KUALITAS BIBIT RAMIN (Gonystylus bancanus (Miq). Kurz) UNTUK PENANAMAN PENGAYAAN AREAL BEKAS TEBANGAN (Ramin (Gonystylus bancanus (Miq). Kurz) seedling quality for enrichment planting of logged over area)

Enrichment planting in logged-over area needs high-quality seedlings that have high competitiveness, when planted around or near to other plants that grow naturally. The aim of this study is to find techniques to produce high-quality ramin seedlings. The studie employr the following experimental methods : 1) split plot in time to study the arbuscular mycorrhizal fungi (AMF) colonization in roots of natural regeneration of ramin, 2) completely randomized design to study the growth of ramin seedlings in the nursery, 3) randomized block design to study plant growth of ramin at logged-over area. The results show that AMF colonization in the root of ramin seedlings taken from the field was highest at medium light intensity. Meanwhile, the optimum light intensity to raise mycorrhizal seedlings in the nursery is 55 % to 75 %. The AMF colonization increased height and diameter growth, fresh and dry weights, macro-nutrients absorption, dependency of P uptake (DPU), shoot-root ratio quality and index of ramin seedling in the nursery. Ramin is highly dependent on AMF having a relative mycorrhizal dependency (RMD) of more than 50 % and percent growth relative (PGR) of more than 100 %. Rock phosphate of 50 g/polybag is sufficient to support the growth of mycorrhizal seedlings in the nursery. The AMF colonization increases height and diameter of ramin seedlings after being planted in the field (logged-over area). It could be concluded that high quality ramin seedlings could be produced by inoculation of AMF under optimum light intensity and optimum dosage of rock phosphate.Key words : ramin (G. bancanus), light intensity, arbuscular mychorrhizal fungi (AMF), rock phosphat

PERTUMBUHAN Aquilaria spp DENGAN PEMBERIAN PUPUK KANDANG DAN MULSA DI TANAH ULTISOL PADA LAHAN TERBUKA

In the first phase of planting, Aquilaria spp. can only grow in the shade because these plants have semitoleren properties. This condition makes the Aquilaria spp difficult to grow in open fields. Thus, this research was conducted with the treatment of manure and mulch. This research aims to investigate the influence of manure and mulch on the growth of Aquilaria spp. which is planted on ultisol soil in open fields. The research was carried out in an experiment fields of Tanjungpura University in Desa Pak Laheng, Toho sub district, Mempawah region. The research was done until the plant reached the age of 3 months, using a factorial experiment with randomised block design. The treatment started from plants treated without fertilizer (P0), plants with 500-gram fertilizer (P1), and plants treated with 1000-gram fertilizer (P2), as well as with the second factor on plants without mulch (M1) and plants treated with mulch (M2). The results showed that manure gave a clear influence towards height accretion, leaf accretion, and the increase in diameter. Meanwhile, mulch only gave influences towards the increase of diameter.  The interaction of both treatments did not give any influence on the growth of Aquilaria spp. Keywords: Aquilaria spp, manure and mulch, ultisol soil and open field

ASOSIASI FUNGI MIKORIZA (FMA) ARBUSKULA PADA BEBERAPA TINGKAT UMUR TANAMAN JABON (Anthocephalus cadamba) DI DESA SEMBERANG KECAMATAN SAMBAS KABUPATEN SAMBAS KALIMANTAN BARAT

Jabon  that is known  as  Anthocephalus cadamba, is one species of species and that has high prospects for industrial tree plantations because growth is very fast and has the ability to adapt onvarious site conditions. Jabon to improve the growth of jabon that can grow succesfully, so this plant need help to be introduced by  biological agents one of which is the arbuscular mycorrhizal fungi. The purpose of this study was to known study 1  The number of spores and genus AMF associated with jabon, level of association that occur between the AMF with jabon age of 1, 1½ and 2years. Research was carried out for 2 months, starting with the taking of 3 samples jabon age of 1, 1½ and 2 years randomized rural in village Semberang districts Sambas Counties Sambas West Kalimantan. Observation of soil and root samples was carried out in the laboratory of Faculty of Forestry Silviculture Uvinersity Tanjungpura. This  method of isolate spores was been trough a gradual process of wet screening on the ground, them it the coloring on the roots and determine the characteristics of the spores to the genus level and calculate the percentage of infected root AMF. The results of this study were found 6 genus Glomus ang 1 genus Gigaspora and the rage percentage of root infection was 60 % (high) – 97 % (very high) included in the classifications of root infection grades 4 and 5. Keyword: association, arbuscular mycorrhizal fungi (AMF), Jabon (Anthocephalus cadamba

ASOSIASI FUNGI MIKORIZA ARBUSKULA (FMA) DENGAN TANAMAN JELUTUNG (Dyera spp.) PADA TANAH BERPASIR DI PASIR PANJANG KOTA SINGKAWANG

In order to preserve jelutung plants, the Regional Government of Singkawang City has planted 38 trees in the Pasir Panjang area of Singkawang City. The purpose of this study: (1) to study the association of jelutung plants (Dyera spp) on those planted in Pasir Panjang Singkawang, (2) to determine the number of spores and their correlation with tree diameter, (3) to determine the FMA genus contained in the rhizosphere, and (4) percentage of root colonization to determine the level of association of AMF with jelutung plants. The study was conducted by survey method for sampling soil and roots of jelutung plants. Data were collected and analyzed in the form of the average number of spores, genus AMF and the percentage of infections in the roots of jelutung plants. The results of the research that has been done can be concluded that jelutung plants (Dyera spp) that grow in sandy habitats in the Pasir Panjang area of Singkawang City are associated with arbuscular mycorrhizal fungi (FMA). The results of spore calculations found in jelutung rhizosphere in sandy soil habitats are quite abundant with amounts ranging from 436 1279,67/100g of soil. The results of correlation analysis with the coefficient of determination r2 = 0,0169 showed no close relationship between diameter size and the number of spores in the jelutung rhizosphere of sandy soils. From the results of spore calculations, the genus Glomus sp found in the jelutung (Dyera spp) rhizosphere was 874,33 / 100 g of soil (96,8%), while the genus Gigaspora sp was only 23,97 / 100 g of land (2,6%), and Scutellospora sp only 5,50 / 100 g of soil (0,6%). Based on the calculation of the percentage of infections that occur at the root, it turns out that jelutung plants are included as a high level association with the percentage of infections ranging from 8,7 - 100% or being in grade 5.Keywords: Arbuscular Mycorrhizal Fungi (AMF), Jelutung Plants, Number of Spores, Percentage of Root Infection

SELEKSI POHON PLUS TENGKAWANG TUNGKUL (Shorea stenoptera Burck) DI TEMBAWANG DESA PENYELADI KABUPATEN SANGGAU

Tengkawang Tungkul is an endemic species of plant that grows in West Kalimantan which is the best quality wood. Adult tengkawang rooted with good or bad phenotypes will produce fruit and seeds that function as new plant seeds. Knowladge of the source of native seeds or mother trees is the most important part of getting the most quality seeds. The choice of trees as a plus tree is important to produce the best quality seeds. The purpose of this study was to determine the number of tengkawang tungkul that met the criteria as a Plus Tree in tembawang Penyeladi village. This research was conducted in the survey method to determine plus tree candidates and compare trees as a basis for determining plus trees. The object of this research is tengkawang tungkul tree with a diameter of >30 cm and flowering and producing fruit. The phenotype characters consist of a total of tree height, the height of free branches, stem diameter, outward bark width, and tree health. This research found that there were 8 tengkawang tungkul trees that have potential to of plus trees that meet the criteria of a plus tree. The highest score was 72 which was found in plus tree candidate no. 27, a total score of 71 for no. 6, and a total  score of 63 which belongs to candidates numbers 1, 16, 19, 21, 31, and 36. Based on the calculation, the total scores show that a part of the mother trees of tengkawang tungkul in tembawang Penyeladi village of Sanggau regency have met the criteria to be made plus trees.   Keywords: Mother-Trees, Phenotype Characters, Plus Tree, Tengkawang tungkul

SELEKSI POHON PLUS PADA AREAL TEGAKAN BENIH IUPHHK-HA PT. SUKA JAYA MAKMUR KALIMANTAN BARAT

The availability of quality seed is an important factor in planting activities both in natural forests and  forestplantations. Knowledge about the source of seed or the parents tree is an important part to getting good quality seeds.The aims of this study was to establish plus tree that haave several adventages phennnotype, such as grand in diameter,total height, branch free trunk, trunk straighness and surface, wide canopy, and the health of the tree as the the seed- producing trees.This research was conducted by the method of exploration, which is purposive sampling data retrieval using plus tree selection method. This method uses the comparison tree as a basis for determining candidate plus trees.The object of this study is that individuals mature trees with a diameter of at least 20 cm from other types of prospective (Dipterocarpaceae) contained in the Areal of Seed Stands. According to the research there are 49 candidates plus trees, 9 individuals of tree with the highest scores on a plot 92 YY32 km 128 Areal Seed Stand PT. Suka Jaya Makmur West Kalimantan. Assessment is the percentage difference and a score between plus trees with tree comparison, the result tree top with a score 92 found in tree numbers 91, 101, 122, 131, 134, 145, 179 tree species Shorea laevis, tree number 115 trees Shorea leprosula , tree number 153 trees Shorea parvifolia, the total height of a tree with a score of 20, bole height with a score of 15, the diameter of the stem with a score of 30, wide canopy with a score of 10, the surface of the rod with a score of 5, the alignment of the rod with a score of 7, and health tree with a score of 5.It means that most parent trees that exist in the area of stands Seed PT.Suka Jaya Makmur feasible to set as the Plus tree.Keywords: Dipterocarpaceae, Plus Tree, Selection, The  Area of Seed Stands

POTENSI TEGAKAN DAN PRODUKSI BUAH PENAGE (Calophyllum inophyllum) DI PESISIR PANTAI PULAU DATOK KECAMATAN SUKADANA

Abstrak Tanaman penage (Calophyllum inophyllum) tumbuh secara alami di pantai Pulau Datok Kecamatan Sukadana Kabupaten Kayong Utara diameter yang sudah besar dengan diameter lebih dari 30 cm). Tujuan penelitian untuk mengkaji potensi tegakan dan produksi buah penage (C. inophyllum) di pesisir pantai Pulau Datok Kabupaten Kayong Utara dan mengetahui korelasi antara diameter dan luas tajuk terhadap produksi buah. Penelitian ini dilakukan di pantai Pulau Datok Kecamatan Sukadana Kabupaten Kayong Utara Provinsi Kalimantan Barat, menggunakan metode survei dengan teknik pengambilan data dilakukan secara sensus. Data yang dikumpulkan berupa tinggi total (m), tinggi bebas cabang (m), diameter setinggi dada dari permukaan tanah, tinggi tajuk (m), diameter tajuk (m), luas tajuk (m2). Hasil penelitian menunjukan pohon penage yang terdapat di pantai Pulau Datok Desa Sutera Kecamatan Sukadana, ditemukan sebanyak 70 dengan ukuran tinggi 8,1 -14  m, dan volume sebesar 47,72 m3.Produksi buah pohon penage yang terdapat di pantai Pulau Datok sebanyak ± 31,14  kg/pohon. Luas tajuk pohon penage di pesisir pantai Pulau Datok sebesar 647,26 m2 atau rata-rata luas 9,25 m2/pohon. Ukuran luas tajuk dan diameter pohon berkorelasi dengan produksi buah dimana semakin besar ukuran tajuk dan diameter pohon, maka produksi buah semakin besar. Kata kunci : penage, jumlah pohon, luas tajuk dan produksi buah. AbstractPenage (Calophyllum inophyllum) plants grow naturally on the coast of Pulau Datok, Sukadana District, Kayong Utara Regency, which has a large diameter of more than 30 cm. The research objective was to assess the stand potential and production of penage fruit (C. inophyllum) on the coast of Pulau Datok, Kayong Utara Regency and to determine the correlation between diameter and crown area on fruit production. This research was conducted on the coast of Pulau Datok, Sukadana District, Kayong Utara Regency, using a survey method with the data collection technique carried out by census. Data collected in the form of total height (m), branch-free height (m), diameter at breast height from ground level, crown height (m), crown diameter (m), crown area (m2). The results showed that there were 70 penage trees found on the coast of Pulau Datok, Sutera Village, Sukadana District, with a height of 8,1-14 m, and volume is 47,72 m³.  The fruit production of penage trees on Datok Island is ± 31,14 kg / tree. Penage tree crown area on the coast of Datok Island is 647,26 m2 or an average area of 9,25 m2/tree. The size of crown area and tree diameter correlated with fruit production where greater the crown size and tree diameter, Fruit production is getting biger. Keywords: penage, number of trees, crown area and fruit production

KUALITAS MORFOLOGIS BIBIT SENGON (Paraserianthes falcataria L) SEBAGAI BIBIT SIAP TANAM DI PERSEMAIAN BPDASHL SIANTAN KALIMANTAN BARAT

Sengon (Paraserianthes falcataria L) is a plant planted by the West Kalimantan BPDASHL to provide seedlings for the land rehabilitation and state forests and the community.This study was conducted with the objectives of: (1) determining morphological values which include: height, diameter, robustness, root shoot ratio, seed quality index and (2) determine the correlation between age and seed quality based on the age of the seedlings before and after the age of three months. The study used a survey method with purposive sampling and random sampling. Sampling for ten seedlings was carried out random on 30 seeds selected for each age class. The data collected in the study were in the form of morphological quality consisting of height (cm), diameter (mm), wet weight, and dry weight of seedlings. Based on height, diameter, wet weight and dry weight of the seedlings, the sturdiness, shoot-to-root ratio and seed quality index were calculated. Based on the morphological quality, the age of sengon seedlings aged 3 to 3.5 months is included in the category of targeted seedlings so that they are suitable for planting in the field. The regression analysis result showed that there was a relationship between growth age and character of sengon seedlings aged 2.5 months to 4 months. As the age of the seedlings increases, the height and diameter increases. The regression of morphological characters with positive and high coefficient values indicated that seedling age had a positive relationship to seedling quality.Keywords:  morphological, quality, sengon AbstrakSengon (Paraserianthes falcataria L) merupakan  salah satu jenis tanaman yang disemaikan Balai Pengelolaan Daerah Aliran Sungai dan Hutan Lindung (BPDASHL) Kalimantan Barat untuk penyediaan bibit dalam rangka rehabilitasi lahan dan hutan negara serta masyarakat. Penelitian ini dilakukan dengan tujuan menentukan nilai mutu bibit yang meliputi : tinggi, diameter, kekokohan, rasio pucuk akar (RPA), indek mutu bibit (IMB) dan (2) menentukan korelasi umur dengan kualitas bibit berdasarkan umur bibit sebelum dan sesudah berumur tiga bulan.Penelitian menggunakan  metode survei dengan teknik pengambilan secara purposive sampling dan random sampling. Pengambilan sampel untuk 10 bibit dilakukan secara random terhadap 30 bibit yang sudah diseleksi pada masing-kelas umur. Data yang dikumpulkan dalam penelitian berupa kualitas morfologis terdiri dari tinggi (cm), diameter (mm), berat basah,dan berat kering bibit. Berdasarkan ukuran tinggi, diameter, berat basah dan berat kering bibit dihitung kekokohan, rasio pucuk akar (RPA), indeks mutu bibit (IMB). Berdasarkan kualitas morfologis maka umur bibit sengon yang berumur 3 sampai 3,5 bulan sudah termasuk dalam kategori bibit siap tanam sehingga layak untuk ditanam dilapangan. Hasil analisis regresi menunjukkan bahwa terdapat hubungan umur pertumbuhan dan karakter bibit sengon umur  2,5 bulan sampai 4 bulan. Semakin bertambahnya umur bibit ukuran tinggi dan diameter semakin meningkat. Hasil regresi karakter morfologis dengan nilai koefisien positif dan tinggi, menunjukkan bahwa umur bibit mempunyai hubungan positif terhadap kualitas bibit. Kata Kunci : kualitas, morfologis, sengo