Vol 46, No 3 (1977)

Table of Contents

Cyto-histological processes during the differentiation of the tapetal cells in the anthers of Anthemis tinctoria L., Erigeron annuus (L.) Pers. and E. canadensis L.
K. Bijok , B. Kreńska, T. Pawlak
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389-402
Qualitative and quantitative studies on phytoplankton and chlorophyll content in the pelagic water of Lake Żarnowieckie in 1974
Józefa Sosnowska
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403-422
Proposal of new syntaxonomic classification of Myriophyllo-Nupharetum W. Koch 1926 phytocenoses and their distribution
H. Tomaszewicz
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423-436
Comparison of some chemical and physico-chemical properties of natural and model sodium humates and of the biological activity of both substances in tomato water cultures
S. Gumiński, D. Augustyn, J. Sulej
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437-448
Pollen and sperm nuclei development in rye
Agnieszka Mostowska, Maria Charzyńska
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449-457
Anomalous pollen grain development after nondifferentiating microspore division in Eremurus
M. Charzyńska, J. Maleszka, B. Hon
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459-469
Induction of plants from anthers of Beta vulgaris cultured in vitro
J. H. Rogozińska, M. Gośka, A. Kuźdowicz
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471-479
Purification and properties of acid phosphatase from Avena elatior L. seeds
E. Wieczorek, I. Lorenc-Kubis, B. Morawiecka
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481-488
Influence of nitrate concentration on pigment content in Chlorella pyrenoidosa
M. Krywalska, J Skrzypczyk
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489-499
Mechanism of formation of spiral grain in Aesculus stems: dissymmetry of deformation of stems caused by cyclic torsion
W. Pyszyński
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501-522
Paper chromatography of anthocyanins in two species of Aconitum from the Tatry .Mts.: A. variegatum (L.) Rchb., and A. napellus ssp. skerisorae (Gayer) Seitz.
M. Krzakowa, R. Zieliński, J. Szweykowski
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523-529
Cambial domain pattern in the root and root collar of Plalanus
J. Krawczyszyn
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531-541