[Germination characters of Polygonum capitatum seed].
OBJECTIVE
To study the influence of the Polygonum capitatum seed germination by different temperatures, cultivating methods and salt stresses, which can provide reference for seed germination inspection and field seeding.


METHODS
Cultivating seeds in Petri dishes and count germination rate.


RESULTS
The highest germination rate occurs at 15 degrees C; In salt stress condition, with the increase of the salt concentration seed germination rate declines and under the condition of low salt concentration germination rate shows no obvious difference with the controlling group; at the same temperature, germination rate is higher when cultivated with light than under dark, and seeds cultured in the filters have higher germination rate than those which cultured on the filter.


CONCLUSIONS
Germination experiment should carry out at 15 degrees C, with light and between paper. Seeds germinate potential should calculate after the germination experiment progressing 20 d. When planting, salt concentration of the planting seedling field can not above 1 - 2 g/L, otherwise the germination will be affected.
Lv
Xiao-Li
XL
Research Institute for Chinese Medicinal Material of Guizhou University, Guiyang 550025, China. lvxiaoli1982@126.com
Zhao
Zhi
Z
Wang
Hua-Lei
HL
D018525:Germination; D008027:Light; D010946:Plants, Medicinal / Q000187:drug effects / Q000254:growth & development*; D028502:Polygonum / Q000187:drug effects / Q000254:growth & development*; D012639:Seeds / Q000187:drug effects / Q000254:growth & development*; D012965:Sodium Chloride / Q000737:chemistry / Q000494:pharmacology; D013696:Temperature
D012965:Sodium Chloride