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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 6
First page : (978) Last page : (985)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7236

Studies on Seed Germination and Seedling Growth of Silybum marianum (L.) Gaertn under Water-Deficit Stress Conditions

Milan Jain* and Sunil Puri

Department of Botany, Shoolini University, Solan, Himachal Pradesh, India-173229
*Corresponding Author E-mail: milu.noni@gmail.com
Received: 5.10.2018 | Revised: 13.11.2018 | Accepted: 20.11.2018  

 ABSTRACT

Among the environmental stresses, water-deficit stress is one of the most adverse factors to plant growth and development. The present study was undertaken to study the seed germination and seedling growth of Silybum marianum (L.) Gaertn. to water-deficit stress under laboratory conditions.Water stress was generated using different concentrations of PEG-6000 (Polyethylene glycol 6000) and the seed germination, seedling growth, proline, lipid and chlorophyll (a, b and total) content were evaluated. The increase in osmotic potential showed significant decrease in  germination. Seedling growth parameters decreased with an increase in PEG concentration, except the seedling fresh weight which increased in all the treatments. Proline and MDA content increased with increase in PEG concentrations but chlorophyll content decreased with an increase in water stress.

Key words: Water-deficit, Polyethylene glycol 6000, Osmotic potential, Germination, Proline, MDA, Chlorophyll content.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Jain, M. and Puri, S., Studies on Seed Germination and Seedling Growth of Silybum marianum   (L.) Gaertn under Water-Deficit Stress Conditions, Int. J. Pure App. Biosci.6(6): 978-985 (2018). doi: http://dx.doi.org/10.18782/2320-7051.7236