scholarly journals Controlled Deterioration and Accelerated Aging Tests to Estimate the Relative Storage Potential of Cucurbit Seed Lots

HortScience ◽  
2008 ◽  
Vol 43 (5) ◽  
pp. 1544-1548 ◽  
Author(s):  
Ibrahim Demir ◽  
Kazim Mavi
Keyword(s):  
Moisture Content ◽  
Correlation Coefficient ◽  
Accelerated Aging ◽  
Aluminum Foil ◽  
Storage Conditions ◽  
Test Results ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Radicle Emergence ◽  
Controlled Deterioration

The laboratory germination (radicle emergence) percentages of 9 watermelon, 12 melon, and 7 cucumber seed lots were tested after storing in relatively adverse storage conditions of 25 °C and 12% mc for 6, 12, and 18 months in sealed aluminum foil packets. The laboratory germination (radicle emergence) of lots was determined after controlled deterioration (CD) at 45 °C with 20% or 24% moisture content (mc) for 48, 72, 96, 120, and 144 h. The accelerated aging test (AA) was conducted at 45 °C for the same aging periods. A number of seed lots was dead by 12 and 18 months in watermelon and cucumber, respectively. Various combinations of test regimens were found to be correlated with laboratory germination after 6 months storage, but the most consistent regimens for AA tests was 96 h at 45 °C in all species (r = 0.71 to 0.98). In the CD tests, 72 h with 20% mc at 45 °C gave the best correlation (r = 0.86 to 0.96). These conditions of highest correlation were observed after laboratory germination after 6 months storage and are suggested as good predictors of storage life in cucurbit seed lots. The initial standard germination before storage was also significantly correlated with seed longevity, but the correlation coefficient was generally lower (r = 0.60 to 0.83) than the AA and CD test results and separation of lots less clear.

scholarly journals Pengembangan Metode Pengusangan Cepat Fisik Benih Pepaya (Carica papaya L.)

2019 ◽  
Vol 2 (3) ◽  
pp. 7
Author(s):  
Dyah Priandini ◽  
Muhamad Rahmad Suhartanto ◽  
Abdul Qadir
Keyword(s):  
Moisture Content ◽  
Aging Time ◽  
Seed Quality ◽  
Block Design ◽  
Accelerated Aging ◽  
Seed Moisture Content ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
The Impact ◽  
Papaya Seed

Development of papaya fruit production is influenced by the availability of seed quality. High seed quality is maintained during seed storage. Estimation of vigor in relation to storability can be detected by accelerated aging test. This research aims to develop physicall accelerated aging test by, 1)determine the impact of physical accelerated aging on vigor and viability parameters on papaya seed variety Callina and Sukma, 2) determine the levels of seed moisture content and effective period of physicall accelerated aging to predict vigor of papaya seed. This research was conducted at the Laboratory of Seed Science and Technology and Green House Leuwikopo, Department of Agronomy and Horticulture, IPB in January-May 2016 using a randomized complete block design with three replications. Seeds aged by the aging equipment MPC IPB 77-1 MMM. The results showed that the aging time decreased germination value in papaya seed variety Callina and Sukma with equation y=-0.1389x3+3.3333x2–25.25x+81.5 and y=0.0171x3+0.2028x2-9.9956x+81.095. Effective imbibition is 96 hour with moisture content 63-70% in both varieties. The effective of aging time treatment at 0x4, 1x4, 2x4, 3x4, dan 4x4 minutes.Keywords:imbibition, moisture content, viability, vigor

scholarly journals Accelerated aging and controlled deterioration for the determination of the physiological potential of onion seeds

2003 ◽  
Vol 60 (3) ◽  
pp. 465-469 ◽  
Author(s):  
Angelica Brod Rodo ◽  
Julio Marcos Filho
Keyword(s):  
Moisture Content ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Seed Moisture Content ◽  
Control Programs ◽  
Traditional Procedure ◽  
Accelerated Aging Test ◽  
Seed Moisture ◽  
Controlled Deterioration

International research on vegetable seed vigor is not at the same level attained for grain crops species. This study was conducted to identify reliable procedures for the accelerated aging and controlled deterioration tests to rank onion (Allium cepa L.) seed lots according to their physiological potential. Six seed lots of the cultivars Aurora and Petroline were evaluated in the laboratory for germination, first count, seedling vigor classification, traditional and saturated salt accelerated aging (41ºC / 48 and 72 h), controlled deterioration (24% of water / 45ºC / 24 h) and seedling emergence tests. Seed moisture content after the saturated salt accelerated aging test was lower and uniform, which is considered an important advantage in comparison to the traditional procedure. The saturated salt accelerated aging (41ºC / 48 and 72 h) and controlled deterioration (moisture content adjusted to 24% / 45ºC / 24 h) tests were the best procedures to assess the physiological potential of onion seeds, and are indicated for use in quality control programs.

Assessment of soybean seed vigour tests for eastern Australia

1996 ◽  
Vol 36 (1) ◽  
pp. 99
Author(s):  
M Boersma ◽  
M Law ◽  
SW Adkins
Keyword(s):  
Incubation Period ◽  
Seedling Emergence ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Field Capacity ◽  
Seed Vigour ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Eastern Australia ◽  
Controlled Deterioration

Vigour testing was undertaken on seed from 4 soybean [Glycine max (L.) Merr.] cultivars taken from field trials in eastern Australia. The seed from each cultivar exhibited moderate to good germination and a range in vigour. Vigour tests consisted of the controlled deterioration and modified versions of the accelerated aging test. Accelerated aging was carried out in 4 ways using 2 periods of incubation (76 and 96 h), with or without the seed protectant Thiram to control saprophytic fungi. Results were compared with seedling emergence from the same seed samples when planted in a controlled environment glasshouse. A combination of 2 day/night temperatures, cold (18/13�C), warm (33/28�C), and 3 soil moisture regimes, dry (-0.3 MPa), field capacity (-0.01 MPa) and saturated soil, produced a total of 6 different environments. Emergence was also recorded under a moderate daylnight temperature of 23/18�C in soil at field capacity. The standard germination test and modified accelerated aging test with a 72-h incubation period with Thiram were significantly (P<0.01) correlated with emergence from all 7 soil environments. A 96-h period of accelerated aging (with or without Thiram) tended to suppress germination and there was no correlation with emergence from most soil environments. The controlled deterioration test correlated with seedling emergence from most soil environments except for dry soil. The vigour test which gave the best indicator of performance under a range of different seedbed moisture and temperature conditions was the modified accelerated aging test using a 72-h incubation period with Thiram.

scholarly journals Assessment of the physiological potential of spinach seeds (Tetragonia tetragonoides (Pall.) Kuntze)

2013 ◽  
Vol 35 (3) ◽  
pp. 284-291
Author(s):  
Maria Angélica Lodo ◽  
Magnólia de Mendonça Lopes ◽  
Bruna Resende Ribeiro Soares ◽  
Roberval Daiton Vieira
Keyword(s):  
Water Content ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Preliminary Information ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
H 41 ◽  
Controlled Deterioration ◽  
Seed Water Content

The efficiency of vigor tests in assessing the physiological potential of seeds depends on their standardization for different species. In this context, the research aimed to study specific methodologies to evaluate the vigor of spinach seeds (Tetragonia tetragonoides). For this purpose, five lots of spinach seed cv. New Zealand were submitted to germination, first count of germination, seedling emergence in the field, accelerated aging (with and without use of saturated solution of NaCl at 41and 45 ºC for 24,48 and 72 hours), controlled deterioration (18,21 and 24% seed water content adjustments for 24 hours at 45 ºC) and electrical conductivity tests with variations inwater volume (25, 50 and 75 mL), seed quantity (25 and 50) and soaking period (1, 2, 4, 8,12, 16 and 24 hours) at 25 ºC. The first count test allowed obtaining preliminary information about seed vigor, and other tests in general showed similarity with seedling emergence in the field. Thus, it was concluded that traditional accelerated aging test 24 h /41 ºC and accelerated aging test with saturated salt solution for 24 h at 41 ºC and 45 ºC, and controlled deterioration test with 21% seed water content / 24 h / 45 ºC were all efficient for evaluating the physiological potential of spinach seeds.

Accelerated Aging Test and Study of Storage Life Prediction of NBR O-Ring

2011 ◽  
Vol 415-417 ◽  
pp. 184-190 ◽  
Author(s):  
Jun Pan ◽  
Shi Wei Xu ◽  
Wen Hua Chen ◽  
Xiao Yun Wang ◽  
Ping Qian ◽  
...  
Keyword(s):  
Accelerated Aging ◽  
Least Square Method ◽  
Storage Conditions ◽  
Storage Life ◽  
Least Square ◽  
Butadiene Rubber ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Servo Mechanism ◽  
Hydraulic Servo

Nitrile Butadiene Rubber (NBR) is a kind of common sealing materials for the electric hydraulic servo mechanism, there exists the aging failure problem in its storage environment, which is the key factor determining the storage life of the electric hydraulic servo mechanism. Through the analysis of aging failure mechanism of the NBR o-ring, the degradation path that varies with the changes of aging time based on compression set was established. And the Arrhenius equation, which is the acceleration equation of the aging reaction velocity varies with the changes of temperature, was established as well. In order to obtain the related parameters of the model, the accelerated aging test was conducted and its data were processed by applying the approximation standards and least square method. Also through the test the prediction of storage life of NBR o-ring under special storage conditions was made, and its predicted results were basically identical with the actual storage life.

scholarly journals Physiological quality of popcorn seeds assessed by the accelerated aging test

2018 ◽  
Vol 40 (4) ◽  
pp. 428-434 ◽  
Author(s):  
Cristiane da Silva Rocha ◽  
Hugo César Rodrigues Moreira Catão ◽  
Franciele Caixeta ◽  
Heloisa Karoline Kavan ◽  
Talis Melo Claudino ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Moisture Content ◽  
Accelerated Aging ◽  
Seed Moisture Content ◽  
Randomized Design ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
Consistent Information

Abstract: Despite the insufficient internal supply of popcorn kernel cultivars, the Brazilian production is continuously increasing. Therefore, searching for tests that offer fast results and reliable information on the physiological potential of the seeds is very important. The objective of this study was to assess the efficiency of the accelerated aging test, by using different times and exposure temperatures, for the evaluation of the physiological quality of popcorn seed lots. Popcorn seeds from three lots of the hybrid AP 8203 were used. For the initial characterization of the lots, the following tests were conducted: seed moisture content, first and final germination count, and field emergence. The accelerated aging test was performed in a 3x4x2 factorial scheme. After aging, the seeds were tested for moisture content, germination, and electrical conductivity. The experiment was carried out in a completely randomized design. The characteristic vigor was affected during aging, as evidenced by the increase in the amount of leachate detected by the electrical conductivity test. Seed lot 3 was most vigorous in the aging test conducted for 48 h at 45 °C. The accelerated aging test at 42 ºC for 48 h provides consistent information to differentiate seed lots of popcorn.

scholarly journals Accelerated Aging for the Evaluation of the Physiological Potential of Eggplant Seeds

2018 ◽  
Vol 10 (8) ◽  
pp. 477
Author(s):  
Cristiane Deuner ◽  
D. B. Rodrigues ◽  
L. V. M. De Tunes ◽  
A. S. Almeida ◽  
A. S. Suñe ◽  
...  
Keyword(s):  
Moisture Content ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Saturated Solution ◽  
Germination Test ◽  
Randomized Design ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Completely Randomized Design ◽  
Different Levels

The use of healthy and vigorous seeds is necessary to ensure adequate plant stands, therefore, vigor tests are used to measure the physiological potential of seeds alongside with the germination test. The objective of this study was to evaluate different procedures for the estimation of the physiological potential of eggplant seeds through the accelerated aging test. Seed lots were tested for moisture content, germination, first count of germination, seedling emergence and speed of emergence index. Then, seeds were subjected to the conventional accelerated aging test, using an unsaturated NaCl solution or a NaCl saturated solution, for 24, 48 and 72 hours at 41 °C, estimating the moisture content after each period of aging. The treatments were allocated in a completely randomized design, with four treatments (seed lots) and four replicates. The use of the saturated solution of NaCl decreases the absorption of water and the rate of deterioration of eggplant seeds during the accelerated aging test, providing more uniform results. The accelerated aging test allows eggplant seed lots from cv. Napoli to be ranked at different levels of vigor and, among the procedures tested, the combinations 41 °C/48 hours and 41 °C/72 hours allowed the proper assessment of the physiological potential of seeds of this cultivar.

Accelerated aging test of hydrogenated nitrile butadiene rubber using the time–temperature–strain superposition principle

RSC Advances ◽  
2015 ◽  
Vol 5 (109) ◽  
pp. 90178-90183 ◽  
Author(s):  
Zhongmeng Zhu ◽  
Chengkai Jiang ◽  
Qian Cheng ◽  
Jianwei Zhang ◽  
Shaoyun Guo ◽  
...  
Keyword(s):  
Fracture Strain ◽  
Superposition Principle ◽  
Accelerated Aging ◽  
Butadiene Rubber ◽  
Test Results ◽  
Short Term ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Temperature Strain

The long-term (~550 days) degradation of fracture strain of HNBR under the reference condition of 60 °C @ zero strain can be predicted using the time–temperature–strain superposition principle with the short-term (<10 days) test results.

scholarly journals Physiological quality of soybean seeds of cultivars submitted to harvesting delay and its association with seedling emergence in the field

2013 ◽  
Vol 35 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Fábio Oliveira Diniz ◽  
Múcio Silva Reis ◽  
Luiz Antônio dos Santos Dias ◽  
Eduardo Fontes Araújo ◽  
Tuneo Sediyama ◽  
...  
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Soybean Seeds ◽  
Test Results ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
The Relationship

With the aim of studying the relationship between the physiological quality of soybean seeds submitted to three harvest times and seedling emergence in the field, seeds of cultivars UFV-16, Splendor, Vencedora, Confiança, UFV-18, UFV-TN 105, Garantia and Celeste were harvested at stages R8, R8+15 and R8+30 days. The following tests were performed: accelerated aging, electrical conductivity, emergence in sand, emergence speed index and seedling emergence in the field. Germination and vigor were reduced in seeds harvested at 30 days after stage R8 in all the tests, except for the accelerated aging test, which showed a decline in vigor seeds harvested with a delay of 15 days. Seeds of cultivars UFV-16, Confiança and Garantia showed lower physiological quality in most tests, while the seeds of cultivar Celeste had higher physiological quality than the others. There was similarity between the test results of seed quality and seedling emergence in the field.

Sign in / Sign up

Export Citation Format

Share Document