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https://hdl.handle.net/2440/64650
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Type: | Journal article |
Title: | Variation in seedling growth of 11 perennial legumes in response to phosphorus supply |
Author: | Pang, J. Tibbett, M. Denton, M. Lambers, H. Siddique, K. Bolland, M. Revell, C. Ryan, M. |
Citation: | Plant and Soil: international journal on plant-soil relationships, 2010; 328(1):133-143 |
Publisher: | Kluwer Academic Publ |
Issue Date: | 2010 |
ISSN: | 0032-079X 1573-5036 |
Statement of Responsibility: | Jiayin Pang, Mark Tibbett, Matthew D. Denton, Hans Lambers, Kadambot H. M. Siddique, Mike D. A. Bolland, Clinton K. Revell, Megan H. Ryan |
Abstract: | Phosphorus (P) deficiency is a major problem for Australian agriculture. Development of new perennial pasture legumes that acquire or use P more efficiently than the current major perennial pasture legume, lucerne (Medicago sativa L.), is urgent. A glasshouse experiment compared the response of ten perennial herbaceous legume species to a series of P supplies ranging from 0 to 384 µg g⁻¹ soil, with lucerne as the control. Under low-P conditions, several legumes produced more biomass than lucerne. Four species (Lotononis bainesii Baker, Kennedia prorepens F.Muell, K. prostrata R.Br, Bituminaria bituminosa (L.) C.H.Stirt) achieved maximum growth at 12 µg P g⁻¹ soil, while other species required 24 µg P g⁻¹. In most tested legumes, biomass production was reduced when P supply was ≥192 µg g⁻¹, due to P toxicity, while L. bainesii and K. prorepens showed reduced biomass when P was ≥24 µg g⁻¹ and K. prostrata at ≥48 µg P g⁻¹ soil. B. bituminosa and Glycine canescens F.J.Herm required less soil P to achieve 0.5 g dry mass than the other species did. Lucerne performed poorly with low P supply and our results suggest that some novel perennial legumes may perform better on low-P soils. |
Keywords: | Perennial herbaceous legumes P stress P toxicity P accumulation P-use efficiency Native Australian legumes |
Rights: | © Springer Science + Business Media B.V. 2009 |
DOI: | 10.1007/s11104-009-0088-9 |
Published version: | http://dx.doi.org/10.1007/s11104-009-0088-9 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 5 |
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