Personal Profile Page

Professor Oluwole OSONUBI B.Sc., (Ife), Ph.D. (Lancaster, U.K.) 

Area of Specialisation

ENVIRONMENTAL PLANT PHYSIOLOGY & SOIL MICROBIOLOGY 

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Current Publications

(a) Books:

1. Osonubi, O. and Chukwuka K. S. (1999). Basic Principles of Botany, Nerves Inc., Ibadan, Nigeria, 149p.

 

(b) Effects of water stress on the growth and physiology of woody plants and some agricultural crops

2. Osonubi, O and Davies, W. J (1978). Solute accumulation in leaves and roots of woody plants subjected to water stress. Oecologia (Berlin), 32, 323- 332.

 

3. Sharp, R.E., Osonubi, O., Wood, W.A. and Davies, W.J. 1979. A simple instrument for measuring leaf extension in grasses, and its application in the study of the effects of water stress on maize and sorghum. Annals of Botany, 44, 33 - 45.

 

4. Wood, W.A., Osonubi, O., Sharp, R.E. and Davies, W.J. (1979). A simple device for measuring the effects of plant water stress on the growth of grass leaves. School Science Review, 60, 511 -515.

 

5. Davies, W.J. Wilson, J.A. Sharp, R.E., Osonubi, O. (1980) Control of stomatal behaviour in water - stressed plants. In: Stomatal Physiology (P.G. Jarvis and T.A. Mansfield eds.). Proceedings of the Society for Experimental Biology Seminar. University Press, Cambridge, Vol. 8, pp. 163-185.

 

6. Osonubi, O. and Davies, W.J. (1980). The influence of water stress on photosynthetic performance and stomatal behaviour of tree seedlings subjected to variation in temperature and irradiance. Oecologia (Berlin) 45, 3 - 10.

 

7. Osonubi, O. and Davies, W.J. (1980). The influence of plant water stress on stomatal control of gas exchange at different levels of atmospheric humidity. Oecologia (Berlin), 46, 1 - 6.

 

8. Osonubi, O. and Davies, W.J. (1981). Root growth and water relations of oak and birch seedlings. Oecologia (Berlin), 51, 343 - 350.

 

9. Osonubi, O. 1984. Effect of water stress on leaf and root growth, and water uptake of Gmelina arborea Roxb seedlings. Biologia Plantarum 26, 246-252.

 

10. Osonubi, O., Fasehun, F.E. and Fasidi, I.O. (1985). The influence of soil drought and partial water logging on water relations of Gmelina arborea seedlings. Oecologia (Berlin), 66, 126 - 131.

 

11. Osonubi, O. (1985). Responses of cowpea (Vigna unguiculata (L.) Walp). to progressive soil drought. Oecologia (Berlin), 66, 554 - 557.

 

12. Osonubi, O. and Fasehun, F.E. (1987). Adaptations to soil drying in woody seedlings of African locust bean, Parkia biglobosa (Jacq) Benth. Tree Physiology, 3, 321 - 330.

 

13. Osonubi, O., Oren, R., Werk, K.S., Schulze, E.D. and Heilmeier, H. (1988). Performance of Picea abies (L.) Karst at different stages of decline. IV. Xylem sap concentrations of magnesium, calcium, potassium and nitrogen. Oecologia (Berlin), 77, 1 - 6.

 

 

(c) Basis for flood tolerance in woody plantation species
14. Osonubi, O., and Osundina, M.A. (1983). Physiological responses of Gmelina arborea (Roxb) seedlings and cuttings during and after flooding. Nigerian Journal of Forestry, 13, 11-17.

 

 

15. Osonubi, O., and Osundina, M.A. (1987). Stomatal responses of woody seedlings to flooding in relation to nutrient status in leaves. Journal of Experimental Botany, 38, 1166 - 1173.

 

16. Osonubi, O. and Osundina. M.A. (1987). Comparison of the responses to flooding of seedlings and cuttings of Gmelina. Tree Physiology 3, 147-156.

 

17. Osundina, M.A. and Osonubi, O. (1989). Adventitious roots, leaf abscission and nutrient status of flooded Gmelina and Tectona seedlings. Tree Physiology, 5, 473-483.

 

18. Osundina, M.A. and Osonubi, O. (1992). Influence of flooding on mineral nutrient and metabolic changes in seedlings of some woody plant species. Nigerian Journal of Botany. 5, 161 - 171.

 

19. Okon, I.E., Osundina, M.A. and Osonubi, O. (1994). Leaf abscission in flowering plants. Journal of Science Research 1, 76-82.

20. Okon, I. E. and Osonubi, O. (1988). Comparative growth, water and nutrient relations of Mycorrhizal and non-mycorrhizal Gmelina seedlings subjected to soil drying. In: The role of forestry in combating ecological disasters (ed. G. O. B. Dada). Proceedings of the Forestry Association of Nigeria Conference, pp. 129 – 132.

 

21. Osonubi, O., (1989). Osmotic adjustment in mycorrhizal Gmelina arborea Roxb. Seedlings. Functional Ecology, 3, 143 – 151.

 

22. Osonubi, O., Okon, I. E. and T. A. Bamiduro, (1990). Effect of different fungal inoculation periods on performance of Gmelina seedlings under dry soil conditions. Forest Ecology and Management 37, 223 – 232.

Collaboration with International organizations (IITA, AFNETA, AAS) for multi-disciplinary research

 

 

(d) Drought-stress and mycorrhizal symbiosis.
23. Osonubi, O., Mulongoy, K., (1991). Responses of two Acacia species to drought and Inoculation with an ectomycorrhizal fungus. In: The Rhizosphere and Plant Growth. (D. L. Keister and P. B. Cregan, eds.). Kluwer Publishers, Netherlands, p. 375.

 

 

24. Osonubi, O., Mulongoy, K., Awotoye, O.O., Atayese, M.O. and Okali, D.U.U. (1991). Effects of ectomycorrhizal and vesicular - arbuscular mycorrhizal fungi on drought tolerance of four leguminous woody seedlings. Plant and Soil. 136, 131 - 143.

 

25. Awotoye, O.O., Atayese, M.O., Osonubi, O., Mulongoy, K. and Okali, D.U.U. (1992). Response of some tropical nitrogen - fixing woody legumes to drought and inoculation with mycorrhiza. In: Biological Nitrogen Fixation and Sustainability of Tropical Agriculture (K. Mulongoy, M. Gueye and D.S.C. Spencer eds.). Wiley - Sayce Co - Publication, pp 67 - 77.

 

26. Osonubi, O., Bakare, O.N. and Mulongoy, K. (1992). Interactions between drought - stress and VA mycorrhiza on the growth of Faidherbia albida (syn Acacia albida) and Acacia nilotica in sterile and non-sterile soils. Biology and Fertility of Soils 14, 159-165.

 

27. Osonubi.O. (1994). Comparative effects of vesicular - arbuscular mycorrhizal inoculation and phosphorous fertilization on growth and phosphorous uptake of maize (Zea mays L.) and sorghum (Sorghum bicolor L.) plants under drought stressed conditions. Biology and Fertility of Soils 18, 55-59.

 

 

(e) Evaluation of woody legumes and food crops for yields, nutrients and water relations under agroforestry systems with mycorrhizal symbiosis.

28. Osonubi, O., Awotoye, O.O., Atayese, M.O., and Fagbola, O. (1991). Assessment of response of hedgerow trees to vesicular-arbuscular mycorrhizal (VAM) inoculations in alley farming. AFNETAN Newsletter 3, p 6.

 

 

29. Osiru, D.S.O., Hahn, S.K. and Osonubi, O. (1992). Varietal response to drought stress in cassava. In: Tropical root crops (M.O. Akoroda and O.B. Arene, eds), International Society for Tropical Root Crops (ISTRC), IITA, Ibadan, Nigeria, pp. 97-102.

 

30. Mulongoy, K., Ibewiro, E.B., Oseni, O., Kilumba, N., Opara-Nadi, A.O., and Osonubi, O. (1993). Effect of management practices on alley-cropped maize utilization of nitrogen derived from prunings on a degraded Alfisol in south-western Nigeria. In: Soil Organic Matter Dynamics and Sustainability of Tropical Agriculture (K. Mulongoy and R. Merckx eds.). John Wiley & Sons, Chichester, New York, pp 223 -230.

 

31. Atayese, M.O. Awotoye, O.O. Osonubi, O., and Mulongoy, K. (1993). Comparisons of the influence of vesicular - arbuscular mycorrhiza on the productivity of hedgerow woody legumes and cassava at the top and the base of a hill slope under alley cropping systems. Biology and Fertility of Soils 16, 198-204.

 

32. Osonubi, O., Atayese, M.O. and Awotoye, O.O. (1994). Improving root yield of alley-cropped cassava with mycorrhizal symbiosis in a degraded hill slope of an alfisol. AFNETAN Newsletter 6, 4-5.

 

33. Osiru, D.S.O., Osonubi, O and Hahn, S.K. (1994). Mechanisms of drought tolerance in cassava. African Crop Science Journal 2, 233-246.

 

34. Osonubi, O. Atayese, M.O. and Mulongoy, K. (1995). The effect of vesicular-arbuscular mycorrhizal inoculation on nutrient uptake and yield of alley-cropped cassava in a degraded Alfisol of southwestern Nigeria. Biology and Fertility of Soils, 20, 70-76.

 

35. Fagbola, O., Awotoye, O.O., Atayese, M.O., Osonubi, O. and Mulongoy, K. (1995). The role of vesicular arbuscular-mycorrhiza (VAM) fungi in alley cropping. In: Alley Farming Research and Development (B.T. Kang, A.O. Osiname and A. Larbi eds), Intec Printers Ltd, Ibadan, Nigeria. pp 203-210.

 

36. Odebode, A.C., Ladoye, A.O., Osonubi, O. (1995). Influence of vesicular-arbuscular mycorrhizal fungi on disease severity of pepper and tomato caused by Sclerotium rolfsii. Journal of Science Research 2, 49-52.

 

37. Osonubi, O. (1996). Sustaining the developing cocoa pods with nitrogen fixing tree prunings and mycorrhizal inoculation. In: Cocoa Revolution in Nigeria (A.J. Adegeye and W.O. Ajayi eds), Hiswill Inforesources Management Limited, Ibadan, Nigeria pp. 34-37.

 

38. Fagbola, O., Osonubi, O. and Mulongoy, K. (1995). Contribution of two legume species and their mixture to the nutrient uptake of cassava under the influence of VAMF in an alley cropping system. Proceedings of 3rd African Soil Science Society Conference, 1995. Ibadan Nigeria (A. A. Agboola et al. Eds.) Secre-Print Nig. Ltd. 533-537.

 

39. Okon, I.E., Osonubi, O. and Sanginga, N. (1996). Vesicular-arbuscular mycorrhiza effects on Gliricidia sepium and Senna siamea in a fallowed alley cropping system. Agroforestry Systems, 33, 165-175.

40. Fagbola, O., Osonubi, O. and Mulongoy, K. (1998). Contribution of arbuscular mycorrhizal (AM) fungi and hedgerow trees to the yield and nutrient uptake of cassava in an alley-cropping system. Journal of Agricultural Science (Cambridge), 131, 79-85.

41. Fagbola, O., Osonubi, O. and mulongoy, K. (1998). Growth of cassava cultivar (TMS) 30572 as affected by alley-cropping and mycorrhizal inoculation. Biology and Fertility of Soils, 27, 9-14.

 

42. Odebode, A. C., Ladoye, A. O., Osonubi, O. (1997). Effect of Pythium aphanidermatum and the arbuscular mycorrhizal fungus (Glomus deserticola) on disease severity and growth of pepper. International Journal of Tropical Diseases, 15, 85-92.

 

43. Osonubi, O. (1999). Botany beyond conventional agriculture. An inaugural lecture delivered at the University of Ibadan, Ibadan, Nigeria. ISBN: 978–131- 204-4.

 

44. Salami, A. O. and Osonubi, O. (1999). Introducing mycorrhizal biotechnology to peasant farmers in Nigeria: Many problems and several possibilities. J. Science Res. 5, 51 – 55.

 

45. Osonubi, O. (2000). Soil rehabilitation strategy for the Niger-Delta Wetlands. In: Proceedings of the International Conference on conservation issues and innovative initiatives for the sustainability of the Niger-Delta Wetlands. (Eds. C. J. Okolo, et. Al.), International Institute for Environmental Research, Warri, 53 – 57pp.

 

46. Taiwo, L. B., Osonubi, O. and Salau, M. (2000). Growth and nodulation of Cowpea (Vigna unguiculata) to compost application and inoculation with Glomus mosseae and Bradyrhi-zobium. Journal of Agriculture and Environment for International Development 94. 21–34.

 

47. Fagbola, O., Osonubi, O., Mulongoy, K. and Odunfa, S. A (2001). Effects of drought stress and Arbuscular mycorrhizal on the growth of Gliricidia sepium (Jacq.) Walp. And Leucaena leucocephala (Lam). De wit. In: simulated eroded soil conditions. Mycorrhiza. 11, 215-223.

 

48. Odebode, A. C., Salami, A. O.; and Osonubi, O. (2001). Production of cell wall enzymes in pepper seedlings, inoculated with arbuscular mycorrhiza Glomus etunicatum. Tanzania Journal of Science 27, 1 – 8.

49. Salami, A. O. Odebode, A. C. and Osonubi, O. (2001). Interactions of soil microorganisms on growth and disease incidence of pepper (Capsicum annum). Arch. Acker. Pfl. Boden 46, 485 – 492.

 

50. Odebode, A. C., Salami, A. O., and Osonubi, O. (2001). Oxidative enzymes activities of mycorrhizal inoculated pepper plant infected with Pytophthora infestans. Arch. Phytopath Pflanz 33, 473 – 480.

 

51. Verinumbe, M. T., Okali, D. U. U., and Osonubi, O. (2001). The effect of arbuscular mycorrhizal fungi (AMF) from indigenous tree species on the growth and nutrient uptake by major cereals in semi-arid soils. Journal of Arid Agriculture 11, 33-40. 

 

52. Atayese, M. O. Osonubi, O., and Mulongoy, K. (2002). Biomass response of three AM Fungal inoculated hedgerow legumes to pruning regimes in alley cropping system. Asset Series A2: 23-32.

 

53. Salami, A. O. and Osonubi, O. (2002). Improving the traditional land-use system through agro-biotechnology: a case of adoption of vesicular-arbiscular mycorrhizal (VAM) by resource-poor farmers in Nigeria. Technovation. 22, 725-730.

 

 

54. Verinumbe, M. T., Okali, D. U. U. and Osonubi, O. (2002). Preparation of single (pure) spore cultures of arbuscular mycorrhizal fungi (AMF) from semi-arid soils sof Borno State, Nigeria. Nigerian Journal of Experimental and Applied Biology 3, 269 – 274

.

55. Verinumbe, M. T., Okali, D. U. U. and Osonubi, O. (2002). Arbuscular mycorrhizal fungal (AMF) spores associated with Faidherbia albida and Balanites aegyptiaca in semi-arid soils, north-eastern Nigeria. Nigerian Journal of Experimental and Applied Biology 3, 295-302.

 

56. Oyetunji, O. J., Osonubi, O. and Ekanayake, I. J., 2003. Contributions of an alley cropping system and AM fungi to maize productivity under cassava intercrop in the derived savannah zone. Journal of Agricultural Science (Cambridge) 140, 311 – 316.

 

57. Nwoke, O. C., Vanlauwe, B., Diels, J., Sanginga, N. and Osonubi, O. (2001). Impact of soil characteristics on P availability to maize in the West African moist savanna zone. African Crop Science Conference Proceedings 5, 933 – 938.

 

58. Oyetunji, O. J., Ekanayake, I. J. and Osonubi, O. (2001). Influence of VAM fungi on cassava-maize intercrop in an alley cropping system. African Crop Science Conference Proceedings 5, 1079 – 1083.

 

59. Oyetunji, O. J., Ekanayake, I. J. and Osonubi, O. (2003). The influence of arbuscular mycorrhizae fungus, mulch and fertilizer application on the yield of yams in an agroforestry system in South-Western Nigeria. Muriak Bulletin 6, 75 – 82.

 

60. Oyetunji, O. J., Osonubi, O. and Ekanayake, I. J. (2003). The vegetative growth and yield response of two cassava clones to Glomus fasciculatum inoculation in semi-controlled conditions. African Journal of Root and Tuber Crops 5: 52 – 55.

 

61. Salami, A. Olusola and Osonubi, O. (2003) Influence of mycorrhizal inoculation and different pruning regimes on fresh root yield of alley and sole cropped cassava (Manihot esculenta Crantz) in Nigeria. Archives of Agronomy and Soil Science 49, 317 – 323.

 

62. Oyetunji, O. J., Ekanayake, I. J. and Osonubi, O. (2003). The influence of arbuscular Mycorrhizal fungus, mulch and fertilizer applications on the yield of yams in an agroforestry system in South Western Nigeria. MUARIK Bulletin 6: 75 – 82

 

63. Oyetunji, O. J., Ekanayake, I. J. and Osonubi, O. (2003). Studies of the influence of VAM fungi on growth of maize intercropped with cassava in alley cropping system in the derived savanna zone. Proceedings of the 8th Triennial Symposium of the International Society for Tropical Root Crops Africa Branch 9USTRC-AB); pp. 324-329, 12 – 16 November, 2001, Ibadan.

 

64. Nwoke, O. C., Vanlauwe, B., Diels, J. Sanginga, N., Osonubi, O. and Merckx (2003). Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils. Agriculture, Ecosystems and Environment 100, 285 – 294.

 

65. Nwoke, O. C., Vanlauwe, B., Diels, J., Sanginga, N. and Osonubi, O. (2004). The distribution of phosphorus fractions and desorption characteristics of some soils in the moist savanna zone of West Africa. Nutrient Cycling in Agroecosystems 69, 127 – 141.

 

66. Nwoke, O. C., Vanlauwe, B., Diels, J., Sanginga, N. and Osonubi, O. (2004). Impact of residue characteristics on phosphorus availability in West African Sonibare moist savanna soils. Biology & Fertility soils 39, 422 – 428. M. A., and Osonubi, O. 2004. Degree of root infection in three Glomus species of vesicular arbuscular mycorrhizal fungi in relation to maize (Zea mays L.) growth. Science Focus 7: 131 – 136.

 

67. Sonibare, M.A., and Osonubi, O. (2004). Degree of root infection in three Glomus species of vesicular arbuscular mycorrhizal fungi in relation to maize (Zea mays L.) growth. Science Focus 7: 131-136.

 

68. Ekanayake, I. J., Oyetunji, O. J., Osonubi, O. and Lyasse, O. (2004). The effects of arbuscular mycorrhizal fungi and water stress on leaf chlorophyll production of cassava (Manihot esculenta Grantz). Food, Agriculture and Environment 2: 190 – 196

.

69. Fagbola, O. Oyetunji, O. J., Osonubi, O. and Mulongoy, K. (2005). Greenhouse evaluation of two woody hedgerowa as affected by arbuscular mycorrhizal fungus (AMF), soil quality and moisture. Archives of Agronomy and Soil Science. 51(3): 335 – 349.

 

70. Salami, A. O., Odebode, A.C. and Osonubi, O. (2005). The use of arbuscular mycorrhiza mycorrhiza (AM) as a source of yield increase in sustainable alley cropping system. Archives of Agronomy and Soil Science 51(4): 385-390.

 

71. Oyetunji, O.J. and Osonubi, O. (2005). Influence of arbuscular mycorrhizae on the performance of chilli (Bell) pepper (Capsicum annum L.). Journal of Applied Horticulture 7(2): 133-136.

 

72. Salami, A.O. and Osonubi, O. (2005). Growth and yield of maize and cassava cultivars as affected by mycorrhizal inoculation and alley cropping regime. Tropical Agriculture 81 (In press).

 

Technical Papers
73. Osonubi, O. (1996). Afforestation strategy for the Niger-Delta zone: Forcados Terminal as Case study, 20p.

 

74. Chukwuka, S. K., Ayodele, A. E. and Osonubi, O. (1996). Environmental impact assessment of the vegetation around Doyin Industries at Agbara in OPIC Estate, 16p.

 

75. Osonubi, O. (1997). Participatory rural appraisal for mycorrhizal technology in agroforestry, Other farming systems and fodder production adoption in Oyo and Osun States, 78p.

 

76. Osonubi, O. (1997). Establishment of erosion control grass (Vetivera nigritana) in the Forcados beach slope, 18p.

 

77. Osonubi, O. (1997). Environmental impact assessment of the vegetation along Nigerian Gas Company (NGC) pipeline to NNPC and SPDC estates in Warri, Delta State, 14p.

 

78. Osonubi, O. (1999). Development of mycorrhizal technology to enhance sustainability in Agroforestry and fodder production systems. Research report funded by National Agricultural Research Project (NARP), world bank assisted, Nigeria (RGS 006), 51p.

 

79. Osonubi, O. (2000). Impact Study of Idoho-Quit Mobil Oil Spill on the Habitats of Aiyetoro Community.