Study on the Hibernation of Tilapia Fish (Oreochromis Niloticus)by Usingthe Extract of Ruku-rukuLeaves(Ocimum Sanctum L.)during Dry System Transportation

(Ocimum sanctum L)extract solution used for hibernating tilapia during drysystem transportation. The research was using an experimental method anddesignedrandomized complete design (RCD). The treatment was hibernating thefish by using four kinds and levelsof the concentrationruku-ruku leaves extract,namely: using cold temperatures 10oC (L0), the solution of ruku-ruku leavesextract at the concentration of 10% (L1), 15% (L2), 20% (L3). Parametersobservedwere the quality of the water used during hibernation (temperature, pH, turbidity,CO2 content), the activity of tilapia during hibernation, the changing conditionsoftilapia during transportation, the temperature fluctuations in the packaging box, aswell as the percentage of survival rate of tilapia after awakening. The resultsshowed that the best treatment was the using of ruku-ruku leaves extract at theconcentration of 20% to hibernate the tilapia fish in 15-20 minutes. The mortalityrate of life of tilapia was up to75% during 6 hours transportation

Efektifitas Pemberian Pupuk Hayati Mikoriza Terhadap Serapan P, Pertumbuhan Serta Produksi Jagung Manis (Zea Mays Saccharata Sturt) Di Lahan Gambut

The research aims to determine the mycorrhizal biological fertilizer dose that is effective in the absorption of P for growth and production of sweet corn on peatlands. Research has been conducted in Rimbo Panjang Village, Kampar District, Riau Province. The research lasted for four months starting in December 2015 to March 2016. The research was conducted experiments using a randomized block design (RBD) non factorial, which consists of 6 treatments and 4 replications. The observations were statistically analyzed using analysis of variance followed by Duncan's multiple range test at 5% level. Based on the survey results revealed that administration of a biological fertilizer mycorrhiza real impact on P uptake of plants, root volume, dry weight of plants, production per plot, cob diameter and number of lines of grains per ear, but the effect was not significant on plant height, ratio canopy roots, time appears male flowers, female flowers appear time, harvesting, heavy cob with husk, heavy cob without husk and cob length. Provision of biological fertilizer mycorrhizal 6 g/plant an effective dose to support the growth and the production of sweet corn on peatlands

Aplikasi Limbah Cair Pabrik Kelapa Sawit Dan Zeolit Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.)

Plant oil palm (Elaeis guineensis Jacq.) is one of commodity plantation in Riau as a source of vegetable oil. In order to increase the production of the necessary good breeding. Seedling growth is strongly influenced by the availability of nutrients, so it takes fertilization. Fertilizers used are Palm Oil Mill Effluent (LCPKS). LCPKS contains nutrients that can be absorbed by plants. LCPKS has the disadvantage that volatile, so it need a way to overcome that problem. One solution that is used is the granting of Zeolite. Zeolite is able to bind nutrients that are available in a long time for plants. This research aims to get the best treatment on the growth of oil palm seedlings. Research conducted at the experimental field of the Faculty of Agriculture, University of Riau. This research has been going on for three months starting from February to April 2015. The research was conducted using a completely randomized design (CRD) factorial. The first factor is the Palm Oil Mill Effluent with 3 levels consisting of 0 ml, 195 ml and 390 ml. The second factor is a Zeolite with 3 levels consisting of 0 g, 50 g and 100 g. The combination is repeated 4 times so that there are 36 units of trial and each experimental unit consisted of two plants, so the total is 72 plants. Parameters measured were seedling high accretion (cm), number of leaves (pieces), stem diameter (cm), root volume (ml), the ratio of crown roots, and seedling dry weight (g). Statistical analysis using ANOVA followed by Duncan's Multiple Range Test at 5%. The results showed that there was no interaction LCPKS and Zeolite on all parameters of observation. Combination of LCPKS 390 ml and 50 g zeolites tend to produce the best growth on the parameters in the number of leaves, stem diameter and root volume

Pengaruh Pemberian Kompos Isi Rumen Sapi Terhadap Pertumbuhan Bibit Kakao (Theobroma Cacao L.)

The purpose of this research was to know the effect of giving compost contains cow rumen and get a dose of composted cow rumen content on seedling growth of the cocoa plant(Theobroma cacao L.). This research had been conducted on the experimental field of the Faculty of Agriculture, University of Riau from April to August 2015. This research was conducted in the form of non-factorial experiment arranged in the form of completely randomized design (CRD), which consists of 5 treatment with each dose of composted cow rumen contents that (K0 ): without composted cow rumen contents, (K1): 25 g/plant (K2): 50 g/plant, (K3): 75 g/plant and (K4): 100 g/plant. Each unit treatment was repeated 4 times to obtain 20 units of the experiment and the experimental unit comprises three plants, two of which are used as plant samples. Parameters measured were seedling height, stem diameter, number of leaves, leaf area, root volume, the ratio of crown roots and dry weight. Results of the analysis will be followed by a test of Duncan New Multiple Range Test (DNMRT) at 5%. Giving Composting cow rumen content with a dose of 50 g/plant, 75 g/plant and 100 g/plant gave outgrowth good cocoa crop seeds in the parameter leaf area, root volume, the ratio of crown roots and dry weight of seedlings

Respon Pertumbuhan Dan Produksi Beberapa Varietas Padi Gogo (Oriza Sativa L.) Dengan Ketebalan Tanah Mineral Pada Lahan Gambut

A large area of feat soil as available across Aceh Singkil province of Aceh. The possibility of the area for upland rice farming is necessary tube evaluated. This study aim to evaluate the growth and yield of upland rice varieties on peat soil with different thickness of soil. The research used randomized block design with 2 (two) factors. The first factor was rice varieties (V) were consist of (1) Local variety (Siliam varieties), (2) Situ Bagendit varieties, (3) Situ Patenggang varieties and (4) Batutegi varieties. Where as the second factor thickness of mineral soil applied on peat wich consist of 5 cm, 10 cm, 15 cm, 20 cm and no mineral soil as a control. The results indicated that varieties of upland rice showed significant effect on the growth and production variable such as plant height 4, 6, 8 and 10 weeks after planting, where Situ Bagendit variety was the highest among the varieties. Similarly number of tillers 4, 6, 8 and 10 weeks after planting, the highest number of tillers was found on Situ Bagendit variety, while for highest number of grain per panicle was in Batutegi varieties. The thickness of mineral soil applicated on peat soil indicated significant effect on the growth and production variables such as plant height 4 weeks after planting. The highest yield of upland rice was fond on Situ Bagendit variety followed by Batutegi variety, Situ Patenggang variety and local variety (Siliam variety)

Gamma-rays from Galactic Black Hole Candidates with Stochastic Particle Acceleration

We consider stochastic particle acceleration in plasmas around stellar mass black holes to explain the emissions above 1 MeV from Galactic black hole candidates. We show that for certain parameter regimes, electrons can overcome Coulomb losses and be accelerated beyond the thermal distribution to form a new population, whose distribution is broad and usually not a power law; the peak energy of the distribution is determined by the balance between acceleration and cooling, with particles piling up around it. Radiation by inverse Compton scattering off the thermal (from background) and non-thermal (produced by acceleration) particles can in principle explain the hard X-ray to gamma-ray emissions from black hole candidates. We present model fits of Cyg X-1 and GRO J0422 in 50 keV -- 5 MeV region observed with OSSE and COMPTEL.Comment: 2 figures, to appear in March 20 of ApJ

The Effect of Giving Multiple Doses of Npk Fertilizer Tablet to Growth and Prodictin of Pineaplle (Ananas Comosus (L) Merr) in Peatland

This study aimed to determine the effect of NPK fertilizer tablets Sigi and get the best dosage of pineapple crop production. Research has been conducted in the community garden Desa kualu Nenas Kampar District Riau Province began in February 2014 to June 2014. The study was carried out experiments using arandomized block design (RBD) consists of 4 treatments and 6 replications, each experimental unit consisted of 6 plant. The treatment given is without fertilizer NPK (P0), NPK fertilizer Sigi 1 tablet ( 11.869 g)(P1), NPK fertilizerSigi 2 tablets (23.738 g)(P2), NPK Sigi 3 tablets (35,607 g) (P3). Parametersmeasured were age at flowering, harvesting, fruit length, fruit circle, fruit weight, plot production. The results showed that NPK fertilizer tablets Sigi different effect on the production of pineapple plants. NPK fertilizer as much as 3 Tablets Tablets Sigi equivalent to a dose of 35.607 g / plant. The best effect on flowering plant age, time of harvest, fruit length, fruit circle, fruit weight, yield per plot on pineapple plant varieties queen

The Effect of Giving Multiple Doses of Npk Fertilizer Tablet to Growth and Prodictin of Pineaplle (Ananas Comosus (L) Merr) in Peatland

This study aimed to determine the effect of NPK fertilizer tablets Sigi and get the best dosage of pineapple crop production. Research has been conducted in the community garden Desa kualu Nenas Kampar District Riau Province began in February 2014 to June 2014. The study was carried out experiments using arandomized block design (RBD) consists of 4 treatments and 6 replications, each experimental unit consisted of 6 plant. The treatment given is without fertilizer NPK (P0), NPK fertilizer Sigi 1 tablet ( 11.869 g)(P1), NPK fertilizerSigi 2 tablets (23.738 g)(P2), NPK Sigi 3 tablets (35,607 g) (P3). Parametersmeasured were age at flowering, harvesting, fruit length, fruit circle, fruit weight, plot production. The results showed that NPK fertilizer tablets Sigi different effect on the production of pineapple plants. NPK fertilizer as much as 3 Tablets Tablets Sigi equivalent to a dose of 35.607 g / plant. The best effect on flowering plant age, time of harvest, fruit length, fruit circle, fruit weight, yield per plot on pineapple plant varieties queen

Monte-Carlo simulations of thermal/nonthermal radiation from a neutron-star magnetospheric accretion shell

We discuss the space-and-time-dependent Monte Carlo code we have developed to simulate the relativistic radiation output from compact astrophysical objects, coupled to a Fokker-Planck code to determine the self-consistent lepton populations. We have applied this code to model the emission from a magnetized neutron star accretion shell near the Alfven radius, reprocessing the radiation from the neutron sar surface. We explore the parameter space defined by the accretion rate, stellar surface field and the level of wave turbulence in the shell. Our results are relevant to the emission from atoll sources, soft-X-ray transient X-ray binaries containing weakly magnetized neutron stars, and to recently suggested models of accretion-powered emission from anomalous X-ray pulsars.Comment: 24 pages, including 7 figures; uses epsf.sty. final version, accepted for publication in ApJ. Extended introduction and discussio