Time of flowering in spring: Its regulation in temperate zone woody plants L. E. PowellH. J. SwartzC. G. Maybee Original Papers Pages: 81 - 84
The role of ethylene in the flowering response of bulbous plants W. J. De MunkTh. L. J. Duineveld Original Papers Pages: 85 - 90
Physiological activity of 1-amino-2-phenylethylphosphonic acid, a substrate analogue of phenylalanine J. S. KnyplKrystyna M. Janas Original Papers Pages: 91 - 94
The effect of inorganic phosphate on the ethylene production in tomato and apple fruits Jolanta SobolewskaH. Plich Original Papers Pages: 95 - 99
Carotenoids fromCapsicum annuum fruits: Influence of spectral quality of radiation M. LopezMa Emilia CandelaF. Sabater Original Papers Pages: 100 - 104
Comparison of some kinetic parameters of peroxidase and IAA oxidase in the course of growth and differentiation of plant cells Atanaska DenchevaDimitrina Klisueska Original Papers Pages: 105 - 113
Effects of nitrogen deprivation on the ATP-sulphurylase and O-acetylserine sulphydrylase activities of mesophyll protoplasts and bundle sheath strands of maize leaves Rossella GhisiF. AnaclerioC. Passera Original Papers Pages: 114 - 119
Effect of ínductive photoperiod and gibberellin treatment on peroxidase enzyme system in relation to floral induction inImpatiens balsamina L N. SawhneyS. Sawhney Original Papers Pages: 120 - 125
Production of embryoids and calli from isolated microspores of tomato (Lycopersicon esculentum Mill.) in liquid media T. M. VargheseGulshan Yadav Original Papers Pages: 126 - 129
Der Einfluß der Wurzelanaerobiose auf Äthanol-, Laktat- und Glukosegehalte sowie auf die Aktivitäten von ADH und LDH in Weizenkeimpflanzen Ricarda HoblacherJ. Poskuta OriginalPaper Pages: 130 - 136
Gladiolus “grassy top” disease recorded in Czechoslovakia and increased susceptibility of affected corms toFusarium sp. J. VáclavíkMarie UlbychováM. Jokeš Original Papers Pages: 137 - 140
Photoinduced pH and membrane potential changes in the algaPithophora pragensis D. Remiš Original Papers Pages: 141 - 144
The effect of phenylacetic acid on cholinesterase activity and on some isoenzymes of esterases and cholinesterases of peain vitro Rumjana NikolovaL. ChovjkaVěra Schejblová Original Papers Pages: 145 - 148
Comparison of hairy root and crown gall tumors ofArabidopsis thaliana Daniela PavingerováM. Ondřej Brief Communication Pages: 149 - 151
Differentiation ofPetunia hybrida tissues transformed byAgrobacterium rhizogenes andAgrobacterium tumefaciens M. OndřejRůzena Bísková Brief Communication Pages: 152 - 155