scholarly journals Germination of Dracaena cinnabari Balf.f. Seeds under Controlled Temperature Conditions

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 521
Author(s):  
Lucie Bauerová ◽  
Shiferaw Alem Munie ◽  
Kateřina Houšková ◽  
Hana Habrová
Keyword(s):  
Germination Rate ◽  
Germination Percentage ◽  
T Test ◽  
Test Results ◽  
Optimal Temperature ◽  
Artificial Regeneration ◽  
Seed Collection ◽  
Different Temperatures ◽  
Test Result ◽  
Dracaena Cinnabari

Research highlights: This study is focused on the germination of Dracaena cinnabari seeds in order to discover the possibility of natural and artificial regeneration of this species. Background and Objectives: This study aimed to determine the optimal temperature for D. cinnabari seed germination, e.g., the temperature at which the germination percentage and germination rate (vitality) are the highest. The objectives of this study are to: (1) determine the optimal temperature for the germination of D. cinnabari seeds, (2) compare the suitability of different seed collection methods, and (3) compare the germination parameters of seeds that were collected from different localities. The results of this study will contribute to obtaining the highest number of seedlings from limited seed material for reforestation of the most endangered localities of D. cinnabari species. Materials and methods: Four seed sections were employed. These sections were directly collected from either the fruits of a cut panicle or the ground and were obtained from different localities that differ in altitude. The seeds were tested in a greenhouse while using Petri dishes at three different temperatures—22, 26, and 30 °C—with four replicates of 25 seeds of each section. ANOVA and the t-test were employed for data analysis. Results: The highest germination percentages (GPs) were achieved at 26 °C and 30 °C, which were 84.6% and 82.5%, respectively. The ANOVA and t-test results showed that the germination index (GI) of the species was relatively higher at a temperature of 30 °C relative to that at other temperatures in the study. Although seeds that were collected from the tree achieved a higher GP, the t-test result showed no significant differences in the GI of D. cinnabari seeds that were collected from the ground and from the tree (p > 0.05). Overall, the findings of this study show that temperature has substantial influence on the germination of seeds of D. cinnabari. Therefore, we recommend a temperature of 30 °C to facilitate the germination of D. cinnabari, as it achieved the highest GI at this temperature relative to that at the other temperatures (22 °C, 26 °C) applied in this study.

Temperature Effect on Seed Germination Performance of a Local Variety of Onion in Bangladesh

2021 ◽  
Vol 1 (01) ◽  
pp. 27-30
Author(s):  
IRANI KHATUN ◽  
RIYAD HOSSEN
Keyword(s):  
Seed Germination ◽  
Temperature Effect ◽  
Performance Test ◽  
Germination Rate ◽  
Germination Percentage ◽  
Optimum Range ◽  
Local Variety ◽  
Different Temperatures ◽  
Local Farmers

Seed germination performance test of Taherpuri onion (a local variety of onion) under six different temperatures (15, 20, 25, 30, 35 and 40°C) was the main goal of this experiment. Germination percentage (GP) was calculated at highest 60.25% at 25°C, and the highest germination rate 20.08 was observed in the same temperature condition. The lowest germination performance (13.25 % germi-nation and 3.32 seeds per day as germination rate) was found at 40°C temperature. Finally, the authors mentioned the temperature 20 to 30°C as optimum range, and suggested the temperature 25°C as best suited for obtaining highest results in case of both germination percentage and germination rate of these seeds. To produce maximum seedlings of the local variety of onion, the mentioned temperature should be followed by the local farmers.

scholarly journals Pengaruh Penambahan Campuran Kapur Tohor dan Kapur Barus (C10H16O) Terhadap Kepadatan Lalat Pada Sampah Organik

2019 ◽  
Vol 16 (1) ◽  
pp. 747
Author(s):  
Fadya Artha Aristanova ◽  
Gunung Setiadi ◽  
Isnawati Isnawati
Keyword(s):  
Organic Waste ◽  
T Test ◽  
Effective Dosage ◽  
P Value ◽  
Test Results ◽  
Waste Sample ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
Test Result

Abstract: The Effect Of Lime (C10H16O) And Camphor (C10H16O) Against The Density Of Flies On Organic Waste. Fly is a disease-carrying vector so it is important to measure the density for control purposes. One of the controls that is done is on organic waste which is a breading source place of flies. Control is done by affixing the mixture of lime and camphor. This research aimed to determine the effect of mixture of lime and camphor against the density of flies in organic waste that is carried out in the garbage construction site while Southern Loktabat. This type of research is quasi-experimental that experimenting the provision of nine variations of dosage mixture of lime and camphor against the density of flies in organic waste with the organic waste sample was about 0,16m3. This research design used Pretest-posttest design. The analysis using statistical paired sample t-test, Kruskal Wallis test, and Least Significant Differences Test. The measurements showed a decrease in the density of the flies after administration of the lime and camphor mixture. Paired T-test results showed that in each treatment the p-value (2-tailed) <α (0.05) means that there is significant difference of flies density before and after treatment. Kruskal Wallis test result showed the p value (0,000) <α (0.05) which means there are significant differences between dosages. LSD test result showed that the most effective dosage is sixth dosage (35gr camphor+ 55gr lime/0,16m3 waste).

scholarly journals Seed colour affects light and temperature requirements during germination in two Lotus species (Fabaceae) of the Arabian subtropical deserts

2016 ◽  
Vol 64 (2) ◽  
pp. 483 ◽  
Author(s):  
Arvind Bhatt ◽  
Sanjay Gairola ◽  
Ali A. El-Keblawy
Keyword(s):  
United Arab Emirates ◽  
Germination Rate ◽  
Germination Percentage ◽  
Survival Strategy ◽  
Desert Environment ◽  
Seed Colour ◽  
Colour Variation ◽  
Temperature Requirements ◽  
Different Temperatures

<p>The effect of seed colour on germination behavior and both light and temperature requirements was assessed in <em>Lotus glinoides </em>and <em>Lotus </em><em>halophilus</em> (Fabaceae) from the hyper-arid deserts of the United Arab Emirates. Germination was assessed in term of both final germination level (percentage) and germination rate, as expressed by Timson’s germination velocity index. <em>Lotus glinoides</em> produces black and yellow-colored seeds and <em>L. halophilus</em> produces green and yellow seeds. Different seed lots were germinated in both light and darkness at different temperatures. Yellow seeds of the two species attained significantly lower germination, compared to black and green seeds. There was no specific light or temperature requirements for the germination of the two coloured seeds of <em>L. glinoides</em>; the effect of interactions between seed colour and both light and temperature of incubation on final germination percentage were not significant. In <em>L. halophilus</em>, green seeds germinated significantly more in both light and darkness at lower temperatures (15/25 °C) and in light at higher temperatures (25/35 °C), compared to yellow seeds. Yellow seeds germinated faster, compared to black at 15/25 °C in <em>L. glinoides </em>and compared to green seeds at15/25 °C and 25/35 °C in <em>L. halophilus</em>. Seed colour variation, at least in <em>L. halophilus</em><em>,</em> could be a survival strategy that would determine the time of germination throughout the year in the unpredictable desert environment.</p>

scholarly journals PENGARUH LATIHAN BERPASANGAN TERHADAP KEMAMPUAN TENDANGAN SABIT PADA PENCAK SILAT SMA NEGERI 15 LUWU

2021 ◽  
Vol 5 (2) ◽  
pp. 101
Author(s):  
Ahmad Ahmad
Keyword(s):  
Data Collection ◽  
Performance Measurement ◽  
Significant Influence ◽  
T Test ◽  
Test Design ◽  
Test Results ◽  
Measurement Instruments ◽  
Sample Number ◽  
Post Test ◽  
Test Result

Based on the pre-test results of students’ sickle kick ability of pencak silat extracurriculer at Sma Negeri 15 Luwu is still relatively low, this study aims to determine the effect of the use of paired exercises in improving sickle kick capability. This study used OneGroup Pre-test - Post-test Design design with a sample number of 15 people. Data collection using a grid of performance measurement instruments skills, as well as dataanalyzed with the help of SPSS 25. Results research shows that paired exercises have an influence on sickle kick capability, this can be seen from the average post-test result of 80.2667 higher than the average pre-test result of 66.4667. And 16,307 t test and ttabel value of 2,145. As such Ha accepted and H0 rejected. This means there is a significant influence of paired exercises toward the students’ ability of sickle kickin the pencak silat extracurriculer at Sma Negeri 15 Luwu.

scholarly journals ANALISIS PENGARUH RASIO KEUANGAN TERHADAP RETURN SAHAM PADA PERUSAHAAN CONSUMER GOODS YANG TERDAFTAR DI BURSA EFEK INDONESIA TAHUN 2012-2014

2020 ◽  
Vol 6 (1) ◽  
pp. 13
Author(s):  
Fitri Amalia Azzahra ◽  
Aftoni Sutanto
Keyword(s):  
Stock Returns ◽  
Consumer Goods ◽  
Stock Return ◽  
Stock Exchange ◽  
T Test ◽  
Test Results ◽  
F Test ◽  
Equity Ratio ◽  
Turn Over ◽  
Test Result

This study is entitled Analysis of the Effect of Financial Financial Ratios on Stock Returns on Consumer Goods Companies Listed on the Indonesia Stock Exchange in 2012-2014. The purpose of this study is to determine whether the variable Current ratio (CR), Debt to Equity Ratio (DER), Earning per Share (EPS), and Total Asset Turn Over (TATO) affect the stock return. The analytical tool used is multiple linear regression, t test, F test, and R2. T test results prove that the CR variable has no effect on stock returns with a probability value of 0.9755, the DER variable has no effect on stock returns with a probability value of 0.9442, the EPS variable has an effect on stock returns with a probability value of 0.0049, and TATO has no effect on stock returns with a probability value of 0.9809. The test results with the F test prove that the variables CR, DER, EPS, and TATO simultaneously have no effect on stock returns with a probability value of 0.050589. The R2 test result, 0.278689, shows that the dependent variable of stock returns can be explained by the independent variables CR, DER, EPS, and TATO by 27.8% while the remaining 72.2% is explained by other variables not examined in this study.

scholarly journals Morphometry and Germination of Passovia pyrifolia, Struthanthus marginatus and Phoradendron mucronatum Diaspores

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
J.M.L. AZEVEDO ◽  
C.G.G. SANTOS ◽  
C.S. CAIRES ◽  
J.C. ARAÚJO NETO ◽  
R.C. SOUZA
Keyword(s):  
Moisture Content ◽  
Germination Rate ◽  
Germination Percentage ◽  
Percentage Germination ◽  
Essential Characteristic ◽  
Germination Time ◽  
Randomized Design ◽  
Different Temperatures ◽  
Mean Germination Time ◽  
Completely Randomized Design

ABSTRACT: The goal of this work was to characterize morphometrically diaspores from three species of mistletoes (Passovia pyrifolia, Struthanthus marginatus e Phoradendron mucronatum), as well as to study its germination behavior according to temperature and luminosity. In germination tests, the completely randomized design was used, in factor scheme 4 x 2, with 4 replications of 15 diaspores. The factors for the first test were different temperatures and two diaspore conditions (intact and without epicarp). In the second test, factors were different light qualities and two diaspore conditions. The analyzed variables were: germination percentage, germination rate index (GRI) and mean germination time (MGT). Mistletoe’s diaspores present an elliptic shape with viscin layer, an essential characteristic for the dispersion of the species. In addition to this, they present a distinction as for the moisture content when compared to the Loranthaceae and Viscaceae, where the latter presents the highest content. Germination is greater at the alternated temperature of 20-30 oC for P. pyrifolia and P. mucronatum diaspores and 20 oC for S. marginatus. Luminosity interfered in the germination of P. mucronatum and S. marginatus but did not influence P. pyrifolia. The diaspore condition influenced the germination of the three studied species, observing a significant increase in their germination when the epicarp was removed. Temperature and luminosity interfere directly in the GRI and MGT of the three mistletoes species.

scholarly journals Pengembangan Buku Ajar Akidah Akhlak untuk Meningkatkan Pemahaman Siswa Madrasah

2019 ◽  
Vol 3 (2) ◽  
pp. 362-375
Author(s):  
Zainuddin Zainuddin
Keyword(s):  
Learning Outcomes ◽  
Error Rate ◽  
Development Process ◽  
T Test ◽  
Test Results ◽  
Final Test ◽  
Test Result

Based on the development process and the test results of the target, it can be concluded as follows (1) result of this activity in the form of textbook of Akidah Akhlak for Madrasah Ibtidaiyah, (2) average learning outcomes in the final test after using textbook increased to 77.25% compared with 67.00% of average learning outcomes in the final test before using textbook. Refers to the T-test and Sig (2-tailed) test result is 0.001 after being compared with the received error rate is 0.05, the developed textbook has been effective.

scholarly journals Pengaruh Bimbingan Kelompok Terhadap Perilaku Asertif Siswa Di SMP Srijaya Negara

2018 ◽  
Vol 2 (2) ◽  
pp. 178
Author(s):  
Rani Mega Putri ◽  
Tri Wahyuni
Keyword(s):  
Data Analysis ◽  
T Test ◽  
Design Experiment ◽  
Test Results ◽  
Analysis Technique ◽  
Post Test ◽  
Assertive Behavior ◽  
Service Data ◽  
Test Result ◽  
Group Guidance

This study aims to determine the influence of group guidance on student assertive behavior in SMP Srijaya Negara Palembang. The population in this study is all students of class VII which amounted to 72 students and the sample amounted to 8 students who have low assertive behavior. The research method used is One Group Pretest-Posttest Design experiment and treatment given 3 times meeting with group guidance service. Data collection techniques used questionnaires or questionnaires. Data analysis technique using t test formula (t-test). Pre-test results showed 8 students who were subjected to the study obtained an average assertive behavior score of 98.62 included in the low category. After being given treatment or treatment of post-test result showed assertive behavior score of 8 students in high category that is average 141,75. From the results of data analysis obtained t count = 14,61 and ttable in significant level 5% that is 2,365, so that known that t count is bigger than ttable or 14,61> 2,365. It can be concluded that there is influence of group guidance on student assertive behavior in SMP Srijaya Negara Palembang.

scholarly journals PENGARUH PENGGUNAAN MODEL PEMBELAJARAN INSIDE OUTSIDE CIRCLE TERHADAP HASIL BELAJAR BAHASA INDONESIA SISWA KELAS 4 DI MI TARBHIYATUSSHIBYAN

2018 ◽  
Vol 1 (2) ◽  
pp. 49
Author(s):  
Melani Hildayanti ◽  
Santi Lisnawati ◽  
Syarifah Gustiawati
Keyword(s):  
Learning Outcomes ◽  
Research Result ◽  
Learning Model ◽  
T Test ◽  
Control Group ◽  
Test Results ◽  
Significance Level ◽  
And Control ◽  
Experimental Group ◽  
Test Result

The purpose of this research is to know the influence of the use of Inside Outside Circle learning model to the learning result. In this study using experimental research method is part of quantitative method, and has its own characteristics especially with the control group and experimental group. Based on data analysis of research result, it can be concluded that: (1) The result of learning of Indonesian 4th graders in MI Tarbiyatusshibyan in experimental class by using Inside Outside Circle learning model got the average result of 82,86 and control class without using Inside Outside Circle gets 69.52 results. (2) There is a difference in the use of Inside Outside Circle learning model to the learning outcomes of grade 4 students at MI Tarbiyatusshibyan. This is shown based on the recapitulation of t test results obtained in both learning that exceeds t table with a significance level of 0.05, that is experimental class learning using Inside Outside Circle learning model has a larger t test result -15.339 than control class learning without using the Inside Outside Circle learning model of -11.306. Thus it can be concluded Ha accepted and Ho rejected that there are differences in learning outcomes are significant between the experimental class and control class.

scholarly journals The Role of Prices, Locations, and Promotions on Smartphone Purchase Decisions in Electronics Shop in Indonesia: a Lesson from Sidoarjo

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Shinta Devi ◽  
Slamet Harjatno
Keyword(s):  
Hypothesis Testing ◽  
Hypothesis Test ◽  
T Test ◽  
Purchase Decisions ◽  
Test Results ◽  
Validity Test ◽  
Simultaneous Test ◽  
A Value ◽  
Test Result

This study aims to determine the effect of price, location and promotion simultaneously and partially to the decision to purchase a smartphone in JH Phone Sidoarjo and to find out the most influential variables on purchasing decision. Hypothesis testing using simultaneous test (F test) and partial test (t test) by using program SPSS version 18.0.The results of research based on Validity Test showed that all research instruments is valid because it has a value of r arithmetic > r table. Based on hypothesis test result showed that the price, location and promotion simultaneously have a significant effect on the decision of purchasing a smartphone in JH Phone Sidoarjo. Hypothesis test results also showed that the price, location and promotion partially have a significant effect on the decision to purchase a smartphone in JH Phone Sidoarjo.

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