Effect of seed soaking with aluminum on seed germination and seedling physiology of Platycodon grandiflorum.
- Author:
Lixiang ZHU
1
;
Jianhua WANG
;
Xinsheng FANG
;
Yong WANG
;
Junkai HAO
;
Ma WEIWEI
;
Tianying JIAO
Author Information
1. College of Agronomy, Shandong Agricultural University, Tai'an 271018, China. zhulix1965@163.com
- Publication Type:Journal Article
- MeSH:
Aluminum;
pharmacology;
Dose-Response Relationship, Drug;
Germination;
drug effects;
Immersion;
Platycodon;
drug effects;
growth & development;
physiology;
Seedlings;
drug effects;
physiology;
Seeds;
drug effects;
growth & development
- From:
China Journal of Chinese Materia Medica
2010;35(24):3255-3259
- CountryChina
- Language:Chinese
-
Abstract:
In order to study the effect of seed soaking with different aluminum solution on seed germination and seedling physiological characteristics of Platycondon grandiflorum, two P. grandiflorum varieties'seed (the white flower and the purple flower) were soaked in Al3+ solution with different concentrations (0, 10, 100, 250, 500, 750 and 1000 mg x L) for 24 h, then germinated in illumination incubator. Results showed that the aluminum toxicity on the trends of the germination rate, germination index and vigor index was positive associated with its concentration, and the Al tolerance of the purple was slightly greater than that of the white. There were some relationships between the physiological indices, which were the leakage rate of electrolyte, the malonaldehyde (MDA) content, the activities of peroxidase (POD) and superoxide dismutase (SOD) , the free praline(Pro) and the soluble sugar contents, with the concentrations of Al. It was suggested that there was Al tolerance difference between the two P. grandiflorum varieties: the purple flower was greater than the white.
