Biospecies
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Local People And Primates In The Way Kambas National Park : Going Towards Co-Existence Or Conflict?
Get PDFKajian bekerja sama dengan Taman Nasional Way Kambas dilakukan untuk mengamatiperjumpaan dan gangguan primata di desa yang berdekatan dengan perbatasan taman nasional,Labuhan Ratu VI dan Labuhan Ratu VII. Survei lapangan dan penyebaran angket digunakan dalampengumpulan data. Perjumpaan dengan primata cukup tinggi. Di antara keberadaan empat primate,monyet ekor panjang dan beruk paling sering dijumpai secara langsung. Dua titik perjumpaanberdekatan dengan perkebunan singkong. Primata belum dianggap sebagai hama pengganggukarena adanya ancaman yang lebih besar dari gajah Sumatera dan babi hutan. Namun demikianpenemuan ini harus dijadikan pertimbangan untuk upaya konservasi yang berkaitan denganmasyarakat setempat dan primata di Taman Nasional Way Kambas
Biofungisida Berbahan Aktif Eusiderin I Untuk Pengendalian Layu Fusarium Pada Tomat
Get PDFThis reserach aims to develop a new fungicide formula with active agent Eusiderin I toinhibit Fusarium oxysporum f.sp. lycopersici that causing fusarium wilt on tomato. This researchincludes isolation Eusiderin I from bulian wood, growing potato in green house, reproduction ofFusarium oxysporum f.sp. lycopersici, eusiderin I stability test, bioacitivity test of the Fusarium in agreen house. This research succesfuly formulates an emulsifiable concentrate fungicide with activematerial Eusiderin I. The fungicide formula is composed of active material, solvent, and emulsifier.Eusiderin I 3 ppm proves the highest efication, indicated by only a tomato plant dead in eachtreatment (p<0.05). It was concluded that . fungicide with active content Eusiderin I on 3, 4, and 10ppm affect on the number of survived tomato plants. The efication degree of this fungicide on 3, 4,5, and 10 ppm is not significantly different
Pengamatan Kromosom Ikan Bilih(Mystacoleucus padangensis BLKR., Cyprinidae) dari Danau Singkarak Sumatera Barat Chromosomes Investigation of Bilih Fish(Mystacoleucus padangensis BLKR., Cyprinidae) from Singkarak Lake West Sumatera
Get PDFABSTRACT. The research onchromosomes of Bilih Fish (Mystacoleucus padangensis Blkr., Cyprinidae) from Singkarak Lake in West Sumatera amisto investigate the number of the fish’s chromosomes. The research was done by using descriptive method through making preparation of chromosomes with squashing method. The result shows that the number of chromosomes of M. padangensis is 2n = 50. Keywords: chromosome, bilih fish,Mystacoleucus padangensis Blkr. ABSTRAK. Penelitian ini bertujuan untuk mengetahui jumlah kromosom Ikan Bilih (Mystacoleucus padangensis Blkr., Cyprinidae) yang hidup di Danau Singkarak Sumatera Barat.   Penelitian dilakukaN dengan metoda deskriptif melalui pembuatan preparat kromosom menggunakan metodasquash. Hasil penelitian menunjukkan bahwa jumlah kromosomM. padangensis adalah 2n = 50. Kata kunci : kromosom, ikanbilih, Mystacoleucus padangensis Blk
Embriogenesis somatik pada kultur in vitro daun kopi robusta (coffea canephora var. Robusta chev.)
Get PDFThis research aims to induce tissue cells of robusta coffee leaves (Coffea canephoravar. Robusta Chev.) for embryogenesis through the addition of growth regulators kinetin and 2,4-D.The growth medium used is a solid Murashige-Skoog medium (MS). The added growth regulators areA = 10-7 Kinetin without 2,4-D, E = 5 x 10-6 M Kinetin and 2.5 x 10-5M 2,4-D; H = 5x10-6M Kinetin and5x10-5 M 2,4-D, I = 7.5 x 10-6M Kinetin and 5x10-5 2,4-D. Explants used were the second leaf from topbranch ortotroph of coffee plants with a size of about 0.5 x 1.0 cm. Observations were made on thepercentage of live explants, explant growth response including the formation of callus, organogenesis,and embryogenesis. The results showed that the planted explants are 100% alive, the growthresponse in the form of direct somatic embryogenesis occurred on the addition of Kinetin 10-7 without2,4-D. Other Treatment, E produced a response in the form of greenish compact callus, while twoother treatments, H and I, form whitish crumb/fragile structured callus. Thus, it was concluded that invitro culture of leaf tissue of Robusta coffee (Coffea canephora var. Robusta Chev.) on Murashige-Skoog (MS) medium with the addition of kinetin growth regulators and 2,4-D at different concentrationsproduce higher different growth rate. Response of growth that occurs is in the form of direct somaticembryogenesis, compact and crumb/fragile structured callus
Traffics and wildlife: A preliminary study on road-kill
Get PDFThis paper presents the preliminary finding on road kill survey by direct observations onthe high ways. The road-kills recorded of small wildlife, including medium size-mammal (2.50%, n =1), birds (5.00%, n = 2) and small mammals (92.50%, n = 37). The small mammals include the mostcommon mammals in the areas, squirrels, raccoons, skunks and woodchuck. Of mammals, squirrels(35.00%) were the highest recorded, followed by woodchucks (25.00%), mice/shrew (17.50%),raccoons (10.00%), skunk (5.00%) and domestic cat (2.50%) respectively. It seems road-kill wascaused by conflict between the wildlife natural habitat as well as its ecological behavior and roaddevelopment
Komposisi, Keanekaragaman Dan Rasio Kelamin Ikan Elasmobranchii Asal Sungai Kakap Kalimantan Barat
Get PDFSifat biologi elasmobranchii seperti fekunditas rendah, pertumbuhan lambat, umur relatif panjang danresiko kematian tinggi pada semua tingkat umur menjadikannya kelompok ikan yang memiliki resiko kepunahan palingcepat dibandingkan kelompok lain. Tujuan penelitian ini untuk mengetahui komposisi, keanekaragaman dan rasiokelamin ikan elasmobranchii. Hasil penelitian dikoleksi sebanyak 31 spesies yang termasuk dalam 7 famili dan 238individu. Ikan pari ditemukan sebanyak 24 spesies dan 169 individu, sedangkan hiu tujuh spesies dan 69 individu.Indeks keanekaragaman ikan elasmobranchii antara 1,77-3,75
Analisis Ambang Batas Escherichia coli Sebagai Indikator Pencemaran Pada Daging Sapi di Rumah Pemotongan Hewan Kota Jambi
No full textBeef is one of the Indonesian favorite foods and provides protein needed for human body’s health and growth. Rumah Pemotongan Hewan (RPH) Jambi is a slaughtering house that provides and distributes beef to traditional markets throughout Jambi City. Therefore, it is very essential to assure safetyof every piece of beef produced by the RPH. This research was undertaken in Biology UP-MIPA Laboratory, University of Jambi, from December 2009 to January 2010. The beef samples were collected from the Jambi RPH. This research employs the Most Probable Number (MPN) method, by observing the growth of Escherichia coli on Endo Agar media, starting from presumptive test until confirmative test. The experiment used 5-5-5 series reaction tubes, including the Durham fermentation tube. The results show that beef produced by the JAMBI RPH is 100% safe to be consumed. The number of Escherichia coli in the fresh beef is still below the maximum threshold level, which is 5 X 101MPN/100 m
Pemanfaatan serbuk kayu bulian (eusideroxylon zwagery t et b) sebagai antimakan terhadap ulat jengkal, chrysodeixis chalcites
Get PDFThere is a growing concern to use environmentally friendly pesticides including the use of plant-based pesticides. Given that bio pesticides are degraded easily, exploration and scanning to obtain new bio insecticides are continued to be practiced. One of the potential bio insecticides is bulian (Euderoxylon zwagerii). The bulian is a species of hardwood commonly used as construction material by the people of Jambi due to its resistance to termite and mold. The earlier research indicated that the sawdust of bulian is potential to treat Spodoptera litura F., an important crop pest. The purpose of this research is to develop active agents extracted from bulian sawdust to control pest crop especially C. Chalcites. The treatment include the application of bulian extract with concentration of 0,01%, 0,05%, 0,1%, 0,5%, and 1%. The smallest concentration of active extract with the strongest anti-feeding activity will be used as a reference for the following field studies of C. Chalcites. The results showed that, the higher the concentration of n-hexane extract is given, the higher the antifeedant activity of C. Chalcites. The smallest concentration that showed very strong anti-feeding of C. Chalcites is 0.5
Pengaruh Ekstrak Biji Pepaya (Carica papaya, L.) Pada Tahap Prakopulasi Terhadap Fungsi Reproduksi Mencit (Mus musculus, L.) Swiss Webster Betina
Get PDFThe aim of this experiment was to study the effect of Carica papaya Linn seeds extract on pracopulation onthe reproductive function of swiss Webster female mice (Mus musculus L.). Parametric are: body weight, thenumber implantation, number live fetuses, number death fetuses and embryionic fetuses, post-implantationdeath, live fetuses were examined, libido and ovarium weight. The experiment was designed using thecomplete randomized design. The results tested using the DNMRT method. Treatment are control withoutCarboksil Metil Celulose (CMC) 1% (K0), control with CMC 1% (KCMC), Carica papaya ekstrac dosage 50, 75and 100 mg/kgbb (E50, E75 and E100). The results experiment showed that Carica papaya L. ekstrac candestroyed could disturbed the reproduction function, i.e disturbed accreation body weight for gestation, bodyweight mice 18 th day of gestation, decrease the number live fetuses, increase number death fetuses andpost-implantation death, there number embryonic resorption and body weight live fetuses treatment morelower concentrated control. But, no influence significant for number implantation and ovarium weight
Pengaruh Alelopati Calopogonium mucunoidesDesv. Terhadap Perkecambahan dan Pertumbuhan Anakan GulmaAsystasia gangetica(L.) T. Anderson. Allelopathic Effect ofCalopogonium mucunoidesDesv. on Germination and Seedling Growth of Asystasia gangetica(L.) T.
Get PDFABSTRACT.The aim of this research was to evaluate allelopathic effect of dry leaves extract of Calopogonium mucunoides on seed germination and seedling growth of   weed, Asystasia gangetica, in field condition. The experiment was designed in Randomized Block Design, with different extract concentration (0, 2, 6, 18, and 54%). Thecollected data were analyzed withAnalysis of Variance (ANOVA) and the significant differences among the treatment means were determined using Duncan’s Multiple Range test. The experiment results showed that germination and growth of all weed were reduced by the extracts of Calopogonium mucunoides.The lowest germination and growth rate of Asystasia gangetica at concentration 2%of Calopogonium mucunoides extract and the highest germination and growth rate was recorded at concentration of 54%. Keywords: allelopathy, Calopogonium mucunoides, Asystasia gangetica, germination, growth. ABSTRAK. Tujuan penelitian ini adalah untuk mengetahui efek alelopati ekstrak daun kering Calopogonium mucunoides terhadap perkecambahan dan pertumbuhan 2 jenis gulma,Borreria alata dan Asystasia gangetica, pada kondisi lapangan. Percobaan dirancang menggunakan Rancangan Acak Kelompok dengan konsentrasi ekstrak berbeda (0, 2, 6, 18, and 54%). Data yang diamati, dianalisis menggunakan Analysis of Variance (ANOVA) dan jika berbeda nyata dilakukan uji lanjut menggunakan Duncan’s Multi Range Test (DMRT). Hasil percobaan menunjukkan bahwa perkecambahan dan pertumbuhan semua jenis gulma menurun dengan adanya perlakuan ekstrak Calopogonium mucunoides. Penurunan perkecambahan dan pertumbuhan Asystasia gangetica yang terendah adalah pada konsentrasi 2% ekstrak Calopogonium mucunoides dan penurunan tertinggi pada konsentrasi 54% ekstrakCalopogonium mucunoides. Kata kunci: alelopati, Calopogonium mucunoides, Asystasia gangetica, pekecambahan, pertumbuhan