Evaluation of ornamental ability of some Allium plants using two methods of principal component analysis and scoring of aesthetic characteristics (Case study: Summer rangelands of Noorrud watershed)

Subject Areas : flor

leila  darvishi ¹ (PhD student in rangeland management, Gorgan University of Agricultural Sciences and Natural Resources)
hossien  barani ² (Associate Professor, Faculty of Rangeland and Watershed management, Gorgan University of Agricultural Sciences and Natural Resources)
mosa  akbarloo ³ (Associate Professor, Faculty of Rangeland and Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources)
hassan  ghelichnia ⁴ (Associate Professor of Agricultural and Natural Resources Research Center of azandaran Province)

Received: 2021-05-09 Accepted : 2021-09-24 Published : 2021-11-22

Keywords: Morphological Characteristics, Allium, Phenological characteristics, Noorrud rangelands,

Abstract :

The aim of this study was to evaluate the ornamental ability of Allium plants using two methods of principal component analysis and scoring their aesthetic characteristics in the summer pastures of Nourrood watershed.In order to determine the habitat of each of these species,5 to10 plant bases were determined and marked on the site. Then all phenological and morphological characteristics of these marked bases were measured and recorded.The experiment was performed based on a completely randomized design with8 treatments and 5replications. Treatments included8species of allium.To determinethe ornamental capacity of the studied species, cluster analysis and principal component analysis were used and important characteristics in terms of decoration suchas flowering stem height, inflorescence diameter, plant width,duration of flower on the plant And leaf area was examined.Based on thefirst and second components, which explained93.74%of the differences between the data, the relevant biplot was drawn Also, in another method,images of these plants were recorded using a camera at different angles and regarding their aesthetic value from three different statistical groups,including the community and indigenous people, experts in the fieldof flowers and ornamental plants and people of art and cyberspace.A questionnaire was conducted and a total of 264 questionnaires were prepared. Evaluation of ornamental abilities using the twomethods studied showed that A bodeanum, A akaka, elburzensis species with large inflorescence diameter and beautiful purple color and A ampeloprasum species due to their high height and long leaf and flower duration,Can be introduced as plants with good ornamental ability and can be planted in these areas