1. The effect of Cu²⁺ on uptake and assimilation of ammonium by cucumber seedlings

   • Marek Burzyñski
   • Józef Buczek

   OriginalPaper Pages: 3 - 8

2. Effect of potassium deficiency on growth and some biochemical characteristics in two lines of lentil (Lens culinaris Medic.)

   • M. Ashraf
   • Z. U. Zafar

   OriginalPaper Pages: 9 - 15

3. Involvement of calcium in the in vitro sensitivity change of the plasma membrane H⁺ ATPase to indole-3-acetic acid

   • Jalil Bellamine
   • Hubert Greppin

   OriginalPaper Pages: 17 - 22

4. Reaction of faba bean plants to soil and foliar N application and K nutrition

   • Urszula Wojcieska
   • Anna Kocoñ

   OriginalPaper Pages: 23 - 28

5. Differential expression of esterase and MDH isozymes during in vitro culture in maize (Zea mays L.)

   • K. V. Rao
   • P. Suprasanna
   • G. M. Reddy

   OriginalPaper Pages: 29 - 32

6. Determination of some oxidative stress parameters in variegated leaves of Chlorophytum comosum (Thunb) bak

   • Ewa Niewiadomska
   • Zbigniew Miszalski

   OriginalPaper Pages: 33 - 39

7. Effect of cycloheximide on some physiological changes associated with senescence of detached flowers of Iris germanica L.

   • Sheikh M. Sultan
   • Sikandar Farooq

   OriginalPaper Pages: 41 - 45

8. Oxidative stress in plants

   • Grzegorz Bartosz

   Review Pages: 47 - 64

9. Book reviews

   • S. Knutelski
   • H. Wojciechowska
   • M. Kamińska

   BookReview Pages: 65 - 86