scholarly journals PERTUMBUHAN RUMPUT LAUT KAPPAPHYCUS ALVAREZII HASIL KULTUR JARINGAN

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Nunik Cokrowati ◽  
Andy Arjuni ◽  
Rusman Rusman
Keyword(s):  
Tissue Culture ◽  
Experimental Design ◽  
Experimental Method ◽  
Seed Weight ◽  
Kappaphycus Alvarezii ◽  
Optimal Growth ◽  
Seaweed Cultivation ◽  
Cultivation Method ◽  
Absolute Growth ◽  
The Right

         The purpose of this study is to determine the right planting point and seed weight to produce optimal growth Kappaphycus alvarezii. Seaweed cultivation method used is bottom off method and seed used is tissue culture seaweed. This research was conducted from February to April 2016 at Nambung beach, Sekotong Subdistrict, West Lombok regency, West Nusa Tenggara Province. This research used experimental method in field with experimental design that used is Factorial Random Design (Factorial RAL). Treatment consists of 2 factors, where the first factor is 3 different planting point (10 meters from coastline, 20 meter from coastline and 30 meters from the coastline) and the second factor is the weight of different seeds (1.5 gram and 50 gram seed weight). The results showed that the planting position of seaweed and the weight of the seeds used gave effect to absolute growth. The interaction between planting position and seed weight also gives Kappaphycus alvarezii a significantly different growth. The conclusion of this research is the use of planting point and seed weight give interaction to each other.Keywords: growth, tissue culture, bottom off method, weight, cultivated

scholarly journals STUDI PERTUMBUHAN BIBIT RUMPUT LAUT (Kappaphycus alvarezii) HASIL KULTUR JARINGAN DENGAN METODE LONGLINE BERBINGKAI DI BALAI BESAR PERIKANAN BUDIDAYA LAUT LAMPUNG

2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Suci Rachmawati ◽  
Annur Ahadi Abdillah
Keyword(s):  
Growth Rate ◽  
Tissue Culture ◽  
Kappaphycus Alvarezii ◽  
Economic Value ◽  
Seaweed Cultivation ◽  
Seaweed Farming ◽  
Long Line ◽  
Absolute Growth ◽  
Fishery Products ◽  
Better Than

Seaweed is one of the important commodities of fishery products that have economic value. Farmers often use repetitive seeds from the same broodstock so that they have the potential to experience a decline in quality. So it is necessary to do a study of seaweed cultivation using tissue culture seedling with the long line method as an effort to develop seaweed farming. Seaweed (Kappaphycuz alvarezii) has an absolute growth of 138.61 grams, with a growth rate of 4.85%. The growth of seaweed from tissue culture seedlings is better than the growth of conventional seedlings.

scholarly journals Pertumbuhan Rumput Laut Gracilaria sp. pada Media yang Mengandung Tembaga (Cu) dengan Konsentrasi yang Berbeda

2018 ◽  
Vol 7 (1) ◽  
pp. 15
Author(s):  
Endang Supriyantini ◽  
Gunawan Widi Santosa ◽  
Ladies Nikita Alamanda
Keyword(s):  
Growth Rate ◽  
Experimental Design ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Sea Water ◽  
Day Treatment ◽  
Seaweed Cultivation ◽  
Treatment Control ◽  
Absolute Growth Rate ◽  
Absolute Growth

Budidaya rumput laut banyak dilakukan untuk memenuhi dan meningkatkan produksinya, namun masih banyak kendala, sehingga hasil produksinya belum stabil. Hal ini dapat dilihat dengan pemberian nutrien yang diharapkan akan meningkatkan pertumbuhannya. Tujuan dari penelitian untuk mengetahui pertumbuhan dan kemampuan absorpsi Gracilaria sp. pada media yang mengandung Cu dengan konsentrasi yang berbeda. Metode yang digunakan adalah metode eksperimental laboratoris dengan Rancangan Acak Lengkap (RAL). Perlakuan penambahan konsentrasi Cu pada media pemeliharaan yang terdiri dari 4 tingkat yaitu kontrol (0,036 ppm, sesuai dengan konsentrasi Cu pada air laut), 0.5 ppm, 5 ppm, dan 50 ppm dengan 3 pengulangan. Hasil memperlihatkan bahwa penambahan Cu dengan konsentrasi yang berbeda  memiliki pengaruh nyata (p < 0,05) terhadap pertumbuhan dan kemampuan absorpsi pada Gracilaria sp. Pertumbuhan Gracilaria sp. tertinggi dicapai pada perlakuan A (kontrol) dengan pertambahan berat sebesar 25,34 g dan laju petumbuhan spesifik (SGR) sebesar 0,43%. Nilai pertumbuhan mutlak dan laju pertumbuhan spesifik (SGR) yang didapatkan pada perlakuan B (0,5 ppm) sebesar  -80,37 g dan -1,84% per hari, perlakuan C (5 ppm) sebesar -85,19 g dan -2,02% per hari, dan perlakuan D (50 ppm) sebesar -99,19 g dan -2,47% per hari. Semakin tinggi konsentrasi Cu yang diberikan maka pertumbuhan Gracilaria sp. akan semakin rendah. Seaweed cultivation is done to meet and improve its production, but there are still many obstacles, so its results are not yet stable. This can be seen with the awarding of the nutrients that will hopefully increase its growth. The goal of the research is to know the growth and absorption ability of Gracilaria SP. in medium containing different concentrations of Cu with. The method used is the method of experimental design of randomized Complete laboratories (RAL). Addition of Cu concentration on treatment of media maintenance which consists of 4 levels, namely control (0.036 ppm, according to the concentration of Cu in sea water), 0.5 ppm, 5 ppm and 50 ppm, with three repetitions. The results showed that the addition of Cu with a different concentration of real influence (p < 0.05) towards growth and the ability of absorption on Gracilaria sp. Highest growth of Gracilaria sp. was achieved on A treatment (control) and the increase of the weight of 25.34 g and specific growth rate (SGR) of 0.43%. The absolute growth rate and specific growth rate (SGR) obtained at the treatment B (0.5 ppm) of -80.37g and-1.84% per day, treatment C (5 ppm) of -85.19 g and -2.02% per day, and treatment D (50 ppm) for -99.19 g and -2.47% per day. The higher the concentration of Cu given, then the growth of Gracilaria sp. will be even lower. 

scholarly journals Effect of Subculture Frequency Toward Growth And Carotenoid Content from Tomato (Lycopersicon Esculentum Mill.) Callus

2020 ◽  
Vol 5 (2) ◽  
pp. 303-315
Author(s):  
Reni Indriani ◽  
Erma Prihastanti ◽  
Rini Budihastuti ◽  
Yulita Nurchayati
Keyword(s):  
Tissue Culture ◽  
Lycopersicon Esculentum ◽  
Raw Materials ◽  
Optimal Growth ◽  
Optimal Treatment ◽  
Carotenoid Content ◽  
Lycopersicon Esculentum Mill ◽  
Randomized Design ◽  
Growth Development ◽  
The Right

Tomatoes (Lycopersicon esculentum Mill.) are a source of carotenoids they are easy to find. These compounds function as precursors of vitamin A, antioxidant, and prevent cancer. The extraction of carotenoid compounds for commercial products usually uses fresh plants, which are less efficient and require a lot of raw materials. The supply of these raw materials can be done through tissue culture. The frequency of subculture or supply of nutrients in tissue culture is very influential on the content of callus carotenoids produced. This study aimed to determine the effect of subculture frequency on growth, development and callus carotenoid content and to find out the right frequency of subculture to produce callus with optimal growth, development and carotenoid content. The design this study was a single Completely Randomized Design (CRD) with 4 treatments of subculture frequency and 5 replications. The data obtained were analyzed by ANOVA at the 95% test level followed by DMRT in case a significant different was found The results showed subculture frequency affected growth, development and carotenoid content of callus Lycopersicon esculentum. Mill. The most optimal treatment to induce growth and production of carotenoids in this study was treatment of thrice subculture while the most optimal treatment in inducing development was the twice subculture treatment.

RECENT STUDIES ON IMMUNIZATION AGAINST POLIOMYELITIS

PEDIATRICS ◽  
1953 ◽  
Vol 12 (5) ◽  
pp. 471-482
Author(s):  
JONAS E. SALK
Keyword(s):  
Experimental Method ◽  
Virus Vaccine ◽  
Simple Fact ◽  
Naturally Occurring ◽  
Immunologic Markers ◽  
The One ◽  
The Right ◽  
Fast Lane ◽  
The Way

The simple fact is: That an experimental method for inducing measurable amounts of antibody for the three known poliomyelitis viruses, employing a killed-virus vaccine is available, and it now becomes possible to determine whether—and to what extent—the incidence of naturally occurring paralysis may be influenced. All that should be inferred now is that studies are progressing satisfactorily; there have been no set-backs nor anything but revelations that shed more light on the course ahead. We must continue to regard the experimental developments to date as providing immunologic markers along the way that tell us whether we are on the right road. That there is more to do now than before indicates that we have not stumbled down a by-way but have selected a road, with many lanes, that seems long indeed. Our problem is to select not only the fast lane but the one that is safest and most certain.

scholarly journals Soil preparation and NPK fertilization in the planting of five Atlantic Rainforest species in a clay extraction area

2020 ◽  
Vol 42 ◽  
pp. e36
Author(s):  
Ana Paula Braido Pinheiro ◽  
Adriele Dos Santos Jardim ◽  
João Vitor Garcia Silva ◽  
Adriano Alves Fernandes ◽  
Fábio Ribeiro Pires ◽  
...  
Keyword(s):  
Growth Rate ◽  
Experimental Design ◽  
Native Species ◽  
Atlantic Rainforest ◽  
Extraction Area ◽  
Absolute Growth Rate ◽  
Absolute Growth ◽  
Soil Preparation ◽  
Number Of Leaves ◽  
Npk Fertilization

The occurrence of degraded areas worldwide grows each year and measures must be taken to mitigate degradation and to recover these areas. The aim of this study was to assess the effect of soil preparation and NPK levels on the growth of five native species of the Atlantic Rainforest in clay extraction area. The experimental design was randomized block in a split-split plot arrangement with four replications. Subsoiling and scarification soil preparation represented main plots.  Doses of NPK 04-14-08: 0; 40; 80;160; and 320 g pit-1 represented subplots and Atlantic Rainforest native species represented sub-subplots. Absolute growth rate, stem diameter and number of leaves were evaluated, 210 days after planting. The type of soil preparation did not influence the development of the species. The best dose for Dalbergia ecastaphyllum, Inga laurina, Protium heptaphyllum and Psidium cattleyanum were 176.49, 150.18, 199.25 and 166.48 g pit-1 of NPK, respectively. Schinus terebinthifolius was highly responsive to planting fertilization, being recommended 320 g pit-1 of NPK. All species are indicated for area recovery.

scholarly journals Production Performance of Gracilaria verrucosa using Verticulture Method with Various Wide Planting Area in Karimunjawa

Omni-Akuatika ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 47
Author(s):  
Titik Susilowati ◽  
Agus Nadlir ◽  
Alfabetian Harjuno Condro Haditomo ◽  
Seto Windarto ◽  
Dicky Harwanto ◽  
...  
Keyword(s):  
Growth Rate ◽  
Specific Growth ◽  
Mesh Size ◽  
Gracilaria Verrucosa ◽  
Production Performance ◽  
Market Demand ◽  
Seaweed Cultivation ◽  
Relative Growth ◽  
Absolute Growth ◽  
Potential Area

Gracilaria verrucosa is one type of seaweed that can be developed into a high-value product. Market demand for agar reaches 21.8% per year, but only 13.1% can be met. This is due to the low level of production of G. verrucosa in Indonesia. Utilization of G. verrucosa is still relying on aquaculture from the farm, which causes low production. Cultivation of seaweed with verticulture methods can increase the production of G. verrucosa. Karimunjawa is a potential area for seaweed cultivation. The aim of this study is to determine the effect of different density areas on the growth and production of G. Verrucosa and to determine the best density area for its production in Karimunjawa. This research used G. verrucosa wrapped in a mesh size of 0.5cm with a weight of 50g per pack. Each verticulture strap contains 4 packs and each treatment consists of 9 straps. The treatment was in the form of differences in the planting area of 25x25cm2 (A), 50x50cm2 (B) and 75x75cm2 (C). The results showed significant differences (P <0.01) between each treatment. The 75x75cm2 area has the best yield on absolute growth, relative growth rate (RGR) and specific growth rate (SGR) of 83.10 ± 4.12g; 3.96 ± 0.20% / day and 2.33 ± 0.07% / day. The best results of G. verrucosa production obtained at an area of 50x50cm2 (5.32 ± 0.26 kg / m2).

scholarly journals Fuzzy logic based prediction of micronutrients demand for harumanis mango growth cycles

2021 ◽  
Vol 2107 (1) ◽  
pp. 012048
Author(s):  
W M Nooriman ◽  
A H Abdullah ◽  
N Abdul Rahim ◽  
Erdy Sulino Mohd Muslim Tan
Keyword(s):  
Fuzzy Logic ◽  
Mangifera Indica ◽  
Optimal Growth ◽  
Growth Stages ◽  
Moderate Amount ◽  
Application Timing ◽  
Logic Control ◽  
K Fertilizer ◽  
The Right ◽  
Fertilizer Solution

Abstract Harumanis is a famous green eating mango cultivar that has been commercially cultivated in Malaysia’s state of Perlis. A variety of nutrients are found in soil, all of which are necessary for plant growth. Micronutrients such as Nitrogen (N), Phosphorus (P), and Potassium (K) are essential for Harumanis mango (Mangifera Indica) to growth. The importance of soil fertility in achieving high plant productivity and quality cannot be overstated. It should be used in a moderate amount and in a balanced manner. Predicting appropriate nutrients and the right timing to satisfy the tree’s demands is critical. The aim of this study is to create for Harumanis mango a fuzzy logic-based system to analyse the results of soil tests for nitrogen (N), phosphorus (P), and potassium (K) in the Harumanis mango orchard. The interpreted data are used to estimate N-P-K nutrient levels and indicate the optimal fertilizer solution and application timing for each Harumanis growth stages. The system utilizes Fuzzy Logic Control (FLC) to predict the nutrients demand for Harumanis mango growth. Results shows the system able to calculate and predict values of required N-P-K fertilizer for optimal growth. Thus, assist farmers in predicting the proper amount of N-P-K to apply to Harumanis mango soil.

scholarly journals Menemukan Strategi Pengembangan Kawasan Industri Melalui Analisis Sektor Unggulan Kota Binjai

2016 ◽  
Vol 4 (1) ◽  
pp. 45
Author(s):  
Dessy Eresina Pinem
Keyword(s):  
Service Sector ◽  
Building Materials ◽  
Optimal Growth ◽  
Industrial Area ◽  
Industrial Sector ◽  
Local Potential ◽  
High Tech ◽  
Multiplier Effects ◽  
The Government ◽  
The Right

<pre><em>The industrial sector is a primary sector has the potential to create a progressive growth in a region. The growth in the region rely on the industrial sector was driven by sales of production, employment, and other multiplier effects so </em><em>that </em><em>many </em><em>of </em><em>districts or cities in North Sumatra </em><em>try</em><em> to develop this sector. The industr</em><em>y </em><em>that can be developed </em><em>is</em><em> an appropriate industrial potential and local resource to be optimal growth in the region. In RTRW Kota Binjai years 2011 - 2030, District of North Binjai designated as an industrial area. Industries that are planned to be developed are a high-tech industry. But the problem is whether the type specified in the RTRW industry is the industry that corresponds to the potential of local resources and the District of North Binjai? The purpose of this paper is to find the right industry to be developed by local potential or excellence, especially in the District Binjai Utara Binjai. The analytical tool used is the analysis of LQ, shift share and SWOT discovered the potential and advantages that can be seen Binjai compliance with industry directed by RTRW. The analysis </em><em>results </em><em>show that the industrial sector is not a primary</em><em> </em><em>sector or potential sector in Binjai. The results of LQ and shift share analysis show that the sector with the potential to be developed in Binjai was the construction sector, finance, and services. The similarity with the RTRW policy is only in the service sector. This shows that the service sector can be developed while the computer industry, multimedia, publishing, and printing) is not in accordance with the local potential. However, if the government still wants to develop the industrial sector in North Binjai, there should be diversification strategies, namely building-related industry sectors, such as industry superior building materials and mining industries.</em><em></em></pre>

Effects of 3D vs 2D interfaces and product-coordination methods

2019 ◽  
Vol 47 (8) ◽  
pp. 855-871
Author(s):  
Ahmad Saquib Sina ◽  
Juanjuan Wu
Keyword(s):  
College Students ◽  
Experimental Design ◽  
Design Methodology ◽  
Online Shopping ◽  
Female College Students ◽  
Content Type ◽  
Female College ◽  
Patronage Intention ◽  
The Right ◽  
Coordination Methods

Purpose The purpose of this paper is to examine the effects of product display based on colour, discount and brand on retail pleasure, arousal, flow, perceived merchandise quality, time spent, satisfaction and patronage intentions in both 3D and 2D interfaces. This study uses the flow theory and stimulus-organism-response framework to understand the effects of product coordination methods and interface dimensions on consumers’ emotional, cognitive and behavioural outcomes. Design/methodology/approach This study conducted a 2 (interface: 3D and 2D) × 3 (product coordination method: colour, discount and brand) between-subjects experimental design. The coordination of display refers to the way products are arranged based on similar properties, such as similar colour, discount or brand. 3D stores were designed using Mockshop, a 3D virtual retailing software. A total of 144 US female college students from various universities participated in the study. Findings The findings showed that the 3D interface produced higher flow, satisfaction, time spent and patronage intention than the 2D interface. Also, among the six display scenarios, participants who were in the colour-coordinated 3D store showed the highest levels of emotional, cognitive and behavioural outcomes except for retail pleasure and arousal. Originality/value This study investigates product display based on colour, discount and brand in both 3D and 2D interfaces. Although product coordination methods have been tested in 3D stores in previous studies, they have not been compared with their effects in the 2D interface such as online shopping sites. Therefore, this study fills in this gap in the literature, which can guide retailers in making the right decisions for visuals.

scholarly journals PEMANFAATAN ANGKAK SEBAGAI PEWARNA ALAMI DAN ANTIOKSIDAN PADA SOSIS IKAN KEMBUNG (Rastrelliger kanagurta L.)

2019 ◽  
Vol 8 (2) ◽  
pp. 197
Author(s):  
Justicia Febi Estermaria Pandiangan ◽  
I Nengah Kencana Putra ◽  
I Desak Putu Kartika Pratiwi
Keyword(s):  
Experimental Design ◽  
Antioxidant Capacity ◽  
Color Intensity ◽  
Content Change ◽  
Antioxidant Content ◽  
Organoleptic Characteristics ◽  
Randomized Design ◽  
Treatment Factor ◽  
Completely Randomized Design ◽  
The Right

This research was conducted to identify the effect of adding angkak on the color, antioxidant content, change the number of TBA sausage for six days of storage, sensory’s characteristic of mackerel fish sausage, and to identify the right percentage to adds angkak can improve the color, antioxidant content, and change the number of TBA for six days of storage, and sensory’s characterisctic of mackerel fish sausage. The experimental design used was a completely randomized design (CRD). Treatment factor was consist of six concentrations: 0%, 0,5%, 1%, 1,5%, 2%, and 2,5%. Each treatment had three replications so that obtained 18 units of trial. Observations were made on intensity of colour, antioxidant capacity, number of TBA, and organoleptic characteristics (hedonic test and scoring test). Data were analyzed by One-Way Analysis of Variance at level of 1% and 5% and continued by Duncan. The addition of angkak has affected very significant on color intensity, antioxidant capacity, number of TBA, color, taste, and overall acceptance, also significant on texture of mackerel fish sausage. On the others hand, it has not affected on flavor of mackerel fish sausage. The right concentration is obtained from the use of 1 % angkak. It has L*’s score 31,71; a*’s score 21,10; b*’s score 21,13; antioxidant capacity 53,37 mg GAEAC/kg; number of TBA for the 6th day 0,31 g malonaldehide/kg, color rather faded red and rather liked, flavor rather liked, texture liked, taste bitter weak and liked, and overall acceptance liked.

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