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Sainstek : Jurnal Sains dan Teknologi

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Published by Institut Agama Islam Negeri Batusangkar

ISSN : 20858019 EISSN : 2580278X DOI : http://dx.doi.org/10.31958/js

Core Subject : Science, Education,

Computer Science & IT Other

Arjuna Subject : Umum - Umum

Articles 12 Documents

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Search results for , issue "Vol 2, No 1 (2010)" : 12 Documents clear

ISOLASI DAN KARAKTERISASI Phytophthora palmivora PENYEBAB PENYAKIT BUSUK AKAR DAN BATANG PADA DURIAN Alberida, Heffi; Sunarwati, Diah; Yoza, Retra
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

Isolation and characterization of fungus that caused root and stem rotten in durian have been conducted. Isolation using baiting method with apple and than inoculated to PSM medium, while characterization using light microscope. Characterization result showed that P. palmivora isolated from infected durian have white, stratified and stellate colony, unsepta hyphae and form clamidospore, oospore, zoospore and sporangium.Key words: isolation, Phytophthora palmivora, spora

KULTUR POLIEMBRIONI BIJI DUKU (Lansium domesticum. CORR.) PADA MEDIA MS DAN WPM DENGAN PENAMBAHAN AIR KELAPA Prihatini, Retno; Yahya, Sudirman; Purwito, Agus
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

The study on growth respons of Lansium domesticum poliembryoni seed on MS and WPM media with added by coconut water had been carried out from Maret up to Mei 2006. This experiment had been done in Tissue Culture Laboratory, Agronomy-Holticulture Depatment, Agronomy Faculty, Institute Pertanian Bogor, using two factorial of Completely Randomized Design with nine treatments, and ten replications. The first factor treatment were MS, ½ MS and WPM media, and the 2nd factor were 0, 15 and 20% coconut water. The result showed that the emergence time of the first adventitious shoot were beginning on 26,5 days after planting, with one until four numerous of shoots, on MS, ½ MS, WPM media with added until 20% coconut water. There were only 50-70% shoot formed on 8 weeks after planting. With 20% coconut water suplemented on MS culture media showed that the height of shoots were significant than controle.Key words: Lansium domesticum, coconut water, polyembryonic seed, culture media.

PRODUKSI MASSAL AGENS HAYATI Pseudomonad fluoresen MENGGUNAKAN MEDIUM AIR KELAPA Advinda, Linda
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

This research had been done to know the mass production of Pf (Fluorescent Pseudomonads) in coconut liquid media. Randomized Complete Design (RCD) with 5 treatments and 3 replications was implemented in this research which consisted of 5 incubation periods: the 0, 2nd, 4th, 6th, and 8thweeks. The data gathered were analyzed by ANOVA and DNMRT (5% confidence level). As the result, the incubation period within 6 weeks in coconut liquid media gave good response to increase the mass production of Pf. On the other hand, the incubation period within 8 weeks gave bad response.Key words: Pseudomonad fluoresen, mass production, coconut liquid

UJI KETAHANAN TANAMAN CABAI KERITING (Capsicum annuum L.) HASIL INDUKSI MUTASI DENGAN ETHYL METHANE SULPHONATE (EMS) PADA GENERASI KEDUA TERHADAP PENYAKIT ANTRAKNOSA FITRI, DWI RINI KURNIA
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/js.v2i1.2

The research study about the screening of the resistance of red chilli (Capsicum annuum L.) resulted from mutation induced by Ethyl Methane Sulphonate (EMS) on the second generation (M2) to antrachnose diseases has been done by using descriptive method to intensity diseases of Colletotrichum capsici from mutant fruit of second generation. The result showed that the intensity of antrachnose on red chilli generation ranged from 23.69% to 54.82% with tolerance criteria susceptible and very susceptible.Key words: mutation induced, ethyl methane sulphonate, antraknosa red chille, antrachnose

AKTIVITAS AMILASE BAKTERI YANG DIISOLASI DARI SUMBER AIR PANAS CISEENG BOGOR Amri, Erismar; Widhyastuti, Nunuk; Artika, I Made
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

This research was aimed at studying the activities of amylase produced by isolate bacteria which were isolated from hot water resource, Ciseeng Bogor. Four among the nine isolate bacteria grown on NA media showed the activities of amylase. The character of Amylase was analyzed in 2 isolates, A1 and A3. Isolate A1 was optimally active at pH 3, 55 C, meanwhile isolate A3 was optimally active at pH 4, 50 C. The amylase resulted from either isolate A1 or isolate A3 was acid amylase. Both of the isolates were relatively stable at pH acid, whereas the amylase resulted from A3 was not stable on pemanasan in 30 minutes, and the amylase from A1 increased after being incubated at more than 60 C in 30 minutes. In conclusion, isolate A1 identified as Bacillus Coagulans indicated the optimal activities when it was grown at pH 6 and at the 14th hour of incubation.Key words: amylase, isolation, enzyme

KOMPOSISI ARTHROPODA PERMUKAAN TANAH DI KAWASAN PENAMBANGAN BATUBARA DI KECAMATAN TALAWI SAWAHLUNTO Nurhadi, Nurhadi; widiana, Rina
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

The research has been done to test the arthropod composition of surface soil at coal mining territory in Talawi district. The arthropod samples were taken by pitfall traps (totally 30 pitfall traps) in three different areas. At the first stage, the soil temperature was measured in the field. At the next stage, the soil chemists such as pH, humidity and soil organic, were analyzed in the laboratory. At the area I, the surface soil arthropods collected were from 9 ordo, 26 families, 31 species, and 3609 individuals. Meanwhile at the area II, the arthropods were 12 ordo, 26 families, 31 species, and 2502 individuals. At the last area, the arthropods collected were 12 ordo, 25 families, 28 species and 1272 individuals. Finally, it can be summarized that the arthropod composition on the three surface soils was similar with the similarity index 55.7%. It means the chemical and physical factors of the three areas still optimally supported the surface soil arthropods life cycle.Key words: surface soil, arthropods, composition, coal mining

TRANSPLANTASI OVARIUM DOMBA INTRAUTERIN PADA KELINCI LOKAL Sumarmin, Ramadhan
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

The research to describe the ewe ovarian status post transplanted intrauterine in local pseudo pregnant rabbit had been conducted by using a descriptive method in which the 4 pieces to 4 spaces of ewe ovarian were transplanted to each of the rabbit?s cornua uterine. The description of completed ovarian post the transplanted scored with 4 (90-100% completed), 3 (70-90% completed), 2 (50-70% completed) , and 1 (<50% completed). In the research, the COCs (Cumulus Oophorus Complexes) were collected by slicing method, and then the date of the CoCs was analyzed by ANOVA and DNMRT. The result showed that all ewe ovarian in local pseudo pregnant rabbits post-transplanted were still alive until the fifth or the seventh day of transplantation. Based on the observation and statistic test, in days 5 and 7, it was found a similar status (p<0.05) of post-transplanted ewe ovarian in local and control. The percentages of NZW5 (58.82) COCs decreased significantly (p<0.05) compared to the control (50.36), NZW7 (47.52), local5 (50.42) and local7 (44.78) respectively. It can be concluded that intrauterine transplantation of ewe ovarian to the local and NZW pseudo pregnant rabbits can preserve the ovaries.Key words: ovaries, transplantation, local rabbit, COCs

PENGEMBANGAN SISTEM EKSPERIMEN VISKOSITAS BERBASIS PERSONAL KOMPUTER DAN MIKROKONTROLER MCS-51 Yohandri, Yohandri
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

In this work, viscosity experiment system based on personal computer and microcontroller MCS-51 has been developed. The new model of viscosity experiment system is purposed to perfom the time and viscosity calculation automatically on the personal computer. The graph and statical analysis are used to determine characteristics of LDR sensor and experiment system such as sensitivity, accuracy, and precision. There were four main results of this research as follow : 1). LDR sensor resistance decreased with increasing light intensity and sensitivity of sensor was -11,55.(I)-1,56, 2). The comparator output voltage are two condition depend on light intensity, below 400 lux the output voltage is 4.54 Volt and for above is 0.59 Volt, 3). The accuracy and precision average of system timer was high, each of it was 99.9% and 0.97, 4). Ability of system to determine the value of the liquids viscosity has been tested and obtained three results for glycerin, SAE40 Oil, and cooking oil which the value of each sequence are 1121.99 mPas, 795.08 mPas and 79.78 mPas. Based on repeated measurement in viscosity, the precision of system have been obtained which average 0.994. Key words: viscosity, personal computer, microcontroller, sensitivity, accuracy, precesion

STUDI MOLEKUL m2N2 DENGAN GRUP SIMETRI D~h DAN D2h MENGGUNAKAN METODE AB INITIO Rahmi, Elvy
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

The study on molecule m2N2 (m=H, Li, Na, Be, Mg, B, Al, C, Si, N, P, O, S, F, Cl) with symmetrical groups D~h and D2h had been conducted by using Ab Initio method. As a part of HyperChem pro 6.0, this program was operated with Pentium 4. The research involved a number of linear cyclic molecules m-N-N-m as well as m-N-m-N. As the result of the computation process, it was found that generally the cyclic molecules m2N2 were more stable than those of the other linear molecules signed with the smaller total energy. It was also found that the most stable linear molecules were NºN resulted from the optimalization of Cl-N-N-Cl with the total molecule energy: -637778.1251 kcal/mol. Meanwhile, the most stable cyclic molecules were S-N-S-N with the total molecule energy: -560789.9726 kcal/mol. Key words: cyclic molecule, ab initio

KEKONVERGENAN BARISAN INFINITESIMAL Afriyani, Dona
Sainstek : Jurnal Sains dan Teknologi Vol 2, No 1 (2010)
Publisher : IAIN Batusangkar

This article was to find descript methode theory with number of Sequences. Base on theory has found the relationships it, are if has a free infestimal sequences line each other, then number of intestimal konvergencies with distribution of free variable in a function at conditions. Key words: infestimal sequences, convergen, characteristic of function

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Home Page

OAI Link

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Contact Name Marjoni Imamora

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Phone +6282169719397

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Editorial Address Fakultas Tarbiyah dan Ilmu Keguruan IAIN Batusangkar Jl. Sudirman No. 137 Kuburajo Lima Kaum Batusangkar, Sumatera Barat. 27213

Location Kab. tanah datar, Sumatera barat INDONESIA

Abstract

Abstract

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Abstract

Abstract

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Abstract

Abstract

Contact Name
Marjoni Imamora

Contact Email
-

Phone
+6282169719397

Journal Mail Official
sainstek@iainbatusangkar.ac.id

Editorial Address
Fakultas Tarbiyah dan Ilmu Keguruan IAIN Batusangkar Jl. Sudirman No. 137 Kuburajo Lima Kaum Batusangkar, Sumatera Barat. 27213

Location
Kab. tanah datar,

Sumatera barat

INDONESIA