Analisis Hubungan Kekerabatan Cempedak (Artocarpus Champaden Lour.) Berdasarkan Penanda Morfologi Di Kabupaten Kampar Provinsi Riau

Kampar is one of the regency in Riau Province that has high diversity of cempedak (Artocarpus champaden Lour.). The diversity of cempedak in Kampar have not been reported, researched and characterized morphologically. This research was aimed to analyze the diversity of cempedak cultivars from various regions. This study had been conducted from September to Desember 2013, using exploration method. A total of 51 morphological characters from 30 individuals were observed and scored and then analyzed using NTSYSpc 2.02 and Minitab 16.0. Four cempedak cultivars identified in this study were Bubur (6 individuals), Hutan (14 individuals), Langkat (5 individuals), and Nangkadak (5 individuals). The coeffisien similarity were range from 0.23 to 0.72. The dendogram shows two main group, first group consist of 29 individuals, such as Bubur (5 individuals), Hutan (14 individuals), Langkat (5 individuals) and Nangkadak (5 individuals); the second group consisted of 1 individu (Bubur cultivar). Main group analysis showed that plant clustered is not based on the origin. Furthermore pearsoncorrelation analysis on 51 characters showed that there are positive correlations between 40 characters, and negative correlations between 6 characters

Analisis Hubungan Kekerabatan Macang (Mangifera Foetida Lour.) Di Sumatera Bagian Tengah

The diversity of Mangifera foetida Lour. (macang) in central Sumatra has not beenexplored and inventoried. On the other hand, the diversity of cultivars and varieties ofthis species is endangered due to the lost of its natural habitat. This research aimed toanalyze the diversity of macang in central Sumatra. The research was carried out fromDecember 2011 to June 2013. The morphological and agronomical characters of a totalof 66 macang trees had been observed. All of these observed characters were then scoredand analyzed using NTSYSpc 2.02 to determine their clustering and using Minitab toanalyze the principle component and correlation of Pearson. The result showed that thesimilarity coefficient ranged from 0.17 to 0.76. Dendogram constructed from thesimilairty coefficient showed two main groups, that clustered not based on the samplelocations but based on the character similarity (fruit color). The first group consisted of65 individuals and second group consisted of one individual. The result of Principlecomponent analysis showed two main groups, with the diversity accumulation value was40%. The results of correlation analysis of 66 characters showed that six characterswere positively corellated

Eksplorasi Dan Uji Daya Hambat Bakteri Endofit Dari Tanaman Benalu Sawo (Helixanthera SP.), Benalu Coklat (Scurulla SP.) Dan Benalu Kopi (Helixanthera SP.) Terhadap Escherichia Coli

Endophytic bacteria are microscopic microorganisms that live in the tissues of plants such as leaves, roots, fruits and stems. The parasite plants on sapodilla (Helixanthera sp.), cocoa (Scurulla sp.) and coffee (Helixanthera sp.) are medicinal plants. Theseplants have endophytic bacteria that have antibacterial compounds as antibiotics that inhibit the growth of Escherichia coli. The purpose of this study was to get endophytic bacteria isolates from parasite plants on sapodilla, cocoa and coffee, and determine the antibacterial activity against E. coli. Sampling was conducted in Kampar regency and Pekanbaru city. The parasite plants were collected from the field and their endophytic bacteria were selected using surface sterilization method and purified before their activity against E. coli being tested. The selected bacteria were then characterized. The results obtained 34 endophytic bacterial isolates that had activity against E. coli. Endophytic bacteria isolates which had the highest activity against E. coli isolates were Bbs4 from sapodilla parasites with 12,1 mm inhibition zone diameter