Vol 52, No 1 (1983)

Table of Contents

Investigations on the ultrastructure of the callus tissue of Liriodendron tulipifera L. developed in vitro
Barbara Stefaniak, Adam Woźny
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3-8
The development rhythm of the flower-bud in some Papilionaceae species. III. Macrosporogenesis, microsporogenesis and early gametogenesis in several species of the Vicieae tribe
Wanda Wojciechowska
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9-21
Sesquiterpene lactones. XXIII. Isolation of sesquiterpene lactones from Centaurea L. species
Barbara Geppert, Bohdan Drożdż, Michał Kiełczewski, Mirosław Holub
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23-34
Diversity in the seeds of Trigonella occulta Defile
Ramesh C. Bhatia
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35-44
Imbibition and germination in the seeds of Heliotropium supinum L.
Ramesh C. Bhatia
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45-51
Effect of winter wheat (cv. Jana) seed ageing on its viability and vigour
Eugeniusz Sójka, Riad Zaidan
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53-60
Effect of N-hydroxyurea, mitomycin C and actinomycin D on tumour formation on the leaves of Kalanchoe daigremontiana
Józef Koawalczyk
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61-69
Influence of gibberellins on flower formation in Hyoscyamus niger L.
Jan Kopcewicz, Gabriela Centkowska
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71-75
Nitrate reductase and acid phosphatase activities as affected by inorganic phosphate in corn roots
Marie Kummerova, Józef Buczek
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77-86
The variability of phenol compounds based on karyological studies of taxa of the genus Vaccinium L., subgenus Oxycoccus (Hill) A. Gray
Wanda Gugnacka-Fiedor
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87-99
The finding of Compsopogon coeruleus (Balbis) Montagne in Poland
Hanna Szymańska, Irena Krupińska
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101-103