Articles

PERANAN TUMBUHAN LIAR DALAM KONSERVASI SERANGGA PENYERBUK ORDO HYMENOPTERA Erniwati, Erniwati
JURNAL TEKNOLOGI LINGKUNGAN Vol 10, No 2 (2009): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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The role of the wild plants in relation to the conservation of the Indonesian insect pollinators was studied at several areas of Java. Three of direct observation methods were applied: study of biodiversity and observation on the wild flowers and the insect pollinators as well, and the behaviour of the insects. The flowers of wild plants were relatively smaller and paler in colour, however they were more attractive to insect pollinators than cultivated plants. Flowering time of the wild plants was mostly during wet seasons, contrary to that of the cultivated plants which was mostly during dry seasons. Our observation indicated that these wild plants are the food resources of insect pollinators during wet seasons. Observation data support the importance of wild plants to supply food to insect pollinatorsduring wet seasons. Management of wild and cultivated plant environments is necessary to conserve insect pollinators.
UJI RETENSI DAN EFEKTIVITAS TANAMAN KUMIS KUCING (Orthosiphon aristatus) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp) PADA KAYU DURIAN (Durio zibethinus) Mariana, Eka; Ariyanti, Ariyanti; Erniwati, Erniwati
Warta Rimba Vol 1, No 1 (2013)
Publisher : Warta Rimba

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Nowadays, utilization ofnon-durable wood species in Indonesia is one alternative to meet the needs ofthe wood. Use natural preservatives such as Orthosiphon aristatus in natural wood preservation processis highly recommended as environmentally friendly.This study was aimed to determine retention and the effects of Orthosiphon aristatus leaves extracts as preservation material of Durio zibethinus wood on the Coptotermes sp. Attacks. Regency and the laboratory of Forestry Science, Tadulako University, from May to June 2013. The study was using completely randomized design with factorial pattern. The treatment of study was applying two factors. First, concentration of Orthosiphon aristatus extracts with three levels, namely; 9.09% (A1), 16,67% (A2), and 23,07% (A3). Second, Dipping time with three levels,namely: 1 day (B1), 3 days (B2), and 5 days (B3). The results showed that the highest retention value (3,538g/cm3) was achieved by the combination treatment between concentration 23,07% and dipping time 5 days (A3B3) while the lowest retention value (0,562g/cm3) was achieved by the combination treatment between concentration 9,09% and dipping time 1 day (A1B1). Hence, the lowest effectivity of preservation materials indicated by the highest weight loss,was achieved by A1B1 combination treatment (3,37%) while the lowest (highest effectivity) was achieved by (A3B3) combination treatment (1,88%). Keywords: Concentration, Dipping time, Orthosiphon aristatus, Durio zibethinus, Coptotermes sp.
RETENSI DAN EFEKTIVITAS BAHAN PENGAWET EKSTRAK DAUN CENGKEH (Syzygium aromaticum) PADA KAYU DURIAN (Durio zibethinus) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Toleng, Fitriyani N.; Erniwati, Erniwati; Ariyanti, Ariyanti
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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Effectiveness of natural substance as preservative agent is needed to be further observed. One of the substances is extract of Glove (Syzygium aromaticum) leaf. This extract was considered to be effective material on Durian (Durio zibethinus) wood preservative against Subterranean termite (Coptotermes sp). The aims of this study were compare the retention and the affectiveness of preservative materials which  extracted from Glove leaf by using different method of extraction. This studi was done at Agro-technology Laboratory of Agricultural Faculty, Tadulako University, over the period of March and June 2014. Bioassay on Termite destruction was done at Maku Village, Dolo of Sigi Regency. The experiment was arranged based on Completely Randomized Design (CRD) in two different factorial patterns. The first factor was different method on leaf extraction (A) i.e. by using ethanol (A1), and by using distillated water (A2). While the second factor (B) was different time on soaking material, i.e. 1 day soaking time (B1), and 3 days were soaking time (B2). All units was performed as negative control. One percent of preservative extract was applied on each experimental unit. The outcome of this study showed that water content of axtract was 14,726% and the density was 0,463 g/cm3. The highest retention value 0,1244 g/cm3 was recorded on the treatment of 3 days ethanol extraction (A1B2), while the lowest value 0,0868 g/cm3 was detected on the treatment of 1 day water extraction. The highest value on effectiveness (or lowest rate on loss weight) 2,4075% was detected after the treatment by using 3 days ethanol extraction substance, while the lowest value 4,6818% was  measured on control unit. Key words: Syzygium aromaticum, Durio zibethinus, Retention, Effectiveness.  
RETENSI BAHAN PENGAWET EKSTRAK DAUN TEMBELEKAN (Lantana camara L) PADA BEBERAPA JENIS KAYU DAN EFEKTIFITASNYA TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Riska, Riska; Erniwati, Erniwati; Hapid, Abdul
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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High-grade durable wood could not be longer to meet the various needs, this caused by limited and the more expensive price, so it must use low grade durable wood. The use of low grade durable wood should be followed by the wood preservation process. This study aims to determine the preservative retention of leaves tembelekan (Lantana camara L) on bayur (Pterospermum sp), benuang (Octomeles sumatrana Miq) and durian (Durio zibethinzs) and its effectiveness against subterranean termites (Coptotermes sp), attack. It was conducted at the Laboratory of Agrotechnology, Faculty of Agriculture, University Tadulako in March to june 2014. Testing Subterranean termites (Coptotermes sp) test was carried out at the Maku Village, District of Dolo, Sigi Regency, Central Sulawesi, using a completely randomized design (CRD), with treatment of different wood species and 3 days soaking duration at a concentration of 1% preservative with 6 replications. The results show the moisture content of bayur, benuang and durian woods are 13,10%, 10,81% and 11,35% respectively. The wood densiy of bayur 0,480g/cm3, benuang 0,277 g/cm3 and durian 0,402g/cm3 and the highest retention values is found at wood of durian 59,09 g/cm3 and the highest retention values is at bayur 41,67 g/cm3. In addition, the highest weeight loss (leas effectiveness) of 15,02% on the wood of bayur (control) and the lowest (highest Effectiveness) on wood of benuang 0,72%. Key words: Leaf extract of tembelekan, Lantana camara L, Octomeles sumatrana Miq, Pterospermum sp, durio sibethinzs
EFEKTIVITAS BAHAN PENGAWET ALAMI DARI TANAMAN TEMBELEKAN (Lantana camara L) PADA BEBERAPA JENIS KAYU TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Safitri, Risky; Erniwati, Erniwati; Hapid, Abdul
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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Many favorable properties of wood are available in almost all parts of the world, easily obtained in different shapes and sizes, relatively easy to process, as well as very decorative appearance. However, wood also has a weakness that could be damaged by a variety of factors either biological, physical, mechanical or chemical. In reality, the main factors causing damage to the wood are fungi, bacteria, insects and marine animals (marine borer). The organisms might damage the wood because they make as a shelter or as feed. Therefore, there should be conducted wood preservation to overcome the unfavorable properties of the woods. Wood preservation aims to extend the use of low-class durability of timber species such as Bayur (Pterospermum sp), Durian (Durio zibethinus) and Benuang (Octomeles sumatrana Miq). This study aimed at determining the effectiveness of a natural preservative tembelekan (Lantana camara L). The research was conducted at the Forestry Sciences Laboratory, Department of Forestry, Forestry Faculty, Tadulako University and Talise Mantikulore Sub-district, started from May to July 2013. The study was designed with the method of completely randomized design (CRD) with three wood species treatment, namely bayur, durian and benuang. Each was preserved with a natural preservatives of tembelekan extract with a concentraation of 13,04%. There were 10 samples of each type of wood, consisting of 5 test samples preserved and 5 controls (without preserrvatives). There were 30 test samples. The parameters observed were preservative effectiveness of the sample weight after feeding on soil termites. The study shows that highest natural preservative effectiveness on benuang wood was preserved with the sample weight loss of 2,25% and the lowest on bayur wood was preserved with the sample weight loss of 3,47% when they were compared with the control sample (without preservative). Using tembelekan extract might increase wood resistance to soil termite attacks. Keywords: Captotermes sp, Durio zibethinus, Lantana camara L, Octomeles sumatrana Miq, tembelekan.
PENGARUH BERBAGAI KOMBINASI CAMPURAN SERBUK KAYU GERGAJIAN TERHADAP PERTUMBUHAN JAMUR TIRAM PUTIH (Pleurotus ostreatus) Marno, Marno; Yusran, Yusran; Erniwati, Erniwati
Warta Rimba Vol 3, No 1 (2015)
Publisher : Warta Rimba

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The objectives of this study were to investigate the effects of some sawdust combinationsas growth medium on the growth and the yield of white oyster mushroom (Pleurotus ostreatus). The research was conducted at Boyaoge village, Palu, Central Sulawesi from February to April 2013. This study used experimental method by Completely Randomized Design (CRD) with sixsawdust combination treatments, i.e; sawdust of Palapi (Heritiera sp.) and Cempaka (Elmerrilia sp.) (M1), Palapi (Heritiera sp.) and Gmelina (Gmelina arborea) (M2), Palapi (Heritiera sp.) and Durian (Durio sp.) (M3), Cempaka (Elmerrilia sp.) and Durian (Durio sp.) (M4), Cempaka (Elmerrilia sp.) and Gmelina (Gmelina arborea) (M5) and Durian (Durio sp.) and Gmelina (Gmelina arborea) (M6).The results showed that all combinations of sawdust significantly affected all growth variables assessed. Combination of Cempaka and Gmelina sawdust (M5) gave the higher of the number of fruiting bodies (5,8) and cap length (5,376 cm). Combination of Cempaka and Palapi sawdust (M1) gave the higher of cap diameter (10,028 cm). Hence, combination of Palapi and Gmelina sawdust (M2) gave the higher of fresh weight of fruiting bodies (98,6 g), while combination of Durian and Gmelina sawdust (M6) gave the higher of dry weight of fruiting bodies (5,8 g). Keywords: Growth Medium, Combination, Sawdust, Oyster Mushroom (Pleurotus ostreatus).
Pola Aktivitas dan Keanekaragaman Belalang (Insecta: Orthoptera) di Taman Naasional Gunung Ciremai, Kuningan, Jawa Barat Erniwati, Erniwati
JURNAL BIOLOGI INDONESIA Vol 5, No 3 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

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ABSTRACTPattern Activities and Diversity of Grasshopper (Insecta: Orthoptera) in Ciremai MountainNational Park, Kuningan, West Java. The grasshoppers of the Gunung Ciremai National Park,based on collections in 2008 are reported. The grasshoppers were collected by transect methodin three locations: Seda (508 m asl), Palutungan (1076 m dpl) and Cilengkrang (1143 m asl). Atotal, thirty three species of grasshoppers were recognized. The numbers of species/diversityindex Shanon are: 25/2.99, Palutungan 18/2.60, and Cilengkrang 13 species/2.46. The highestactivity of Ciremai grasshoppers was between 11.00-12.00 pm. The Erianthus sp was newrecord from Java, whereas Oxya spp.and Catantops (Acridiidae) spp were only found onSeda. Bibracte sp.(Acridiidae) and Paratrigonidium faseocinctum (Gryllidae) were only foundon Cilengkrang, whereas Oxyrrhepes obtusa (Acridiidae) was only found on Palutungan.Species similarity on location, observation time, activity, and habitat of each grasshopper arediscussed.Kata kunci : Activities, diversity, grasshopper, orthoptera, insecta, Ciremai
UPAYA MENINGKATKAN HASIL BELAJAR BAHASA INDONESIA MELALUI METODE PEMBELAJARAN TANYA JAWAB PADA PESERTA DIDIK KELAS IV SDN 35 SUNGAI LIMAU erniwati, erniwati
JURNAL MANAJEMEN PENDIDIKAN Vol 2, No 3 (2017): Jurnal Manajemen Pendidikan
Publisher : STKIP Pesisir Selatan

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Abstract The success of the learning objectives is determined by many factors including the teacher factor in implementing the teaching and learning process, because teachers can directly influence, foster and improve the intelligence and skills of learners. To overcome the above problems and to achieve the goal of education maximally, the role of teachers is very important and it is expected that teachers have a good method of teaching and able to choose the right method of learning and One of the appropriate learning model on learning Indonesian is the method of pembelajaran tanya jawab.Permasalahan which wanted to be studied in this research is: Whether through the use of question and answer learning method can improve learning outcomes Indonesian learner Class IV SDN 35 Sungai Limau The purpose of this action research is to improve the learning outcomes of Indonesia through the use of question and answer learning methods in participants educated SDN 35 Sungai Limau. This study used a classroom action research of two rounds. Each round consists of four stages: planning, execution, observation, reflection. The target of this research is students of Class IV SDN 35 Sungai Limau. The data obtained are quantitative and qualitative data. From the analysis of question and answer learning method has positive impact in improving learners learning result which is marked by the improvement of students learning mastery in every cycle, that is Pre cycle (58.14%), cycle I (72.09% ), cycle II (97.67%). The conclusion of this research is the method of question and answer learning has a positive influence, that is can improve learners learning outcomes that are indicated by the average answers of learners that states that learners are interested and interested in the method of question and answer learning so that they become motivated to learn. Keywords: Indonesian Language, Learning Methods Q & A
Potensi dan Pemanfaatan Serangga Penyerbuk untuk Meningkatkan Produksi Kelapa Sawit di Perkebunan Kelapa Sawit Desa Api-Api, Kecamatan Waru, Kabupaten Penajam Paser Utara, Kalimantan Timu Kahono, Sih; Lupiyanindyah, Pungki; Erniwati, Erniwati; Nugroho, Hari
ZOO INDONESIA Vol 21, No 2 (2012): Desember 2012
Publisher : Masyarakat Zoologi Indonesia

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Bunga kelapa sawit bersifat monoceus. Penyerbukannya dapat terjadi oleh bantuan serangga penyerbuk. Kumbang Elaeidobius kamerunicus adalah penyerbuk spesialis, yang bersama dengan jenis-jenis serangga lain melakukan penyerbukan kelapa sawit. Pengelolaan penyerbukan kelapa sawit di setiap perkebunan berbeda karena serangga penyerbuknya pun berbeda sehingga perlu disesuaikan dengan kondisi lingkungan masing-masing. Tidak ada publikasi tentang serangga penyerbuk lokal pada kelapa sawit di Indonesia selain oleh kumbang E. kamerunicus. Pada penelitian ini ditemukan serangga penyerbuk kelapa sawit lainnya, disamping E. kamerunicus, yaitu enam jenis lebah yang terdiri dari Apis florea, A. cerana, A. koschevnicovi, Trigona laeviceps, T. melina, dan T. itama yang mengunjungi bunga jantan anthesis dan betina receptive. Berdasarkan analisa ukuran dan perilaku kunjungan pada bunga betina disimpulkan bahwa hanya tiga jenis A. florea, Trigona laeviceps, dan T. melina yang mempunyai potensi tinggi sebagai penyerbuk bunga kelapa sawit pada bagian permukaan bunga. Sedangkan kumbang E. kamerunicus lebih berperan sebagai penyerbuk bagian dalam dari perbungaan. Populasi kumbang E. kamerunicus per hektar relatif rendah yang menyebabkan sebanyak 35,1% buah kelapa sawit yang tidak berkembang. Pemanfaatan kumbang E. kamerunicus untuk penyerbukan buatan telah dilakukan oleh petani kelapa sawit, namun dilakukan dengan cara yang menimbulkan banyak kematian pada kumbang muda.
KERAGAMAN SERANGGA PENGUNJUNG BUNGA PADA LIMA JENIS TANAMAN BUAH DI JAWA TIMUR Erniwati, Erniwati; Kahono, Sih
ZOO INDONESIA Vol 20, No 1 (2011): Juli 2011
Publisher : Masyarakat Zoologi Indonesia

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