The phenotypic of durian plant (Durio zibethinus Murr.) in Tapanuli Tengah Regency, North Sumatra, Indonesia

Abstract

Abstract Durian is a plant that is prone to genetic erosion. Exploration and characterization must be carried out to protect the local durian germplasm in Tapanuli Tengah Regency. This study aims to characterize the morphology of durian plants and determine the genetic relationship between the accessions of local durians in Tapanuli Tengah Regency. The research was done at Tukka, Sitahuis, and Kolang districts from December 2018 to February 2019 with a survey method using durian descriptor of IPGRI. Sampling techniques using purposive sampling with location judgment and morphological observation data were processed using NTSYS-pc 2.02 software and genetic relationship using the IBM SPSS (Statistical Package for the Social Sciences) program version 2.02 with cluster analysis. The result of the research showed that in Tukka, Sitahuis and Kolang district there were 75 accessions of durian been identified. The closest relationship is obtained on A61 and G71 originating from Kolang District with a similarity value of 7,345. The furthest relationship was obtained from A1 and A25 from Tukka district with the similarity value of 94,097.