Fig. 6.

Germination in constant darkness of seed lots recovered from seed burial trials at Perth, Northam and Merredin over a 2 year period. Seeds were germinated with or without 1 µm KAR₁ (as indicated). Seed lots ‘A’ and ‘B’ of Brassica tournefortii (A, B) and Raphanus raphanistrum (C, D) were incubated at 15 °C constant temperature, whereas seed lots ‘A’ and ‘B’ of Sisymbrium orientale (E, F) and seed lot ‘A’ of S. erysimoides (G) were tested at 25 °C. n ≥ 100 seeds per treatment; vertical bars represent the 95 % confidence interval for binomial estimates.