Abstract
Solanum nigrum is a newly found Cd-hyperaccumulator which showed very high remediation efficiency in polluted soil. Seed germination experiments with different illumination and seed-soaking reagents were conducted in constant temperature box and greenhouse with soil as burgeon base. The results showed that the germination rate with alternating light/dark photoperiod was about twice of that without lighting ( p < 0.05), suggesting that illumination is one of the important conditions for seed germination of S. nigrum. All treatments with seed-soaking reagents significantly increased the seed germination rate of S. nigrum ( p < 0.05). Treatment with H 2O 2 (0.1%) had the shortest germination time. The germination rate of seeds that were not washed in water following soaking was 2–3 times higher than that of seeds that were washed after soaking.
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