Effects of seed priming on drought tolerence in Prunella vulgaris.
- Author:
Qiaosheng GUO
1
;
Xianxiu ZHANG
;
Xuelian SHEN
;
Yuhang CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Desert Climate; Droughts; Germination; drug effects; Kinetin; pharmacology; Osmotic Pressure; drug effects; Plant Growth Regulators; pharmacology; Plant Proteins; Prunella; drug effects; physiology; Seeds; drug effects; physiology; Sodium; pharmacology; Sodium Chloride; pharmacology; Temperature
- From: China Journal of Chinese Materia Medica 2009;34(10):1195-1198
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore an effective way to increase drought tolerance of Prunella vulgaris seed.
METHODThe treatment of drought stress to P. vulgaris seeds was made by the different concentrations of PEG solutions. Primed seeds germinated under 25% PEG.
RESULTAs concentrations of PEG increasing, seed germination percentage, germination index and vitality index reduced. Primed with 20%-25% PEG, 300-500 mg x L(-1) GA3 and 1.6%-2.0% KNO3-KH2PO4 could enhance three population seeds germination index and vitality index under drought stress. Treated with NaCl, seeds germination percentage and germination index of two population increased, which came from Nanjing Zijinshan and Anhui Jinzhai, respectively, while those of seeds from Gansu Chengxian reduced.
CONCLUSIONTreated with PEG, GA3, KNO3-KH2 PO4 under proper concentration, seed vigor, seed resistance under drought stress would increase.
