Persistence of seed produced from single seed crops of subterranean clover on sandy soils near Esperance, Western Australia.
1987
Bolland M.D.A. | Collins W.J.
In the sowing year, weight and number of seeds and weight per seed varied with cultivar and year of sowing. In the regeneration years, weight of seed decreased by about 60 percent between the first and the second year, by a further 27 percent between years 2 and 3, and a further 3.2 percent between years 3 and 4. The relative decrease in numbers of seed per unit area, to year 4, followed almost identical trends. Individual seed weight was constant for each cultivar sown in the same year, with the exception of 1 experiment when seed collected in the next 2 regeneration years was 1.1-1.4 times as heavy as seed produced in the sowing year. In the sowing year, seed collected about 1 week after the clover had dried off contained less than 4 percent moisture (dry weight basis) and most of the seed were impermeable (hard-seeded).
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