scholarly journals VIGOR AND VIABILITY TEST OF CUCUMBER SEED USING NaOCl AND DIFFERENT DRYNG METHODS

2021 ◽  
Vol 2 (2) ◽  
pp. 33-37
Author(s):  
Kartina Kartina ◽  
Mardhiana Mardhiana ◽  
Wiwik Karlina
Keyword(s):  
Viability Test ◽  
Cucumber Seed

Mentimun merupakan salah satu buah yang menghasilkan benih yang memiliki selaput daging/berlendir (pulp). Adanya pulp pada benih dapat menghambat perkecambahan. Hal tersebut menyebabkan kendala dalam produksi benih. Oleh karena itu untuk memisahkan pulp dari benih dapat dilakukan dengan berbagai metode seperti ekstraksi dengan bahan kimia maupun dengan teknik pengeringan. Penelitian ini bertujuan untuk mengetahui respon perkecambahan benih mentimun terhadap ekstraksi dengan NaOCl dan metode pengeringan berbeda. Metode penelitian ini adalah eksperimen dengan rancangan acak kelompok (RAK) faktorial terdiri dari 8 kombinasi perlakuan dengan 3 ulangan. Tahapan penelitian meliputi persiapan benih, perlakuan, penyemaian benih dan pengamatan. Hasil analisis sidik ragam menunjukkan bahwa perendaman NaOCl atau Pengeringan dan kombinasi kedua perlakuan tidak memberikan pengaruh nyata pada semua variabel pengamatan. Namun, Perendaman dengan NaOCl 5% dapat meningkatkan indeks vigor 96,67%, kecepatan tumbuh 7.69% dan potensi tumbuh maksimum benih mentimun hingga 100% lebih baik dibandingkan dengan perlakuan lainnya

CASSETTE TECHNOLOGY FOR OPEN GROUND CUCUMBER SEED-LINGS GROWING WITH APPLICATION OF HYDROGEL

2018 ◽  
Vol 9 ◽  
pp. 55-60
Author(s):  
N.A. Engalycheva ◽  
◽  
J.I. Engalychev ◽  
K.L. Alekseeva ◽  
M.I. Ivanova ◽  
...  
Keyword(s):  
Cucumber Seed ◽  
Open Ground

Application of Machine Perfusion Preservation as a Viability Test for Marginal Kidney Graft

2006 ◽  
Vol 82 (11) ◽  
pp. 1425-1428 ◽  
Author(s):  
Naoto Matsuno ◽  
Osamu Konno ◽  
Abudushukur Mejit ◽  
Yoshimaro Jyojima ◽  
Isao Akashi ◽  
...  
Keyword(s):  
Kidney Graft ◽  
Machine Perfusion ◽  
Viability Test

scholarly journals Non-Deep Physiological Dormancy in Seed and Germination Requirements of Lysimachia coreana Nakai

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 490
Author(s):  
Saeng Geul Baek ◽  
Jin Hyun Im ◽  
Myeong Ja Kwak ◽  
Cho Hee Park ◽  
Mi Hyun Lee ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seed Dormancy ◽  
Germination Rate ◽  
Seed Viability ◽  
Cold Stratification ◽  
Dormancy Breaking ◽  
Viability Test ◽  
Physiological Dormancy ◽  
Different Temperatures ◽  
Germination Requirements

This study aimed to determine the type of seed dormancy and to identify a suitable method of dormancy-breaking for an efficient seed viability test of Lysimachia coreana Nakai. To confirm the effect of gibberellic acid (GA3) on seed germination at different temperatures, germination tests were conducted at 5, 15, 20, 25, 20/10, and 25/15 °C (12/12 h, light/dark), using 1% agar with 100, 250, and 500 mg·L−1 GA3. Seeds were also stratified at 5 and 25/15 °C for 6 and 9 weeks, respectively, and then germinated at the same temperature. Seeds treated with GA3 demonstrated an increased germination rate (GR) at all temperatures except 5 °C. The highest GR was 82.0% at 25/15 °C and 250 mg·L−1 GA3 (4.8 times higher than the control (14.0%)). Additionally, GR increased after cold stratification, whereas seeds did not germinate after warm stratification at all temperatures. After cold stratification, the highest GR was 56.0% at 25/15 °C, which was lower than the GR observed after GA3 treatment. We hypothesized that L. coreana seeds have a non-deep physiological dormancy and concluded that 250 mg·L−1 GA3 treatment is more effective than cold stratification (9 weeks) for L. coreana seed-dormancy-breaking.

scholarly journals Prevalence and Economic Significance of Hydatidosis on Cattle Slaughtered at Nekemte Municipal Abattoir, Western Ethiopia

2020 ◽  
Vol 5 (3) ◽  
pp. 57-63
Author(s):  
Tuge Temesgen ◽  
Keyword(s):  
Risk Factors ◽  
Public Awareness ◽  
Cattle Breed ◽  
Cross Sectional Study ◽  
Hydatid Cysts ◽  
Financial Loss ◽  
Cross Sectional ◽  
Viability Test ◽  
Significant Difference ◽  
And Control

Aim The study was conducted to determine the prevalence of hydatidosis, to identify the association between expected risk factors and occurrence of the disease, to investigate economic importance and to evaluate fertility and viability of the hydatid cyst in cattle slaughtered at the abattoir. Materials and Methods A cross-sectional study, which involves both ante-mortem and post-mortem examination, was conducted at Nekemte municipal abattoir from November 2015 to March 2016. Results A total of 355 local cattle breed was randomly sampled and examined for the presence of hydatid cysts in the organs of the animals using the standard meat inspection procedures, 66 (18.6%) animals were found harboring hydatid cysts. Statistical analysis showed that there was a significant difference (p<0.05) between the prevalence of bovine hydatidosis in all risk factors with exception of sex of the animals. Among 207 hydatid cysts recorded, 93 (44.92%) were from lungs, 65 (31.40%) from livers, 4 (1.93%) from heart, 3 (1.44%) from kidney, 1 (0.48%) from spleen and 41 (19.8%) were in two organs from lung and liver. Fifty-seven (57) of these 207 cysts were randomly selected and subjected to fertility and viability test which revealed 19 (33.33%) as fertile, 25 (43.86 %) sterile and 13 (22.81%) calcified. Viability test proved 7 (12.28%) of 19 fertile cysts as viable and 12 (21.05%) of 19 fertile cysts as non-viable. Viability of cysts in different organs revealed that 5 (16.1%) and 2 (10%) of cysts from lungs and liver, respectively. The estimated financial loss during the study period both due to condemnation of organs and an in direct carcass weight loss from hydatidosis was 2,190,143.52 ETB. Conclusion The results of this study revealed that bovine hydatidosis was an economically important disease of cattle which need serious attention for prevention and control actions in and around Nekemte. Hence, establishment of well-equipped standardized abattoirs, prohibition of backyard slaughter, creation of public awareness, deworming and control of stray dogs are of paramount importance.

scholarly journals Effect of 405 nm Diode Laser with Varying Irradiation Time on BHK-21 Fibroblast Viability

2019 ◽  
Vol 9 (1) ◽  
pp. 13
Author(s):  
Kun Ismiyatin ◽  
Leidy Herlin Rumbiak ◽  
Widya Saraswati ◽  
Sri Kunarti ◽  
Anuj Bhardwaj
Keyword(s):  
Laser Diode ◽  
Irradiation Time ◽  
Control Cell ◽  
Stimulated Emission ◽  
Fibroblast Cells ◽  
Optical Amplification ◽  
Viability Test ◽  
Inhibition Response ◽  
Levene Test ◽  
Radiation Time

Background: Laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation; it can be used for surgery, detoxification, bio stimulation and antibacterial. However, lasers have Biphasic Dose Response (BDR), which is bio stimulation and bio inhibition. To determine if 405 nm laser diode is biocompatible, viability test is necessary before these lasers can be labeled as viable to use in dental therapy. Aim: To prove the variation of radiation time of the 405 nm laser diode radiation can cause bio stimulation and bio inhibition response that affects the viability of BHK-21 fibroblast cells. Method: Viability test was carried out using BHK-21 fibroblast cells which were inserted into 96-well microplate, then radiated with 405 nm laser diode with varying irradiation time of 30s, 60s, 120s, 240s and 480s. After radiation, the cells are then incubated for 24h. Cytotoxicity was observed using MTT assay and ELISA reader. Data was analyzed using the Kolmogorov-Smirnov test, Levene Test, Welch ANOVA, and Tukey HSD. Results: BHK-21 fibroblast cells radiated with 405 nm laser diode with radiation time of 30s, 60s, 120s, and 240s have the same viability as the control cell, while at 480 seconds the viability exceeds that of the control cell. Conclusion: 405 nm laser diode with radiation times of 30s, 60s, 120s, and 240s do not affect the viability of BHK-21 fibroblast cells. Meanwhile, 480s irradiation time of 405 nm laser diode causes bio stimulation response that increases the viability of BHK-21 fibroblast cells.

scholarly journals Seed viability of common ragweed (Ambrosia artemisiifolia L.) is affected by seed origin and age, but also by testing method and laboratory

NeoBiota ◽  
2021 ◽  
Vol 70 ◽  
pp. 193-221
Author(s):  
Rea Maria Hall ◽  
Bernhard Urban ◽  
Hana Skalova ◽  
Lenka Moravcová ◽  
Ulrike Sölter ◽  
...  
Keyword(s):  
Seed Viability ◽  
Ambrosia Artemisiifolia ◽  
Testing Methods ◽  
Triphenyltetrazolium Chloride ◽  
Viability Test ◽  
Common Ragweed ◽  
Testing Procedures ◽  
Testing Method ◽  
Seed Origin ◽  
Set Up

Common ragweed (Ambrosia artemisiifolia L.) is an annual Asteraceae species native to North America which is highly invasive across Europe and has harmful impacts, especially on human health and agriculture. Besides its wide ecological range, particularly its high reproductive power by seeds is promoting its spread to various habitats and regions. To prevent further spread and to control the plant, the European Commission funded projects and COST-Actions involving scientists from all over Europe. A joint trial was set up comprising eight different laboratories from Europe to study seed viability variation in different seed samples. Three different testing methods (viability test with 2,3,5-triphenyltetrazolium chloride (TTC), a germination test combined with a subsequent TTC test and a crush test) were tested within the EU-COST-Action SMARTER network to four different seed origins. The viability test results from different laboratories were compared for variation amongst tests and laboratories. The main aim was to optimise the reliability of testing procedures, but results revealed not only significant effects of seed origin and seed age on seed viability, but also considerable differences between the output of the individual testing methods and furthermore between laboratories. Due to these significant differences in the results of the testing labs, additionally a second test was set up. Twelve Austrian ragweed populations were used for TTC testing to obtain a precise adjustment of the testing method as well as a tight guideline for interpreting the results, particularly for the TTC state “intermediate” since a proper classification of TTC-intermediate coloured seeds is still a challenge when determining viability rates.

Examination of Cucumber Seed for Mycosphaerella melonis

1968 ◽  
Vol 17 (3) ◽  
pp. 116-118 ◽  
Author(s):  
Marion E. Brown ◽  
T. F. Preece
Keyword(s):  
Cucumber Seed ◽  
Mycosphaerella Melonis
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