Summary
The role of nitrate in osmotic control was studied with Italian ryegrass grown in a nutrient solution in a climate room. Quantum-flux density, osmotic potential of the nutrient solution and availability of nitrate and chloride were varied independently. Plants at high quantum flux density (650 μmol m−2 s−1) had a lower osmotic potential, a higher carbohydrate concentration and a lower nitrate concentration than plants at low quantum flux density (310μmol m−2 s−1), the decrease in nitrate concentration was osmotically equivalent to the increase in carbohydrate concentration. When nitrate in the nutrient solution was partly replaced by chloride, the chloride taken up substituted an equivalent part of the nitrate in the plant. It is concluded that nitrate plays a role in osmoregulation of the plant and compensates for a shortage of other solutes.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Alberda Th 1965 Neth. J. Agric. Sci. 13, 335–360.
Clement C R, Hopper M J and Jones L H P 1979 J. Exp. Bot. 29, 453–464.
Clement C R, Jones L H P and Hopper M J 1979 In Nitrogen Assimilation in Plants, Eds. E T Hewitt and C V Cutting. Academic Press, London, pp 123–133.
Maynard D N, Barker A V, Minotti P L and Peck N H 1976 Adv. Agron. 28, 71–118.
Mengel K 1979 Acta Horticulturae 93, 133–151.
Tychsen K 1976 Acta Agric. Scand. 26, 189–195
Veen B W and Kleinendorst A 1985 J. Exp. Bot. 36, 211–218.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 Martinus Nijhoff Publishers, Dordrecht/Boston/Lancaster
About this chapter
Cite this chapter
Veen, B.W., Kleinendorst, A. (1986). The role of nitrate in osmoregulation of Italian ryegrass. In: Lambers, H., Neeteson, J.J., Stulen, I. (eds) Fundamental, Ecological and Agricultural Aspects of Nitrogen Metabolism in Higher Plants. Developments in Plant and Soil Sciences, vol 19. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4356-8_70
Download citation
DOI: https://doi.org/10.1007/978-94-009-4356-8_70
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8437-6
Online ISBN: 978-94-009-4356-8
eBook Packages: Springer Book Archive