The state of the pores in functioning sieve plates A. W. SiddiquiD. C. Spanner OriginalPaper Pages: 181 - 189
Role of mineral nutrients and growth regulators in the apical dominance in Solanum sisymbrifolium J. L. Wakhloo OriginalPaper Pages: 190 - 194
Effects of streptomycin on plastids in dividing Euglena Yehuda Ben-ShaulIlana Ophir OriginalPaper Pages: 195 - 203
Die Wirkung von Dinactin auf Volumenänderungen ganzer Chloroplasten im Licht und im Dunkeln Elisabeth Bosshard-HeerReinhard Bachofen OriginalPaper Pages: 204 - 211
Environmental control of growth and development of Scrophularia marilandica R. H. GrovesA. Lang OriginalPaper Pages: 212 - 219
Le rôle du phytochrome dans la germination des graines de Nemophila insignis (L.) P. RollinR. MalcosteD. Eude OriginalPaper Pages: 227 - 234
Growth substances and the relation between phenotype and genotype in Pisum sativum A. J. McCombJ. A. McComb OriginalPaper Pages: 235 - 245
Low-temperature effects on phenylalnine ammonia-lyase activity in gherkin seedlings G. Engelsma OriginalPaper Pages: 246 - 254
RNA synthesis in the cells of the apical meristem of Sinapis alba during transition from the vegetative to the reproductive condition R. BronchartG. BernierA. Havelange OriginalPaper Pages: 255 - 269
Wirkung von CCCP und UO 2 ++ auf die Ionenfluxe in Wurzeln Josef Weigl Kurze Mitteilung Pages: 270 - 273
Starch and apparent rate of photosynthesis of leaves of Lolium perenne grown at different temperatures D. Wilson Short Communication Pages: 274 - 278
Phytylation of chlorophyllide and prolamellar-body transformation in etiolated peas Timothy Treffry Short Communication Pages: 279 - 284