Seed Germination responses of the medicinal herb Centella asiatica

Brazilian Journal Of Plant Physiology

Endereço:
Campos dos Goytacazes, RJ
Rio de Janeiro / RJ
Site: http://www.scielo.br/scielo.php?script=sci_serial&pid=1677-0420&lng=en&nrm=iso
Telefone: (22) 2739-7178
ISSN: 16770420
Editor Chefe: Arnoldo R. Façanha
Início Publicação: 31/01/1989
Periodicidade: Trimestral
Área de Estudo: Botânica

Seed Germination responses of the medicinal herb Centella asiatica

Ano: 2010 | Volume: 22 | Número: 2
Autores: Anjana Devkota, Pramod Kumar Jha
Autor Correspondente: Anjana Devkota | [email protected]

Palavras-chave: 5-triphenyltetrazolium chloride, salinity, leaf leachate, weeds, gibberellic acid

Resumos Cadastrados

Resumo Inglês:

The effect of several environmental factors on germination of medicinal herb Centella asiatica was investigated. Freshly harvested
seeds of C. asiatica did not germinate even after gibberellic acid (GA3) treatment and exposure to different treatments with light
qualities, while two-three months old seeds exhibited germination (82%) without pre-treatment at warm environment (25 -30°C).
GA3 treatment induced germination by two weeks earlier than in control. Germination was significantly (p=0.001) higher in red
and white light than in blue and far red light. In addition, germination of C. asiatica was sensitive towards the salt stress and was
significantly inhibited at 6500 ppm NaCl. The leaf leachates from invasive weeds Chromolaena odorata, Ageratum conyzoides,
Parthenium hysterophorus and Xanthium strumarium showed inhibitory effects on seed germination of C. asiatica. Parthenium
hysterophorus had significant effect (p<0.001) on seed germination. These data contribute for the establishing of an efficient
protocol for C. asiatica cultivation.