Subterranean clover Trifolium

In Australia, lambing in sheep has dropped to as little as 30% after grazing on subterranean clover. Trifolium subterraneum. The clover contains the isoflavonoids formononetin and genistein (Fig. 11.11). These compounds mimic the steroidal nucleus of the natural female hormone estrone. Alfalfa, M. sativa, and ladino clover. Trifolium repens, contain the even more potent isoflavonoid coumestrol. It is 30 times more active than genistein or formononetin, but occurs in lower concentrations in the plant (Shutt, 1976). 

Dear, B. S. and J. Lipsett. 1987. The effect of boron supply on the growth and seed production of subterranean clover (Trifolium subterraneum L.). Aust. Jour. Agric. Res. 38 537-546. 

Enache, A.J. and R.D. Ilnicki (1990). Weed control by subterranean clover (Trifolium subterraneum) used as a living mulch. Weed Technol., 4 534-538. 

Groves, R.H., Williams, J.D. Growth of skeleton weed (Chondrilla juncea L.) as affected by growth of subterranean clover (Trifolium subterraneum L.) and infection by Puccinia chondrillina Bubak and Syd. Aust J Agri Res 1975 36 975-983. 

Quigley, P.E. Effects of Neotyphodium lolii infection and sowing rate of perennial ryegrass (Loliumperenne) on the dynamics of ryegrass/subterranean clover (Trifolium subterraneum) swards. Aust J Agri Res 2000 51 47-56. 

Donald, C. M., and Williams, C. H. (1954). Fertility and productivity of a podzolic soil as influenced by subterranean clover (Trifolium subterraneum L.) and superphosphate. Aust. J. Agric. Res. 5 664-87. 

Subterranean clover Trifolium 0.05-0.10 Youngest open leaf Not known Robson (1984), quoted by Smith (1986b)... 

Joner, E.J. and Jakobsen, I. (1 995a) Uptake of P from labelled organic matter by mycorrhizal and non-mycorrhizal subterranean clover (Trifolium subterraneum L.). Plant and Soil 1 72, 221-227. 

Isol. from Subterranean clover Trifolium subterraneum. Mp 210-211°. 

Constit. of red and subterranean clovers Trifolium pratense and T. subterraneum) and of Chana (Cicer arietinum). Constit. of the heartwood of Pterocarpus indicanus. Found also in Baptisia australis. Widely distributed in the Leguminosae (Papilionoideae). Also in Virola caducifolia and V. multinerva (Myricaceae). Cryst. Mp 265-266° (257° ). 

Isol. from subterranean clover Trifolium subterraneum. Minute off-white cryst. Mp 293-294° dec. 

Shutt, D.A., Weston, R.H. Hogan, J.R (1970). Quantitative aspects of phyto-oestrogen metabolism in sheep fed on subterranean clover Trifolium subterraneum, cultivar dare) or red clover Trifolium pratense). Australian Journal of Agricultural Research, 21,714-722. 

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