Effects of Visible Light Wavelengths on Seed Germinability in Stevia Rebaudiana Bertoni

Raji Akintunde Abdullateef, Mohamad Bin Osman


Stevia rebaudiana Bertoni is one of 154 members of the genus Stevia and it produces sweet steviol glycosides .It originated from Paraguay. The leaves were used as general sweetening agent. Seed germination in Stevia is generally very low and constituted major obstacle to large scale production of the crop. Different wavelengths from visible light were tested on germination of Stevia seeds. The two lights used were (i) white light - 400 to 700nm, and (ii) red light - 660nm. Parameters evaluated include (i) Mean time germination, (ii) mean daily germination, (iii) germination rate, (iv) daily germination speed and (v) germination value. Multivariate tests at probability level <.05 revealed that daily germination speed and number of germinated seeds were significantly higher at (< .001) and (< .014) respectively with the effect of red light on seed germination. Red light (660nm) had better influence on germination in Stevia seeds than white light (400-700nm) and control experiment.

Full Text:


DOI: http://dx.doi.org/10.5539/ijb.v3n4p83

International Journal of Biology   ISSN 1916-9671(Print)   ISSN 1916-968X  (Online)

Copyright © Canadian Center of Science and Education

To make sure that you can receive messages from us, please add the 'ccsenet.org' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.


scholar_logo_lg_2011_120 proquest_logo_120 lockss_logo_2_120