Kompleks Candi Muaro Jambi merupakan salah satu wisata andalan Provinsi Jambi yang mulai dikenal di dalam maupun di luar negeri. Keberadaan jenis-jenis pohon hutan yang terdapat di kompleks percandian Muaro Jambi sangat penting untuk dipertahankan. Kegiatan eksplorasi botani di kompleks percandian Muaro Jambi sangat penting untuk dilaksanakan dalam rangka melakukan inventarisasi dan identifikasi jenis-jenis pohon yang ada. Data yang diperoleh akan berguna dalam kegiatan konservasi dan pelestarian tumbuhan hutan tropis secara menyeluruh. Penelitian dilaksanakan di lokasi Candi Koto Mahligai, di areal resapan air/sepanjang jalur sungai di Kompleks Candi Muaro Jambi, Desa Muara Jambi,  Kecamatan Muaro Sebo, Kabupaten Muaro Jambi dan Laboratorium Silvikultur dan Herbarium Fakultas Kehutanan Universitas Jambi. Penelitian dilaksanakan selama enam bulan dari bulan April sampai dengan bulan Oktober 2018. Tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman jenis-jenis pohon yang terdapat di areal Candi Mahligai dan areal resapan air kompleks Candi Muaro Jambi. Penelitian ini menggunakan metode purposive sampling. Tahapan kegiatan penelitian terdiri dari eksplorasi, pembuatan spesimen herbarium, studi pustaka, identifikasi Jenis. Hasil yang didapatkan yaitu suku yang dijumpai dalam wilayah Candi Koto Mahligai dan Sempadan sungai yang terdapat dalam kompleks Candi Muaro Jambi adalah sebanyak 17 suku, antara lain : Anacardiaceae, Burseraceae, Cucurbitaceae, Dilleniaceae, Euphorbiaceae, Fabaceae, Hyperaceae, Lythraceae, Malvaceae, Meliaceae, Moraceae, Oxalidaceae, Phyllanthaceae, Rubiaceae, Salicaceae, Sapindaceae,  Verbenaceae. Jenis pohon yang paling banyak ditemui adalah jenis Peronema canescens Jack (Sungkai) sebanyak 86 individu dan Lansium parasiticum (Duku) yaitu sebanyak 38 individu.   Kata kunci: eksplorasi , Candi Muaro Jambi, jenis pohon

Lowland forest vegetation can still be found on the Jambi University Campus, namely at the Jambi Mendalo University Educational Forest (HPUJM). Jambi University Educational Forest is administratively located in Mendalo Indah Village, Jambi Luar Kota District, Muaro Jambi Regency, Jambi Province. Vegetation communities are formed by the presence and interaction of the various types of plants that compose them. The form of interaction between plant species in a community is called an association. Associations can be in the form of positive associations and negative associations. This research was conducted to know the association between dominant tree species. This study used a purposive sampling method by determining a sampling area of ​​9600 m2 or 0.96 ha measuring 160m x 60m, divided into 24 sub-plots, each measuring 20m x 20m. Species having an Importance Value Index (IVI) of ≥ 10% were used as the association analysis. The 2x2 contingency table was used to analyze whether or not associations were present between tree species. The results showed, of 15 dominant tree combinations, there were only 4 associated combinations, namely the association between Aporosa lucida and Vitex pinnata, the association between Endospermum diadenum and V.pinnata, the association of Litsea ferruginea with Gironniera diadenum, the association of L. ferruginea with V.pinnata.  Key words: association, dominant tree, lowland forest

Due to over exploitation, the population of Eusideroxylon zwageri is decreasing drastically. One simple technique to conserve the last remaining genetic resources of E. zwageri is by air layering. The experiment was divided into two. The experiment was conducted from July 2018 to February 2019. The first experiment was conducted using branches that grew from coppices while the second experiment using twigs that grew from normal adult trees. Randomized Block Design was applied with three replicates. The treatments were consisted of nine concentration of auxin namely 0 ppm of auxin;

Merbau is a tree that produces very high quality of hardwood. The quality of land merbau wood is currently increasingly scarce, this is due to illegal logging in various places, so it is necessary to carry out plant cultivation efforts for sustainable forest development. Efforts to conserve land merbau need to be done by providing good quality seeds. To increase the success of the nursery, it is necessary to carry out special treatments, one of which is the addition of fertilizer. The purpose of this study was to study the effect of giving the best dose of NPK fertilizer and the best dose of NPK fertilizer on the growth of ground merbau seedlings. This research was conducted in the experimental field of the Faculty of Agriculture, Jambi University, for 4 months using a completely randomized design (CRD) consisting of 5 levels of treatment with 5 replications each. Each treatment unit consisted of 4 plants and one of them was a destructive sample plant, so 100 plants were obtained. The results showed that the effect of application of NPK fertilizer (15-15-15) increased plant height growth, number of leaves, shoot dry weight, root dry weight, root shoot ratio and total dry weight. Treatment of different doses of NPK fertilizer gave different effects on the growth of merbau plants and gave the best results at a dose of 8 g/polybag. Keywords: merbau land, NPK fertilizer, nursery   ABSTRAK Merbau adalah pohon penghasil kayu keras yang sangat berkualitas tinggi. Kualitas kayu Merbau darat saat ini semakin langka hal ini disebabkan karena terjadinya penebangan liar diberbagai tempat, sehingga perlu dilakukannya upaya budidaya tanaman untuk pembangunan hutan yang lestari. Upaya dalam pelestarian Merbau darat perlu dilakukan dengan cara penyediaan bibit yang berkualitas baik. Untuk meningkatkan keberhasilan pembibitan perlu dilakukannya perlakuan-perlakuan khusus salah satunya dengan penambahan pupuk. Tujuan dari penelitain ini adalah untuk menganalisis pengaruh pemberian dosis pupuk NPK dan dosis pupuk NPK terbaik pada pertumbuhan bibit merbau darat. Penelitian ini dilaksanakan di Lahan percobaan Fakultas Pertanian Universitas Jambi, selama 4 bulan dengan menggunakan rancangan acak lengkap (RAL) terdiri dari 5 taraf perlakuan dengan masing-masing ulangan 5 kali. Setiap satuan perlakuan terdiri dari 4 tanaman dan salah satunya tanaman sampel destruktif maka di peroleh 100 tanaman. Hasil penelitian menunjukan bahwa pengaruh pemberian pupuk NPK (15-15-15) meningkatkan pertumbuhan tinggi tanaman, jumlah daun, berat kering tajuk, berat kering akar, rasio pucuk akar dan berat kering total. Perlakuan dosis pupuk NPK yang berbeda memberikan pengaruh yang berbeda terhadap pertumbuhan tanaman Merbau darat dan memberikan hasil terbaik pada dosis 8 g/polybag.   Kata Kunci: merbau darat, pupuk NPK, pembibitan