Short Communication: Morphological characterization of five species of Dendrobium native to Indonesia for parent selection

Abstract

Abstract. Hartati S, Samanhudi, Cahyono O. 2022. Short Communication: Morphological characterization of five species of Dendrobium native to Indonesia for parent selection. Biodiversitas 23: 2648-2654. As one of the most plentiful orchid genera, Dendrobium has a potential genetic resource for crossing programs. Morphological characterization is an important step in determining genetic relationships among orchid species in the same genus. The research aims to identify the morphological characteristics of five species of Indonesian Dendrobium in order to assess the potential cross elder candidates. The materials used in this study were D. mirbelianum Gaudich., D. lamellatum (Blume) Lindl., and D. anosmum obtained from Bogor Botanic Gardens; and D.bracteosum Rchb.f. and D. purpureum obtained from Klaten Speci Gardens. This study recorded 30 morphological characters of Dendrobium studied. There were 23 out of the 30 identified morphological characters (76.67%) that showed varying characters in flowers, leaves, pseudobulbs, and roots. Based on the cluster analysis, five species of Dendrobium are separated into two clusters and cluster division does not correlate with the section of Dendrobium. The species with the highest similarity coefficient has the potential to be used as parental in crosses. Dendrobium lamellatum and D. anosmum have the highest similarity coefficient of 0.80 and are the most potential as parental species for crossing, followed by D. bracteosum and D. purpureum with a similarity coefficient of 0.70.

Diversity of EPIFIT Orchid Types in the Mangrove Ecosystem in Ayari Village, Teluk Ampimoi Sub District, Yapen Islands District, Papua Province, Indonesia

“…The study in the study explained that 30 morphological characters of Dendrobium had been studied. There were 23 of the 30 morphological characters identified (76.67%) which showed various characters in flowers, leaves and roots (Hartati et al 2022). Other research explains that three types of natural orchids in the KEHATI AQUA Wonosobo Park, namely Dendrobium crumenatum, Eria retusa, and Liparis sp can be cultivated.…”

Qualitative morphological similarities among hybrid Phalaenopsis in Indonesia

“…According to [23], the higher the similarity score, the higher the similarity between the orchids tested. The research by [15] on five types of Dendrobium showed results at 0.80 similarities; D. lamellated and D. Anosmum had the highest similarity and a high potential to be used as elders in orchid crosses. Research by [11] on six species of Coelogyne spp.…”

“…Observations of flower morphology include flower shape, lateral dorsal sepal shape, petal shape, lateral dorsal sepal tip shape, petal tip shape, flower aroma, flowering position, number of pollinia, dorsal and lateral sepal color patterns, petal color patterns, lip callus type, lip curve position, tentacle of the labellum, and lip cross-section. According to [15], flowers are important in species identification. Based on Table 2, the observations on flower morphology show that the eight orchids observed have a round flower shape, do not have a floral scent, have a flowering position at the base, and have a number of pollinia of two.…”

Interspecific hybridization of Dendrobium mirbelianum x D. nindii or D. discolor, in vitro seed germination, seedling growth and plantlet acclimatization

“…Dendrobium mirbelianum is well-known as dark-stemmed antler orchid or mangrove orchid, which has yellow-brownish petals and sepals with slightly dark-red striped, the same color as the labellum with a white tongue in the center (Hartati et al 2022). Dendrobium nindii is known as blue orchid, relatively tall posture with slender pseudostems.…”