scholarly journals Correlation between vigor by accelerated aging at pre-sowing and soybean seedling emergence in the field

2021 ◽  
Vol 42 (2) ◽  
pp. 455-470
Author(s):  
Vanderléia Mathias ◽  
◽  
Cileide Maria Medeiros Coelho ◽  
Keyword(s):  
Exposure Time ◽  
Seedling Emergence ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Growing Seasons ◽  
Accelerated Aging Test ◽  
Physiological Quality ◽  
Field Emergence

Although the accelerated aging test is widely used to determine seed vigor, there are methodological variations in seed exposure time at 41 °C. Therefore, the objective was to indicate the most appropriate seed exposure time to segregate lots that also exhibits a correlation with seedling emergence in the field, and establish vigor levels using the aforementioned test. Soybean seed samples were collected at pre-sowing, representing 100 lots in the 2016/2017 growing season and 125 lots in the 2017/2018 season from different warehouses in 4 regions of Santa Catarina state (SC). Physiological quality was evaluated by germination, accelerated aging (24 and 48 h at 41 °C) and field emergence tests. The results were submitted to descriptive statistical analysis and Pearson’s correlation analysis (p < 0.05). The rank sum index, associated with the Scott-Knott clustering method, was used to classify physiological quality. The average germination percentage was 90 and 91% in the 2016/2017 and 2017/2018 growing seasons, respectively. Vigor obtained an average of 86 (2016/2017) and 85% (2017/2018), when seeds were submitted to accelerated aging for 48 h, and 89% (both seasons) for 24 h. In regard to field emergence, the average was 85 and 80% in the 2016/2017 and 2017/2018 growing seasons, respectively. Considering the 225 lots, the greatest correlation with field emergence was observed in vigor - 48 h (r = 0.71 p < 0.05). Rank sum classification made it possible to establish vigor-based categories, whereby batches with over 85% vigor by 48-h accelerated aging were classified as high vigor, 70 to 84% medium vigor, and under 70% low vigor.

scholarly journals Saturated salt accelerated aging and computerized analysis of seedling images to evaluate soybean seed performance

2014 ◽  
Vol 36 (2) ◽  
pp. 213-221 ◽  
Author(s):  
Juliana Tieme Yagushi ◽  
Denis Santiago Costa ◽  
José de Barros França-Neto
Keyword(s):  
Seed Quality ◽  
Imaging System ◽  
Seedling Emergence ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
Tetrazolium Test

Seed deterioration causes losses to seed companies during the storage. For researches, the challenge has been to develop techniques which improve the seed longevity as well as laboratory analysis methods required for evaluating the evolution of deterioration in storage. This study had the objective of determining the effectiveness of the accelerated aging test with a saturated NaCl solution and Seed Vigor Imaging System (SVIS) analysis in checking soybean seed physiological in comparison with the recommended vigor tests. Soybean seeds from the cultivars BRS 184 and M-Soy 7908 RR were used, each of them were represented by six lots and stored for six months under two environment conditions. Seed physiological quality was checked every two months in storage through germination evaluations, accelerated aging (different methods), tetrazolium test (vigor and viability) seedling emergence, and SVIS analysis. The tetrazolium test is the most advisable method for evaluating soybean seed quality during storage. The results of the saturated salt accelerated aging test with NaCl at 41 ºC for 72 or 96 hours and the SVIS evaluation are also both efficient for estimating the physiological potential of seeds.

scholarly journals Accelerated aging of melon seeds

2003 ◽  
Vol 60 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Salvador Barros Torres ◽  
Julio Marcos Filho
Keyword(s):  
Salt Solution ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Traditional Procedure ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
Melon Seeds

Accelerated aging is one of the most useful tests used for the evaluation of seed vigor but it is seldomly used to test melon (Cucumis melo L.) seeds. The objective this research was to compare different procedures of the accelerated aging test to evaluate the physiological quality of melon seeds and the efficiency of using saturated salt solution for the control of water uptake by seeds. Five seed lots each of the hybrids AF-646 and AF-682 were tested for germination, seedling emergence, traditional accelerated aging (periods 0f 48, 72 and 96 hours, at 38 or 41°C) and salt saturated accelerated aging. The accelerated aging test (traditional procedure and with salt solution) for 72h and 96h, at 38 or 41°C was sensitive to detect differences in the physiological quality of the seeds. It was also observed that the seed water content after salt saturated accelerated aging was lower and more uniform, thus presenting advantagens in relation to the traditional procedure.

scholarly journals Physiological quality of the seeds of common bean cultivars grown in different phosphorus levels and growing seasons

2016 ◽  
Vol 37 (6) ◽  
pp. 3859
Author(s):  
Claudemir Zucareli ◽  
Cristian Rafael Brzezinski ◽  
Flávia Werner ◽  
Julia Abati ◽  
João Nakagawa
Keyword(s):  
Common Bean ◽  
Rainy Season ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Dry Season ◽  
Growing Seasons ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
Phosphorus Levels

The use of appropriate management practices, such as sowing and fertilizing, associated with the use of promising genotypes are strategies for obtaining bean seeds of high quality. The aim of this study was to evaluate the physiological quality of cultivars of common bean seeds produced in two growing seasons under different phosphorus levels. The experimental design was completely randomized in a factorial design of 2 × 2 × 6, with four replications. We evaluated two common bean cultivars (‘IAC Carioca Precoce’ and ‘IAC Carioca Tybatã’), two planting seasons of common beans (rainy season and dry season), and six rates of phosphorus fertilization (0, 30, 60, 90, 120, and 150 kg ha-1 of P2O5) applied to the planting rows, using triple super phosphate as the source of P. Seed quality was evaluated by testing the water content, germination, first account of the germination test, accelerated aging test and the water content after the test, electrical conductivity, and seedling emergence in the field. Data were subjected to analysis of variance and the means of cultivars and growing seasons were compared using Tukey’s test at 5% probability. Regression analysis was performed for phosphorus levels. Seeds of ‘IAC Carioca Precoce’ produced during the rainy season showed higher germination. In the dry season, the highest seedling emergence in the field was recorded for ‘IAC Carioca Tybatã’. Common bean cultivation provided seeds with higher germination and vigor in the dry season than in the rainy season. The accelerated aging test showed that when phosphorus was applied in the planting rows, the vigor of common bean seed was enhanced, with a better response to higher doses when cultivated in the dry season.

scholarly journals Electrical conductivity of the seed soaking solution and soybean seedling emergence

2004 ◽  
Vol 61 (2) ◽  
pp. 164-168 ◽  
Author(s):  
Roberval Daiton Vieira ◽  
Angelo Scappa Neto ◽  
Sonia Regina Mudrovitsch de Bittencourt ◽  
Maristela Panobianco
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Seedling Emergence ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Soybean Seedling ◽  
Seed Soaking ◽  
Laboratory Conditions ◽  
Field And Laboratory Conditions

Vigor of soybean [Glycine max (L.) Merrill] seeds can be evaluated by measuring the electrical conductivity (EC) of the seed soaking solution, which has shown a satisfactory relationship with field seedling emergence, but has not had aproper definition of range yet. This work studies the relationship between EC and soybean seedling emergence both in the field and laboratory conditions, using twenty two seed lots. Seed water content, standard germination and vigor (EC, accelerated aging and cold tests) were evaluated under laboratory conditions using -0.03; -0.20; -0.40 and -0.60 MPa matric potentials, and field seedling emergence was also observed. There was direct relationship between EC and field seedling emergence (FE). Under laboratory conditions, a decreasing relationship was found between EC and FE as water content in the substrate decreased. Relationships between these two parameters were also found when -0.03; -0.20 and -0.40 MPa matric potentials were used. EC tests can be used successfully to evaluate soybean seed vigor and identify lots with higher or lower field emergence potential.

scholarly journals Seedling imaging analysis and traditional tests to assess okra seed vigor

2013 ◽  
Vol 35 (4) ◽  
pp. 443-448 ◽  
Author(s):  
Ana Lúcia Pereira Kikuti ◽  
Júlio Marcos-Filho
Keyword(s):  
Imaging System ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Control Programs ◽  
Seed Industry ◽  
Accelerated Aging Test ◽  
Vigor Index ◽  
Seedling Length ◽  
Germination Speed

Seed vigor testing is an important component of quality control programs adopted by seed industry. The software Seed Vigor Imaging System (SVIS) has been successfully used for seed vigor assessment in different species. The objective of this research was to verify the SVIS efficiency to assess okra seed vigor in comparison to other vigor tests used for this species. Five seed lots of 'Clemson Americano' and four of 'Santa Cruz' were submitted to germination (speed and percentage), cold germination (speed and percentage), traditional and saturated salt accelerated aging (41 ºC/72 and 96 h) and seedling emergence tests during 12 months storage. Vigor index, uniformity of growth and seedling length were determined by the software Seed Vigor Imaging System (SVIS). Results showed that the vigor index and seedling length determined by the SVIS analyses are efficient to determine okra seed vigor as well as the accelerated aging test (41 ºC/72 h).

scholarly journals Effect of seed vigor and sowing densities on the yield and physiological potential of wheat seeds

2021 ◽  
Vol 43 ◽  
Author(s):  
Carolina Pereira Cardoso ◽  
José Henrique Bizzarri Bazzo ◽  
Jéssica de Lucena Marinho ◽  
Claudemir Zucareli
Keyword(s):  
Seed Yield ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Wheat Crop ◽  
Seedling Length ◽  
Physiological Quality ◽  
Initial Seed ◽  
Wheat Seeds

Abstract: Initial seed vigor and sowing density interact in establishment of plants in the field, and can thus affect expression of the plasticity of the wheat crop and the yield and physiological quality of the seeds produced. The aim of this study was to evaluate the effect of seed vigor levels in combination with sowing densities on the yield and physiological potential of wheat seeds. The cultivars BRS Gralha-Azul and BRS Sabiá were used in a randomized block experimental design in a 2 × 4 factorial arrangement, with four replications. The treatments consisted of seeds of high and low vigor and four sowing densities (150, 250, 350, and 450 seeds.m-2). The following evaluations were made: seed yield, germination, first germination count, seedling length, seedling dry matter, accelerated aging, emergence speed index, and seedling emergence in sand. An increase in sowing density favors the seed yield of both cultivars; however, it reduces the vigor of the seeds produced by the cultivar BRS Gralha-Azul, especially of the seeds produced by plants originating from high vigor seeds. For the cultivar BRS Sabiá, an increase in sowing density decreases the germination performance of seeds produced by plants originating from low vigor seeds.

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.

scholarly journals Accelerated aging and seedling field emergence in soybean

2004 ◽  
Vol 61 (5) ◽  
pp. 476-480 ◽  
Author(s):  
Reynaldo Melo Torres ◽  
Roberval Daiton Vieira ◽  
Maristela Panobianco
Keyword(s):  
Environmental Conditions ◽  
Close Association ◽  
Accelerated Aging ◽  
Field Performance ◽  
Accurate Estimate ◽  
Seed Vigor ◽  
Soybean Seedlings ◽  
Physiological Quality ◽  
Glycine Max L ◽  
Field Emergence

Information regarding the relationship between laboratory seed vigor testing and seedling field emergence is very important to estimate seed performance after sowing and help producers adopt the best procedures to improve stand establishment. The objective of the present study was to relate accelerated aging (AA) test results to soybean [Glycine max (L.) Merrill] seedling field emergence results based on data obtained over three agricultural years. The following evaluations were made: seed water content, standard germination, accelerated aging, electrical conductivity, and seedling field emergence. There was a close association between planting environmental conditions, seed physiological quality and seedling field emergence. The most accurate predictions were obtained for AA values > 90%, when field emergence was higher than 80% (r² = 0.90). Based on the results it was concluded that the AA test provided an accurate estimate of field emergence of soybean seedlings. However, as seedbed environmental conditions became less favorable, the ability of the AA test to estimate field performance significantly decreased.

scholarly journals Accelerated aging as vigor test for sunn hemp seeds

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Clíssia Barboza da Silva ◽  
Rafael Marani Barbosa ◽  
Roberval Daiton Vieira
Keyword(s):  
Sodium Chloride ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Seed Vigor ◽  
Saturated Solution ◽  
Crotalaria Juncea ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Sunn Hemp ◽  
Germination Vigor

ABSTRACT: This study aimed to determine the most appropriate method to assess the sunn hemp ( Crotalaria juncea L.) seed vigor in the accelerated aging test. Five seed lots from harvest 2007/2008 were evaluated for germination, vigor and seedling emergence in the field. Accelerated aging test was performed at 41°C during 48, 72 and 96 hours, with and without sodium chloride saturated solution. Then, the promising procedure was also performed for 2008/2009 and 2009/2010 harvests. In the traditional accelerated aging test, the no-uniform water acquisition by the seeds adversely affected results. Accelerated aging test with sodium chloride saturated solution is the most appropriate method to evaluate the physiological potential of sunn hemp seeds, and the combination of 41°C and 96 hours is efficient for separating of seed lots in different vigor levels.

Reduction of the Forage Seeds Physiological Quality by the Contact with Fertilizer in the Crop-Livestock Integration

2019 ◽  
pp. 1-11
Author(s):  
Anne Caroline Dallabrida Avelino ◽  
Dayana Aparecida De Faria ◽  
Carlos Eduardo Avelino Cabral ◽  
Joadil Gonçalves De Abreu ◽  
Elisangela Clarete Camili ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Contact Time ◽  
Accelerated Aging ◽  
Germination Percentage ◽  
Randomized Design ◽  
Accelerated Aging Test ◽  
Aging Test ◽  
Physiological Quality ◽  
Completely Randomized Design ◽  
Seeds Germination

The aim of this study was to evaluate the effects of Brachiaria seed contact time with 05-25-15 fertilizer (N-P2O5-K2O) on the seed’s physiological quality. The experimental design was a completely randomized design with four replicates. Treatments were arranged in a 5x4 factorial, being: five seeds contact times with fertilizer (0, 24, 48, 72 and 96 hours); four forages: Marandu palisadegrass, Piatã palisadegrass, Xaraés palisadegrass and Ruziziensis grass. The performed tests were: water content, germination (first count and germination percentage), tetrazolium (viability), electrical conductivity, accelerated aging, sand emergency and emergence speed index. Contact time of 05-25-15 fertilizer with Brachiaria seeds reduces linearly: Germination, emergence and emergence speed index of Brachiaria seeds; Piatã and Xaraés palisadegrass seeds viability; vigor (electrical conductivity), except in Ruziziensis grass seeds; and seeds germination of Piatã palisadegrass submitted to accelerated aging test (vigor). Piatã palisadegrass is the least recommended, among the analyzed grasses, for intercropping in simultaneous sowing.

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