The Diversity And Classification Of Intraspecies Of Gembolo (Dioscorea Bulbifera L.) Based On Morphological Character

Abstract

Gembolo (Dioscorea bulbifera L.) is a dioecious, annual, herbaceous, climbing plants and has heart-shaped leaves. Gembolo has aerial tubers (bulbil) and main tuber that has irregular shapes, as well as many rough roots at the base of the stem. The purpose of this research is to know the phenetic relationship of the germplasm of Gembolo in Special Region of Yogyakarta based on morphological character. The results of this study are expected to provide information on intraspecies diversity, phenetic relationship and Gembolo distribution. Gembolo plant samples were taken from D.I Yogyakarta. The sample was observed based on the difference of morphological character, so the number of accessions obtained from D.I Yogyakarta could be determined. Morphological characters would be described and characterized to determine the Operational Taxonomic Units (OTU's). Based on morphological character data, then the grouping analysis was done by grouping analysis method and the dendrogram was formed by the method of Unweighted Pair Group Methods using Arithmetic averages (UPGMA) using Multivariate Statistical Program (MVSP) software version 3.1pc. The results showed that gembolo had morphological variation in tuber shape, stem color, leaf shape, leaf base shape and leaf tip shape. Based on the morphological characters, 2 main groups with the value of similarity index of 62,8% was formed. Group I consisted of four accessions with a similarity value of 85%. Group II consisted of eight accessions with a similarity value of 75%. A high similarity based on the morphological character on gembolo accession caused the gembolo plants in Special Region of Yogyakarta did not vary.

Morphological Variabilities and Identification of Yam (Dioscorea spp.) Genotypes from Major Growing Regions in Tanzania

“…Sartie and Asiedu (2014) observed that about 45% of D. alata genotypes produced flowers with the male being 49% and the female 19.9%, while Wu-Wenqiang et al (2019) In the present study, aerial tubers of D. bulbifera had either round or irregular shapes with dark-brown and light-brown outer skin colour, similar to the findings of Islam et al (2011) and Mulualem and Weldemichel (2013). Most tuber fleshes of D. bulbifera genotypes were yellow, a similar observation by (Prasetia and Setiadi 2018). However, some had white with purple and purple with white flesh colours.…”