Contents: Preface. I. Presidential address: Agricultural importance of blue-green algae [cyanobacteria]/G.S. Venkataraman. Special lectures: 1. Biology of reproduction in Turbinaria conoides [J.Agardh] Kutzing [Fucales, sargassaceae] /M.R. Vijayaraghavan & Gunwant Sokhi. 2. Indian seaweeds : resources and utilization/A. Pant and Arvind Untawale. 3. Algalization of saline soils and its influence on crop and soil properties/B.D. Kaushik and B.L. Jain. 4. Glycollate metabolism in Triceratium dubium brightwell/V.N.R. Rao & K. Naseem. 5. Aspects and prospects of self purification of lotic waters/A.C. Shukla. 6. Algal aeroflora from Aurangabad/S.T. Tilak & Sabina Anis. 7. Growth responses of prokaryotic algae towards heavy metals/R.S. Gupta and Usha Verma. 8. Studies on correlative pyruvic acid protein interweb in certain chlorophyceae and cyanophyceae/Anjum and A.C. Shukla. 9. A contribution to the marine algae of Andaman and Nicobar islands and its significance/A.K. Awasthi. 10. Periodicity and succession of algae growing in association with Wolffia arrhiza/A.K. Awasthi & A.C. Shukla.

11. Characterization of penicillin resistant strain of Scenedesmus bijugatus [TURP].KUETZ and its mutant subm-I/V. Bajaj & Pushpa Srivastava. 12. Application of algal bioassays to determine the nutritional status in impoundments of Karnatak state/S.C. Bharti & M.V.R.N. Acharyulu. 13. Production ecology of two fresh water lakes of Puri district/A.A.K. Chatterjee and R.C. Mohanty. 14. Influence of leaf extracts of Azadirachta indica (L.) on Cladophora crispata (Roth) Kuetz/G. Chandrakala and Vidyavati. 15, Eutetramorus planctonicus [KORCH] Bourr. under ultraviolet radiations/P.K. Badheech & Pushpa Srivastava. 16. Observations on the colony formation in scenedesmus obliguus in varying concentrations of carbondioxide and light intensities/O.A.K. Das. 17. Application of tissue cuclture to some economically important marine algal species/G.V. Deshmukhe. 18. Identification of the survival and development factor in the fresh water extract of Lyngbya majescula for Poekilocerus pictus [Orthoptera : Acrididae] NYMPHS/A. Dixit and Lorna Dixit. 19. Rhizoclonium hieroglyphicum extract as accelerator of pollene tube growth in Datura alba/S.C. Gupta. 20. Comparative phytoplankton ecology of certain temple tanks of Dharwad/G.R. Hegde.

21. Non-nitrogen fixing cyanobacteria as bio-fertilizer/G.N. Jha & B.N. Verma. 22. Studies on the use of symbiotic blue-green algae - Anabaena azollae - Azolla association for rice crop/S. Kannaiyan. 23. Histochemical studies in Nitella furcata Su BSP. Mucronata/Inderdeep Kaur & M.R. Vijayaraghavan. 24. The effect of hypo- and hyper-salinity on the inorganic constituents in Gracilaria carticata J. Ag./A.H. Kulkarni, G.B. Dixit and Late J.D. Nimbalkar. 25. Clonal variability and nature of chloramphenicol - resistance in the cyanobacterium nostoc linckia/D. Kumar & H.D. Kumar. 26. Role of myxophyceae to foster - its extension for the rural development with special reference to farmer's land/S. Kumar. 27. Addition to nostocaceae KUETZ from Banana fields of Jalgaon district, Maharashtra/A.D. Mahajan & Neelima Mahajan. 28. Algal infestation in Korwa/R.K. Maurya. 29. Anaerobiosis, T.T.C. reduction and nitrogen fixation in cyanobacterium nostoc linckia/A.K. Mishra, Abha Singh and H.D. Kumar. 30. Algae as indicators of water quality and allergins/S.P. Misra & M. Boswal.

31. Algal flora of alcohal distillary effluent--a sample survey/N. Mohan, N. Kumar and J. Kohan. 32. Influence of tannery effluent on Anabeana/N. Mohan, N. Kumar & R.P. Katiyar. 33. Influence of algae as manure on growth and composition of plants - I. Linseed/N. Mohan R.P. Katiyar and D.K. Dwivedi. 34. Succession and periodicity of chlorophyceae in Agra canal, Delhi/S.K. Nigam & A.C. Shukla. 35. Effects of insecticides [Dimecron and Nuvacron] on the Karyology of Rhizoclonium Hieroglyphicum [AG]Kg./C. :admaja & Vidyavati. 36. An assessment of the pollution effect of chromium containing factory waste on the growth potential of Spirulina platensis/R. Pal and P. Chatterjee. 37. Studies on effect of some macro-elements on spore formation in Pithophora varia Wille/S.N. Pandey & S. Agnihotri. 38. Algal toxicity--a resume/S.N. Pandey & A.K. Tripathi. 39. Diatoms as indicators of water pollution/U.G. Pandey. 40. An applied algal, biomass-hydrogen production system using sea water and solar energy/S. Ramachandran.

41. Biofertilizer activity of BGA in rice cultivation/M.D. Rather & A.M. Mir. 42. Experimental studies on germination of oospores of Chara zeylanica/S. Ray and Probir Chatterjee. 43. Effect of Phormidium foveolarum on pollen germination of Abelmoschus esculentus/S.C. Sharma & P. Gupta. 44. Comparative studies on the N2-fixation by Azolla, blue-green algae and other organisms in the rice soil/A.L. Singh & P.K. Singh. 45. Algal flora of river Ganga between Shuklaganj (Unnao) and Kalakankar [Pratapgarh]/A.K. Sinha, D.C. Pandey, A. Kumar and V.P. Singh. 46. Application of phyco-hormones containing algal extracts in agriculture/A.C. Shukla. 47. Diatom perspectives/P. Shukla. 48. Further chemotaxonomical studies of charophyta from Tamilnadu/D. Subramanian. 49. Survey of cyanobacterial flora in the southern east coast of India/G. Subramanian, M. Sundararaman, N. Thajauddin, D. Prabaharan & S. Sekar. 50. Abundance of Navicula in Ganga waters/S.K. Tripathi, P. Gupta and V. Tiwari. 51. A contribution to phyco-ecosystem of Nawabganj lake, Unnao, India/A.K. Tripathi & S.N. Pandey. 52. Studies on algae of polluted ponds of Kanpur [India]. IX. Effect of chloride on algal growth/A.K. Tripathi & S.N. Pandey. 53. Algal extract of Cladophora glomerata as promotor rof germination and tube elognation of vinca rosea pollen/P.S. Trivedi & K.P. Kamthan. 54. Colchicine effects on algae : a resume/Vidyavati.

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