| Abstrakt: |
Narcissus is a member of the Amaryllidaceae family. This specie is very important in the world as an ornamental plant. In order to study the diversity between narcissus genotypes, an experiment was conducted using a completely randomized block design with 13 genotypes and 4 replications at Agricultural Sciences and Natural Resources University of Khuzestan. In this study, effective indicators on cut flower quality include: number of flowers, stem height, stem and flowers weight, solution uptake, visual quality, chlorophyll of leaf, florets proline, soluble carbohydrates of florets, total phenols of florets, malondialdehyde content of florets, protein, activity of peroxidase and catalase enzymes activities were measured. The results showed that based on the cluster analysis of physiological data, genotypes were divided into two main groups. The first group included the genotypes of Kazerun, Behbahan, Jahrom, Ilam, Shiraz and Kerman. In this group, important traits such as total chlorophyll, solution absorption and total phenol had the highest amount. The second group was divided into two subgroups. Subgroup A included Khosf, Ghaemshahr and Khorramabad genotypes and subgroup B included Ahvaz, Abdanan, Gachsaran and Mehran. Subgroup A, traits such as proline content, malondia aldehyde, antioxidant enzymes peroxidase and catalase were effective factors in this group. Subgroup B had the highest total protein and soluble carbohydrate properties. It was found that the populations of Ahvaz, Abdanan, Gachsaran and Mehran, having the highest amount of total protein and soluble carbohydrates at the end of the experiment, and the content of proline, malondialdehyde, antioxidant enzymes peroxidase and catalase were at a low level, after 10 days, therefore, they introduced as superior populations for cut flowers. In general, the study showed that there was a high morphophysiological diversity in the native genus of narcissus, which can be the result of very different climatic diversity in Iran, as well as mutation and sexual reproduction by seeds in this plant. In general, understanding such a high diversity is useful in the management and protection of the germplasm of this plant and helps the breeder in determining the strategies of exploitation, breeding and domestication and cultivation of this plant. [ABSTRACT FROM AUTHOR] |
