Effects of Low-Temperature Preservation on Ultra-Weak Luminescence of Four Species of Crop Seeds
Zhang Wenlan
Tian Qian
Li Qun
Jia Wenbin
Dai Shuang
Duan Naibin
Abstract：In order to research the relationship between UWL ( ultra-weak luminescence) characteris-tics and seed vigor, the intensity of UWL and DL (delayed luminescence) of seeds from corn, wheat, Chinese soybean and rice were tested after preserved under low temperature for different time.Through this study, it was also expected to provide technical supports for non-destructive test of seed vigor.The relationship be-tween UWL characteristics and low-temperature preservation duration and changing characteristics of DL were studied by statistical analysis, linear regression and diagram drawing.The results showed that there were dis-tinctive differences in UWL power of seeds after preserved for different years.The intensity of UWL declined gradually with the preservation time extending, which was positively correlated with the variation of seed vigor. In the meantime, the intensity of DL declined with the preservation time extending, and the attenuation coeffi-cients of DL increased firstly and then decreased.
Keywords：Low-temperature preservationCrop seedsUltra-weak luminescenceSeed vigor
Publication Date：2014-12-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 38-42 )