• Baylis, G. T. S. (1967). Experiments on the ecological significance of phycomycetous mycorrhizas. New Phytol., 66, 231.
  • Björkman, E. (1970). Forest tree mycorrhiza-the conditions for its formation and the significance for tree growth and afforestation. Pl. Soil, 32, 589.
  • Boullakd, B. (1957). Premières observations concernant l'influence du photopériodisme sur la formation des mycorrhizes. Mém. Soc. Sci. nat. math. Cherbourg, 48, 1.
  • Boullard, B. (1959). Relations entre la photopériode et l'abondance des mycorrhizes chez l'Aster tripolium L. (Composées). Bull. Soc. bot. Fr., 106, 131.
  • Butt, A. M. (1968). Vegetative growth, morphogenesis and carbohydrate content of the onion Plant as a function of light and temperature under field and controlled conditions. Meded. LandbHoogesch. Wageningen, No. 6810.
  • Clegg, K. M. (1956). The application of the anthrone reagent to the estimation of starch in cereals. J. Sci. Fd Agric, 7, 40.
  • Daft, M. J. & Nicolson, T. H. (1972). Effect of Endogone mycorrhiza on Plant growth. IV. Quantitative relationships between the growth of the host and the development of the endophyte in tomato and maize. New Phytol., 71, 287.
  • Dominik, T., Nespiak, A. & Pachlewski, R. (1954). Badanie mikotrofizmu zespolow roslinnych regla gornego w Tatrach (Investigations on the mycotrophy of Plant associations in the upper pine forest regions of the Tatra mountains). Acta Soc. Bat. Pol., 23, 487.
  • Foster, R. E. & Walker, J. C. (1947). Predisposition of tomato to Fusarium wilt. J. agric. Res., 74, 165.
  • Harley, J. L. (1969). The Biology of Mycorrhiza. Leonard Hill, London .
  • Hayman, D. S. & Mosse, B. (1971). Plant growth responses to vesicular-arbuscular mycorrhiza. L Growth of Endogone-inoculated Plants in phosphate-deficient soils. New Phytol., 70, 19.
  • Jones, D. I. H. (1962). Note on the pre-treatment of herbage samples for determination of soluble carbohydrate constituents. J Sci. Fd Agric, 13, 83.
  • Link, P. K. (1925). Effects of the method of dessication on the carbohydrates of plant tissue. J Am. chem. Soc. 47, 470.
  • Meloh, K. A. (1963). Untersuchungen zur Biologie der endotrophen Mycorrhiza bei Zea mays L. und Avena sativa L. Arch. Mikrobiol., 46, 369.
  • Morris, D. L. (1948). Quantitative determination of carbohydrates with Dreywood's anthrone reagent. Science, N.Y., 107, 254.
  • Mosse, B. & Bowen, G. D. (1968). A key to the recognition of some Endogone spore types. Trans. Br. mycol. Soc., 51, 469.
  • Peuss, H. (1958). Untersuchungen zur Ökologie und Bedeutung der Tabakmycorrhiza. Arch. Mikrobiol., 29, 112.
  • Peyronel, B. (1940). Prime osservazioni sui rapporti tra luce e simbiosi micorrizica. Lab. Chanousia Giard. Bot. Alpino Piccolo San Bernardo, 4, 1.
  • 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. Trans. Br. mycol. Soc., 55, 158.
  • Salo, M. L. (1965). On the breakdown of sugars during the drying of plant samples and their subsequent dry storage. J scient. agric. Soc, Finland, 37, 186.
  • Schrader, R. (1958). Untersuchungen zur Biologie der Erbsenmycorrhiza. Arch. Mikrobiol., 32, 81.
  • Stakman, E. C. & Harrar, J. G. (1957). Principles of Plant Pathology. Ronald Press. New York .
  • Thomas, C. A. & Allen, E. H. (1971). Light and antifungal polyacetylene compounds in relation to resistance of safflower to Phytophthora drechsleri. Phytopathology, 61, 1459.
  • Tolle, R. (1958). Untersuchungen über die Pseudomycorrhiza von Gramineen. Arch. Mikrobiol, 30, 285.
  • Trevelyan, W. E., Procter, D. P. & Harrison, J. S. (1950). Detection of sugars on paper chromatograms. Nature, Loud., 166, 444.
  • Wilkinson, V. (1970). Light and infection of wheat by Ophiobolus graminis. Trans. Br. mycol. Soc, 54, 331.
  • Winter, A. G. & Meloh, K. A. (1958). Untersuchungen Über den Einfluss der endotrophen Mycorrhiza auf die Entwicklung von Zea mays L. Naturwissenschaften, 45, 319.