1. Seasonal variations in apparent photosynthesis among plant stands of different soybean cultivars

   • E. M. Larson
   • J. D. Hesketh
   • D. B. Peters

   OriginalPaper Pages: 3 - 20

2. Correlations among leaf CO₂-exchange rates, areas and enzyme activities among soybean cultivars

   • J. D. Hesketh
   • W. L. Ogren
   • D. B. Peters

   OriginalPaper Pages: 21 - 30

3. Structural and functional stability of isolated intact chloroplasts

   • Magdolna Droppa
   • Gábor Horváth
   • Ágnes Faludi-Dániel

   OriginalPaper Pages: 31 - 38

4. Effects of abscisic acid on CAM in Portulacaria afra

   • Irwin P. Ting

   OriginalPaper Pages: 39 - 48

5. Comparison of the long-wave chlorophyll fluorescence in various green and blue-green algae and diatoms

   • J. C. Goedheer

   OriginalPaper Pages: 49 - 60

6. Herbicide resistance in a mutant of the microalga Bumilleriopsis filiformis

   • Peter Böger
   • Gerhard Sandmann
   • Roswitha Miller

   OriginalPaper Pages: 61 - 74