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Keanekaragaman Makrozoobentos di Aliran Sungai Rombok Banangar Kabupaten Landak Kalimantan Barat
Get PDFBenthos are organisms that live on bottom of the water body, either in the form of animals and plants, living on the surface or in the bottom of the water. This research animed to find out the diversity of the species of macrozoobenthos in the Rombok Banangar River. The research began from November 2013 until January 2014. The samples of macrozoobenthos were collected using the Surber net and Ekman Grab based on the differences of the substrate on the riverbed. The macrozoobenthos found in the Rombok Banangar River were comprised of two Phyla i.e. Arthropods and Mollusks. The Phyla of Arthropods found were of the Insect class which falls into the genera Hydropsyche, Polycentropus, psephenus, Dryops, Anthopotamu, Acroneuria and Triops. Phyla of Mollusks found were of the Bilvavia class which falls into the Genus of Corbicula and of the Gastropod class of the Genera of Melanoides and Melanatria. The highest abudanceof the macrozoobenthos at each station was Polycentropus (66,67 ind/L) and Potadoma (266,67 ind/L). The highest abudance of the macrozoobenthos found was the Melanatria at 622,2 ind/L. Based on the values of Diversity index (H) (0,367 – 0,602) dominace index (C) (0,132 – 0,386) and evenness index (E) (0,367 – 0,602) the Rombok Banangar River falls into the category of good condition with a high species diversity. The physical and chemical factors of the water body are able to support the life of the macrozoobenthos
Analisis Vegetasi Hutan Mangrove Di Kawasan Muara Sungai Serukam Kabupaten Bengkayang
Get PDFThe mangrove forest is one of the natural resources of the coastal area that serves to control the increase of boundary between groundwater level and seawater level inland (intrusion), to be a buffer zone, and to protect the shoreline so as to avoid erosion or abrasion. The research aimed to find out the composition and types of mangrove forest vegetation in the area of Serukam River estuary, Bengkayang Regency This research was conducted from June to September 2015 . The location was determined using a purposive random samplingmethod. There were three sampling locations with three transects in the mangrove forest of Serukam River estuary. There were six mangrove species found in the research, i.e. Sonneratia alba, Avicennia marina, Rhizophora mucronata, Bruguiera parviflora, R. stylosa, B. cylindrica. The highest density of trees and saplings was R. mucronata with a density of 113.3 Ind/Ha and The highest density of saplings was 32.73ind/ha. The highest density of seedlings was Bruguiera cylindrical, i.e. 16.66 ind/ha
Pemanfaatan Tumbuhan Sebagai Bahan Kosmetik Oleh Suku Melayu Di Kecamatan Sungai Pinyuh Kabupaten Mempawah
Get PDFPlants as cosmetic ingredients have been used by ethnic Malay in Sungai Pinyuh Subdistrict, Mempawah Regency. This research aims to find out the types of plants, forms of use and processingof plants for cosmetics by ethnic Malays in Sungai Pinyuh Subdistrict, Mempawah Regency. This research was carried out for three months from August to October 2015 in the villages of Sungai Bakau Besar Laut and Sungai Bakau Besar Darat, Sungai Pinyuh Subdistrict, Mempawah Regency. The respondents were selected using a purposive sampling technique and semi-structured interviews. The quantitative analysis was conducted to calculate the citation frequency, informant agreement ratio, percentage of plant parts, and percentage of plant habitats. Research findings showed that there are 17species and 17 families used as cosmetic ingredients. There are 5 species used for the body care; 7 species for facials, 1 species for nail care; 4 species for dental and lip care; and 3 species for hair care. Parts of the plants widely used as ingredients in cosmetics are the leaves (57.93%). The highest citationfrequency in this research reaches 54.16% i.e. the henna plant (Lawsonia inermis L). The methods of processing the plants for cosmetics are by heating, kneading, crushing or mixing with other ingredients. The use as cosmetics for nail care receives the highest informant agreement ratio (IAR) i.e. 1, while the lowest informant agreement ratio is 0.857
Isolasi Jamur Dari Buah Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) Yang Terinfeksi Di Perkebunan Kelapa SawitKubu Raya
Get PDFThe difficulties in oil palm cultivation are mostly caused by several symptoms of disease, such as the fruit that is infected with fungi. Fungi generally infect the oil palm trees aged 3-9 years. This research aimed to isolate and identify the fungi from the infected fruit of oil palm at the oil palm plantation of PT. Agroasia Palmdale Kubu Raya. The research was carried out from March to June 2015 at the Laboratory of Microbiology, Faculty of Mathematics and Natural Sciences of Tanjungpura University Pontianak. This research used a direct planting method on the PDA and CYA media. The data obtained will be visually and descriptively displayed. The research findings indicated that there were 4 fungal isolates of the species members of Aspergillus sp.U1, Curvularia sp.U2, Penicillium sp.U3, dan Fusarium sp.U4 that infected the oil palm fruit under the environmental factors namely the temperature of 29-300C, humidity of 80- 85% and pH of 6.2 to 6.4
Uji Antagonis Trichoderma sp.T4 Terhadap Jamur yang Diisolasi dari Daun Bergejala Bercak Pada Bibit Kelapa Sawit (Elaeis Guineensis Jacq.)
Get PDFThe spot disease on leaves is a common disease that attacks the oil palm seedlings that is caused by several types of fungi. One of the alternatives to control this plant disease can be done with a biological control using biological agents such as the antagonistic fungus, i.e. Trichoderma sp. The research was conducted from January 2015 to April 2015 inLaboratory of Microbiology,Faculty of Mathematics and Natural Sciences, Tanjungpura University. The research aimed to find out the ability of Trichoderma sp. to control the fungi isolated from the leaves with spot disease symptoms on the oil palm seedlings. The isolation of the fungi of the leaves with spot disease symptoms was done through the direct isolation technique (direct planting) then the isolation of Trichoderma sp. T4 was conducted using the dilution method. The research obtained three types of fungi i.e.Curvularia sp. T1, Rhizoctonia sp. T2, and Fusarium sp. T3. The conclusion drawn from this research was that the Trichoderma sp. T4fungus was capable of slowing down the growth of the fungi isolated from the leaves with spot disease symptoms on the oil palm seedlings i.e.Curvularia sp. T1, Rhizoctonia sp. T2, and Fusarium sp. T3 by 34.01%, 30.42% and 41.69%, respectively
Struktur Anatomi Organ Vegetatif Kacang Panjang (Vigna sinensis (L.),var. BCA 02) pada Tingkat Salinitas yang Berbeda
Get PDFPlants require proper environtmental conditions for growth and development. One of the environmental conditions that put pressure on plants that may result in environmental stress is salinity. Plants will undergo morphological and anatomical changes to be able to adapt to saline environments. The long beans (Vigna sinensis (L.), var. BCA 02) which were used in this research are varieties that are sensitive to salinity and cultivated in the area of Rasau Jaya, West Kalimantan. This research aims to find out the anatomical structure of the vegetative organs of long beans (V. sinensis (L.), var. BCA 02) at the NaCl levels of 2,000ppm, 3,000 ppm and 5,000 ppm. The research was carried out from September to November 2015. The preparations of cross section of vegetative organs (roots, stems and leaves) were made using a paraffin method. Research findings showed that the addition of NaCl caused changes in morphological and anatomical structure of the vegetative organs of long beans which included epidermal thickness, cortex, mesophyll and vascular tissue
Pengaruh Logam Merkuri (Hg) Terhadap Pertumbuhan Seruni Rambat (Wedelia trilobata L. Hitchc)
Get PDFPhytoremediation is a remediation method by using plants with high tolerance to improve the quality of soil contamined with heavy metals. This research aimed to find out the effect of Hg metals on the growth of the wedelia (Wedelia trilobata L. Hitch) and to find out the ability of absorbing the mercury in the leaves and roots. The research used a completely randomized design (CRD) with 5 treatments and 3 replicated, i.e. 0 ppm HgCl2, 100 ppm HgCl2, 200 ppm HgCl2, 300 ppm HgCl2 and 400 ppm HgCl2. The research finding indicated that the mercury treatment had no significant effect on the parameters of plant height, number of leaves, fresh weight and dry weight. The mercury concentration absorbed by the roots ranged from 0.1128 to 0.2997 mg/g,and by the leaves ranged from0.0221 to 0.0287 mg/g. The wedelia was tolerance and still capable of adapting to mercury at a concentration of mercury at 400 ppm
Struktur Anatomi dan Jagung (Zea mays L.) yang Terserang Penyakit Bercak dan Karat
Get PDFSpot and rust disease is a disease that most often attacks the leaves of the maize plant (Zea mays L.) Both of these diseases are caused by a different type of fungus infection that causes different symptoms. Symptoms of the disease, indicated by morphological change of the anatomical structure. This research is aimed at determining the anatomical structure of leaves of maize (Zea mays L.) infected with the spot and rust disease. The research was carried out from April to September 2014. The paraffin method is used in making preparations of transverse incision of leaves (Zea mays L.) that were stricken with the spot and rust disease. The result of the study showed a thickening of the epidermis tissue, increase in mesophyll cells and decrease in xylem diameter of transverse incision on the leaves of maized infected with spot and rust disease. The rust disease caused most severe damage on the mesophyll and vessel tissue
Potensi Alelopati Ekstrak Serasah Daun Mangga (Mangifera indica (L.)) Terhadap Pertumbuhan Gulma Rumput Grinting (Cynodon dactylon (L.)) Press
Get PDFThe leaf litter of mango (Mangifera indica) conduced of phenol compound residues which can be used to inhibit the growth of other plants as a bioherbicide. This study aims to determine the concentration of leaf litter mango extract to inhibit the growth of grinting weeds (Cynodon dactylon). This study was conducted at the gauze house of Biology Departement and Chemistry Laboratory, Faculty of Mathematics and Natural Sciences, University of Tanjungpura Pontianak. The research began in April to August 2014, it used a complete randomized design with five repetitions. The treatments consisted of control, concentration of the extract as much as 25%, 35%, 45%, and 55%. The results of this research showed that the extract concentration of 35% is the lowest concentration that can inhibit seed germination and growth of the weed
Eksplorasi Bakteri Selulolitik pada Tingkat Kematangan Gambut yang Berbeda di Kawasan Hutan Lindung Gunung Ambawang Kabupaten Kubu Raya
Get PDFGenerally, peat soil has a low fertility rate. Based on the level of ripening, peat soil is composed of three categories, i.e. fibric, hemic and sapric. Biologically ripening peat soil is facilitated by cellulose degrading bacteria or cellulolytic bacteria. This research is aimed at determining the density and obtaining the cellulolytic bacteria genera on three levels of peat soil ripening. This research was carried out for three months, from April to June 2014. Soil samples were taken according to the level of ripening in the area of the Gunung Ambawang protected forest in the District of Kubu Raya. The isolation was carried out by using the Pour Plate method using the CMC (Carboxymethylcellulose) medium and bacteria density calculating using the TPC (Total Plate Count) method. Observation and characterization were made macroscopically, microscopically and through a series of biochemical tests. The result of research was obtained five bacteria genera, i.e. Neisseria, Actinobacillus,Acinetobacter,Staphylococcus and Micrococcus. Most cellulolytic bacteria genera were found in the hemic soil, whereas at least were on fibric soil. The highest rate of cellulolytic bacteria density in the research locations was found on the sapric soil, i.e. 1,845 x 106 CFU/g, and the lowest on fibric soil, i.e. 7,8 x 105 CFU/g and the density on hemic soil, i.e. 1,475 x 106 CFU/g