References
- Aslam , M. R. , Huffaker , C. , Rains , D. W. and Rao , K. P. 1979 . Influence of light and ambient carbon dioxide concentration on nitrate assimilation by intact barley seedlings . Plant Physiol. , 63 : 1205 – 1209 .
- Barkemeyer , H. 1966 . Determination of nitrate content in tobacco by means of ultraviolet spectrometry . Beitrage zur Tabakforschung. , 3 : 455 – 459 .
- Bowling , D. J. F. 1981 . “ Evidence of an ion uptake controller in Helianthus annus ” . In Structure and function of plant roots , Edited by: Brouwer , R. 179 The Hague : Dr. W. Junk Publishers .
- Bowling , D. J. F. and Dunlop , J. 1978 . Uptake of phosphate by clover. I. Evidence for an electrogenic phosphate pump . J. Exp. Bot. , 29 : 1139 – 1146 .
- Bowling , D. J. F. , Graham , R. D. and Dunlop , J. 1978 . The relationship between the cell electrical potential difference and salt uptake in the root of Helianthus annus . J. Exp. Bot. , 29 : 135 – 140 .
- Bowling , D. J. F. , Watson , B. T. and Ehwald , R. 1985 . The effect of phloem ringing on root growth and potassium uptake by Helianthus annus . J. Exp. Bot. , 36 : 290 – 297 .
- Chen , T. M. and Reis , S. K. 1969 . Effect of light and temperature on nitrate uptake and nitrate reductase activity in rye and oat seedlings . Can. J. Bot. , 47 : 341 – 343 .
- Clement , C. R. , Hopper , M. J. , Jones , L. H. P. and Leafe , E. L. 1978 . The uptake of nitrate by Lolium perenne from flowing nutrient solution . J. Exp. Bot. , 29 : 1173 – 1183 .
- Darbyshire , B. , Henry , R. J. , Melhuish , F. M. and Hewett , R. K. 1979 . Diurnal variations in non‐structural carbohydrates, leaf extension, and leaf cavity carbon dioxide concentrations in Allium cepa W . J. Exp. Bot. , 30 : 109 – 118 .
- Deanne‐Drummond , C. E. , Clarkson , D. T. and Johnson , C. B. 1980 . The effect of differential root and shoot temperature on the nitrate reductase activity, assayed in vivo and in vitro in roots of Hordeum vulgare (barley). Relationship with diurnal changes in endogenous malate and sugar . Planta , 148 : 455 – 461 .
- Hansen , G. K. 1980 . Diurnal variation of root respiration rates and nitrate uptake as influenced by nitrogen supply . Physiol. Plant. , 48 : 421 – 427 .
- Hoagland , D. R. and Arnon , D. I. 1950 . The water culture method for growing plants without soil , 347 Calif. Agric. Expt. Sta. . Circular
- Lowe , R. H. and Hamilton , J. L. 1967 . Rapid method for determination of nitrate in plant and soil extracts . J. Agr. Food Chem. , 15 : 359 – 361 .
- L'Annunziata , M. F. 1979 . Radiotracers in agricultural chemistry , 227 – 262 . New York : Academic Press .
- MacKown , C. T. , Volk , R. J. and Jackson , W. A. 1981 . Nitrate accumulation, assimilation and transport by decapitated corn roots: effects of prior nitrate nutrition . Plant Physiol. , 68 : 133 – 138 .
- Moll , R. H. and Stuber , C. W. 1971 . Comparisons of response to alternative selection procedures initiated with two populations of maize (Zea mays L.) . Crop Sci. , 11 : 706 – 711 .
- Pace , G. M. 1981 . The effect of energy supply on the absorption, compartmentation, reduction, and translocation of 15N‐nitrate in maize seedlings , North Carolina State University . Ph.D. dissertation,
- Pace , G. M. and HcClure , P. R. in press . Comparison of nitrate uptake kinetic parameters across maize inbred lines . J. Plant Nutr. ,
- Pan , W. L. , Jackson , W. A. and Moll , R. H. 1985 . Nitrate uptake and partitioning by corn (Zea mays L.) root systems: differences among genotypes and stages of root development . J. Exp. Bot. , 36 : 1341 – 1351 .
- Pearson , C. J. and Steer , B. T. 1977 . Daily changes in nitrate uptake and metabolism in Capsicum annum . Planta , 137 : 107 – 112 .
- Pearson , C. J. , Volk , R. J. and Jackson , W. A. 1981 . Daily changes in nitrate influx, efflux and metabolism in corn and millet . Planta , 152 : 319 – 324 .
- Polisetty , R. and Hageman , R. H. 1982 . Studies on nitrate uptake by solution grown corn (Zea mays L.) genotypes . Biol. Plant. , 24 : 117 – 121 .
- Rao , K. P. and Rains , D. W. 1976 . Nitrate absorption by barley. II. Influence of nitrate reductase activity . Plant Physiol. , 57 : 59 – 62 .
- Reed , A. J. and Hageman , R. H. 1980 . Relationship between nitrate uptake, flux, and reduction and the accumulation of reduced nitrogen in maize. I. Genotype variation . Plant Physiol. , 66 : 1179 – 1183 .
- Teyker , R. H. 1983 . Genetic variability in seedling nitrate uptake and nitrate assimilation in roots of contrasting corn inbred lines , North Carolina State University . M. S. Thesis.
- Tischner , R. and Lorenzen , H. 1979 . Nitrate uptake and nitrate reduction in synchronous Chlorelia . Planta , 146 : 287 – 292 .
- Wagner , E. Integration of the activity in the higher plants . Symp. Soc. Exp. Biol. Molecular basis of physiological rhythms , Edited by: Jennings , D. H. Vol. 31 , pp. 33 – 72 . Cambridge University Press .