Abstract:

The influence of different mass fraction NaCl treatment on delayed luminescence(DL) from Lotus leaves(folium nelumbin) was investigated by BPCL. The results indicate that the lower mass fraction treatments make the initial strength and attenuation parameters of DL first increasing and then decreasing with time, and higher mass fraction treatments make the initial strength and attenuation parameters of DL basically decrease. When treat ment time is the same, the initial strength and attenuation parameters of DL differently vary with increasing mass fraction. When the time is 72h and increasing mass fraction is 1％ or the time is 96h and the increasing is 0.1％, the initial strength and attenuation parameters of DL are the biggest.

Key words: delayed luminescence; NaCl stress; attenuation parameter