Journal Jurnal Perbenihan Tanaman Hutan

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21 articles
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Nfn Supriyanto, Fakultas Kehutanan Departemen Silvikultur, Iskandar Z. Siregar, Ani Suryani, Aam Aminah, Dede J. Sudrajat
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 103-114; doi:10.20886/bptpth.2017.5.2.103-114

Abstract:Pongamia (Pongamia pinnata (L.) Pierre) is one of a potential tree species to produce biodiesel. Pongamia-based biodiesel development program is still constrained by the availability of quality and quantity seeds due to the limited of seed sources. The purpose of this research was to identify the morphological diversity of fruits, seeds and seedlings from 5 populations in Java Island. Randomized completely design and randomized block design were used to assess the difference of fruits, seeds and seedlings morphological characteristics among populations. Principal component and hierarchy cluster analysis were used to explain variation pattern among populations. The results showed that the difference of populations was significantly affected by the difference of fruits, seeds, and seedlings morphology of pongamia. Seeds from Carita population showed good quality seed indicators with moisture content of 19.31%, and germination capacity of 74.50%. Sturdiness quotient of the seedling was 10.78. Contribution of genetic factor was higher than environtment factor is relation to the differences of morphological characteristics of fruits, seeds and seedlings of pongamia. Morphological character of the five populations can be divided into 3 groups, i.e. the first group of Batukaras and Kebumen, second group of Alas Purwo and Baluran, and group 3 was Carita.
Nfn Suhartati, Balai Penelitian Dan Pengembangan Lingkungan Hidup Dan Kehutanan Makassar Indonesia
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 115-124; doi:10.20886/bptpth.2017.5.2.115-124

Abstract:Pericopsis mooniana Thw has a hard seed coat, making it difficult to germinate. This type of seed needs of seed selection and scarification to speed up the germination process, in order to produce a high germination and good seedling. The study aims to increase the value of germination of P. mooniana seed through seed selection based on seed color and scarification techniques. Experimental design used was completely randomized design (CRD) with two factors and three replications. The first factor is seed color (W0 = no selected seeds, W1 = yellowish seeds and W2 = brownish seeds). The second factor is scarification seeds (S0 = without soaked, S1 = soaked in cold water for 24 hours, S2 = soaked in hot water (800C) for 24 hours and S3 = soaked in sulphuric acid/H2SO4 (0.1 M) for 20 minutes. Parameters observed were first time of germination, speed of germination and germination percentage. This study was conducted at the greenhouse, Forestry Research Institute of Makassar in July - August 2015. The result of study showed that yellowish seeds and brownish seed can shortened the time of first germination and increased the germination speed by using scarification technique of seed soaking in hot water to increase germination rate up to 76%.
Muhammad Zanzibar, Balai Penelitian Dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 95-102; doi:10.20886/bptpth.2017.5.2.95-102

Abstract:The process of initial handling of seeds is extraction which is using dry or wet methods. The objective of this research was to find out the suitable pod drying period for extracting seeds and decreasing of seed moisture content of sengon laut. The experimental design used was a complete randomized design (CRD). The main factor was drying method under the sun and using seed drier (40C). The results showed that either sun drying for 2 days or use seed drier for 32 hours was the best method for extraction and decreasing of seed moisture content. Drying pods was enable to obtain safe seed moisture content for long-term storage of Falcataria molucana seeds.
Endang Pujiastuti, Balai Penelitian Dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 81-94; doi:10.20886/bptpth.2017.5.2.81-94

Abstract:Standard germination does not always indicate seed lot potential performance, especially if field germination conditions are less than optimal. Seed vigour tests therefore have been proposed to detect more accurate differences in potential seed lot performance. This study is aimed to obtain more precise method to assess Acacia mangium seed vigour correlated to germination success in a greenhouse and normal seedling emergency in a nursery. Tests were conducted on 13 seed lots collected from some certified seed sources. Seed testing and nursery activities were carried out at the Seed Laboratory of Forest Tree Seed Technology Research & Development Centre, Bogor. Experimental designs were arranged in a completely randomized design with four replications for laboratory tests (standard germination, germination index, number of normal seedling in the first count, radicle length, tetrazolium test, controlled deterioration test, accelerated aging, conductivity test), germination in a greenhouse and direct sowing in a nursery. Results showed that all tests were significantly different for ranking seed vigor in the different seed lots. Seed lot from Subanjeriji-2 provided the best germination performance in the greenhouse and direct sowingin the nursery, followed by seed lot from Parungpanjang, while seed lot from Kenangan had the lowest germination performance. The relationship between some laboratory tests, i.e. top paper test, germination index, and electrical conductivity test, and the greenhouse and nursery tests were significant. The electrical conductivity test had the highest accuracy with R2= 0,6278 for greenhouse test and R2= 0,4057 for nursery test. Overall, among all the laboratory tests, electrical conductivity test showed seeds well, so the usage of the electrical conductivity test for predicting normal seedling emergence could be suitable in A. mangium nursery programs.
Kurniawati Putri, Balai Penelitian Dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 71-79; doi:10.20886/bptpth.2017.5.2.71-79

Abstract:The role and function of forest area with special purpose (KHDTK) Haurbentes among other are the source of seeds and germplasm of Shorea spp. The information of the potency and dominance of Shorea spp. in KHDTK Haurbentes was indispensable in formulating the seed source management strategy. The aim of the research was to determine the regeneration level of Shorea spp. in Haurbentes KHDTK. The research was conducted in KHDTK Haurbentes in Jasinga, Bogor District. The research method used vegetation analysis. Observation plots were built based on the design of cluster plot Forest Health Monitoring circular (annular plot). Number of cluster plot of 6 pieces was set purposively. The results showed that S. pinanga was dominant species for the level of the tree, pole, sapling and seedling in cluster plots 1 and 7. The vegetation of trees level were dominated by S. stenoptera (cluster plots 2, 6, 8) and S. selanica (cluster plot 3). Vegetation of pole level were dominated by S. stenoptera (clusters plots 6 and 8) and S. selanica (cluster plots 2 and 3). H. mangarawan and S. mecisopteryx were dominant species for the level of sapling in clusters plot 6 and 8. Peuris and harendong (Melastoma polyanthum Bl) were dominant species at sapling level in cluster plots 2 and 3 for shrubs, while for species of shorea, the dominant species were S. stenoptera (clusters plots 2) and S. selanica (clusters plots 3). The dominant species at seedling level were H. mangarawan (clusters plot 2), S. mecisopteryx (clusters plot 3), S. selanica (clusters plot 6) and S. Stenoptera (cluster plots 8). The density of dominant species for the tree level was varied among cluster plots with a range of 55-143 individuals/hectare. Shorea spp. in KHDTK Haurbentes was sufficient with the number of individual regeneration more than adult trees. The sustainability of seed sources Shorea spp. in KHDTK Haurbentes in the future is quite assured.
Eliya Suita, Balai Penelitian Dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 125-135; doi:10.20886/bptpth.2017.5.2.125-135

Abstract:Turi (Sesbania grandiflora (L.) Pers) is belong to Leguminosae which is a species of non-timber product utilized as food, energy, medicine, fodder and others. Turi seed has a hard coat, so that to get a maximum germination, its required pre-treatments before the seeds are sown. The objective of the study was to determine the physical characteristics of the seeds, and the approriate of pre-treatments methods to find out the viability of turi seeds. Physical characteristics are examining the water content and weight of 1000 seeds. The pre-treatments including: 24 hours water soaked seeds, hot water soaked seeds (temperature1000C) and let them cooler for 24 hours, 10 minutes sulfuric acid soaked seeds, 20 minutes sulfuric acid soaked seeds and no treatment. Viability examination methods consisted of the testing of top of paper, between paper and standed-pleated paper. The tested using opened soil-sand (v/v 1:1) mixture media and closed soil-sand (v/v 1:1) mixture media. The best pre-treatment that are enable to increase the viability of turi seeds are seeds soaked with sulfuric acid for 20 minutes and sown in a laboratory by using testing methods of either top of paper or standed plated of paper placed in a germinator.
Febrina Artauli Siahaan
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 1-11; doi:10.20886/bptpth.2017.5.1.1-11

Abstract:The availability of kesambi seed for planting is not always sufficient, so the proper seed storage to ensure the availability and maintenance the seed quality need to know. The purpose of this research was to determine the effect of different storage periods and storage conditions towards seed germination of kesambi. This experimental design used completely randomized design, consists of with 2 factors, storage conditions (room temperature, sealed jar consist of silica gel and low temperature) and storage periods (30, 60, 90 days) with 3 replications for each treatment. The results showed that the germination percentage, germination rate, the initiation of germination and shoots emergence were affected by the storage conditions, while storage periods and the interaction of the factors only affected the germination rate. The highest germination (55 %) found in seeds stored in sealed jars contain of silica gel for 30 days, with a germination rate of 7 days and the initiation of germination and shoots emergence of 12 days and 17 days, while the lowest value were found in seeds which stored at low temperatures.
Muhammad Zanzibar
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 51-60; doi:10.20886/bptpth.2017.5.1.51-60

Abstract:One of the determinants of the success of germination is when the dormancy inhibiting factor in the seed has been controlled. When experiencing dormancy symptoms then before germination need to do preliminary treatment. This study aims to determine the type of dormancy and pretreatment for breaking the dormancy of balsa seeds.The experimental design used was a complete randomized design (RAL). The observed variables were germination capacity (GC), mean days germination (MDG) and germination value es (GV). The preliminary treatment used included the use of 80 oC hot water, the use of water with room temperature 27 oC, giberalin acid (GA3), hydrogen peroxide (H2O2), and without treatment (control). The results show that the dormant type of balsa seed is a combination of external dormancy (skin hardness) and internal dormancy (embryo). The best preliminary treatment was obtained on soaking the seeds in GA3 (75 ppm) for 24 hours.
Kurniawati Purwaka Putri, Yulianti Bramasto
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 13-22; doi:10.20886/bptpth.2017.5.1.13-22

Abstract:Sengon (Falcataria moluccana (Miq. Barneby & J.W.Grimes) is one of timber producing species of high economic value. Recently, sengon productivity decreases due to pests and diseases, attack is caused by the fungus Uromycladium tepperianum (SACE.) McAlp. The control of gall rust disease at seedling level is important, because the stadia nursery are the most vulnerable. The aim of this research was to determine the effectiveness of the type of control in supressing the fungus of U. tepperianum and the growth of sengon in a nursery. The research design used a completely randomized design (CRD) with five treatments of gall rust disease control types i.e. control ; biological fertilizer of Plant Growth Promoting Rhizobacteria (PGPR) (5 g -L of water), biofungicide (5 g-L of water); chemical fungicide (2 g-L of water); and boron (300 ppm). Each treatment consisted of 20 seedlings repeated 4 times. The observed response were the number of fungal spores, diameter and height of seedlings. In addition, calculation of the effectiveness of the type of controller was counted. The results showed that after two weeks of fungal infections, the highest seedling growth was the seedling treated with fungicide (0.53 cm), while the lowest was the seedling treated with biological fungicide (0.32 cm). PGPR, fungicide biological, chemical fungicides and boron did not effective to the attack of fungus and to increase the growth of height and diameter of sengon seedling after the 4th week of the fungus infection.
Sri Muryati, Irdika Mansur, Sri Wilarso Budi
Jurnal Perbenihan Tanaman Hutan, Volume 5, pp 35-50; doi:10.20886/bptpth.2017.5.1.35-50

Abstract:Mining activities results on environmental degradation and finally on ecosystem damage. Legume cover crop forming symbiosis with beneficial soil microorganism is widely well known to be used for degraded land reclamation such as in post mining area. Desmodium spp. is one of legume cover crop forming symbiosis with arbuscular mycorrhizal fungi (AMF) and rhizobium symbiosis. This study aimed to analyse the growth respond D. ovalifolium that has inoculated AMF from rhizosfer of 4 types of Desmodium spp. There were two factors that are AMF inoculation and media treatment, were applied: with or without inoculation of AMF, and with or without applications of compost. Inoculation of AMF and compost application increased height of O. sumatrana two week after planting (WAP). Single inoculation of AMF into desmodium spp. improved height variables of stem significantly, total biomass, sprout biomass, and number of postule roots as well. Combination of compost and post mining soil had the highest increased in height 2 WAP and roots biomass of Desmodium spp. This research implies that AMF application is an important key for effective methods in improving plant grow in post mining area.
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