Effects of aluminium on nodulation and early growth of four tropical pasture legumes

Murphy H.E., Edwards D.G. and Asher C.J. (1984) Effects of aluminium on nodulation and early growth of four tropical pasture legumes. Australian Journal of Agricultural Research, 35 5: 663-673. doi:10.1071/AR9840663


Author Murphy H.E.
Edwards D.G.
Asher C.J.
Title Effects of aluminium on nodulation and early growth of four tropical pasture legumes
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1984-01-01
Sub-type Article (original research)
DOI 10.1071/AR9840663
Volume 35
Issue 5
Start page 663
End page 673
Total pages 11
Subject 1100 Agricultural and Biological Sciences
Abstract Effects of aluminium concentrations of 0, 12.5, 25, 50, 100 or 125 µM on the nodulation and growth of Centrosema pubescens cv. Belalto, Macroptilium lathyroides cv. Murray, Stylosanthes guianensis cv. Schofield and Stylosanthes guianensis cv. Oxley were studied in solution cultures maintained at pH 4.5. The strains of Rhizobium used were CB1923, CB756, CB756 and CB1650 respectively. Solutions containing >25 µM aluminium (Al) delayed the appearance of nodules and reduced the percentage of plants which nodulated and the number and dry weight of nodules produced by all four legumes. At 125 µM Al, the proportion of plants which nodulated ranked in the order M. lathyroides (42%) > C. pubescens (29%) > Schofield stylo (16%) > Oxley stylo (0%). However, there were no significant effects of Al on dry matter production in M. lathyroides or C. pubescens. In Schofield stylo ≥50 µM A1 caused a small but significant yield reduction. In Oxley stylo, the yield reduction was significant at 25 µM, but became large only at 125 µM. It is concluded that in M. lathyroides, C. pubescens, and possibly Schofield stylo, nodulation is more sensitive to aluminium toxicity than is host plant growth. In Oxley stylo, threshold concentrations were similar for significant effects of aluminium toxicity on nodulation and growth.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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