Influence of exogenous substance on germination of Platycodon grandiflorum seeds
Zhao, R.-m.; Liu, L.; Guo, Q.-s.
Zhongguo Zhong Yao Za Zhi 31(12): 966-968
2006
ISSN/ISBN: 1001-5302 PMID: 17048638 Document Number: 600044
To study of exogenous substances on the germination rate of Platycodon grandiflorum and offer the basis for the standardized culture of P. grandiflorum. At 25 degrees C, under darkness and lightness, do pretreatmeats on seeds by using GA3, H2O2, KMnO4, PEG at different concentrations. The results indicated that the pretreatments with GA3 at a concentrating of 50-250 mg x L(-1) and 1%-2% of H2O2 could increase germination of P. grandiflorum seed at a certain degree. Contrariwise 0.1%-0.5% of KMnO4 and 15%-35% of PEG inhibited the germination. Pretreatment with 50-250 mg x L(-1)GA3 and H2O2 at a low cencontration could increase the seed germination of P. grandiflorum.