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PENGARUH PEMBERIAN EKSTRAK TAUGE DAN BAWANG MERAH PADA PERTUMBUHAN BIBIT GAHARU (Aquilaria Malaccensis) fenty dwi jayanti; Duryat Duryat; afif bintoro
Jurnal Belantara Vol 2 No 1 (2019)
Publisher : Forestry Study Program University Of Mataram

Agarwood is a plant that has high economic value and its demand continues to increase from time to time, therefore it is necessary to provide a natural hormones to help the growth of agarwood seedlings to have good quality and quantity. The purpose of study ware to determine the effect of extract bean sprouts application and onion extract application to increase the growth of A.malaccensis seedlings and to find out the best dosage of bean sprout extract and onion extract to increase the seedling growth. The study was designed in a complete randomized design (CRD) in 9 treatments namely control, bean sprout extract at the dose of 100 g/l, 200 g/l, 300 g/l, 400 g/l and onion extract at the dose of 100 g/l, 200 g/l, 300 g/l, and 400 g/l. The homogeneity test, analysis of variance and LSD test were employed as the data analysis. The results of study showed that bean sprouts and onion extract application, have a significant effect to the increasing of height (up to 11,47 cm on the treatment onion extract at a dose of 200 g/l), number of leaves (up to 9,67 leaves on the treatment onion extract at a dose of 200 g/l), and seedling quality index (up to 0,18 on the treatment onion extract at a dose of 200 g/l). The best treatment to the increase of A.malaccensis seedlings was the onion extract application at a dose of 200 g/l. The treatment can be applied in agarwood seeds to get maximum results.

KONTRIBUSI KOMPOSISI VEGETASI DALAM PENYIMPANAN DAN SERAPAN KARBON DI HUTAN RAKYAT DESA NEGARA RATU II KECAMATAN NATAR KABUPATEN LAMPUNG SELATAN Dian Afriansyah; Duryat Duryat; Hari Kaskoyo
Jurnal Belantara Vol 2 No 2 (2019)
Publisher : Forestry Study Program University Of Mataram

Tree stands in community forest have potential to absorb carbon in the air by storing in the body parts of the tree. This study aims to determine the effect of community forest’s stand types on the number of reserves and carbon uptake. The sampling method used is the cluster sampling method to determine the sample. Biomass data are collection destructive and non destructive methods. Estimation of biomass is carried out using the allometric equations. Measurement of carbon content using the formula from BSN (2011) x 0.47. Comparative analysis of carbon reserves and removals uptake using the variance test and 5 % BNT test. Public forests in the Negara Ratu II village with gold teak stands have carbon reserves and removals (135.87 tons/ha and 499,00 ton/ha). the most significant compared to community forests with other types of stands. While the reserve value and carbon uptake between white teak (44.86 tons/ha and 164.63 tons/ha), acacia (54.13 tons/ha and 191.20 tons/ ha), red jabon (51.20ton/ha and 187.90 tons/ha), white jabon (59.51 tons/ha and 218.40 tons/ha), is no different.

KEANEKARAGAMAN FUNGI MIKORIZA ARBUSKULAR PADA RHIZOSFER AREAL REVEGETASI LAHAN PASCATAMBANG EMAS PT NATARANG MINING Siti Tisas Sitra Sanana; Ceng Asmarahman; Melya Riniarti; Duryat Duryat
Jurnal Belantara Vol 5 No 1 (2022)
Publisher : Forestry Study Program University Of Mataram

Identification of local AMF is crucial in accelerating the process of successful revegetation on post-mining land. The research objective was to identify the diversity of AMF species on PT Natarang Mining's post-mining land. Soil sampling using purposive sampling techniques in a non-proportional manner with a plot measuring 20 m x 20 m determined based on the spread of vegetation growing at the location. Sampling site on revegetation land in 2015 and 2018. The AMF spores were obtained by using a wet filter method and the data obtained were analyzed by descriptive analysis. The results of the study identified that there were 3 genera found, namely Acaulospora sp. Glomus sp and Gigaspora sp. The diversity of FMA species in both locations is classified as moderate. Soil chemical properties correlated with the number and type of arbuscular mycorrhizal spores found at all locations. Further research is needed to clearly identify the species and characteristics of the spores and their application can increase the success of reclamation.

Composition Analysis of Vegetation in Sub-Sub DAS Khilau Kabupaten Pesawaran Atikah Badzlina; Irwan Sukri Banuwa; Afif Bintoro; Duryat Duryat
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 6 No. 1 (2019)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v6i1.33

The changes in land use often affect biodiversity. Eventually, it would affect the composition of the vegetation in the protected forest in KPHL Kabupaten Pesawaran, especially in Sub-sub-watershed Khilau. This study aimed to analyze the composition of the vegetation on the various classes of land cover in Sub-sub-watershed Khilau. The main location of the study was conducted in the CCCD site project area. The used method was vegetation analysis with checkered lines as a sampling method. The results of the vegetation analysis of the entire important species growth phase that were found with the largest number were 78 species from each land cover in the tree phase. The lowest number was 33 species in the sapling phase, not even in the seedling phase was found in each land cover. Rehabilitation is urgently needed to maintain functions in the protected areas of the Khilau watershed.

RESPON PERKECAMBAHAN BENIH KEMIRI SUNAN (Reutealis trisperma) TERHADAP SKARIFIKASI KIMIA DENGAN ASAM SULFAT (H2SO4) PADA BERBAGAI LAMA WAKTU PERENDAMAN Ahmad Deni Ismail; Duryat Duryat
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 5 No. 1 (2018)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v5i1.57

The duration of submersion and the level of acid concentration which are the decisive factors to succed the chemical scarification. The duration of submersion should be adjusted to the level of seed skin thickness, the level of acid concentration and the type of acid used. This study aimed to analyze the inmersion effect of kemiri sunan seeds in sulfuric acid solution to break the seed dormancy and to get the most effective time of submersion in order to break the dormancy of kemiri sunan seed. The experiment was conducted in the greenhouse for 2 months (62 days). The randomized complete design was employed as experimental method. There were 4 treament tested, i.e : (1) control (without immersion in H2SO4 solution); (2) immersion in H2SO4 solution for 10 minutes; (3) immersion in H2SO4 solution for 20 minutes and (4) immersion in H2SO4 solution for 30 minutes. The results of research showed that control gave the best results in term of the percentage of germination (G), mean daily gremination (MDG), and germination rate (GR)

ANALISIS VEGETASI DI BLOK INTI HUTAN LINDUNG REGISTER 21 KESATUAN PENGELOLAAN HUTAN XI KABUPATEN PESAWARAN Tedy Rendra; Duryat Duryat; Afif Bintoro
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 5 No. 1 (2018)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v5i1.60

Sumber daya hutan harus terjaga kelestariannya salah satunya adalah hutan lindung. Hutan lindung mempunyai fungsi mengatur tata air. Vegetasi tanaman pada hutan lindung sangat penting untuk mempertahankan fungsinya. Penelitian ini bertujuan mengetahui komposisi vegetasi blok inti hutan lindung. Penelitian dilakukan pada blok inti hutan lindung register 21 Kesatuan Pengelolaan Hutan (KPH) XI Pesawaran pada bulan Agustus – Oktober 2017. Pengambilan sampel dilakukan menggunakan metode continuous sampling with random start dengan jumlah plot sebanyak 45 buah. Analisis dilakukan menggunakan Indeks Nilai Penting (INP). Hasil analisis menunjukkan terdapat 40 jenis tanaman yang terdiri atas 21 famili, didominasi oleh Theobroma cacao dengan INP sebesar 130%.

PENGUATAN KELEMBAGAAN PENGELOLA HUTAN DESA DI SEKITAR GUNUNG RAJABASA LAMPUNG Rommy Qurniati; Duryat Duryat; Hari Kaskoyo
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol 1 No 3 (2017): Jurnal Sakai Sambayan
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract Management of forest area could not be separated from the communities who are living surrounding and their depending on the forest area and its products. As a manifestation of social responsibility, Lampung University has been conducting a program of KKN-PPM in order to increase the community welfare at once keep maintaining the forest function. The activity intended to increase capacity of Forest Village Admninistrator Agency (LPHD) and village officials in terms of institutional ability administration and group dynamics. A method of lecture and discussion, followed by practice demonstration and 40 days accompaniment were employed as training method. The result showed that the training has proven to be very effective in improving the ability of participants cognitively, affectively and psychometrically in terms of administrative definition, types of administrative tools, characteristics and functions of group dynamics, communication, leadership and groups synergies, as well as factors influence the quality of relationships within a group. Therefore, the efforts to strengthened LPHD should be implemented continuously to create a dynamic group where the members were actively involved, responsible and skilled to work in the group. This training was also very effective to be a means of capacity building of the community and students. Keywords: forest village, Forest Village Admninistrator Agency, institution straighten Abstrak Pengelolaan wilayah hutan, tidak dapat dilepaskan dari masyarakat sekitar yang menggantungkan hidup dari kawasan dan hasil hutan. Sebagai wujud dari tanggungjawab sosial perguruan tinggi, Universitas Lampung dengan program KKN-PPM melaksanakan kegiatan dalam rangka meningkatkan kesejahteraan masyarakat dengan tetap menjaga kelestarian fungsi hutan. Kegiatan ini bertujuan untuk meningkatkan kapasitas pengurus LPHD dan aparat desa dalam hal kemampuan administrasi kelembagaan dan dinamika kelompok. Kegiatan ini dilaksanakan dengan metode ceramah dan diskusi, diikuti dengan demonstrasi praktek, dan kemudian pendampingan masyarakat selama 40 hari. Kegiatan ini terbukti sangat efektif untuk meningkatkan kemampuan peserta baik dari segi kognitif, afektif dan psikomorik dalam hal pengertian administrasi, jenis-jenis perangkat administrasi, ciri-ciri dan fungsi dinamika kelompok, komunikasi, kepemimipinan dan sinergi dalam kelompok, serta faktor-faktor yang mempengaruhi kualitas hubungan di dalam suatu kelompok. Oleh karena itu upaya penguatan kelembagaan LPHD perlu terus digalakkan agar terwujud lembaga yang dinamis dengan anggota yang terlibat aktif, bertanggungjawab dan terampil dalam bekerjasama. Kegiatan pelatihan ini juga sangat efektif menjadi sarana belajar bersama bagi peningkatan kapasitas masyarakat dan mahasiwa. Kata kunci: hutan desa, LPHD, penguatan kelembagaan

Responses Of Kemiri Sunan (Reutealis trisperma) Seeds Germination To Chemical Scarification Atvarious Submersion Time In Sulfuric Acid (H2so4) Ahmad Deni Ismail; Duryat Duryat
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.1236

The duration of submersion and the level of acid concentration which are the decisive factors to succed the chemical scarification. The duration of submersion should be adjusted to the level of seed skin thickness, the level of acid concentration and the type of acid used. This study aimed to analyze the inmersion effect of kemiri sunan seeds in sulfuric acid solution to break the seed dormancy and to get the most effective time of submersion in order to break the dormancy of kemiri sunan seed. The experiment was conducted in the greenhouse for 2 months (62 days). The randomized complete design was employed as experimental method. There were 4 treament tested, i.e : (1) control (without immersion in H2SO4 solution); (2) immersion in H2SO4 solution for 10 minutes; (3) immersion in H2SO4 solution for 20 minutes and (4) immersion in H2SO4 solution for 30 minutes. The results of research showed that control gave the best results in term of the percentage of germination (G), mean daily gremination (MDG), and germination rate (GR).

SELEKSI DAN PENGUKURAN KANDIDAT POHON PLUS GAHARU (Aquilaria malaccensis) DI DESA KRAWANG SARI KECAMATAN NATAR Rila Pangesti; Afif Bintoro; Duryat Duryat
Jurnal Silva Tropika Vol. 4 No. 1 (2020): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jsilvtrop.v4i1.8527

Plus trees are trees that can produce high quality seeds. To get a plus tree, it is necessary to select and measure the candidate tree. Plus trees selection can be done by applying gradual screening based on agarwood plus trees criteria. The criteria for agarwood plus trees are that the tree has not been inoculated, the tree has produced fruit, the condition of the tree is healthy, the tree is tall, the tree has a large diameter and the tree has a large number of branches. The results showed that there were 5 trees that qualified as a plus tree including trees number 275, 153, 195, 243 and 321. The most superior plus tree was tree plus number 275 which had a height of 7.2 meters, a diameter of 135 cm and had 18 branch.

Essential Oil Rendemen Analysis of Nutmeg (Myristica fragrans) Seeds in Various Classes of Sunlight Intensity at Batu Keramat Village, Kota Agung Subdistrict, District of Tanggamus Erin Agesta Ariandi; Duryat Duryat; Trio Santoso
Jurnal Sylva Lestari Vol. 6 No. 1 (2018): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Nutmeg tree (Myristica fragrans) is a spice tree with high economic value. Nutmeg fruit was contains essential oil as the results of secondary metabolism process. Adequacy of sunlight, the average distance of intersect trees, the tree species and numbers of intersect trees on photosynthesis and the results of secondary metabolism. The aimed of the study was to analyze the rendemen yield obtained from the nutmeg fruit based on differences sunlight intensity with the differences stratum canopy and determine the factors that influence the yield of nutmeg essential oil. The differences of sunlight intensity was used as a treatment there were three classes of sunlight intensity which were low sunlight intensity (0-25%), the moderate sunlight intensity (25-75%) and the high sunlight intensity (75-100%). The multiple linier regression was employed as data analysis method. The result explained that the best sunlight intensity was the moderate (25-75%) with essensial oil rendemen as much 198,2 ml/kg. The result test F shown that in all variable (the sunlight intensity (X1), the average distance of intersect trees (X2), the tree species (X3) and numbers of intersect trees (X4)), significantly influened the production of essensial oil. The results of multiple linear regression analysis deliver the equation of Y = 2,133 + 0.037X1 + 0.275X2 - 0.226X3 - 0.049X4, the equation show a positive value means direcly proporsional to the result of yield by nutmeg essensial oil and a negative value means the opposite. 60,2% coeficient determination value, which means that the equation could explain 60,2% the variables influence to the nutmeg essensial oil rendemen. Keywords: essential oil, multiple linear regression, Myristica fragrans, sunlight intensity

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