Comparison of plant uptake and plant toxicity of various ions in wheat D. M. WheelerI. L. Power Research Article Pages: 167 - 173
Nitrogen fixation in Faidherbia albida, Acacia raddiana, Acacia senegal and Acacia seyal estimated using the 15N isotope dilution technique I. NdoyeM. GueyeB. Dreyfus Research Article Pages: 175 - 180
Roots growing in rock fissures: Their morphological adaptation Maciej A. ZwienieckiMichael Newton Research Article Pages: 181 - 187
Selection of Rhizobium leguminosarum bv. viceae strains for inoculation of Pisum sativum L. cultivars: Analysis of symbiotic efficiency and nodulation competitiveness A. N. FesenkoN. A. ProvorovB. V. Simarov Research Article Pages: 189 - 198
Seasonal variations of leaf water potential and growth in fertigated carob-trees (Ceratonia siliqua L.) P. J. CorreiaM. A. Martins-Loucão Research Article Pages: 199 - 206
Formation of nodular structures on the non-legumes Brassica napus, B. campestris, B. juncea and Arabidopsis thaliana with Bradyrhizobium and Rhizobium isolated from Parasponia spp. or legumes grown in tropical soils M. J. TrinickP. A. Hadobas Research Article Pages: 207 - 219
Uptake of 32P from labelled organic matter, by mycorrhizal and non-mycorrhizal subterranean clover (Trifolium subterraneum L.) Erik J JonerIver Jakobsen Research Article Pages: 221 - 227
Separate mechanisms of aluminium toxicity for nitrate uptake and root elongation R. P. DurieuxR. J. BartlettF. R. Magdoff Research Article Pages: 229 - 234
Growth and nutrient characteristics in bog and fen populations of Scots pine (Pinus sylvestris) Mikael Ohlson Research Article Pages: 235 - 245
A critical assessment of the value of petiole sap analysis in optimizing the nitrogen nutrition of the potato crop D. K. L. MacKerronM. W. YoungH. V. Davies Research Article Pages: 247 - 260
Enhanced suppression of plant growth through production of L-tryptophan-derived compounds by deleterious rhizobacteria Muhammad SarwarRobert J. Kremer Research Article Pages: 261 - 269
Indentification of Acetobacter diazotrophicus, Herbaspirillum seropedicae and Herbaspirillum rubrisubalbicans using biochemical and genetic criteria A. UretaB. AlvarezG. Martinez-Drets Research Article Pages: 271 - 277
Influence of mechanical impedance on root exudation of maize seedlings at two development stages V. Boeuf-TremblayS. PlantureuxA. Guckert Research Article Pages: 279 - 287
Influence of host genotypes on growth, symbiotic performance and nitrogen assimilation in faba bean (Vicia faba L.) under salt stress Maria del Pilar CordovillaFrancisco LigeroCarmen Lluch Research Article Pages: 289 - 297
Phytosiderophore release in relation to micronutrient metal deficiencies in barley Dirk GriesSylke BrunnDavid R. Parker Research Article Pages: 299 - 308
Salinity, water use and yield of maize: Testing of the mathematical model ecosys R. F. Grant Research Article Pages: 309 - 322
Uptake of 24Mg by excised pine roots: A preliminary study Peter HögbergPaul JensénHelene Ohlsson Short Communication Pages: 323 - 326
Arbuscular mycorrhizal fungi induced alteration to root longevity of poplar J. E. HookerK. E. BlackD. Atkinson Short Communication Pages: 327 - 329
Growth of Albugo candida (race unidentified) on Brassica juncea callus cultures B. K. GoyalU. KantP. R. Verma Short Communication Pages: 331 - 337