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Gibberellic acid and 2,4-D as growth regulators in laboratory culture of seaweeds

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Title Gibberellic acid and 2,4-D as growth regulators in laboratory culture of seaweeds
 
Creator Joseph, Imelda
Chennubhotla, V S K
 
Description 66-69
The growth regulatory effects of gibberellic acid (GA) and 2,4-D
(2,4-dichlorophenoxy acetic acid) on a green alga, Ulva fasciata and two
species of red algae, Gracilaria corticata and Hypnea valentiae were
studied. For a culture period of 30 days, the thallus segments showed varying
growth rates on pretreatment with 6 to 20 mg/l of the above growth substances.
These compounds stimulated growth and increased wet weight of the algae. At
higher concentrations (16-20mg/l) 2,4-D was growth inhibitory, whereas, GA
showed significantly higher growth at 16-20mg/1 concentrations. It is concluded
with the present study that plant hormones like GA and 2,4-D could be used for
enhancement of algal production in culture practices at different
concentrations.
 
Date 2014-01-14T15:42:56Z
2014-01-14T15:42:56Z
1999-03
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25623
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(1) [March 1999]