Rosa Suryantini
Fakultas Kehutanan Universitas Tanjungpura. Jalan Imam Bonjol Pontianak 78124

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 18 Documents
Search

MASA INKUBASI PENYAKIT KARAT DAUN DAN TINGKAT KERUSAKAN PADA BIBIT PERUPUK (Lophopetalum multinervium) DI PERSEMAIAN PT. INHUTANI II MANDOR Rabuansyah, Bandi; kandar, Is; Suryantini, Rosa
JURNAL HUTAN LESTARI Vol 2, No 3 (2014): Jurnal Hutan Lestari
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v2i3.7325

Abstract

This study aimed to determine the level of damage to seedlings perupuk caused by leaf rust disease and know the incubation time is needed leaf rust pathogen that infects seedlings perupuk and study the development of leaf rust disease symptoms on seedlings perupuk. Observation of the stricken plant was conducted using descriptive, of direct observation in the field and conducted an assessment of the extent of damage caused by the attack while the incubation time in the laboratory. The results showed that the leaf rust disease incubation time attacking seedlings perupuk (Lophopetalum multinevium) were 19 hours and the percentage of plants damaged by leaf rust disease were 71.22%. This was high and affects the quality of perupuk growth at the sites. While the average level of crop damage due to attack perupuk leaf rust disease on study sites were classified in the category that was equal to 44.26%. Keyword: Perupuk, attack rate, decay rate, incubation time.
IDENTIFIKASI FAMILI ORCHIDACEAE DIKAWASAN HUTAN LINDUNG DESA SEKENDAL KECAMATAN AIR BESAR KABUPATEN LANDAK Manik, Firnando; Suryantini, Rosa; Husni, Harnani
JURNAL HUTAN LESTARI Vol 5, No 2 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i2.19230

Abstract

The purpose of this research is to know the different types of natural orchids (Orchidaceae) in the area of Sekendal Village protected forest, Air Besar sub-district, Landak District. This research was conducted by using the method of exploration that is placing by the line intentionally or purposive sampling with long trail 1 km and a width of 10 m left, right. Direct orchids identification that done in the field from both the shape of the leaves, stem (bulb), as well as the shape of the flower. From the research results show that at Sekendal Village protected forest has 14 Orchid genus like Agrostophyllum, Bulbophyllum, Coelogyne, Eria, Dipodium, Cerastostylis, Dendrobium, Bromhedia, Liparis, Mycaranthes, Thelasis, Trichotosia, Phalaenopsis. With each track has a different growing place State of the level of epiphyte, litofit or terrestrial. The first path found 8 Orchids genus, second path there are 11 genera are found that have a height of 200-300 m above sea level, the third line of Orchid genus found 4 that all included into the Orchid efipit as for the fourth line is found as many as 10 genus of orchids with an altitude above 300 m above sea level and more leads to secondary forest. From the result of that 4 path there are 14 genera comprising 28 species with a total of 46 individual orchids nature. Keywords: Protected Forest Orchidaceae, purposive, Transect
KORELASI KONSENTRASI IAA DAN BAP TERHADAP PERTUMBUHAN KULTUR JARINGAN SENGON (Paraserianthes falcataria) Nurhanis, Stefani Eka; Wulandari, Reine Suci; Suryantini, Rosa
JURNAL HUTAN LESTARI Vol 7, No 2 (2019): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v7i2.34552

Abstract

Sengon (Paraserianthes falcataria) is a fast growing plant that has high economic value. But the presence of sengon in the wild every year begins to decline due to the high demand for sengon wood. To increase the availability of sengon seeds, the propagation is carried out through tissue culture techniques. This study aims to determine the correlation between growth regulators (IAA and BAP) and the growth of sengon explants. This study used an experimental method with treatment of IAA concentrations of 0 mg/L, 0,5 mg/L, 1 mg/L, 1,5 mg/L, and 2 mg/L and BAP concentrations of 0 mg/L, 1 mg/L, 2 mg/L, 3 mg/L and 4 mg/L. Each treatment was repeated three times and analyzed using a simple correlation test analysis. The results showed, that the higher concentration of IAA and BAP, causes decreased growth of sengon explants, so the concentration of IAA and BAP gives a negative correlation, but provides a strong relationship to the percentage days of appearance of roots, shoots and leaves, plantlet height, root length, and number of leaves.Keywords : Correlation, plant tissue isolation method, sengon.
INTENSITAS SERANGAN RAYAP PADA Eucalyptus pellita DI AREAL HUTAN TANAMAN INDUSTRI PT. WANA HIJAU PESAGUAN KABUPATEN KETAPANG Simanjuntak, Octo Erwin; Suryantini, Rosa; Nurhaida, .
JURNAL HUTAN LESTARI Vol 7, No 1 (2019): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v7i1.32201

Abstract

PT. Wana Hijau Pesaguan developed the Eucalyptus plant in 2017 and had one year old (2017-2018). Observations Eucalyptus in PT. Wana Hijau Pesaguan was found termites that attacked Eucalyptus tree (Research and Development 2007). One of termites spesieses that had been indentified by  this company is Coptotermes curvignathus. However, until now there had not been known intensity of attacks and the level of damage on the Eucalyptus by termies. Besides there was also the lack of scientific information and publications relating to the level of damage and damage by termites in this area.This research aimed to count the intensity of termite attack in  E. pellita in PT. Wana Hijau Pesaguan.  This research was conducted from August to September 2018 using field survey. Plot samples were taken as many as 24 plots of size 20 x 20 m, the sampling intensity was 10% of the area of 9.4 ha. Data analysis in this study used analysis of the level of damage and intensity of the attack. The results showed this, the species of termites that attacked the E. pellita was Macrotermes gilvus. The level of attack were 0 - 9.25% with the average of damage intensity reached 3.21%.  It was categorized into mildly damaged.  The factors that influenced the occurrence of termite attacks were the amount of trash and wood stumps, trenches, and locations bordering rubber plants and forests around plants.Keywords: Eucalyptus pellita, the intensity of damage, the level of attack, Termite, Macrotermes gilvus
UJI PERTUMBUHAN FUSARIUM SP PEMBENTUK GUBAL GAHARU (AQUILARIA MALACCENSIS) PADA VARIASI MEDIA TUMBUH DAN SUHU Mirani, Eva Dwi; Burhanuddin, .; Suryantini, Rosa
JURNAL HUTAN LESTARI Vol 4, No 4 (2016): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v4i4.17328

Abstract

Agarwood is non timber products of Aquilaria malaccensis that have a high economic value, so it can developed to  improve the Indonesian public income. Agarwood formed as a respond of Fusarium sp infection. The success of  Fusarium sp infection in A. malaccensis influenced by medium and temperature of Fusarium sp growth. The growth of Fusarium sp is determined by the medium growth. Therefore, the study aimed was to obtain the optimal medium and temperature for the fungal growth. This research done to isolation Fusarium sp at PDA medium, rice extract and agarwood A. malaccensis extract. The treatment consisted were a medium type (PDA, rice extract, agarwood  A. malaccensis extract) and used temperature varition (5 oC, 29 oC, 35 oC), designed randomized complete factorial and the treatment was repeated three times. The results of this study indicated that agarwood A. malaccensis extract at temperature of 29 °C and 35 °C could increase better than rice extract. However at 35 o C PDA medium more increase formed than agarwood A. malaccensis extract. It can be concluded the growth effective if inoculation Fusarium sp done at temperature 29 oC – 35 oC with inoculums such as PDA dan agarwood A. malaccensis extract. Keywords : A. Malaccensis, Fusarium sp, PDA, rice extract
ASOSIASI FUNGI MIKORIZA ARBUSKULA (FMA) DENGAN TANAMAN JELUTUNG (Dyera spp.) PADA TANAH BERPASIR DI PASIR PANJANG KOTA SINGKAWANG Desti, Desti; Muin, Abdurrani; Suryantini, Rosa
JURNAL HUTAN LESTARI Vol 8, No 2 (2020): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v8i2.41112

Abstract

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.
PENGARUH WAKTU INOKULASI Trichoderma spp. DAN Glomus sp. TERHADAP PERTUMBUHAN SEMAI AKASIA (Acacia mangium) Setyaningrum, Prastuti M; Suryantini, Rosa; Wulandari, Reine Suci
JURNAL HUTAN LESTARI Vol 5, No 3 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i3.21842

Abstract

Acacia (Acacia mangium) is a plant spesies which can grow rapidly despite living on marginal land. One effort that can be done is by adding biological agents, for example Trichoderma and Glomus sp. The purpose of this research was to uncover the best inoculation time of Trichoderma and Glomus sp. to the growth of acacia. The research consisted of 14 treatments, involving : W0 : Control; W1: Trichoderma sp. 1 three days before Glomus sp.; W2: Trichoderma sp. 1 together Glomus sp.; W3: Trichoderma sp. 1 seven days after Glomus sp.;  W4: Trichoderma sp. 2 three days before Glomus sp.; W5: Trichoderma sp. 2 together Glomus sp.; W6: Inoculation with Trichoderma sp. 2 seven days after Glomus sp.;  W7: Trichoderma sp. 3 three days before Glomus sp.; W8: Trichoderma sp. 3 together Glomus sp.; W9: Trichoderma sp. 3 seven days after Glomus sp. These treatments were repeated for three times until 30 exprerimental units were gathered. The research was designed based on a completely ramdomised design. The data were observed for 2 months including the data about diameter and height. Result of the observation was analysed quantitatively using ANOVA. It was then continued by Honestly Significant Difference (HSD) test. The result indicated that providing Trichoderma sp. 3 three days before Glomus sp. (W7) did not give a significant increase in height. Meanwhile, inoculation Trichoderma sp. 1 together with Glomus sp. (W2) yielded a significant value for the increase in diameter. Finally, it is hoped that results of this research can be used and applied on other forest plants such as Pinus. Keyword : Acacia, Diameter, Glomus, Height, Trichoderma
POTENSI TRICHODERMA ISOLAT LOKAL SEBAGAI DEKOMPOSER SERASAH AKASIA (Acacia mangium) Junita, Yulita; Suryantini, Rosa; Wulandari, Reine Suci
JURNAL HUTAN LESTARI Vol 5, No 2 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i2.20098

Abstract

Acacia produce a litter of in the forest industry plants are not utilized and difficult to decompose so it can be acumulotion of litter. The decomposition can be accelarared with the use of local Trichoderma isolates. But, it is not yet known the best local isolates and concentration of trichoderma as the decomposers of acacia litter. The aim of research to get the kind of local isolate and concentrate the best Trichoderma as decomposers of litter acacia. This research was conducted at the Laboratory of Silviculture Forestry University Tanjungpura Pontianak for 8 months starting from the preparation, execution, analisis this research method is done in the form of factorial experimental design completely randomized experimental with design. The treatments consisted of two factors, namely the local isolates of Trichoderma (Trichoderma sp. 1 = T1; Trichoderma sp. 2 = T2; Trichoderma sp. 3 = T3, Trichoderma sp. 4 = 4) and the concentration of Trichoderma suspension (10-5 ml = k1, 10-6 ml = k2, 10-7 = k3). The combination total of treatments were 12 units with three replications. The observed data is decomposed pH value before and after decomposed, the mycelium dry weight, the percentage of  moisture litter, the C / N ratio and the content of phosphor (P) and potassium (K). Based on the results turned out to isolate Trichoderma sp 2 with a concentration of 10-5 is the best decomposers to accelerate proser acacia mangium litter decomposition. Time or the length of the decomposition can be extended for more or less five months to get maximum results.Keywords: Acacia mangium, Concentration, Decomposers, Litter’s, Trichoderma.
PENGENDALIAN HAYATI PATOGEN BUSUK AKAR (Ganoderma sp.) PADA ACACIA MANGIUM DENGAN Trichoderma spp. ISOLAT LOKAL SECARA IN VITRO Fitriani, .; Suryantini, Rosa; Wulandari, Reine Suci
JURNAL HUTAN LESTARI Vol 5, No 3 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i3.20631

Abstract

Acacia mangium is one of the favorite types of plants in HTI, but in its growth often occurs root rot disease. Ganoderma sp. is one of the root causes of root rot disease. Control can use biological agents such as Trichoderma local isolates. This study aims to determine the power of antagonists and get the best local Trichoderma isolates to control root rot by Ganoderma with in vitro method. The research was conducted at Silviculture Laboratory of Faculty of Forestry, Tanjungpura University for 4 months. The method used is an experimental method. Consists of isolation and characterization of isolates Ganoderma sp. And Trichoderma spp. antagonist test against Ganoderma sp. local isolate Trichoderma spp. consists of 4 treatments namely Trichoderma sp1 (T1), Trichoderma sp2 (T2), Trichoderma sp3 (T3), Trichoderma sp4 (T4). Each treatment was placed in conjunction with Ganoderma sp. On top of the PDA. An antagonistic test was performed with a completely Randmized Design pattern. Each treatment was repeated 3 times so that there were 15 experimental units. The result of the antagonistic inhibitory test of Trichoderma sp. Against Ganoderma sp.  Shows a different percentage of inhibition. The percentage of inhibition on T1 treatment was 58.06%, T2 was 43.80%, T3 was 48.11% and T4 was 38.09%. The result of variance analysis showed the treatment of isolate Trichoderma spp. Has no significant effect on inhibiting root rot disease pathogen caused by Ganoderma sp. Keywords: Acacia mangium, Ganoderma sp., In Vitro, Trichoderma spp.
EFEKTIVITAS TRICHODERMA DAN PUPUK KANDANG TERHADAP PERTUMBUHAN TINGGI DAN DIAMETER SEMAI ACACIA MANGIUM PADA TANAH ULTISOL Hardianus, .; Suryantini, Rosa; Wulandari, Reine Suci
JURNAL HUTAN LESTARI Vol 5, No 2 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i2.20444

Abstract

This research aimed to obtain a dose of Trichoderma sp. and manure that effective on the growth of Acacia seedlings in Ultisol soil. The research design was a Factorial Complete Random Design that is consisting of 2 (two) factors which are dose of Trichoderma sp. and dose of cow manure. Dosage of Trichoderma sp. consisting of: 0 gr/polybag (T0), 5 gr/polybag (T1), 10 gr/polybag (T2), and 15 gr/polybag (T3). Dosage of cow manure consisting of: 0 gr/polybag (K0), 50 gr/polybag (K1), 100 gr/polybag (K2), and 150 gr/polybag (K3). Each treatment was repeated 3 (three) times so that the total amount of treatment was 48 seedlings. The parameters observed were the height and diameter of the seedlings carried out for 2 (two) months at the Silviculture Laboratory of Forestry Faculty, Tanjungpura University.  The result showed the dose of Trichoderma sp., manure and its interaction had no significant effect on the growth of seedlings height. Dose of Trichoderma sp. was very significant effect on the growth of seedlings diameter, while manure and its interaction have no real effect. The best dose for seedlings diameter growth is T3K2 treatment (dosage 45 gram Trichoderma sp. and 100-gram cow manure). Keywords: Acacia mangium, Manure, Trichoderma sp.