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Jurnal Sains Teknologi dan Lingkungan (JSTL)

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Published by Universitas Mataram

ISSN : 24770329 EISSN : 24770310 DOI : -

Core Subject : Health, Science, Agriculture,

Agriculture, Biological Sciences & Forestry Computer Science & IT Public Health

Jurnal Sains Teknologi dan Lingkungan (JSTL), merupakan media untuk publikasi tulisan asli yang berkaitan dengan sains teknologi dan lingkungan baik dalam Bahasa Indonesia maupun Bahasa Inggris. Jurnal Sains Teknologi dan Lingkungan (JSTL) merupakan jurnal ilmiah terbitan berkala dua kali setahun (Juni dan Desember).

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Articles 177 Documents

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Respon Seleksi Massa Secara Tidak Langsung Terhadap Daya Hasil Tanaman Jagung Selama Tujuh Siklus Di Lahan Kering I Wayan Sudika; I Gusti Made Arya Parwata; I Nyoman Soemeinaboedhy
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 4 No. 2 (2018): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

The objective of the research is to investigate the selection response indirectly on the corn yield in dry land, and the yield improvements of yield due to seven cycles. The selection method used were mass selection with and without pollination controll. The method used to minimize environmental effect during selection was subdivided block that (subselection block divided into small plots). In each plot, there was 40 plants, and the number plants selected were 5 %. Randomized Completely Block Design was used to study the selection result. The data collected were analyzed using Analysis of Variance, and the difference between populations were tested using Least Significant Difference in 5 % significant level. The average of selection response per cycle every technique used was gained from polynomial regression coefficient among the characters observed with selection cycle The percentage of the corn yield improvement was gained from the difference between the seventh cycle and the base population, and then, substracted by the base population. The result showed that the response indirectly of mass selection with and without pollination controll were significantly linear, and the values were 47.88 and 72.80 g per plot, respectively. The yield improvements were 43.46 % and 79.21 %, respectively

Biosorben Kulit Jengkol sebagai Penyerap Logam Pb pada Air Kolong Pasca Penambangan Timah Fajar Indah Puspita Sari; Ristika Oktavia Asriza
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 4 No. 2 (2018): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Post-tin mining has caused a major problem in the Province of Bangka Belitung Islands, which leaves declining water quality of dam-water. The aim of this study is to employing jengkol shells to adsorb Pb metal from post tin-mining water. Biosorbent preparation from jengkol (Pithecellobium jiringa) shells was done by HNO3 activation. Metal absorption by biosorbent was applied to post tin-mining water. The functional groups involved in the adsorption process are studied by FTIR characterization. The results showed a shift of wave numbers in hydroxyl, sulfonyl and phosphate groups proving that these three functional groups were involved in absorb of Pb metal on the surface of biosorbent

Kajian Perubahan Ragam Genetik Tanaman Jagung (Zea mays L.) akibat Seleksi I Wayan Sudika; I Wayan Sutresna; Dwi Ratna Anugrahwati
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

This study aimed to determine the change in total genetic diversity after eight cycles of mass selection using a technique of selection index for yield, fresh dry matter, and weight of dry harvested cob, and to find out the average of these three characters compared to the initial population. This experiment was carried out at Pringgabaya District, East Lombok Regency using Randomized Block Design (RBD) with 11 treatments, namely eight selected populations, initial populations and two hybrid varieties. Each treatment was replicated 3 times, resulted in 33 experimental units. Data obtained were analyzed using analysis of variance at 0.05 levels. Variance of phenotype is obtained from the variety of samples; while the environmental variance is defined as the average variance of the two hybrid phenotypes. Genetic diversity is obtained from the variety of phenotypes of each population minus the environmental diversity. F-test of 0.05 was performed to find out whether the genetic diversity of the eighth cycle population is the same or different to that of the genetic diversity of the initial population. The average between the initial population and the eighth cycle population was tested using the HSD-test at 0.05 levels. The results showed that the total genetic variation in the population from the eighth cycle selection for yield, harvested dry weight of cobs, and fresh dry matter of maize were smaller than the genetic diversity of the initial population. The average yield, harvested dry cob weight and fresh dry matter weight of population of the eighth cycle selection are higher than the initial population

Potensi Bibit Sotong untuk Pengembangan Keragaman Budidaya Nelayan Kecil sebagai Strategi Konsevasi Lamun di Perairan Pesisir Lombok Timur Abdul Syukur; Agil Al-Idrus; Lalu Muhammad Imam Husaini M. Nasir; Pahmi Pahmi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Diversification of marine culture has an effective value for the sustainability of the livelihoods of small fishermen. In addition it can play a role in preventing the threat of utilization that is not environmentally friendly. Cuttlefish is one of the types of marine biota commodity that has high economic value and has the potential to be developed as a fishery diversification community. The purpose of this study was to determine the indicators of the potential of cuttlefish cultivation as a diversification strategy for small fishermen's cultivation and seagrass conservation in the study location. The research method used is the method of direct observation and interviews. Data analysis uses descriptive statistical analysis. The results showed that the average cuttlefish seedlings were 1293.5 individuals / month and the average cuttlefish caught by fishermen landed at TPI Tanjung Luar was 1229 individuals / month consisting of three species namely Sepia latimanus, Sepia pharaonis and Sepioteuthis lessoniana. In addition, marine cultivation has developed into the choice of livelihood for small fishermen, although it is still complementary. Furthermore, the group of farmers plays an active role in preventing local threats from uses that are not environmentally friendly. The conclusion is the diversification of cultivation with cuttlefish community is of strategic value to overcome the problem of the sustainability of small fishing livelihoods and local scale seagrass conservation in the study location. Therefore, diversification of cuttlefish culture can be considered, especially at the scale of small fishermen as a policy of developing seafood products to achieve food security, both at local, regional and national scale.

Distribusi dan Pola Segregasi Karakter Kuantitatif F2 Persilangan Padi Situ Patenggang dengan IPB 3S A A K Sudharmawan; IGP Muliarta Aryana; Jusmiati Jusmiati
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

This study aims to determine the distribution and patterns of gene segregation that play a role in the inheritance of quantitative F2 traits resulting from the Situ Patenggang rice crossing with IPB 3S. The method used in this study is an experimental method carried out in July to December 2018 with a single plant cropping pattern. Data distribution was tested by Kolmogorov Smirnov test using SPSS 17.0 software and the suitability of segregation ratio using Chi-Square method with a real level of 5%. The results showed the nature of the number of productive puppies in normal distribution which means the character is controlled by many genes (polygenic). Plant height, number of empty grains and number of filled grains follow Mendel's segregation pattern with a ratio of 15: 1 (double dominant epistasis; controlled by two dominant genes that are both epistasis and regulate the same traits and can replace one another). the nature of the number of non-productive tillers, panicle length, and weight of 1000 grains does not follow the Mendel segregation ratio pattern or its modification for one trait and two traits is assumed because it is controlled by more than two genes (minor genes) so that their individual effects are difficult to distinguish.

Pengaruh Kosentrasi dan Frekuensi Pemberian Pupuk Hayati Bio-EXTRIM Terhadap Pertumbuhan dan Hasil Tanaman Wortel (Daucus carota L.) dalam Pot di Dataran Rendah Riana Amalia; Aluh Nikmatullah; Karwati Zawani
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

This study aimed to determine the effect of the concentration and frequency of Bio-EXTRIM biofertilizer applications and their interactions on the growth and yield of carrot (Daucus carota L.) plants cultivated using pots in the lowland. This research was conducted in the rice fields of Siren Hamlet, East Rumbuk Village, East Lombok sub-district, from March toJune 2019, and arranged according to the Randomized Block Design (RBD) factorial with two factors. The first factor was the concentration of Bio-EXTRIM and the second factor was the frequency of Bio-EXTRIM applications; each consisted of 3 levels and thus resulted in 9 interractio. The interraction were: concentration of 0.25% with 4 times application, concentration of 0.25% with 5 times application, concentration of 0.25% with 6 times application, concentration of 0.5% with 4 times application, concentration of 0.5% with 5 times application, concentration of 0.5% with 6 times application, concentration of 1% with 4 times application, concentration of 1% with 5 times application, and concentration of 1% with 6 times application. The results showes that the concentration of Bio-EXTRIM biofertilizer had significant effect on the rate of carrot leaf stalks growth, with concentration of 0.25% had the highest leaf stalk growth rate. The frequency of Bio-EXTRIM biofertilizer applications influenced the dry weight of leaf biomass, the middle diameter of the carrot root and the sugar content of the carrot root. The highest dry weight of leaf biomass and diameter of the tuber were obtained in carrot plants treated with Bio-EXTRIM biofertilizer for 4 times, while the sweetest tubers were obtained in carrot plants treated with Bio-EXTRIM biofertilizer for 6 times. However, there was no interaction between the concentration and frequency of Bio-EXTRIM biofertilizers in influencing the growth and yield of carrots grown in the pots in the lowlands

Pengendalian Longsor di Daerah Desa Sumberharjo, Kecamatan Prambanan, Kabupaten Sleman, Daerah Istimewa Yogyakarta Dian Hudawan Santoso; Eni Muryani; Adilla Zahra Permatasari
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

The landslide occurred in area of Sumberharjo Village, Prambanan Subdistrict, Regency of Sleman, Daerah Istimewa Yogyakarta Province on 28th November 2018.The landslide area have a steep slope and complex geological conditions like a cracks. The closest settlement is located 8m far from the landslide area. The purpose of the research is to determine the vulnerability of landslide zonation level based on control and trigger factor and to design technique of controlling landslide area.The methodology used in this research are survey method and field mapping. Mapping method based on the control factor which has parameter like slope, soil texture, soil thickness, weathering of rock, infiltration capacity and land use. The rainfall level parameter as a trigger factor are analyzed by secondary data. Vulnerability of landslide zonation level zoning is obtained by the scoring method based on these parameters. Determination of slope engineering by taking 3 samples of soil for laboratory analysis. The soil sampling technique is purposive sampling which is based on slope and soil texture in landslide area. The laboratory results are used to calculate slope stability using the Janbu Method. All data obtained are analyzed based on environmental conditions. The research area has 3 landslide vulnerability zones: low vulnerability level with 2756,18 m2 of area, moderate vulnerability level with 61556,92 m2 of area, and high vulnerability level with 6298,90 m2 of area. The value of safety factor on landslide area is 0.94 which is classified as unstable. Lanslide management applied in area which has high vulnerability level on landslide area by making a bench that combined with gravity wall, surface drainage, and vegetation planting such as Jati and vertiver grass. The control effort increases the value of the slope safety factor to 1.33

Model Runtut waktu untuk Peramalan Indeks Kekeringan Daerah Lombok Utara Humairo Saidah; I Wayan Yasa; Muh. Bagus Budianto; Syamsul Hidayat; I.D.G Jayanegara
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

PDSI is the drought index method which has good accuracy to be applied in Lombok Island. However, this method is only able to hindcast the drought without any procedure to predict the drought index in the future. So, this model aims to recognize the characteristics of drought in North Lombok for early mitigation and anticipating drought disasters purposes in this region. The results obtained from this study are that the drought pattern in North Lombok has the SARIMA model of (0,1,2) (0,1,1)12. The drought in North Lombok mainly occurs between May-October with an increasing of drought index tends for over last 20 years.

Distribusi Bakteri Penghasil Enzim Ekstraseluler Pada Saluran Pencernaan Lobster Mutiara (Panulirus ornatus) Fatur rahman; Ismiati Ismiati; Arbai Nurhasanah
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

The activity of the digestive function of animals is influenced by the secretion of extracellular enzymes from bacteria in the digestive tract. This study aims to evaluate the distribution of bacteria producing protease enzyme, amylase and lipase from the digestive tract of pearl lobster, Panulirus ornatus. Bacterial isolates that have extracellular enzyme activity are based on their ability to form clear zones in the test media. The results showed that of 51 bacterial isolates from the digestive tract of P. ornatus, proteolytic bacteria were 27.45%, amylolytic bacteria were 23.53% and lipolytic bacteria were 21.77%. Based on bacterial dominance in the gastrointestinal segment, namely the cardiac, piloric and intestinal sections, it was dominated by amylolytic bacteria at 33.33%, proteolytic at 37.50% and lipolytic at 29.41%. The activity of proteolytic, amylolytic and lipolytic bacteria based on the highest clear zone diameter was achieved respectively by SP5 isolates of 12 mm, SK10 isolates of 21 mm and SU15 isolates of 20 mm. The three bacterial isolates were potential as probiotic aquacultur candidates

Efektivitas Sediaan Salep Limbah Kulit Singkong Sebagai Penyembuh Luka Widia Nila Risnadewi; Nadya Arianita Turisia; Alsifah Nurhidayati; Candra Dwipayana Hamdin
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 5 No. 2 (2019): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

The skin is an important organ that functions to receive stimuli such as touch, pain and other influences from the outside. Some problems that occur on the skin can becaused because the skin is very vulnerable to trauma and injury. Wound is a condition of the breakdown of tissue integrity caused by violence both mechanical, physical and chemical in nature. In general, wound care in the community is done with a dressing accompanied by compresses betadine and normal saline because these materials are easily available. However, long-term use of the dressing can cause slow wound healing and various infections can appear. This causes people to look for other alternative treatments, one of them with herbal plants, namely cassava plants have the potential to be used as a wound healing and is able to inhibit bacteria because they are suspected to contain phenolic compounds. This study was a true experimental study, the group of test animals was divided into 6 groups, after that the making of wounds and smeared with bacteria were given ointments with 3 concentrations namely 5%, 10%, and 15%. Ointment extract of cassava skin waste gives effect to the wound healing process seen from the length of the wound. The ethanol extract ointment which has a good effect on wound healing is an ointment with a concentration of 10% and 15%.

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