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Identification of orchid species is important in orchid conservation. Diversity in orchids can be studied from morphological and anatomical aspects. Observation of morphological characters is easier because it can be done on all plant parts, including stems, flowers, leaves, roots, seeds, and fruit. This research was conducted to study the morphological diversity quantitatively between hybrid Phalaenopsis orchid varieties. The research aims to identify the morphological characteristics of 15 hybrid genotype/accession of Phalaenopsis orchids, followed by descriptor for ornamental orchid plants. Observation variables, including 19 quantitative parameters from leaf characterization and flower characterization. Data analysis was performed using the NTYSYS (Numerical Taxonomy and Multivariate Analysis System) version 2.02i to determine genetic distance; Grouping (cluster) using the UPGMA (Unpair Group of Mean Arithmetic) method. The results of the grouping dendrogram showed that based on the quantitative morphological characters of 15 species of Phalaenopsis hybrid orchids, there were three major groups at 0.92 Dist, namely group I consist of 8 hybrid Phalaenopsis orchids, group II consisted of 6 hybrid Phalaenopsis orchids, and group III only had the P. Shu Long Beauty orchid. P. Shu Long Beauty had the greatest diversity of 1.44 Dist with the other 14 accessions. Taisuko kaaladian”v3” and Dtps. Fullers C-Plus 3790 has a diversity of 0.07. Whereas Dtps. Fullers Sunset has a diversity of 0.90 with the accessions Taisuko kaaladian" v3", Dtps. Fullers C-Plus 3790, P. Red Shoe Ox1408, and P. Ox Black Face Ox1647.
Hartati et al. (Tue,) studied this question.