• Aung, L. H. (1974). Root shoot relationship. In : The Plant Root and its Environment (Ed. by E. W. Carson), pp. 2961. University Press of Virginia, Charlottesville .
  • Gadgil, P. D. (1972). Effect of waterlogging on mycorrhizas of radiata pine and Douglas fir. New Zealand Journal of Forestry Science, 2, 222226.
  • Graw D., Moawad, M. & Rehm, S. (1979). Untersuchungen zur Wirts- und Wirkungsspezifität der VA-Mykorrhiza. Z. Acker- und Pflanzenbau, 148, 8598.
  • Harley, J. L. (1969). The Biology of Mycorrhiza, 2nd edn, 334 pp. Leonard Hill, London .
  • Ivens, G. W. (1974). The problem of Eupatorium odoratum L. in Nigeria. PANS, 20, 7682.
  • Koch, H. (1961). Untersuchungen über die Mykorrhiza der Kulturpflanzen unter besonderer Berücksichtigung von Althea officinalis L., Atropa belladonna L., Helianthus annuus L. und Solanum lycopersicutn L. Gartenbauwissenschaft, 26, 532.
  • Lonergan, J. F. (1979). The interface in relation to root function and growth. In: The Soil-root Interface (Ed. by J. L. Harley & R. S. Russel), pp. 351367. Academic Press, New York and London .
  • Mosse, B. (1973). Advances in the study of vesicular-arbuscular mycorrhiza. Annual Review of Phytopathology, 11, 171196.
  • Phillips, J. M. & Hayman, D. S. (1970). Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection. Transactions of the British Mycological Society, 55, 158161.
  • Read, D. J. & Armstrong, W. (1972). A relationship between oxygen transport and the formation of the ectomycorrhizal sheath in conifer seedlings. New Phytologist, 71, 4953.
  • Saif, S. R. (1977). The influence of stage of host development on vesicular-arbuscular mycorrhizae and endogonaceous spore population in field-grown vegetable crops. I. Summer grown crops. New Phytologist, 79, 341348.
  • Sanders, F. E., Mosse, B. & Tinker, P. B. (1975). Endomycorrhizas, pp. 495625. Academic Press, New York and London .
  • Slankis, V. (1974). Soil factors influencing formation of mycorrhizae. Annual Review of Phytopathology, 12, 437457.
  • Stolzy, L. H. (1974). Soil atmosphere. In: The Plant Root and its Environment (Ed. by E. W. Carson), pp. 335361. University Press of Virginia, Charlottesville .
  • Theodorou, C. (1978). Soil moisture and the mycorrhizal association of Pinus radiata D. Don. Soil Biology and Biochemistry, 10, 3337.