Iranian Biology Society Journal of Plant Research (Iranian Journal of Biology) 2383-2592 28 5 2016 02 20 Effects of Hardness of Culture Medium on Purification and Colony Formation in Green Algae Scenedesmus quadricauda Effects of Hardness of Culture Medium on Purification and Colony Formation in Green Algae Scenedesmus quadricauda 1066 1076 672 FA Journal Article 2013 09 28 In this study effect of different hardness of 0 (control), 200, 400, 600 mg CaCO3/l of culture medium on purification and colony formation of green alga Scenedesmus quadricauda were investigated. Results showed that medium hardness had significant (P In this study effect of different hardness of 0 (control), 200, 400, 600 mg CaCO3/l of culture medium on purification and colony formation of green alga Scenedesmus quadricauda were investigated. Results showed that medium hardness had significant (P https://plant.ijbio.ir/article_672_2dea61eed4bceec564a00115c4d21334.pdf