An improved technique for measuring assimilation efficiency by the 51Cr−14C twin tracer method John A. Wightman OriginalPaper Pages: 273 - 284
Environmental limitations of photosynthesis on a California evergreen shrub H. A. MooneyA. T. HarrisonP. A. Morrow OriginalPaper Pages: 293 - 301
The role of air humidity and temperature in controlling stomatal resistance of Prunus armeniaca L. under desert conditions E. -D. SchulzeO. L. LangeU. Buschbom OriginalPaper Pages: 303 - 314
The development of benthonic phytocoenosis on artificial substrates in the ticino river Antonia CattaneoSergio GhittoriValerio Vendegna OriginalPaper Pages: 315 - 327
A study on the population dynamics of the perennial plant species Chamaenerion angustifolium (L.) scop. J. van Andel OriginalPaper Pages: 329 - 337
Interactions between photoperiodism and temperature with respect to the control of dormancy in the adult stage of Pterostichus oblongopunctatus F. (Col., Carabidae) H. U. ThieleH. Könen OriginalPaper Pages: 339 - 343