Slurry Composition and Physiological Quality of Treated Soybean Seeds Over Storage

Industrial seed treatment assures uniform coverage of seeds with insecticides, fungicides, micronutrients and bioestimulant at precise dose, however often resulting in higher slurry volume. Furthermore, seeds are coated long periods of time prior sowing and may influence germination and vigor. Thus, the aim of this work was to evaluate the influence of seven industrial seed treatments and their respective slurry volumes on the physiological potential of soybean seeds at 0, 15, 30, 45, 60 and 90 days of storage. In each storage period, the variables germination, accelerated aging test and emergency speed index were evaluated and studied in the repeated measures in time model. The products used were: fungicide (thiabendazole, fludioxonil and mefenoxam), insecticide (thiametoxam), insecticide/nematicide (abamectin), micronutrients (cobalt and molybdenum), bioregulator, drying powder and polymer. High volumes of seed-coating mixtures reduce the physiological quality of soybean seeds over storage. However, the slurry composition also influenced on the maintenance of the seed germination and vigor throughout the storage.

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

Journal of Seed Science ◽

10.1590/s2317-15372013000200002 ◽

2013 ◽

Vol 35 (2) ◽

pp. 147-152 ◽

Cited By ~ 12

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.

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Genetic diversity for physiological quality of seeds from corn (Zea mays L.) intervarietal crossbreeds

Journal of Seed Science ◽

10.1590/s2317-15372013000400006 ◽

2013 ◽

Vol 35 (4) ◽

pp. 449-456 ◽

Cited By ~ 4

Author(s):

Daniele Nerling ◽

Cileide Maria Medeiros Coelho ◽

Rubens Onofre Nodari

Keyword(s):

Genetic Diversity ◽

Zea Mays L ◽

Accelerated Aging ◽

Genetic Contribution ◽

Percentage Germination ◽

Canonical Variables ◽

Accelerated Aging Test ◽

Aging Test ◽

Physiological Quality

The physiological quality is based on the genotype and may be accompanied since the first stages of selection through the study of genetic diversity. The purpose of this study was to evaluate the parental genetic contribution in the seed physiological quality in corn intervarietal crossbreeds. The intervarietal crossbreeds were performed using landraces genotypes, open pollinated varieties and commercial hybrids. The seeds obtained from the crossbreed, their equivalents and parentals were evaluated regarding their water percentage, germination, germination speed rate, accelerated aging, field emergence and electrical conductivity. The seeds obtained in the crossbreed are viable and vivid with heterosis when compared with the parentals. The accelerated aging test was more effective for selecting the strongest genotypes. The canonical variables were useful to group the genotypes that presented similar physiological characteristics. The genotypes MPA 01 x Pixurum 05, MPA 01 x AS1565, MPA 01 x SJC5886, SJC5886 x Pixurum 05 and Fundacep 35 x SCS 154 Fortuna were the best crossbreeds regarding the production of better physiological quality seeds.

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Physiological quality of soybean seeds stored after industrial treatments with different chemicals

Research Society and Development ◽

10.33448/rsd-v10i2.12279 ◽

2021 ◽

Vol 10 (2) ◽

pp. e6310212279

Author(s):

Renata Cristiane Pereira ◽

Lucas Caiubi Pereira ◽

Alessandro Lucca Braccini ◽

Larissa Vinis Correia ◽

Murilo Fuentes Pelloso ◽

...

Keyword(s):

Block Design ◽

Accelerated Aging ◽

Storage Period ◽

Original Data ◽

Soybean Seeds ◽

Randomized Block Design ◽

Seedling Length ◽

Physiological Quality ◽

Main Components

This study aimed to relate the smallest set of variables that compose the quality of soybean seeds lot under study, as well as to evaluate the influence of four industrial seed treatments and their respective slurry volumes on the physiological potential. The experiment was carried out in a completely randomized block design with 4 replicates and 24 treatments. The chemical treatments were: control (T1), micronutrient + polymer + drying powder (T2), bioregulator + polymer + drying powder (T3) and micronutrient + bioregulator + polymer + drying powder (T4). The seeds were stored for periods of 0, 15, 30, 45, 60 and 90 days and were subsequently evaluated for their physiological potential. In each storage period, the variable germination, first count, accelerated aging, emergence speed index, final emergence in the sand substrate, aerial part length, root length and total seedling length were evaluated. The main components of the standard germination test and first count were the ones that most contributed to explaining the variability of the original data. Increasing the volume of the slurry in the industrial seed treatment reduces the physiological quality of soybean seeds during storage.

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Tests for evaluating the physiological quality of pitaya seeds

Semina Ciências Agrárias ◽

10.5433/1679-0359.2015v36n6sup2p4047 ◽

2015 ◽

Vol 36 (6Supl2) ◽

pp. 4047

Author(s):

Thiago Alberto Ortiz ◽

Aline Moritz ◽

Lúcia Sadayo Assari Takahashi ◽

Mariana Ragassi Urbano

Keyword(s):

Electrical Conductivity ◽

Pearson Correlation ◽

Accelerated Aging ◽

Seed Vigor ◽

Water Volume ◽

Germination Test ◽

Accelerated Aging Test ◽

Aging Test ◽

Physiological Quality

Germination test is used to assess the physiological quality of seeds; however, since it is carried out under ideal conditions, this test has not been shown sufficient for this purpose. Instead, it is possible to use vigor tests, although the lack of standardized methodologies has reduced their applicability and reproducibility. Thus, this study aimed to develop methodologies for conducting tests of germination, accelerated aging, and electrical conductivity for the evaluation of the physiological quality of pitaya seeds. For this purpose, seeds from ripe Hylocereus undatus fruits were used. A completely randomized experimental design was used with four replications. The physiological quality of the seeds was assessed using germination, accelerated aging, and electrical conductivity tests, and the speed of germination index (SGI) and mean germination time (MGT) were determined for both the germination test and accelerated aging test. For the statistical analysis, we performed regression model adjustments and calculated the Pearson correlation coefficient (p < 0.05). The germination test for H. undatus seeds can be performed at 25 °C, with the aim of reaching the highest SGI and lowest MGT values. The accelerated aging test can be conducted at 43 °C for 48 h, because combining these factors favors the expression of seed vigor, allowing seeds to achieve the maximum SGI and minimum MGT, while reducing the time of the assay. The electrical conductivity test can be performed using 25 seeds at a temperature of 30 °C and a water volume of 10 mL, since under these conditions there is less interference from external factors on the leachate content of the solution.

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QUALIDADE FISIOLÓGICA DE SEMENTES DE SOJA SUBMETIDAS À DESSECAÇÃO EM PRÉ-COLHEITA

Colloquium Agrariae ◽

10.5747/ca.2018.v14.n4.a254 ◽

2018 ◽

Vol 14 (4) ◽

pp. 112-120

Author(s):

Renan Canzi Comin ◽

Geri Eduardo Meneghello ◽

Jader Job Franco ◽

Alexandre Moscarelli Levien ◽

Kassiana Kehl ◽

...

Keyword(s):

Seed Quality ◽

Accelerated Aging ◽

Glufosinate Ammonium ◽

Accelerated Aging Test ◽

Aging Test ◽

Physiological Quality ◽

Important Idea ◽

The City ◽

Technical Recommendations

The use of high quality soybean seeds (Glycine maxL.) is one of the most important aspects to obtain satisfactory productivity indexes. The desiccation practice is an important idea of the producers to anticipate theharvest and to minimize the rapiddeterioration of seed quality in the field. In this context, the objective of this work was to evaluate the effect of the use of desiccants applied in R7stageon the physiological quality of soybean seeds.The experiment was conducted in experimental area, located in the city of Passo Fundo, Rio Grande do Sul. Four soybean cultivars (FPS Jupiter RR, FPS Paranapanema RR, BRS Tordilha RR and FPS Urano RR) were planted under experimental design, managed according to technical recommendations for the crop.Upon reaching the R7 stage, different desiccation treatments (without desiccation, paraquat, diquat and glufosinate ammonium) were applied to the subplot.The seeds were harvested with a plot harvester and the weight of one thousand seeds, germination test and accelerated aging test were evaluated, being the last two evaluated at 30 and 180 days after harvest. The pre-harvest desiccation at the R7 stage of soybean cultivation did not negatively affect the physiological quality of the seeds and, generally way, for the cultivars FPS Jupiter RR and FPS Urano RR, it was possible to obtain more vigorous seeds at 30 DAC. Under the conditions under which the experiment was conducted, the diquat, paraquat and glufosinate ammonium herbicides can be used for pre-harvest desiccation in the seed production fields.

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Effect of the Storage Period and Fungicide Treatment on the Physiological and Sanitary Quality of Soybean Seeds

Journal of Experimental Agriculture International ◽

10.9734/jeai/2019/v37i530280 ◽

2019 ◽

pp. 1-13

Author(s):

Thalles Alexandre Xavier Pereira ◽

Pedro Silvério Xavier Pereira ◽

Dejânia Vieira de Araújo ◽

Dryelle Sifuentes Pallaoro ◽

Aloisio Bianchini ◽

...

Keyword(s):

Dry Matter ◽

Accelerated Aging ◽

Storage Period ◽

Soybean Seeds ◽

Methyl Thiophanate ◽

Health Quality ◽

Physiological Quality ◽

The Difference ◽

Seedling Germination

This study evaluated the effect of storage period on the physiological and health quality of soybean seeds. The experiment was arranged in a factorial scheme (4 x 2 x 2) with four periods of storage (0, 2, 4 and 6 months), two soybean cultivars (‘BRS Pintado’ and ‘MSOY 8866’) and treated and untreated seeds with the formulated mixture of active ingredients pyraclostrobine (25 g i.a L-1) + Methyl-Thiophanate (225 g i.a L-1) + fipronil (250 g i.a L-1) in a 0,1 L.ha-1 dosage of the commercial product. Concerning health, there was a reduction of Aspergillus spp., Cercospora kikuchii, Colletotrichum dematium var. truncata and Fusarium spp fungus when periods of storage were increased independently if storage interactions occurred due to cultivar, treatment and/or all analyzed factors. cv. ‘BRS Pintado’ stood out by presenting lower results on the occurrence of fungi. The isolated cultivar factor presented a significant result concerning the physiological quality and c.v. ‘BRS Pintado’ showed better results in the variables: germination of seeds from the speed aging test, germination, shoot lenght from the speed emergence test, and both shoot dry matter and root dry matter of germination. There was an interaction for the speed emergence index variable between storage versus cultivar, in which cv. ‘BRS Pintado’ achieved better average results in all periods of storage. The storage factor alone was significant for shoot length of plants from the speed emergence index, the shoot plant dry matter from the emergency speed index, root dry matter of seedling germination and germination of seeds subjected to accelerated aging. The isolated treatment factor was significant in the germination variable and the untreated seeds showed better results in relation to the treated ones. However, the difference of these values would not be significant at the field. Treated seeds showed better results compared to untreated ones in most of the analyzed variables and their association with seeds storage did not affect the physiological quality evaluation during six months of evaluation, enabling the maintenance of the health quality of seeds.

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Physiological quality and seed storage potential of four soybean cultivars

Research Society and Development ◽

10.33448/rsd-v10i4.13635 ◽

2021 ◽

Vol 10 (4) ◽

pp. e7910413635

Author(s):

Larissa Aparecida Giasson ◽

Adriana Paula D’Agostini Contreiras-Rodrigues ◽

Daniela Aparecida Dalla-Costa ◽

Betania Brum de Bortolli ◽

Aline Ferreira Coelho ◽

...

Keyword(s):

Repeated Measures ◽

Storage Time ◽

Accelerated Aging ◽

Seed Storage ◽

Soybean Seeds ◽

Soybean Cultivars ◽

Repeated Measures Analysis ◽

Germination Speed ◽

Physiological Quality

The objective of this study was to evaluate physiological seeds quality of four soybean cultivars during storage, under controlled and uncontrolled conditions. Seeds of Brasmax Lança IPRO, Brasmax Raio IPRO (está diferente do Material e Médtodos), Pioneer 95y52 and TMG 7062 IPRO cultivars were stored in controlled (20 ± 1.2 °C) and uncontrolled (producer's warehouse) environments and the following traits were assessed: percentage of germination (GERM), germination speed index (GSI), germination speed (GS) and accelerated aging (AA) at 0, 60, 120 and 180 days of storage. Covariance matrices structure of storage time was tested through repeated measures analysis, adopting a bifactorial model. Data were submitted to ANOVA (α=5%) and when the means presented significant differences, regression analysis and Scott-Knott test (α=5%) were performed. Differences in soybean seeds physiological quality are not related to storage environment. Lança cultivar was the most tolerant to storage, while Ray and TMG 7062 cultivars were more sensitive.

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Physiological quality of popcorn seeds assessed by the accelerated aging test

Journal of Seed Science ◽

10.1590/2317-1545v40n4191101 ◽

2018 ◽

Vol 40 (4) ◽

pp. 428-434 ◽

Cited By ~ 2

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.

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Vigor testings for evaluating the physiological quality of chia seeds

Semina Ciências Agrárias ◽

10.5433/1679-0359.2019v40n6supl2p2891 ◽

2019 ◽

Vol 40 (6Supl2) ◽

pp. 2891

Author(s):

Fernanda Brito Cardoso ◽

Carlos Henrique Queiroz Rego ◽

Izabela Cristina de Oliveira ◽

Alan Mario Zuffo ◽

Ana Carina da Silva Cândido ◽

...

Keyword(s):

Electrical Conductivity ◽

Traditional Method ◽

Seedling Emergence ◽

Accelerated Aging ◽

Distilled Water ◽

Nacl Solution ◽

Accelerated Aging Test ◽

Aging Test ◽

Physiological Quality

Chia (Salvia hispanica L.) is a plant native to central and western Mexico and northern Guatemala belonging to the Lamiaceae family, well known for its seeds containing antioxidants, dietary fibers, and ?-linolenic acid, which helps to prevent different diseases, such as diabetes, obesity, cancer and Alzheimer. In Brazil, there is not much information about the crop, mainly about the physiological quality of its seeds. Therefore, the objective was to establish vigor testing methods to evaluate the physiological quality of chia seeds. Five seed lots were used, in which germination tests, seedling emergence, emergence velocity index and variations in the electrical conductivity test were carried out. The volume of distilled water was 25 and 50 mL, the number of seeds was 50 and 100, the temperature was 20, 25 and 30 °C, the soaking period was 1, 2, 4, 6, 12, 18 and 24 hours and variations in there was accelerated aging test by the traditional method and saturated NaCl solution, being periods of aging as 24, 48, 72 and 96 hours and temperatures of 38, 41 and 44 °C. It is concluded that both the electrical conductivity test and the accelerated aging test are efficient in evaluating the physiological quality of chia seeds. The electrical conductivity test must be performed with 100 seeds in 50 mL of distilled water, for four hours soaking at 25 or 30 °C; and the accelerated aging test should be performed at 44 °C for 24 hours by the traditional method or 41 °C for 24 hours using saturated NaCl solution.

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Tests for evaluating the physiological quality of pitaya seeds

Semina Ciências Agrárias ◽

10.5433/1679-0359.2015v36n6supl2p4047 ◽

2015 ◽

Vol 36 (6Supl2) ◽

pp. 4047

Author(s):

Thiago Alberto Ortiz ◽

Aline Moritz ◽

Lúcia Sadayo Assari Takahashi ◽

Mariana Ragassi Urbano

Keyword(s):

Electrical Conductivity ◽

Pearson Correlation ◽

Accelerated Aging ◽

Seed Vigor ◽

Water Volume ◽

Germination Test ◽

Accelerated Aging Test ◽

Aging Test ◽

Physiological Quality

Germination test is used to assess the physiological quality of seeds; however, since it is carried out under ideal conditions, this test has not been shown sufficient for this purpose. Instead, it is possible to use vigor tests, although the lack of standardized methodologies has reduced their applicability and reproducibility. Thus, this study aimed to develop methodologies for conducting tests of germination, accelerated aging, and electrical conductivity for the evaluation of the physiological quality of pitaya seeds. For this purpose, seeds from ripe Hylocereus undatus fruits were used. A completely randomized experimental design was used with four replications. The physiological quality of the seeds was assessed using germination, accelerated aging, and electrical conductivity tests, and the speed of germination index (SGI) and mean germination time (MGT) were determined for both the germination test and accelerated aging test. For the statistical analysis, we performed regression model adjustments and calculated the Pearson correlation coefficient (p < 0.05). The germination test for H. undatus seeds can be performed at 25 °C, with the aim of reaching the highest SGI and lowest MGT values. The accelerated aging test can be conducted at 43 °C for 48 h, because combining these factors favors the expression of seed vigor, allowing seeds to achieve the maximum SGI and minimum MGT, while reducing the time of the assay. The electrical conductivity test can be performed using 25 seeds at a temperature of 30 °C and a water volume of 10 mL, since under these conditions there is less interference from external factors on the leachate content of the solution.

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