than birdsfoot trefoil (Lotus corniculatus L.). Nitrate reductase was localized primarily in the root tips of L. corniculatus, but was found to be distributed throughout the roots and shoots of D. glomerata. Nitrate was reduced primarily in the shoots of D. glomerata but in the roots of L. corniculatus.

Key concepts: Lotus corniculatus, Dactylis glomerata, Trefoil, Nitrate reductase, Shoot, Nitrate, Biology, Agronomy

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