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Dimitrina Nedeva, Anna Nikolova - Fresh and dry weight changes and germination capacity of natural or premature desiccated developing wheat seeds.

Antoaneta Arsova - Adaptability of Pinus nigra Arn. depending on soil pH.

Yuzeir Zeinalov, Liliana Maslenkova - Estimation of the quantum efficiency of photosynthesis. I. Theoretical ground and experimental approaches.

N. I. Rekoslavskaya, O. V. Yurjeva, R. K. Salyaev, S. Mapelli, T. V. Kopytina - D-tryptophan as IAA source during wheat germination.

Valya Vassileva, George Ignatov - Effect of polyamines on oxygen and metabolite transport across mitchondrial and symbiotic membranes of Galega orientalis nodules.

Liliana Maslenkova, Yuzeir Zeinalov - Thermoluminescence and oxygen evolution in JA-treated barley (Hordeum vulgare L.).

Konstantin Benderliev - Algae and cyanobacteria release organic chelators in the presence of Fe(III) thus keeping iron dissolved.

Irina Puneva, Tonka Toncheva-Panova, Milka Bozhkova - Effect of Fusarium oxysporum exudate on the growth and viability of Scenedesmus acutus.