1. Biological Nitrogen Fixation by Endophytic Diazotrophs in Non Leguminous Crops in the Tropics; J. Dobereiner, V.L.D. Baldani. Session 1: Biochemistry and Genetics of Diazotrophs. 2. Analysis of Nitrogen Fixation and Regulatory Genes in the Sugarcane Endophyte Acetobacter diazotrophicus; S. Lee, et al. 3. Functional Analysis of a Cloned NIFA Homologous Gene of Azospirillum brasilense YU62; Gui Su, et al. 4. Identification of Plant Growth Hormones Produced by Bacterial Isolates from Rice, Wheat and Kallar Grass; G. Rasul, et al. Session 2: Ecophysiological Studies for the Improvement of Plant--Microbe Interaction. 5. The Rice Endophytic Diazotroph and PGPR; W. Song, et al. 6. Response of Two Maize Cultivars to Azospirillum Inoculation and/or Farmyard Manure Amendment Using 15N-Dilution Method; T.M.M. Moharram, et al. 7. Contribution of Non-Leguminous Biofertilizers to Rice Biomass, Nitrogen Fixation and Fertilizer-N Use Efficiency under Flooded Conditions; S. Ali, et al. 8. Detection of Inoculated Plant Growth Promoting Rhizobacteria in the Rhizosphere of Rice; S. Mehnaz, et al. Posters. 9. Salt Tolerance of Diazotroph Alaligenes faecalis and its Salt-Tolerant Association with Host Rice; S.Z. Ping, et L. 10. Interaction of Azorhizobium caulinodans with Different Rice Cultivars for Increased N2-Fixation; S.N. Khokhar, A. Qureshi. 11. Response of Wheat to an Associative Diazotroph Inoculum Under Different Rates of Nitrogen Fertilizer; A. Rashid, et al. 12. Effect of High Temperature on Nitrogen Fixation in Soybean Cultivars; M.I. Keerio, J.M. Wilson. 13. Effect of Plant Growth Regulators and Rhizobium Inoculum On N2- Fixation and Yield of Chickpea; F. Zarrin, et al. Session 3: Paranodulation and Forced Association of Diazotrophs with Non-Legumes. 14. Prospects for Facilitated Evolution of Effective N-Fixing Associations with Cereals: Comparative Performance of Azospirillum brasilense SP7-S with Various Free-Living Diazotrophs in Para-Nodulated Wheat; I.R. Kennedy, et al. 15. Transgenic Rice Plants with Parasponia Hemoglobin Gene and its Expression; Wei Guo, et al. 16. Cell Structures of Pseudonodules Formed on the Roots of Barley and Rice; Shan Xueqin, Jing Yuxiang. Posters. 17. Induction of Paranodulation by 2,4-D IAA and Tryptophan in Wheat Inoculated with Various Diazotrophs; H. Youssef, et al. 18. Optimizing Zinc and Phosphate Statuses for Enhancing Field Colonization and Contribution of the Symbiotic Association Azolla-anabaena to Rice Performance; Y.G. Yanni. 19. Enhancement of Rice Performance and Incidence of Natural Fungal and Insect Damage with Cyanobacterization, Microelements, Combined Nitrogen and Certain Pesticide; Y.G. Yanni, et al. Session 4: Molecular Biology of Plant--Diazotroph Interaction. 20. Colonisation and NIFH Expression on Rice Roots by Alcaligenes faecalis A15; H. Vermeiren, et al. 21. Responses to Azospirillum brasilense to Salinity Stress; A.K. Tripathi, B.M. Mishra. (Part contents).