Rasio Seks Jernang (Daemonorops Draco (Willd.)blume) Pada Populasi Alami Dan Budidaya: Implikasi Untuk Produksi Biji

Jernang (Daemonorops draco (Willd.) Blume) is a dioecious rattan species that produces resin on female individuals. The sex of jernang can only be identified from its inflorescences morphology. Sex survey was conducted in 5 populations of jernang, 3 populations of which in the Bukit Tigapuluh National Park (BTNP), 1 population in the secondary forest in Jambi province and 1 population in the area of rubber plantation in Jambi province. Chi-Squared test on the sex ratio of jernang showed that the ratio of the male to female in their natural habitat (Bengayoan and Tebo, 2 parts of the BTNP ecosystem and the Sepintun secondary forest) was distorted from the normal ratio of 1:1, while the cultivated jernang in Nunusan population (BTNPT) and Mandiangin were not significantly different from the normal sex ratio of 1:1. Female individuals from the cultivated population in the Mandiangin (planted in 1997) has an average number of stems per clump more on individual males (27.12) than females (26.92). The result of this study indicated that the D. draco has a good reproductive strategy and thus suitable for cultivation

Analysis of Genetic Impurity of An Original Cultivar Duku (Lansium parasiticum (Osbeck.) K.C. Sahni Bennet.), from Jambi, Indonesia Using ITS and MatK Gene

Duku Kumpeh is a original cultivar of Duku (Lansium parasiticum) from Kumpeh a local village in the Jambi, Indonesia. The understanding about genetic information is very important for sustainability used of this prospoctive germplasm of tropical fruit. Identification molecular is very essential to distinguish duku kumpeh with other cultivars of duku in Indonesia. Molecular characteristic of sixteen accessions of Duku Kumpeh were clarified using ITS and MatK gene. DNA from sixteen accessions duku from Jambi were extracted using Genomic KIT plant and amplified them using primer of ITS and MatK gene. The results of amplification DNA samples using both of primer ITS and MatK gene indicated that all of fifteen samples were effectively amplified. So this both of two genes are potential to use for barcoding DNA Duku. Six haplotype of ITS gene and eleven haplotype of MatK gene were identified. The accessions from kumpeh were have different haplotypes. There were genetic impurity in accessions of duku kumpeh. Genetic study and selection of duku kumpeh accessions with superior quality and similar genetic composition were needed in the future

Komposisi Jenis Dan Cadangan Karbon Di Hutan Tropis Dataran Rendah, Ulu Gadut, Sumatera Barat [Species Composition and Carbon Stock in Tropical Lowland Forest, Ulu Gadut, West Sumatra]

Tropical lowland forest is one type of forest ecosystem that dominated most of Sumatra areal and retained carbon terrestrial within.Tropical lowland forest has the highest risk of damage than other forest types. The aimed of study is to determine species composition and carbon stock in tropical lowland forest, Ulu Gadut, West Sumatra. This study was conducted on June to October 2012 at 1 ha Pinang-Pinang permanent plot. Tree biomass was measured by using the non destructive sampling method. All trees with stem diameter at breast height (dbh) = 8 cm were measured diameter and were recorded the species of trees.As much as 852 individuals of trees, which were consisting of 45 families and 155 species with DBH = 8 cm were found in Pinang-Pinang permanent plot. Nephelium juglandifolium Blume, Swintonia schwenckii (T. & B.) Kurz,Syzygium sp.,Microcos florida (Miq.) Burret, Palaquium sp.,Cleistanthus glandulosus Jabl., Hopea dryobalanoides Miq., Mastixia trichotoma Blume, Calophyllum soulattri Burm. f. and Shorea maxiwelliana King were dominant based on -1 -1 Importance Value Index(IVI). Trees biomass and carbon stock in the study site are around 482.75 ton ha and 241.38 ton C ha respectively

Zingiber Macradenium K. Schum, an Endemic Ginger From Sumatera: Traditional Use and Antimicrobe Potential

The Zingiber genus has 84 species and varieties in the Malesia region, one of which is Zingiber macradenium K. Schum. This species is endemic to Sumatra. Zingiber macradenium K. Schum with the local name Lampuriang has been used as a toothache medicine by local people in several locations in West Sumatra. This study conducted in-depth interviews with 8 (eight) key informants who were guided by a questionnaire and the data were analyzed qualitatively and quantitatively using the ICS (Index of Cultural Significance) and UV (Use Value) formulas, antibacterial test using the paper disc diffusion method. The results of the study show that the rhizome of Z. macradenium is used in addition to treating itching, lumbago and other uses by means of research. Antibacterial test showed potential as an antibacterial with a strong inhibitory diameter

Peningkatan Kemampuan Menyimak melalui Bercerita dengan Boneka Tangan di Taman Kanak-kanak

Penelitian ini bertujuan untuk mengetahui peningkatkan kemampuan menyimak melalui bercerita dengan boneka tangan pada anak usia 4-5 tahun TK Negeri Pembina Bangkala, Jeneponto. Subjek penelitian ini adalah anak Kelompok A2 dengan jumlah anak didik 15 orang dengan 2 orang guru. Objek penelitian adalah kemampuan menyimak. Metode yang digunakan dalam pengumpulan data adalah observasi dan dokumentasi yang diambil pada saat proses pembelajaran. Teknik analisis yang digunakan dalam penelitian ini adalah kualitatif deskriptif. Penelitian ini dilaksanakan dalam 2 siklus, setiap siklus berlangsung selama 4 kali pertemuan. Hasil penelitian menunjukkan bahwa kemampuan menyimak Anak Usia 4-5 Tahun TK Negeri Pembina Jeneponto dapat ditingkatkan. Hasil observasi pada pra tindakan menunjukkan bahwa tidak ada anak yang berkriteria berkembang sangat baik. Setelah adanya tindakan Siklus I kemampuan menyimak kriteria berkembang sangat baik meningkat menjadi 5 anak dan pada Siklus II kriteria berkembang sangat baik meningkat menjadi 12 anak. Berdasarkan hasil tersebut dapat disimpulkan bahwa bercerita dengan media boneka tangan pada anak usia 4-5 tahun dapat meningkatkan kemampuan menyimak pada Anak Usia 4-5 tahun TK Negeri Pembina Bangkala Kabupaten Jeneponto

Effects of Indigenous Fagaceae-Inhabiting Ectomycorrhizal Fungi Scleroderma spp., on Growth of Lithocarpus urceolaris Seedling in Greenhouse Studies

Ectomycorrhizal fungi, Scleroderma spp., is potential to promote the growth of seedlings for forestry plants. This research explored the Scleroderma spp., from rhizosphere of Fagaceae in School of Biology forest, investigated the compatibility of Scleroderma spp., with Lithocarpus urceolaris seedlings and studied its effectiveness. The result showed that there were three species of Scleroderma: Scleroderma sinnamariense, Scleroderma columnare and Scleroderma citrinum. Lithocarpus urceolaris inoculated with Scleroderma sinnamariense, resulted in the highest growth of plants (56.55 cm) compared to S. columnare, S. citrinum and control. Diameters of seedlings inoculated with the three species of Scleroderma did not show significant different but they were significant different from control. The three species of Scleroderma had the same growth of colonizations (30%) classified as middle colonizations. There were changes in morphology and anatomy of roots from the infection of three species of Scleroderma. Mantle was clearly observed to cover the root surface and the mycelia formed the Hartig net. There was compatibility between L. urceolaris and three species of Scleroderma. It is suggested that inoculating these Scleroderma to L. urceolaris is necessary to increase the quality of growth seedling