Combo nursery technique is a technique where seedlings/cuttings of Shorea leprosula, Gliricidia sepium, and Brachiaria decumbens grass were planted in one polybag to support mining reclamation. To reduce competition effects among the three species, optimum media and size of polybag need to be investigated. The objective of this experiment is to analyse the effect of size of polybag and media composition on the growth of S. leprosula, G. sepium, and B. decumbens grass in the combo nursery technique. The experiment used Randomised Complete Design in Factorial with two factors, i.e. media compositions (soil : compost (2 : 1, v/v), (1 : 1, v/v), (1 : 2, v/v), and soil : compost : rice husk (7:3:1, v/v/v); and size of polybag (15 x 20 cm, 20 x 20 cm, dan 25 x 25 cm). Each treatment had four replications, and each replication consisted of four polybags. The results showed no significant interaction effects between the composition of media and the size of polybag; however, media compositions of soil: compost (1:1) and (1:2), and the sizes of polybag 20 x 20 cm and 25 x 25 cm significantly eliminated competition and significantly increased the growth of S. leprosula and the number of tiller of B. decumbens grass.
组合苗圃技术是一种在一个塑料袋中种植麻疯树、棕褐色Gliricidia sepium和外倾Brachiaria草的幼苗/插条以支持采矿复垦的技术。为了减少三个物种之间的竞争效应，需要研究聚乙烯袋的最佳培养基和尺寸。本试验的目的是分析在组合育苗技术中，聚乙烯袋的大小和培养基组成对麻风草、棕褐色草和伞形草生长的影响。实验采用因子分解中的随机完全设计，有两个因素，即培养基组成（土壤：堆肥（2:1，v/v）、（1:1，v/v；以及塑料袋的尺寸（15 x 20 cm、20 x 20 cm和25 x 25 cm）。每个处理有四个复制，每个复制由四个塑料袋组成。结果表明，介质的组成与塑料袋的尺寸之间没有显著的相互作用；土壤培养基组成：堆肥（1:1）和（1:2），20×20cm和25×25cm的胶袋大小显著消除了竞争，显著增加了麻疯草的生长和侧卧草的分蘖数。
{"title":"Growth of Shorea Leprosula Seedlings Prepared in Combo Nursery Technique to Support Mine Reclamation","authors":"F. Nugroho, I. Mansur, A. S. Wulandari","doi":"10.20886/jwas.v8i1.6498","DOIUrl":"https://doi.org/10.20886/jwas.v8i1.6498","url":null,"abstract":"Combo nursery technique is a technique where seedlings/cuttings of Shorea leprosula, Gliricidia sepium, and Brachiaria decumbens grass were planted in one polybag to support mining reclamation. To reduce competition effects among the three species, optimum media and size of polybag need to be investigated. The objective of this experiment is to analyse the effect of size of polybag and media composition on the growth of S. leprosula, G. sepium, and B. decumbens grass in the combo nursery technique. The experiment used Randomised Complete Design in Factorial with two factors, i.e. media compositions (soil : compost (2 : 1, v/v), (1 : 1, v/v), (1 : 2, v/v), and soil : compost : rice husk (7:3:1, v/v/v); and size of polybag (15 x 20 cm, 20 x 20 cm, dan 25 x 25 cm). Each treatment had four replications, and each replication consisted of four polybags. The results showed no significant interaction effects between the composition of media and the size of polybag; however, media compositions of soil: compost (1:1) and (1:2), and the sizes of polybag 20 x 20 cm and 25 x 25 cm significantly eliminated competition and significantly increased the growth of S. leprosula and the number of tiller of B. decumbens grass.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47185248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pendugaan biomassa hutan sekunder diperlukan untuk mendukung pengurangan emisi karbon dioksida melalui peningkatan cadangan karbon hutan. Umumnya, biomassa hutan diduga secara tidak langsung menggunakan model-model alometrik biomassa pohon yang disusun berdasarkan pengambilan sampel destruktif dari sejumlah pohon contoh. Ketersediaan model-model alometrik biomassa untuk hutan sekunder di Indonesia masih terbatas, khususnya untuk ekosistem hutan sekunder di bagian timur Indonesia. Penelitian ini bertujuan untuk menyusun model-model alometrik biomassa pohon jenis campuran di hutan sekunder Halmahera Timur, Maluku Utara, serta untuk membandingkan akurasi model-model alometrik lokal tersebut dengan model-model alometrik lain yang umum digunakan dalam pendugaan biomassa hutan sekunder. Pengukuran biomassa pohon dilakukan secara destruktif terhadap 18 pohon jenis campuran (dengan kisaran diameter 5,4 – 36,9 cm) di hutan sekunder. Sampel-sampel dari tiap bagian pohon (batang, cabang, ranting, dan daun) dianalisis di laboratorium untuk menentukan biomassa tiap pohon contoh. Model-model alometrik disusun menggunakan analisis regresi non-linier, yang kemudian dibandingkan dengan model-model alometrik lain. Penelitian ini menunjukkan bahwa biomassa pohon jenis campuran di lokasi penelitian dapat diduga secara akurat menggunakan model M7 yang menggunakan peubah diameter, tinggi dan kerapatan kayu. Model alometrik lokal tersebut lebih akurat dibandingkan dengan model-model alometrik lain yang umum digunakan untuk pendugaan biomassa hutan tropis. Alternatifnya, model M3 yang menggunakan peubah diameter dan tinggi juga dapat digunakan ketika data kerapatan kayu tidak tersedia. Model-model alometrik lokal dari penelitian ini dapat memperkaya ketersediaan model-model alometrik biomassa untuk ekosistem hutan sekunder di bagian timur Indonesia.
{"title":"ALLOMETRIC MODELS FOR ESTIMATING TREE BIOMASS OF DRYLAND SECONDARY FOREST IN EAST HALMAHERA","authors":"Mujahidah Sylviari Zaenal, T. Tiryana, M. Muhdin","doi":"10.20886/jwas.v7i2.5948","DOIUrl":"https://doi.org/10.20886/jwas.v7i2.5948","url":null,"abstract":"Pendugaan biomassa hutan sekunder diperlukan untuk mendukung pengurangan emisi karbon dioksida melalui peningkatan cadangan karbon hutan. Umumnya, biomassa hutan diduga secara tidak langsung menggunakan model-model alometrik biomassa pohon yang disusun berdasarkan pengambilan sampel destruktif dari sejumlah pohon contoh. Ketersediaan model-model alometrik biomassa untuk hutan sekunder di Indonesia masih terbatas, khususnya untuk ekosistem hutan sekunder di bagian timur Indonesia. Penelitian ini bertujuan untuk menyusun model-model alometrik biomassa pohon jenis campuran di hutan sekunder Halmahera Timur, Maluku Utara, serta untuk membandingkan akurasi model-model alometrik lokal tersebut dengan model-model alometrik lain yang umum digunakan dalam pendugaan biomassa hutan sekunder. Pengukuran biomassa pohon dilakukan secara destruktif terhadap 18 pohon jenis campuran (dengan kisaran diameter 5,4 – 36,9 cm) di hutan sekunder. Sampel-sampel dari tiap bagian pohon (batang, cabang, ranting, dan daun) dianalisis di laboratorium untuk menentukan biomassa tiap pohon contoh. Model-model alometrik disusun menggunakan analisis regresi non-linier, yang kemudian dibandingkan dengan model-model alometrik lain. Penelitian ini menunjukkan bahwa biomassa pohon jenis campuran di lokasi penelitian dapat diduga secara akurat menggunakan model M7 yang menggunakan peubah diameter, tinggi dan kerapatan kayu. Model alometrik lokal tersebut lebih akurat dibandingkan dengan model-model alometrik lain yang umum digunakan untuk pendugaan biomassa hutan tropis. Alternatifnya, model M3 yang menggunakan peubah diameter dan tinggi juga dapat digunakan ketika data kerapatan kayu tidak tersedia. Model-model alometrik lokal dari penelitian ini dapat memperkaya ketersediaan model-model alometrik biomassa untuk ekosistem hutan sekunder di bagian timur Indonesia.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47303188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study is to conflict mapping, explain conflict style of stakeholder and choices of conflict resolution. This study was conducted in February 2017 in Cisantana Village, Kuningan Regency. Data were collected through participatory rural appraisal; interviews, field observation, documentation and focus group discussions. The study method was used Rapid Land Tenure Assessment (RaTA) and Dispute Style Analysis (AGATA). The results showed that the dominant conflict in TNGC was the change of forest status which affected the economic activities of the community around TNGC, that involved eight dominant actor. In a conflict, the stakeholder has a different style of dispute. The stakeholders was facilitated and mediated to propose a permit to manage Patulungan (parking management), and a permit to manage Ipukan (tourism guide). In this case, the role of outsiders who do not have a conflict relationship is needed in order to realize conflict resolution.
{"title":"Conflict Mapping of Gunung Ciremai National Park in Cisantana Village, Cigugur, Kuningan, West Java","authors":"M. Palmolina, E. Fauziyah","doi":"10.20886/jwas.v7i2.5393","DOIUrl":"https://doi.org/10.20886/jwas.v7i2.5393","url":null,"abstract":"The purpose of this study is to conflict mapping, explain conflict style of stakeholder and choices of conflict resolution. This study was conducted in February 2017 in Cisantana Village, Kuningan Regency. Data were collected through participatory rural appraisal; interviews, field observation, documentation and focus group discussions. The study method was used Rapid Land Tenure Assessment (RaTA) and Dispute Style Analysis (AGATA). The results showed that the dominant conflict in TNGC was the change of forest status which affected the economic activities of the community around TNGC, that involved eight dominant actor. In a conflict, the stakeholder has a different style of dispute. The stakeholders was facilitated and mediated to propose a permit to manage Patulungan (parking management), and a permit to manage Ipukan (tourism guide). In this case, the role of outsiders who do not have a conflict relationship is needed in order to realize conflict resolution.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47918188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cajuput leaf harvesting is a technical forest activity of non-timber forest products. The productivity of cajuput leaf harvesting is strongly influenced by aspects of human resource capacity and biophysical aspects. This study aims to identify the socio-demographic conditions of forest workers in cajuput leaves harvesting and to analyze the standards performance of harvesting in FMU Yogyakarta. A survey of 100 samples of workers were used to determine socio-demographic characteristics, while in-depth observations were made on 3 workers with different characteristics to determine work performance. The socio-demographic conditions of workers in the cajuput leaf harvesting are seen from eight characteristics, namely age, gender, education, number of dependents, livelihoods, and land ownership. Workers have an average age of 58 years old and are male. The level of education possessed by workers is dominated by graduating from elementary school (SD) by 64 %. The average number of dependents per worker household is 4 people, with the main livelihood being farmers. The average land ownership of workers in cajuput leaf harvesting is 0.17 ha. The work performance of harvesting for normal people in the FMU Yogyakarta is 72.23 kg / hour.
{"title":"Socio Demographic Factors and Work Performance of Forest Workers in Cajuput Leaf Harvesting at RPH Nglipar, KPH Yogyakarta","authors":"R. M. Septiana, N. Supriyatno, S. Riyanto","doi":"10.20886/jwas.v7i2.5532","DOIUrl":"https://doi.org/10.20886/jwas.v7i2.5532","url":null,"abstract":"Cajuput leaf harvesting is a technical forest activity of non-timber forest products. The productivity of cajuput leaf harvesting is strongly influenced by aspects of human resource capacity and biophysical aspects. This study aims to identify the socio-demographic conditions of forest workers in cajuput leaves harvesting and to analyze the standards performance of harvesting in FMU Yogyakarta. A survey of 100 samples of workers were used to determine socio-demographic characteristics, while in-depth observations were made on 3 workers with different characteristics to determine work performance. The socio-demographic conditions of workers in the cajuput leaf harvesting are seen from eight characteristics, namely age, gender, education, number of dependents, livelihoods, and land ownership. Workers have an average age of 58 years old and are male. The level of education possessed by workers is dominated by graduating from elementary school (SD) by 64 %. The average number of dependents per worker household is 4 people, with the main livelihood being farmers. The average land ownership of workers in cajuput leaf harvesting is 0.17 ha. The work performance of harvesting for normal people in the FMU Yogyakarta is 72.23 kg / hour.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41741321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Screw tree (Helicteres isora Linn.) is a shrub species with 5 to 15 main stems where the natural distribution can be found in South Timor Tengah (TTS) regency of East Nusa Tenggara (NTT) province and it is potential as a medicinal plant. The fruits are the main material harnessed for traditional medicine or jamu. Recently, little is known on fruit productivity of screw tree under shaded and open area. At the field showed that there were differences on fruit and flower production under two shade condition and the main stems . The research aimed for gaining information on the effect of pruning on screw tree fruit productivity in the natural habitat under two shade conditions on fruit productivity. S plit plot design was employed with two factors which were two shade conditions (shaded under trees and open) as a main plot and the pruning techniques as a sub plot. Pruning techniques had affected significantly on the number of shoots and fruits, and there was an interaction between treatments to the number of fruits. Shade conditions had an important role on fruit production. Plants grew under open space had better fruit characteristics on fruit length (46,94 cm), fruit diameter (6,41 mm), post-harvest fruit weight (0,94 g), oven-dried fruit weight (0,89 g) and lower water content (5,57 %), compared to under shaded space 44,16 mm; 5,73 mm; 0,87 g; 0,81 g and 6,95 %, respectively for fruit length, fruit diameter, post-harvest fruit weight, oven-dried fruit weight and fruit water content . Keywords: k ayu ules, pruning technique, tree shade, fruit quality
{"title":"THE EFFECT OF TREE SHADE AND PRUNING TECHNIQUES ON SCREW TREE (Helicteres isora Linn.) FRUIT PRODUCTIVITY IN THE NATURAL HABITAT","authors":"D. Pamungkas, S. Siswadi","doi":"10.20886/jwas.v7i2.5617","DOIUrl":"https://doi.org/10.20886/jwas.v7i2.5617","url":null,"abstract":"Screw tree (Helicteres isora Linn.) is a shrub species with 5 to 15 main stems where the natural distribution can be found in South Timor Tengah (TTS) regency of East Nusa Tenggara (NTT) province and it is potential as a medicinal plant. The fruits are the main material harnessed for traditional medicine or jamu. Recently, little is known on fruit productivity of screw tree under shaded and open area. At the field showed that there were differences on fruit and flower production under two shade condition and the main stems . The research aimed for gaining information on the effect of pruning on screw tree fruit productivity in the natural habitat under two shade conditions on fruit productivity. S plit plot design was employed with two factors which were two shade conditions (shaded under trees and open) as a main plot and the pruning techniques as a sub plot. Pruning techniques had affected significantly on the number of shoots and fruits, and there was an interaction between treatments to the number of fruits. Shade conditions had an important role on fruit production. Plants grew under open space had better fruit characteristics on fruit length (46,94 cm), fruit diameter (6,41 mm), post-harvest fruit weight (0,94 g), oven-dried fruit weight (0,89 g) and lower water content (5,57 %), compared to under shaded space 44,16 mm; 5,73 mm; 0,87 g; 0,81 g and 6,95 %, respectively for fruit length, fruit diameter, post-harvest fruit weight, oven-dried fruit weight and fruit water content . Keywords: k ayu ules, pruning technique, tree shade, fruit quality","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"7 1","pages":"73-86"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49415762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Irawan, Iwanuddin Iwanuddin, J. Halawane, F. Muhammad
Langusei (Ficus minahassae (Teysm.et.Vr.) Miq) is one of the endemic flora of Sulawesi which existence is increasingly threatened. Attempts to maintain the existence of Ficus minahassae species by understanding the cultivation techniques of the Langusei species, especially regarding the appropriate germination techniques, need to be addressed. This study aims to determine the level of fruit maturity and the appropriate extraction treatment for the germination of Langusei seeds. The experimental design used in this study was a complete randomization design which is arranged in a factorial pattern. The first factor is the classification of the level of seed maturity based on fruit color categories: 1) Orange-brown fruit, 2) Orange-reddish fruit, 3) Red fruit, and 4) Red-black fruit, while the second factor is the fruit extraction treatment which consists of: 1) Extraction with dry wind treatment for 24 hours, 2) Extraction with drying treatment for 12 hours, and 3) Extraction with water treatment for 24 hours. The results showed that the fruit maturity level and the appropriate extraction treatment to produce optimal Langusei seed germination were in the (orange-brown and orange-reddish fruit) (mature fruits prior to ripening) which was soaked in water for 24 hours.
{"title":"Effect of Fruit Maturity and Extraction Treatment on Germination Percentage of Langusei (Ficus minahassae (Teysm.et.Vr.) Miq))","authors":"A. Irawan, Iwanuddin Iwanuddin, J. Halawane, F. Muhammad","doi":"10.20886/jwas.v7i2.5397","DOIUrl":"https://doi.org/10.20886/jwas.v7i2.5397","url":null,"abstract":"Langusei (Ficus minahassae (Teysm.et.Vr.) Miq) is one of the endemic flora of Sulawesi which existence is increasingly threatened. Attempts to maintain the existence of Ficus minahassae species by understanding the cultivation techniques of the Langusei species, especially regarding the appropriate germination techniques, need to be addressed. This study aims to determine the level of fruit maturity and the appropriate extraction treatment for the germination of Langusei seeds. The experimental design used in this study was a complete randomization design which is arranged in a factorial pattern. The first factor is the classification of the level of seed maturity based on fruit color categories: 1) Orange-brown fruit, 2) Orange-reddish fruit, 3) Red fruit, and 4) Red-black fruit, while the second factor is the fruit extraction treatment which consists of: 1) Extraction with dry wind treatment for 24 hours, 2) Extraction with drying treatment for 12 hours, and 3) Extraction with water treatment for 24 hours. The results showed that the fruit maturity level and the appropriate extraction treatment to produce optimal Langusei seed germination were in the (orange-brown and orange-reddish fruit) (mature fruits prior to ripening) which was soaked in water for 24 hours.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45494089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nyamplung (Calophyllum inophyllum L.) is one of forestry plant that has double benefits (economic and ecological). One of the problems faced in the development of nyamplung is its recalcitrant seed, which can not be stored for long periods. To increase the viability of nyamplung seed during storage, seed invigoration techniques are required. Invigoration is the treatment given to seeds before planting with the aim of improving germination and growth of sprouts. The purpose of this research is to know the proper invigoration technique on nyamplung seed during storage. The experimental design of the research was used Completely Randomized Design (CRDL) with factorial. There are 2 factors treatments: the first factor of: Invigoration treatment (control, osmoconditioning with soaking in aquades for 24 hours, osmoconditioning with immersion in PEG-6000 concentration 15 % for 24 hours, matriconditioning with moisture of newspaper (CD) for 2 hours, and matriconditioning with moisture ash scrub for 2 hours) and savings period factor the second factor of period of storage (0, 1, and 2 months). The research was conducted with replication is 4 times, @ each with 50 seeds of seed. The observation of germination is done after normal sprout growth, which it has of a pair of leaves. The parameters observed were germination and germination rate. The results showed that the proper invigoration technique on nyamplung seed during storage was the treatment of matriconditioning with moisture of newspaper (CD) for 2 hours. With this treatment it can increase the viability of seed nyamplung (germination) at 42 % and vigor seed (germination rate) at 0,56 % /etmal. results at the end of the abstract. The longer the storage period will cause the value of germination and the speed of germination to decrease. Keywords: seed, invigoration, nyamplung (Calophyllum inophyllum L.), recalcitrant, viabil
{"title":"The Invigoration Techniques of Nyamplung (Calophyllum inophyllum L.) Seeds During the Storage","authors":"N. Yuniarti","doi":"10.20886/jwas.v7i1.4734","DOIUrl":"https://doi.org/10.20886/jwas.v7i1.4734","url":null,"abstract":"Nyamplung (Calophyllum inophyllum L.) is one of forestry plant that has double benefits (economic and ecological). One of the problems faced in the development of nyamplung is its recalcitrant seed, which can not be stored for long periods. To increase the viability of nyamplung seed during storage, seed invigoration techniques are required. Invigoration is the treatment given to seeds before planting with the aim of improving germination and growth of sprouts. The purpose of this research is to know the proper invigoration technique on nyamplung seed during storage. The experimental design of the research was used Completely Randomized Design (CRDL) with factorial. There are 2 factors treatments: the first factor of: Invigoration treatment (control, osmoconditioning with soaking in aquades for 24 hours, osmoconditioning with immersion in PEG-6000 concentration 15 % for 24 hours, matriconditioning with moisture of newspaper (CD) for 2 hours, and matriconditioning with moisture ash scrub for 2 hours) and savings period factor the second factor of period of storage (0, 1, and 2 months). The research was conducted with replication is 4 times, @ each with 50 seeds of seed. The observation of germination is done after normal sprout growth, which it has of a pair of leaves. The parameters observed were germination and germination rate. The results showed that the proper invigoration technique on nyamplung seed during storage was the treatment of matriconditioning with moisture of newspaper (CD) for 2 hours. With this treatment it can increase the viability of seed nyamplung (germination) at 42 % and vigor seed (germination rate) at 0,56 % /etmal. results at the end of the abstract. The longer the storage period will cause the value of germination and the speed of germination to decrease. Keywords: seed, invigoration, nyamplung (Calophyllum inophyllum L.), recalcitrant, viabil","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"7 1","pages":"65-72"},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49034022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
One of the problems in developing Nyawai plants is the attack of snail pests Achatina fulica (Ferussac, 1821) at seedling level of the plants. Plant damage caused by these pests is quite large and causes seedling death. One of the control efforts that can be done is utilizing biomaterials which have molluscicidal properties (can kill mollusks). This study aimed to determine the toxicity of some extracts of biomaterial to control Achatina fulica (Ferussac, 1821) pests. The research was conducted on a laboratory scale. The study used a factorial random design with 3 replications. The treatment consisted of four biomaterials namely sembung (Blumea balsamifera), gadung (Discorea hispida), tuba (Derris eliptica and betel nut (Areca catechu) with each concentration of 10.25.50 g/l. Each concentration used 4 snails as a test sample. The parameters observed were snail mortality, and Lethal Concentration (LC50 and LC95). The results showed that the gadung tuber extract had the highest toxicity as indicated by mortality of 75 % and the lowest LC95 value of 80.63 g/l. While the lowest toxicity is betel nut with mortality of 49.75 % and the highest LC95 value is 567.75 g/l. The Toxicity of tuba, pinang, and sembung are highest on 50 g/l concentration, excepted the gadung extract. In gadung extract, the highest toxicity was obtained on 10 g/l concentration. However, the application was consideration to the attack intensity of Achatina fulica (Ferussac, 1821) because the toxicity effect of biomaterial pesticide was slower than chemical molluscicide. Keywords: Achatina fulica (Ferussac, 1821), biomaterial, concentration, toxicity
{"title":"The Plants Extract Toxicity Againts Achatina fulica (Ferussac, 1821) in Nyawai Ficus variegata (Blume)","authors":"F. Lestari, B. Rahmanto","doi":"10.20886/jwas.v7i1.5204","DOIUrl":"https://doi.org/10.20886/jwas.v7i1.5204","url":null,"abstract":"One of the problems in developing Nyawai plants is the attack of snail pests Achatina fulica (Ferussac, 1821) at seedling level of the plants. Plant damage caused by these pests is quite large and causes seedling death. One of the control efforts that can be done is utilizing biomaterials which have molluscicidal properties (can kill mollusks). This study aimed to determine the toxicity of some extracts of biomaterial to control Achatina fulica (Ferussac, 1821) pests. The research was conducted on a laboratory scale. The study used a factorial random design with 3 replications. The treatment consisted of four biomaterials namely sembung (Blumea balsamifera), gadung (Discorea hispida), tuba (Derris eliptica and betel nut (Areca catechu) with each concentration of 10.25.50 g/l. Each concentration used 4 snails as a test sample. The parameters observed were snail mortality, and Lethal Concentration (LC50 and LC95). The results showed that the gadung tuber extract had the highest toxicity as indicated by mortality of 75 % and the lowest LC95 value of 80.63 g/l. While the lowest toxicity is betel nut with mortality of 49.75 % and the highest LC95 value is 567.75 g/l. The Toxicity of tuba, pinang, and sembung are highest on 50 g/l concentration, excepted the gadung extract. In gadung extract, the highest toxicity was obtained on 10 g/l concentration. However, the application was consideration to the attack intensity of Achatina fulica (Ferussac, 1821) because the toxicity effect of biomaterial pesticide was slower than chemical molluscicide. Keywords: Achatina fulica (Ferussac, 1821), biomaterial, concentration, toxicity","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"7 1","pages":"39-50"},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47479468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bamboo is a multipurpose plant that has been used by the people for generation s. This study aimed to describe the processing of bamboo and analyze its added value in Tasikmalaya Regency, West Java. Data was collected in April -December 2016 through interviews using questionnaires and field observations of bamboo craftsmen, and then were processed and analyzed quantitatively and descriptively. The community processed bamboo into woven products such as ayakan , boboko, haseupan, hihid, picnic basket, nyiru, pipiti, and parcel, as well as non-woven products such as piggy banks, key chains, glasses, wall clocks, lampshades, invitation boxes, bowl, cup, frame, teapot, letter box , and tissue box . The average added value of woven products was IDR 131,197.21 or 9.11 % of the non-woven products , which was IDR 1,439,742.42. The average added value ratio of woven products is 0 , 83 and 0 , 90 for non - woven products. B amboo woven b usiness for household products is mostly done because the market has formed, stable, and has a wider scope even though it has lower added value. The market of non-woven products is smaller and spe c ific even though it has a higher added value. A bamboo stem is only valued IDR 10 , 000 – 50,000 , so it shou l d be sold in processed product s rather than the original form. Keywords: bamboo, processing, added value, woven, non - woven
{"title":"Processing and Added Value of Bamboo in Tasikmalaya, West Java","authors":"T. S. Widyaningsih, E. Fauziyah, D. P. Kuswantoro","doi":"10.20886/jwas.v7i1.5539","DOIUrl":"https://doi.org/10.20886/jwas.v7i1.5539","url":null,"abstract":"Bamboo is a multipurpose plant that has been used by the people for generation s. This study aimed to describe the processing of bamboo and analyze its added value in Tasikmalaya Regency, West Java. Data was collected in April -December 2016 through interviews using questionnaires and field observations of bamboo craftsmen, and then were processed and analyzed quantitatively and descriptively. The community processed bamboo into woven products such as ayakan , boboko, haseupan, hihid, picnic basket, nyiru, pipiti, and parcel, as well as non-woven products such as piggy banks, key chains, glasses, wall clocks, lampshades, invitation boxes, bowl, cup, frame, teapot, letter box , and tissue box . The average added value of woven products was IDR 131,197.21 or 9.11 % of the non-woven products , which was IDR 1,439,742.42. The average added value ratio of woven products is 0 , 83 and 0 , 90 for non - woven products. B amboo woven b usiness for household products is mostly done because the market has formed, stable, and has a wider scope even though it has lower added value. The market of non-woven products is smaller and spe c ific even though it has a higher added value. A bamboo stem is only valued IDR 10 , 000 – 50,000 , so it shou l d be sold in processed product s rather than the original form. Keywords: bamboo, processing, added value, woven, non - woven","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"7 1","pages":"51-63"},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44515713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tropical peat swamp forest (PSF) has a high species diversity and value including timber value. The valuation of timber is approached by calculating the stand volume. However, the volume model at PSF is not available for every species and species groups in specific site. This study aims to obtain a volume estimation model of species groups of tree species in peat swamp forest in Central Kalimantan. The model development and validation used 120 sample trees of the dipterocarpaceae and non-dipterocarpacae species. The distribution of sample trees is 70 % for the development model and 30 % for the validation stage. Modeling used linear and non-linear models). The selection of the best model used several criteria including: coefficient of determination, relative deviation (SR 95 %). The models compiled met the SA and SR criteria so that the models were very accurate in estimating tree volume at the tree level, as individuals and stands. The implication of this research was that the whole species model can be used to estimate the volume of trees in peat swamp forest. Keywords: accuracy, timber , non-linear, validation
{"title":"The Volume Model of Tree Species Group in Peat Swamp Forest at Logging Concession Area of Tingang Karya Mandiri, Central Kalimantan","authors":"M. Qirom, A. Akbar","doi":"10.20886/jwas.v7i1.5538","DOIUrl":"https://doi.org/10.20886/jwas.v7i1.5538","url":null,"abstract":"Tropical peat swamp forest (PSF) has a high species diversity and value including timber value. The valuation of timber is approached by calculating the stand volume. However, the volume model at PSF is not available for every species and species groups in specific site. This study aims to obtain a volume estimation model of species groups of tree species in peat swamp forest in Central Kalimantan. The model development and validation used 120 sample trees of the dipterocarpaceae and non-dipterocarpacae species. The distribution of sample trees is 70 % for the development model and 30 % for the validation stage. Modeling used linear and non-linear models). The selection of the best model used several criteria including: coefficient of determination, relative deviation (SR 95 %). The models compiled met the SA and SR criteria so that the models were very accurate in estimating tree volume at the tree level, as individuals and stands. The implication of this research was that the whole species model can be used to estimate the volume of trees in peat swamp forest. Keywords: accuracy, timber , non-linear, validation","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"7 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67604035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：