References
- Belligno , A. , lo Piero , A. R. , Ioppolo , A. , Petrone , G. and Izzo , R. 1994 . Metabolic changes during potato tuber growth and storage . Giornale Botanico Italiano , 128 : 531 – 532 .
- Guardia , M. D. and Benlloch , M. 1980 . Effects of potassium and gibberellic acid on stem growth of whole sunflower plants . Physiol. Plant , 49 : 443 – 448 .
- Izzo , R. , Scagnozzi , A. , Belligno , A. and Navari-Izzo , F. 1993 . “ Influence of NaCl treatment on Ca, K and Na interrelations in maize shoots ” . In Optimization of Plant Nutrition Edited by: Fragoso , M. A.C. and van Beusichem . 577 – 582 . Netherlands
- Porra , R. J. , Thompson , W. A. and Kriedemann , P. E. 1989 . Determination of accurate extinction coefficients and simultaneous equations for assaying chlorophylls a and b extracted with four different solvents: verification of the concentration of chlorophyll standards by atomic absorption spectroscopy . Biochim. et Biophys. Acta , 975 : 384 – 394 .
- Scott , B. J. and Robson , A. D. 1990 . Changes in the content and form of magnesium in the first trifoliate leaf of subterranean clover under altered or constant root supply . Aust. J. Agric. Res. , 41 : 511 – 519 .
- Wyn , Jones R.G. , Brady , C. J. and Speirs , J. 1979 . “ Ionic and osmotic relations in plant cells ” . In ‘Recent Advances in the Biochemistry of Cereals’ , Edited by: Laidman , D. L. and Wyn , Jones R.G. 63 – 103 . London : Academic Press .