KEKERABATAN ANTAR ANGGREK SPESIES BERDASARKAN SIFAT MORFOLOGI TANAMAN DAN BUNGA
ABSTRACT: Morphological
relationships among species orchids is necessary to orchid breeder in obtaining
good hybrids in perennial plants. Closely related among species orchids would
increase their crossing opportunity. The objectives of this study was to
classify orchid into cluster according to their similarities in phenotypic
characters. The phenotypic characters observed were plant height (cm), leaf
length (cm), leaf width (cm), ratio of leaf length and leaf width, number of flowers
per inflorescence, lenght of flower stalk (cm), flower diameter (cm), sepala
lenght (cm), leaf colour, type of pseudobulb growth and flower aroma.
Relationships among 16 types of species orchids was analyzed according to
Cluster Analysis with Agglomerative method (Everitt, 1993).
The cluster analysis showed that Phalaenopsis consist of one cluster,
based on the similarities in type of pseudobulb growth, characteristics of
plant height and leaf, number of flowers per inflorescence, length of flower
stalk, flower diameter and sepal length.
Dendrobium consist of four clusters, because of the difference of flower characteristics.
Meanwhile, B. Lobii, A. miniatum, Vanda tricolor, and G. scriptumon has one
cluster, respectively.
Key words: Species orchids,
relationships and cluster analysis
Penulis: Aziz-Purwantoro,
Erlina Ambarwati dan Fitria Setyaningsih
Kode Jurnal: jppertaniandd050002
