Abstract:The objective was to examine the shootemergence of dwarf bamboos in Pbcontained soil. In this regard, we selceted six kinds of dwarf bamboo [namely, Sasa auricoma (Mitford) E.G.Camus, Sasa fortunei (Van Houtte) Fiori, Sasa argenteostriata (Regel) E.G.Camus, Indocalamus decorus Q. H. Dai, Sasaella glabra (Nakai) f. albostriata Muroi, Shibataea lanceifolia C. H. Hu] and treated with three doses Pb concentrations (0, 300, 1 500 mg·kg-1) to investigate the quantity of shoot emergence and physiological stress resistance characteristics when exposed to soil Pb stress. Results showed that: (1) the effects of soil Pb stress on the shoot period rhythm of dwarf bamboo mainly in the shootemergence period (April to May). The shoot emergence numbers of most bamboo species decreased accompany with degenerated shoot rate, so that to make it possible to stabilize the numbers of new bamboo shoot. Only that in Sasa fortunei, Sasaella glabra and Shibataea lanceifolia emerged a significantly lower tendency on numbers of new shoot under high concentration soil Pb stress when compared with CK, which decreases by 15.87%, 23.64% and 31.25%, respectively. (2) Soil Pb stress induced a surge in contents of O2-· and MDA of generally in new shoots. Both of them were presented with the lowestcontained in Sasa argenteostriata (9.96 μg·g-1, 0.016 μmol·g-1), while the highestcontained of O2-· and MDA appeared in Shibataea lanceifolia (15.99 μg·g-1) and Sasa auricoma (0.021 μmol·g-1), respectively. (3) As a result of being not capable of accumulating enormous free proline, which caused a weak osmotic regulation in Sasaella glabra and Shibataea lanceifolia, when compared with the other 4 species. (4) The tolerance of six dwarf bamboos to high concentration Pb soil during shootemergence period was ranked as follows: Indocalamus decorus (0.79)> Sasa argenteostriata (0.75)>Sasa fortunei (0.70)>Shibataea lanceifolia (0.49)>Sasaella glabra (0.39) >Sasa auricoma (0.38). Above all, Indocalamus decorus, Sasa argenteostriata and Sasa fortunei innately possessed a better physiological characteristics of stress resistance, along with a common regular quantity of new shoots, was considered to retain the superiority of remediation in high concentration of Pbcontained soil.