Regeneration of annual winter legumes at Tamworth, New South Wales

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Abstract
The seed production and regeneration of a range of naturalized and introduced cultivars of annual clovers and medics was studied at Tamworth, New South Wales, between 1971 and 1973. Seed production was correlated with maturity grading within species only when moisture stress occurred in late spring. The proportion of seed lost as summer seedlings and the proportion of unrecovered seed were greater the lower the level of hardseededness. A greater proportion of unrecovered seed was recorded for those cultivars which bore their burrs at the soil surface. As a group the medics had a higher proportion of residual hard seeds than did the clovers. The results are discussed in relation to the likely persistence of improved cultivars compared to the successful persistence of the naturalized medics and clovers in the Tamworth district.

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