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https://hdl.handle.net/2440/27927
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Type: | Journal article |
Title: | The effect of fungicides on vesicular-arbuscular mycorrhizal symbiosis. II. The effects on area of interface and efficiency of P uptake and transfer to plant |
Author: | Sukarno, N. Smith, F. Smith, S. Scott, E. |
Citation: | New Phytologist, 1996; 132(4):583-592 |
Publisher: | CAMBRIDGE UNIV PRESS |
Issue Date: | 1996 |
ISSN: | 0028-646X 1469-8137 |
Statement of Responsibility: | N. Sukarno, F. A. Smith, S. E. Smith, E. S. Scott |
Abstract: | Two experiments were conducted under controlled environmental conditions to determine the effects of the three fungicides, Benlate®. Aliette® and Ridomil®, on efficiency of P uptake from the soil and transfer across the living plant-fungal interface- of onion plants (Allium cepa L.) associated with Glomus sp. 'City Beach' (WUM 16), P applied to the soil did not apparently increase the rate of transfer (flux) of P to the plant via the fungal partner of the mytorrhiza. Benlate reduced P inflow and transfer across the interface in one of the experiments. The rate of P uptake per m living external hyphae was not affected but, as development of living external hyphae in the soil was reduced, the contribution of the fungus to P uptake was small. Aliette reduced growth of both shoots and roots, but apparently increased the accumulation of P in the tissues compared with controls. Ridomil reduced P inflow per m of root and P uptake per m living external hyphae, hut had no effect on the rate of P transfer across the interface. This led to a reduction in the overall contribution of the fungus to P nutrition. |
Keywords: | P inflow P flux Allium cepa Glomus sp. 'City Beach' fungicide |
DOI: | 10.1111/j.1469-8137.1996.tb01877.x |
Published version: | http://dx.doi.org/10.1111/j.1469-8137.1996.tb01877.x |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 6 |
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