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Differences in Uptake Kinetics of Ammonium and Nitrate in Legumes and Cereals by Theertham P. Rao; Osamu Ito; Ryouichi Matsunga is a Agricultural and Biological Sciences article available to read on EtoBox.

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Influx isotherms were obtained for nitrate and ammonium from three legumes, Cajanus cajan (L.) Millsp., Cicer arietinum L. and Arachis hypogaea L. and three cereals, Sorghum bicolor (L.) Moench., Pennisetum glaucum L. and Zea mays L. The transition in influx isotherms for both nitrogen sources was found to be within the concentration range (0.05-2.5mM) tested. There were significant differences in Km and Vmax for ammonium between legumes and cereals. The difference in the kinetic properties for nitrate uptake between the two groups of plants only became apparent at the higher concentration tested. Legumes translocated absorbed nitrate and ammonium to shoots more rapidly than cereals. Results show that there are significant differences in uptake and translocation of ammonium and nitrate between legumes and cereals.

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Author

Theertham P. Rao; Osamu Ito; Ryouichi Matsunga

Publisher

Springer; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0032-079X)

Published

1993

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)