02008naa a2200277 a 450000100080000000500110000800800410001910000190006024501020007926000090018152012060019065000190139665000290141565000090144465000220145365000310147565000090150665000240151565300160153965300150155565300190157065300210158970000220161070000180163277300800165017956601999-05-05 1986 bl --- 0-- u #d1 aKEATING, B. A. aSalt tolerance of some tropical pasture legumes with potential adaptation to cracking clay soils. c1986 aLarge areas of heavy clay soils (vertisols) occur in the subhumid and semi-arid areas of north-eastern Australia, but to date, no satisfactory pasture legumes have been found for these soils. The reasons for the failure of legume species to persist on clay soils have not been defined, although plant damage from the salts present in the subsoils of manu of these soils (Reeve et al. 1960, 1963) has been hypothesized (Fisher 1981). Early evaluation of pasture legumes concentrated on the genera of Glycine, Macroptilium, Medicago and Lablab (Coaldrake and Russell 1969; Russell and Coaldrake 1970) and salt tolerance of representatives of these genera was investigated by Russell (1976). Recent agronomic evaluation of pasture legumes for clay soils has included other genera such as Clitoria, Indigofera, Desmanthus, Vigna, Rhynchosia Arachis. Since no information was available on the relative salt tolerance of these genera, the present work was undertaken. Species of interest were grown under various salt levels obtained through addition of sodium chloride to a clay soil under glasshouse conditions. Two Macroptilium species studied by Russell (1976) and a grass were included for comparison. aArachis pintoi aMacroptilium lathyroides asoil aClitoria Ternatea aMacroptilium Atropurpureum aSolo aStylosanthes Scabra aAdaptação aAdaptation aPasto tropical aTropical pasture1 aSTRICKLAND, R. W.1 aFISHER, M. J. tAustralian Journal of Experimental Agriculturegv.26, n.2, p.181-186, 1986.