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The rhizosphere bacteria in grass-clover associations


, : The rhizosphere bacteria in grass-clover associations. Australian Jour Agric Res 12(6): 1108-1118

A quantitative and qualitative assessment was made of the rhizosphere populations of grass and of clover, growing together in soil, at different levels of nitrogen. The quantitative analysis showed less variation when the results were expressed as numbers of bacteria per gram of root than if they were expressed on a soil weight basis. On a root weight basis grass supported more bacteria than clover, and on a soil weight basis the converse held. The rhizosphere populations of clover and grass increased with increasing nitrogen supply. In the high nitrogen treatments the increase in numbers on grass was due to more vigorous growth, but the high number on the shaded clover plant was probably due to bacteria growing on decomposing root tissue. The qualitative analysis was made on bacterial isolates from the various rhizospheres and showed an abundance of branching bacteria. Only small differences were found between the isolates from clover and grass roots growing under the different conditions.

US$19.90

DOI: 10.1071/AR9611108


Other references

Gadhvi, IR.; Vyas, R., 2002: First record of the dog-faced water snake (Cerberus rynchops) from Saurashtra sea coast of Gujarat State. Cobra (Chennai). July-September; 49: 13-14

Yates, C.; Grana, W.A., 1981: Adaptation of prepubertal children to exercise. Journal of the Oklahoma State Medical Association 74(6): 173-177

Bruce, Robert A., 1967: Cardiovascular function test. Proceedings of a symposium on physical activity and the heart, 27-29 August, 1964, Helsinki, Finland 326-328

Fulton, H., 1901: Descriptions of new species of Xesta, Amphidromus, and Cyclostoma from Madagascar and Perak. Journal of Malacology, VIII 103 & 104

Andreu, A.; de la Rosa, M.; Cabero, L., 1999: Justification of a prevention policy of perinatal disease by group B streptococci (GBS). Recommendations. Enfermedades Infecciosas Y Microbiologia Clinica 17(3): 138-140

Zakharova, L.A.; Karyagina, A.Y.; Popova, N.A.; Khegai, I.I.; Ivanova, L.N., 2001: Humoral immune response in ontogeny of bratleboro rats with hereditary defect of vasopressin synthesis. Doklady Akademii Nauk 376(2): 283-285, January

Watson, P.G.; Duerden, B.I., 1977: Laboratory assessment of physical and chemical methods of preserving urine specimens. Methods (3) of preserving simulated specimens of urine were studied with 6 test strains of bacteria. Viable counts were measured by a surface viable count and by the filter-paper-strip method during a holding period of 72 h. Refrigeration at .appr...

Vingerhoedt, N.M.; Gilles, R.; Howes, J.B.; Griffin, M.; Howes, L.Guy., 2003: Haemodynamic and pulse wave responses to intravenous infusions of angiotensin II during chronic telmisartan therapy in normal volunteers. Journal of the Renin-Angiotensin-Aldosterone System 4(4): 244-248

Wootten V.; Brown D.R.; Williamson N.A., 1988: The effects of orally administered 1 aspartyl 1 phenylalanine on the behavioral patterns of mice at 50 60 and 90 days of age. Teratology 37(5): 524

Earl, L.A.; Falconieri, V.; Milne, J.Ls.; Subramaniam, S., 2017: Cryo-EM: beyond the microscope. The pace at which cryo-EM is being adopted as a mainstream tool in structural biology has continued unabated over the past year. Initial successes in obtaining near-atomic resolution structures with cryo-EM were enabled to a large extent by advanc...