TY - JOUR T1 - Induction of autotetraploidy in Madagascar periwinkle (Catharanthus roseus cv. Rosea) by colchicine treatment in order to induce diversity of morph-physiological and phenology traits TT - القا اتوتتراپلوئیدی در گل پروانش (Don. Catharanthus roseus) رقم روزئا به منظور ایجاد تنوع در ویژگی‌های مورفوفیزیولوژیکی و فنولوژیکی با استفاده از تیمار کلشی‌سین JF - jispp JO - jispp VL - 3 IS - 9 UR - http://jispp.iut.ac.ir/article-1-191-en.html Y1 - 2015 SP - 1 EP - 10 KW - Catharanthus KW - Ploidy level KW - Flow cytometry KW - Phenology KW - Colchicine N2 - In order to induce of autotetraploidy and to evaluate changes in morphological and phenology characters of Madagascar (Catharanthus roseus cv. Rosea) an experiment was implemented in a randomized complete blocks design with four concentrations of colchicine (0, 0.1, 0.2 and 0.4%) Spraying was carried out in six replicates in the two true leaf stages. The results of the analysis by using flow cytometry, cytogenetic and morphological indicated that treatments of 0.2 and 0.4% had significant effect (p M3 ER -