Abstract
The numbers of infectious propagules of indigenous vesicular-arbuscular mycorrhizal (VAM) fungi were determined at different stages of the rice-based cropping systems in two irrigated rice fields of varying strata and in a rainfed field. The most-probable-number method was used to estimate the infective VAM fungal population.
On the irrigated farms the mycorrhizal inoculum was consistently less in the poorly drained low-lying field with a rice-rice cropping pattern than in the field in the better-drained upper stratum with a rice-corn-mung-bean pattern. The population of infective VAM fungi was generally low after the wet season rice crop when the field was inundated for a long period, increased during fallow in the presence of weeds, and was highest upon the maturity of the dry-season corn or rice crop. In the rainfed area the highest endophytic population was found at maturity of the mungbean crop and the lowest after land preparation prior to rice seeding.
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References
Black R and Tinker P B 1979 The development of endomycorrhizal root systems. II. Effect of agronomic factors and soil conditions on the development of vesicular-arbuscular mycorrhizal infection in barley and on the endophyte spore density. New Phytol. 83, 401–413.
Carling D E, Brown M F and Brown R A 1979 Colonization rates and growth responses of soybeanGlycine max plants infected by vesicular-arbuscular mycorrhizal fungi. Can. J. Bot. 57, 1769–1772.
Cochran W G 1950 Estimation of bacterial densities by means of the “most probable number” Biometrics 6, 105–116.
Daft M J and Nicolson T H 1969 Effect of Endogone mycorrhiza on plant growth. III. Influence of inoculum concentration on growth and infection in tomato. New Phytol. 68, 953–963.
Gerdemann J W and Nicolson T H 1963 Spores of mycorrhizal Endogone species extracted from soil by wet sieving and decanting. Trans. Br. Mycol. Soc. 46, 235–244.
Gould A B and Liberta A E 1981 Effects of topsoil storage during surface mining on the viability of vesicular-arbuscular mycorrhiza. Mycologia 73, 914–922.
Hayman D S 1983 The physiology of vesicular-arbuscular endomycorrhizal symbiosis. Can. J. Bot. 61, 944–963.
Hetrick B A D 1984 Ecology of VA mycorrhizal fungi.In VA Mycorrhiza. Eds. C Ll Powell and D J Bagyaraj pp 35–56, CRC Press, Florida.
Hussey R S and Roncadori R W 1980 Influence ofAphelencoides avenae on vesicular-arbuscular endomycorrhizal growth response. J. Nematol. 13, 48–52.
Koske R E 1981Gigaspora gigantea: observations on spore germination of a VA-mycorrhizal fungus. Mycologia 73, 288–300.
Le Tacon F, Skinner F A and Mosse B 1983 Spore germination and hyphal growth of a vesicular-arbuscular mycorrhizal fungus,Glomus mosseae (Gerdemann and Trappe) under decreased oxygen and increased carbon dioxide concentrations. Can. J. Microbiol. 29, 1280–1285.
Menge J A 1983 Utilization of vesicular-arbuscular mycorrhizal fungi in agriculture. Can. J. Bot. 61, 1015–1024.
Moore J C, St John T V and Coleman D C 1985 Ingestion of vesicular-arbuscular mycorrhizal hyphae and spores by soil microarthropods. Ecology 66, 1979–1981.
Philipps J M and 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, 158–161.
Porter W M 1979 The ‘most probable number’ method for enumerating infective propagules of vesicular-arbuscular mycorrhizal fungi in soil. Aust. J. Soil Res. 17, 515–519.
Riffle J W 1971 Effect of nematodes on root-inhabiting fungi.In Mycorrhizae, Proc. 1st NACOM, Ed. E Hacks-kaylo, April 1969, Misc. Publ. 1189, USDA, Wash. D.C., 97–113.
St John T V and Coleman D C 1983 The role of mycorrhizae in plant ecology. Can. J. Bot. 61, 1005–1014.
Taber R A 1982a. Occurrence of Glomus spores in weed seeds in soil. Mycologia 74, 515–520.
Taber R A 1982b Gigaspora spores and associated hyperparasites in weed seeds in soil. Mycologia 74, 1026–1031.
Trappe J M 1982 Synoptic keys to the genera and species of zygomycetous mycorrhizal fungi. Phytophathology 72, 1102–1108.
Warnock A J, Fitter A H and Usher M B 1982 The influence of a springtailFolsomia candida (Insecta, Collembola) on the mycorrhizal association of leekAllium porrum and the vesicular-arbuscular mycorrhizal endophyteGlomus fasciculatus. New Phytol. 90, 285–292.
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Ilag, L.L., Rosales, A.M., Elazegui, F.A. et al. Changes in the population of infective endomycorrhizal fungi in a rice-based cropping system. Plant Soil 103, 67–73 (1987). https://doi.org/10.1007/BF02370669
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DOI: https://doi.org/10.1007/BF02370669