Establishment of associative N2-fixing systems

Schank, S.C. and Smith, R.L. and Littell, R.C. (1983) Establishment of associative N2-fixing systems. Proceedings - Soil and Crop Science Society of Florida, 42. pp. 113-117.

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Monoxenic root/bacteria associations were initiated in test tubes containing agar medium free of N and carbohydrates. Seedlings of sorghum cv. Savanna-5, Coker 7723, B68181, B68027 and FS 25a were inoculated with a bacterial strain (Enterobacter agglomerans S85-9 or 1 of 3 strains of Azospirillum brasilense). Active acetylene reduction activity was observed in all inoculated plants; no ethylene was evolved in non-inoculated controls. When plants and intact agar-root systems were transferred to autoclaved soil, activity was not significantly different from natural (non-autoclaved) soil from Madison and Putnam counties, Florida. When moved into the field, inoculated treatments again were not signficantly different in acetylene reduction assays from natural soil

Item Type: Article
Author Affiliation: Department of Agronomy, Florida Uiversity, Gainesville, FL 32611, USA
Subjects: Soil Science and Microbiology > Soil Sciences
Divisions: Other Crops
Depositing User: Ms K Syamalamba
Date Deposited: 22 Nov 2012 03:18
Last Modified: 22 Nov 2012 03:18

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