Indriyanto Indriyanto
Department of Forestry, Faculty of Agriculture, University of Lampung

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Produksi Seresah pada Tegakan Hutan di Blok Penelitian dan Pendidikan Taman Hutan Raya Wan Abdul Rachman Provinsi Lampung Riyanto Riyanto; Indriyanto Indriyanto; Afif Bintoro
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.185 KB) | DOI: 10.23960/jsl111-8

Abstract

Litter had an important function in a forest. The nutrients were derived from the litter is useful to improve the soil. The purposes of the research to determine the production of the litter, the analyse plants species and stands density, the correlation between litter production and stands density, the correlation between litter production and the number of plant species at research and educational block of Wan Abdul Rachman Great Forest Park. The research was conducted on October-December 2011 by using partition-line method. The litter was taken on a plot 1 m x 1 m in size systematically. The plants species found in the research area were avocado, palm, bisoro, cocoa, dadap, duku, durian, rubber, hazelnut, coffea, jackfruit, petai, betel nuts, rambutan, rosewood, and gnetum gnemon. The density of stands in research area dominated by cocoa trees. Based on the correlation analysis, forest stand density known influence the litter production. The high forest stand density increases litter production, whereas the correlation among litter production and the number of plant species is less influential, because not every plant able to fall out the leave easily. Keywords: forest stands, litter, research and educational block
Inventarisasi Pohon Plus dalam Blok Koleksi di Taman Hutan Raya Wan Abdul Rachman Moses Hasibuan; Indriyanto Indriyanto; Melya Riniarti
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.097 KB) | DOI: 10.23960/jsl119-16

Abstract

Plus tree inventory was an activity for collecting and compiling data. Collection block was an area within Great Forest Park region that contains different types of plant, either endemic or non-endemic plants, which serves for protection and preservation, research, science, education, support the cultivation, culture, tourism and recreation. The information about the existence of plus trees on the collection block still rare. So, plus tree inventory still necessary to fulfill the data. This research was held in Wan Abdul Rachman Great Forest Park Collection Block at February to March 2012. The aim of this research is to identify the trees which has plus tree criteria. Data collected by using line terraced layers method which placed systematically. The collected data include the types of trees, trunk diameter, branch height, trunk straightness, tree's health condition, fruit production, branch corner, sphericity form of circumference stem, and the location of the plus tree. Based on the results, there were 9 species of trees that identified as plus trees, 7 species of wooden trees, which are 3 taboo trees (Tetrameles nudiflora), 1 dadap tree (Erythrina fusca), 1 purple coral tree (Pterospermum javanicum), 1 sandpaper tree (Ficus ampelas), 6 kapok trees (Ceiba pentandra), 1 red cedar tree (Toona sureni), 1 mindi tree (Melia azedarach) and 2 species of MPTS trees, 1 durian tree (Durio zibethinus), and 1 mango tree (Mangifera indica). Total number of individual tree that meets the plus tree criterias are 16 trees. Keywords: inventory, plus trees
Pengaruh Jumlah Ruas Cabang Terhadap Pertumbuhan Setek Bambu Hitam (Gigantochloa Atroviolacea) Wenty Irvantia; Indriyanto Indriyanto; Melya Riniarti
Jurnal Sylva Lestari Vol. 2 No. 1 (2014): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.93 KB) | DOI: 10.23960/jsl1259-66

Abstract

Black bamboo (Gigantochloa atroviolacea) is one of the famous bamboo species used, because it has many functions. The effort to maintain bamboo population is by cultivation. Generative cultivation of bamboo is difficult, so that vegetative cultivation by branch cuttings is carried. The aim of this research were to know the effect of number of internodes on black bamboo branch cuttings and the best influence on percentage of life and growth. The experiment used Completely Randomized Design (CRD) with 3 treatment sand 5 replications. The treatment were number of black bamboo branch, which were 2, 3,and 4 internodes. Eachbranchesplantedin polybag had filledwith top soil.The growth variables that measured were the percentage of life, number of shoots, length of shoot, diameter of shoot, number of leaves and length of root. The results showed that the number of black bamboo branch internodes influenced on length of shoot and number of leaves. Black bamboo branch with 4 internodes was the best result to growth of black bamboo branch cuttings because of highest value on length of shoot (3.84 cm) and number of leaves (4.90 sheet). Keywords: black bamboo, branch cuttings, number of internodes
Inventarisasi Jenis Tumbuhan Obat Di Hutan Mangrove Desa Margasari Kecamatan Labuhan Maringgai Lampung Timur Supriyanto Supriyanto; Indriyanto Indriyanto; Afif Bintoro
Jurnal Sylva Lestari Vol. 2 No. 1 (2014): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.646 KB) | DOI: 10.23960/jsl1267-76

Abstract

Mangrove forest in Lampung Mangrove Center (LMC) Margasari village at East Lampung is one area that still has good condition to keep a variety of potential to be explored such as medicinal plants. Purpose of this study was to determine of species, diversity, and functional properties of mangrove plants for medicine. Research conducted in April 2012 in village 12 Translok at Margasari village East Lampung. Data retrieval is using method checkered lines, and interviews with the public, as well as literature. Number of sample plots used 12 pieces. Data were analyzed using the formula density, relative density, frequency, relative frequency, important value index, and diversity index Shannon. Based on the result of the research have been known 7 species of plants as medicine, among others: api-api (Avicennia marina) to cure rheumatism and toothache; jeruju (Acanthus ilicifolius) cure for cancer and diabetic; nipa (Nypa fruticans) medication for asthma and diabetes; bakau (Rhizophora apiculata) for antiseptic; beluntas (Pluchea indica) for body odor; jenu (Derris trifoliata) for a laxative; and tapak kuda (Ipomoea pescaprae) to cure wounds and ulcers. Api-api is a dominant plant and widest spread because it has an important index as value high as 144.24% and frequency 67.5%. Beluntas plant has the highest density of 12,708.33 individual/ha.Mangrove forest Margasari village at village 12 Translok have low diversity, because the calculation of the index obtained values Shannon H'=0.44. Keywords: inventory, mangrove forest, medicinal plant
Respon Setek Cabang Bambu Kuning (Bambusa Vulgaris) Terhadap Pemberian Aia Yosepin K. Simangunsong; Indriyanto Indriyanto; Afif Bintoro
Jurnal Sylva Lestari Vol. 2 No. 1 (2014): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.117 KB) | DOI: 10.23960/jsl1295-100

Abstract

Yellow bamboo is one of the bamboo species which used for industrial and house-hold materials, because it has a thick trunk outer layer, length of fiber, and beautiful shape. The success of cuttings grown yellow bamboo branch was lack. To increase the success of the yellow bamboo branches grow cuttings used growth regulators. Therefore, the research was conducted by giving indole acetic acid on yellow bamboo branch cuttings. The objective of this research was to known the growth of yellow bamboo branch cuttings by giving indole acetic acid and known the concentration of the indole acetic acid were the best influence on the growth of yellow bamboo branch cuttings. The research was designed with complete randomized design (CRD) with five treatment, five experimental units, and five branch cuttings for each experimental unit. The concentration of indole acetic acid (IAA) was 0 ppm, 100 ppm, 200 ppm,300 ppm, and 400 ppm. To test the homogeneity range done with Bartlett test, the data will be tested by analysis of variance and then further tested with honestly significant difference test. Yellow bamboo branch cuttings growth by percentage of life parameters, number of shoots, shoot length, shoot diameter, and a significant number of leaves is known, whereas for root length parameter is not significant.  Keywords: branch cutting, indole acetic acid, yellow bamboo
Keberhasilan Hidup Setek Pucuk Jabon (Anthocephalus Cadamba) Dengan Pemberian Beberapa Konsentrasi Rootone-F Ferdiansyah Putra; Indriyanto Indriyanto; Melya Riniarti
Jurnal Sylva Lestari Vol. 2 No. 2 (2014): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.808 KB) | DOI: 10.23960/jsl2233-40

Abstract

Kadam (Anthocephalus cadamba) is one types of three possible to develop in plantation forest or public forest to suply log necessity in Indonesia. However, the silviculture information on kadam development is still limited especially in providing nurseries. The objective of this research was to find out survival percentage, shooting ability, and rooting ability of kadam shoot cutting with some concentrations of Rootone-F addmited. This research used completely randomized design with four treatments and five replications. Treatments were soaking the bud of kadam shoot cuttings with some of the following Rootone-F concentrations: 0 ppm, 100 ppm, 200 ppm, and 300 ppm. Variables to observe were survival percentages, shoot lengths, shoot diameters, root lengths, and leaf numbers. The results showed that Rootone-F addmited with 200 ppm concentration resulted in the best shoot height, root length, and leaf numbers of kadam shoot cuttings compared with concentrations of 1 ppm, 100 ppm, and 300 ppm. The kadam shoot cutting with 200 ppm Rootone-F concentration had 96% survival, 20.47 cm shoot length, 19.60 root length, and 6.18 leafs. The conclusion was that the concentration of 200 ppm Rootone-F gives the best results. Keywords: kadam, Rootone-F, shoot cutting
Inventarisasi Hama Persemaian Di Hutan Tanaman Rakyat Desa Ngambur Kecamatan Bengkunat Belimbing Kabupaten Lampung Barat Ikro Fajar Surachman; Indriyanto Indriyanto; Agus M. Hariri
Jurnal Sylva Lestari Vol. 2 No. 2 (2014): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.396 KB) | DOI: 10.23960/jsl227-16

Abstract

Forest pest inventory is research activity to gather and arrange the data of pests existing in seedling periode. Pest inventory activites are used to determine pest types, the number and crop damage order to apply appropriate control. This research was aimed to identity the pest types and its attack levels at community plantation forest nursery. This research was conducted at Community Plantation Forest in Ngambur Village of Bengkunat subdistrict, West Lampung on April to May 2012. The collected data was identified taxonomically. The data was included of pest types, pest density, attack levels, and demages. All samples were collected using systematic method in diagonal pattern. The results was obtained 9 types in kadam nurseries, white albizia, and umbrella tree, which caterpillars (Daphnis hypothous), locust (Locusta migratoria),moths (Hyblaea puera), bag worm (Pteroma plagiophelps), bug (Cosmoleptrus sumatranus), mealy bug (Planococcus citri), leaf caterpillar (Doleschallia polibete), yellow butterfly (Eurema spp.), snail (Achatina fulica) and 1 type of insect predators that weaver ants (Oecophylla smaragdina). Insect population was high enough but not damage the plant nursery while the most dangerous insect pest was a bag worm (Pteroma plagiophelps) and moth (Hyblaea puera). Bag worm larvae cause severe damage, the loss on the leaves. The extent of damage by insect pests classified in the category of still mild attacks. Pest control can be done mechanically or chemically. Keywords: community plantation forest, inventory of pests, Lampung, nursery
Upaya Perbaikan Pertumbuhan Tanaman Jabon (Anthocephalus Cadamba) Dengan Pemberian Pupuk Kompos Kotoran Sapi Pada Beberapa Ketinggian Tempat Agus Wahyudi; Indriyanto Indriyanto; Melya Riniarti
Jurnal Sylva Lestari Vol. 2 No. 2 (2014): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (84.821 KB) | DOI: 10.23960/jsl2217-24

Abstract

Kadam is one of short rotation plant species because it has a rapid growth. Kadam does not require special treatment to maintenance. General plant maintenance in the early planting was fertilizer. The organic fertilizer such as cow manure compost which added to soil could increase the nutrients substance. The objectives of this research to know the effect of cow manure compost, the best dosage of cow manure compost, and the best altitude for kadam growth. The research was conducted on June - October 2012 at community plantations forest area in West Lampung. The research was arranged in the Block Randomized Design (BRD) with 3 block and 6 treatment. The altitude as block were 124 m, 118 m, and 116 m above sea level. The dosage cow manure compost as treatment were 0 kg/plant, 2 kg/plant, 3 kg/plant, 4 kg/plant, 5 kg/plant, and 6 kg/plant. Bartlett test, analysis of variance, and least significant difference at 5% level were used to analysis of this data. The results of this research showed that dosage of cow manure compost had no significant effect on all variables. Where as the altitude had effect on numbers of leaves only. Keywords: altitude, cow manure, fertilizer, kadam
Respon Pertumbuhan Bibit Jabon (Anthocephalus Cadamba) Dengan Pemberian Kompos Kotoran Sapi Pada Media Penyapihan Rekha Prananda; Indriyanto Indriyanto; Melya Riniarti
Jurnal Sylva Lestari Vol. 2 No. 3 (2014): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (121.795 KB) | DOI: 10.23960/jsl3229-38

Abstract

Kadam is one type of fast growing trees species. One of the factors that affect plant growth are nutrients, the use of organic fertilizer such as cow manure compost soil mix additive during planting can increase nutrient substances in the soil that plants need for growth. The purpose of this experiment was to study the growth response of kadam seedling at different mixing ratio betwen soil with cow manure compost at seedling growth media and the best comparison of soil mixed with cow manure compost where gave the best effect on the growth of kadam seedling. The experiment was conducted from March until June 2012 in the nursery PT Subur Anugrah Sejahtera, District of Kaur, Sub District Air Palawan. The method used in this experiment was randomized block design (RBD) with 5 groups and 5 treatments.  Treatment of this experiment were growth media consisted of top soil, top soil + compost (1:1), top soil + compost (1:2), top soil + compost (1:3) and top soil + compost (1:4). Each experimental unit consisted of 10 seedlings. Similarity variety tested with Bartlett test, then performed analysis of variance and comparison of average values between treatments with HSD test, all the tests done at 5% significance level. The results showed that composition of soil and cow manure compost significantly affect to height, seedling height, dry weight of root, and seedling quality index. Composition of soil and cow manure compost 1:2 resulted the best of high growth, seedling high, dry weight of root, and the best seedling quality index respectively 42.64 cm, 40.56 cm, 10.22 g, and 8.73 g. For further research recommended to conduct the same study by replacing the type by cow manure compost white chiken manure compost as a growth media seedling so, can obtain new knowledge about the type of compost with for growth media. Keywords: compost, growth media, kadam
Identifikasi Jenis Epifit Dan Tumbuhan Yang Menjadi Penopangnya Di Blok Perlindungan Dalam Kawasan Taman Hutan Raya Wan Abdul Rachman Gesta Rama Noprian Nawawi; Indriyanto Indriyanto; Duryat Duryat
Jurnal Sylva Lestari Vol. 2 No. 3 (2014): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.975 KB) | DOI: 10.23960/jsl3239-48

Abstract

Epiphytic is one among the plants that attaches and grows on other plants for sunlight, water, air, and minerals. The existence of epiphytes is very important for forest ecosystems due its ability to provide a place for the ants and the other organisme. The objective of this study were to identify the species of epiphytes, species of cantilever plant, and to know the number of cantilever plant species associated with the species of epiphytes in Wan Abdul Rahman Great Forest Park. This research was conducted at the protection block, Wan Abdul Rahman Great Forest Park, particularly in the area of Way Balau Sub-watershed. This research was conducted during September to October 2013. Epiphytes and cantilever plants species were inventoried in a sampling intensity of 0,2% taken from 796,50 ha of total area of protection blocks, therefore the large of sample plot is 1,593 ha. The size of each sample plot is 400 m2 or 20 m x 20 m, therefore the total number of sample plots are 40 plots. Observed variables were the species and the number of epiphytes , species of cantilever plant and its number, and the importance alue index for each species. The result of the study showed that plant are 7 species of epiphytes and 16 species of cantilever plant. The highest importance value index (IVI) of epiphytes is paku sepat (59,14%). Â The highest IVI of cantilever plant is pulai (30,91%). The most abundant cantilever plant growed by epiphytes is pulai (Alstonia scholaris), pinangsi (Villebrunea rubescens), enau (Arenga pinnata), and medang gabong (Litsea firma). Result of the study showed that epiphytic mostly found on the cantilever plant that has thicker bark, groove bark, stringy bark, and a tough bark. Keywords: block protection forest park wan abdul rahman, epiphytes , epiphytic plants crutch