Document Type : Research Paper

Authors

• M. Shoor ¹
• z. Karimian Fariman ²

¹ Assistant Professors, Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad

² PhD Student, Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad

Abstract

The Floss flower is one of the most important ornamental plants that is cultured as a bedding plant. In this study, anatomical and morphological traits, and earliness of Floss flower transplants were examined. Treatments were 350 µlit lit^-1 (as control), 700, 1050 and 1400 µlit lit^-1 Co_2, with 3 replications, and the experiment was conducted based on completely randomized design and 14 traits were studied. The results indicated that almost all traits were affected by Co₂ concentrations. Particularly at high levels, stem diameter was increased to 50% and plant height was increased 2-fold compared to control. The rate of chlorophyll increased (41.7%) compared to control with 1050 µlit lit^-1 Co₂. Also, stomatal density, width and size of stoma, stomatal index, epidermal cells density, and width of cell guard of plants increased at high level of Co₂. The flowering of plants accelerated 15 days compared to control at 700 µlit lit^-1Co₂.

Keywords

• Floss flower
• CO2
• Anatomical traits
• Morphological traits