Seed germination of a newly discovered hyperaccumulator Solanum nigrum L. affected by illumination and seed-soaking reagent.
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 H2O2 (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.
Wei
Shuhe
S
Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China. shuhewei@yahoo.com.cn
Hu
Yahu
Y
Srivastava
Mrittunjai
M
Zhou
Qixing
Q
Niu
Rongcheng
R
Li
Yunmeng
Y
Wu
Zhijie
Z
Sun
Tieheng
T
D003624:Darkness; D003627:Data Interpretation, Statistical; D018525:Germination / Q000187:drug effects / Q000502:physiology* / Q000528:radiation effects*; D005875:Gibberellins / Q000494:pharmacology; D006861:Hydrogen Peroxide / Q000494:pharmacology; D007202:Indicators and Reagents; D008027:Light; D009566:Nitrates / Q000494:pharmacology; D017680:Potassium Compounds / Q000494:pharmacology; D012639:Seeds / Q000187:drug effects* / Q000254:growth & development / Q000528:radiation effects*; D032324:Solanum nigrum / Q000254:growth & development*
D005875:Gibberellins; D007202:Indicators and Reagents; D009566:Nitrates; D017680:Potassium Compounds; D006861:Hydrogen Peroxide; C023844:potassium nitrate