scholarly journals Agrochemicals and storage times on soybean seed vigor

2017 ◽  
Vol 52 (2) ◽  
pp. 129-132 ◽  
Author(s):  
Wilian Vinicius Bortoletto ◽  
Willian Rodrigues Macedo ◽  
Thalyta Coelho de Oliveira ◽  
Daniela Silva Souza
Keyword(s):  
Seed Treatment ◽  
Storage Time ◽  
Germination Rate ◽  
Soybean Seed ◽  
Seed Vigor ◽  
Soybean Seeds ◽  
Fresh Matter ◽  
Optimal Period ◽  
Storage Times ◽  
And Storage

Abstract: The objective of this work was to investigate the potential physiological damage of the treatment of '97Y07RR' soybean seeds with different pesticides at different storage times, in order to define the optimal period of sowing. The germination rate, the germination speed index, and shoot fresh matter were evaluated. Thiamethoxam did not cause losses in seed vigor with increasing storage time; however, the other agrochemicals caused significant losses. Seed treatment should be performed up to 90 days before sowing.

scholarly journals High gamma irradiation doses and long storage times reduce soybean seed quality

2016 ◽  
Vol 37 (3) ◽  
pp. 1219
Author(s):  
Danúbia Aparecida Costa Nobre ◽  
Carlos Sigueyuki Sediyama ◽  
Valter Arthur ◽  
Newton Deniz Piovesan ◽  
Alisson Santos Lopes da Silva
Keyword(s):  
Gamma Irradiation ◽  
Seed Quality ◽  
Germination Rate ◽  
Soybean Seed ◽  
Response Surfaces ◽  
Seed Vigor ◽  
Production Cycle ◽  
High Gamma ◽  
Storage Times ◽  
Long Storage

High quality seeds are required for soybean production. This study evaluated the effect of gamma irradiation and storage time on seed quality in soybean lines VX04-6828 and VX04-5692. Seeds were gamma irradiated (60Co) with 0, 50, 150, and 250 Gy. After the first seed production cycle (M1), the harvested seeds were stored in the laboratory for 0, 2, 4, and 6 months. Moisture content, seed quality (germination rate, dead seeds, and normal and abnormal seedlings), and seed vigor (first germination count, germination index, and seedling length) were determined. Data were submitted to analysis of variance for each soybean line using a 4 x 4 factorial design (four storage times x four gamma irradiation doses). Response surfaces were constructed based on the F test significance (p ? 0.05). VX04-5692 seeds were more sensitive to gamma radiation than were VX04-6828 seeds. Soybean seed quality was highest in M2 seeds derived from seeds irradiated with less than 100 Gy and stored for up to two months. High gamma irradiation doses and long storage times reduced soybean seed quality.

scholarly journals Storage of Soybean Seeds and Addition of Insecticide and Micronutrients

2018 ◽  
Vol 11 (1) ◽  
pp. 553
Author(s):  
Gustavo H. Demari ◽  
Vinícius J. Szareski ◽  
Ivan R. Carvalho ◽  
Tuane A. da Silva ◽  
Vânia M. Gehling ◽  
...  
Keyword(s):  
Significant Interaction ◽  
Seed Treatment ◽  
Primary Root ◽  
Dry Mass ◽  
Shoot Length ◽  
Soybean Seeds ◽  
Seed Treatments ◽  
Storage Times ◽  
And Storage ◽  
Primary Root Length

The objective of this work was to evaluate the effects on the physiological attributes of soybean seeds submitted to the seed treatment with addition of insecticide, polymers and micronutrients throughout the storage. The experimental design was completely randomized in a factorial scheme, with four seed treatments per two seasons of storage of the seeds. The analysis of variance revealed a significant interaction among seed treatments and storage times for both cultivars at 5% of probability, referring to the characteristics of shoot length (SL), primary root length (RL), shoot dry mass (SDM) and dry mass of the primary root (RDM) for the cultivar Fundacep 37 RR. Addition of seed treatments influences the physiological performance of seedlings originated from soybean seeds stored for 240 days. The shoot and primary root lenghts, and shoot dry mass express the isoenzyme esterase through the aerial part and primary root of the seedling, the malate dehydrogenase is expressed in the primary root while in the peroxidase it is evident in the shoot of the seedlings.

scholarly journals Physiological quality of soybean seeds grown under different low altitude field environments and storage time

2021 ◽  
Vol 67 (No. 2) ◽  
pp. 92-98
Author(s):  
Kevein Ruas Oliveira ◽  
Fellipe Ramos Sampaio ◽  
Giovano Souza Siqueira ◽  
Ícaro Monteiro Galvão ◽  
Sarita Jane Bennett ◽  
...  
Keyword(s):  
Storage Time ◽  
Soybean Seed ◽  
Storage Period ◽  
Soybean Seeds ◽  
Seed Moisture Content ◽  
Before And After ◽  
Physiological Quality ◽  
Low Altitude ◽  
And Storage

The use of high-quality seeds is essential to maintain high rates of production and productivity. The physiological quality of seeds obtained in the field is directly correlated to storage conditions and storage time. This study aimed to evaluate the physiological quality of soybean seeds in relation to different field environments (seed lots) and storage time. Commercial lots of seeds of the soybean cultivar M8349 IPRO were stored for three and six months. Seed moisture content was determined before and after accelerated aging, along with seed germination percentage and vigour evaluations performed before and after each storage period. The experiment was carried out as a completely randomised factorial design (10 × 3): with ten seed lots and three storage periods. The data were analysed by ANOVA, and the means of four independent replicates for each parameter evaluated were compared using the Scott-Knott test at 5% probability (P ≤ 0.05). Our results revealed that the low altitude regions where the seed samples were collected are suitable for soybean seed production with high physiological quality. Seed storage for six months does not cause a significant reduction in subsequent soybean seed field performance.  

scholarly journals Temperature during soybean seed storage and the amount of electrolytes of soaked seeds solution

2008 ◽  
Vol 65 (5) ◽  
pp. 496-501 ◽  
Author(s):  
Roberval Daiton Vieira ◽  
Dennis Merlin TeKrony ◽  
Dennis Bruce Egli ◽  
William Patrick Bruenning ◽  
Maristela Panobianco
Keyword(s):  
Electrical Conductivity ◽  
Storage Temperature ◽  
Soybean Seed ◽  
Storage Period ◽  
Seed Storage ◽  
Seed Vigor ◽  
Soybean Seeds ◽  
Glycine Max L ◽  
Pea Seeds ◽  
And Storage

The electrical conductivity test measures the electrolytes that leach out of seeds when they are immersed in water and this leakage is an indication of seed vigor. The level of standardization reached by the procedures of this test is such that the test is recommended for pea seeds and suggested for other large seeded legumes, including soybean [Glycine max (L.) Merrill]. This study was conducted to contribute to the standardization of this test for soybean seeds by verifying whether the seed storage temperature influences the composition of the leachate from soaked seeds solution. Two soybean seed lots of distinct physiological potential were stored in moisture-proof containers either at constant temperatures of 10ºC and 20ºC or at the temperature of 20ºC during the first seven months of storage followed by a change to 10ºC for the rest of the storage time (nine months). The chemical composition of the soaked water was evaluated every three months from January to October 1998. The highest amount of leakage was observed for potassium, followed by calcium and magnesium, iron and sodium regardless of temperature and storage period. The amount of electrolytes in the soaked water increased as the period of time and the temperature of storage increased. On the other hand the amount of leakage decrease along the time for those seeds stored at 10ºC or transferred from the temperature of 20 to that of 10ºC. The temperature at which soybean seeds remain during storage may affect the amount of electrolytes in the soaked water and consequently the results of the electrical conductivity test.

scholarly journals Karakteristik Fisikokimia dan Aktifitas Antioksidan Daging Itik yang Dilapisi Ekstrak Propolis Selama Penyimpanan Suhu Ruang

2021 ◽  
Vol 9 (3) ◽  
pp. 151-157
Author(s):  
A. Apriantini ◽  
S. Adinata ◽  
Y. C. Endrawati
Keyword(s):  
Shelf Life ◽  
Storage Time ◽  
Ph Value ◽  
Edible Coating ◽  
Cooking Loss ◽  
Propolis Extract ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Storage Times ◽  
And Storage

Duck meat is a perishable food that has a short shelf-life. Therefore, packaging is needed to be used tomaintain duck meat quality during storage, one of the ways to extend shelf-life of duck meat is usingpropolis extract as edible coating which is contained antioxidant substances which can be used to extendduring storage. The aim of this research was to analyze the effect of propolis extract as an edible coatingmaterial on duck meat to maintain the quality and extend shelf-life of duck meat at room temperature.The research was used a completely randomized design (CRD) factorial 4x3 with 3 replications,consisting of 4 propolis concentrations (0.0%, 0.5%, 1.0%, 1.5%) and 3 storage times (0 hours, 6 hoursand 24 hours). Duck meats coated with propolis extracts had a significant effect on the water content andantioxidant activity of duck meat (P < 0.05). The storage time had a significant effect on the pH valueand the cooking loss of duck meat (P <0.05). The addition of propolis extract and storage time had asignificant effect on the pH value, cooking loss and antioxidant activity of duck meat (P <0.05).

scholarly journals Effect of storage time and composite thickness on Degree of Conversion of Bulk-fill and universal composites using FTIR method

2020 ◽  
Vol 23 (2) ◽  
Author(s):  
Farnaz Farahat ◽  
Abdolrahim Davari ◽  
Marzieh Fadakarfard
Keyword(s):  
Storage Time ◽  
T Test ◽  
Degree Of Conversion ◽  
Dental Composite ◽  
P Value ◽  
Clinical Procedures ◽  
Post Hoc ◽  
Storage Times ◽  
And Storage

Objective: Degree of Conversion (DC) of Resin-Based composites (RBCs) is a concern and is affected by different factors. This study was conducted to evaluate the effect of different thicknesses and storage times on DC of bulk-fill and universal RBCs using the FTIR method. Material and methods: For each of dental composite (Tetric N- Ceram Bulk Fill and Tetric N Ceram), 28 samples were prepared (14 samples with 2 mm height and 14 samples with 4 mm height). One and seven days (1d and 7d) after storage in an incubator at 37 ˚C, DC was measured and recorded using a FTIR device. Data were analyzed using t-test and Three-Way ANOVA and Tukey Post-Hoc Test. P < 0.05 was considered statistically significant. Results: DC of Bulk-fill composite is greater than universal composite. DC at 2 mm thickness is more than 4 mm. Unlike universal composite, 7d DC of Bulk-fill composite is greater than 1d. Of course, none of these differences are statistically significant (P-value > 0.05). Conclusions: Considering the limitation of this study, since no difference was found between DC of 1d and 7d, 1d DC is sufficient for clinical procedures, such as polishing, and the laboratory tests.KEYWORDSBulk-fill composites; Degree of Conversion; FTIR.

scholarly journals Electrical conductivity test in the evaluation of the physiological potential of treated and stored soybean seeds

2021 ◽  
Vol 42 (6) ◽  
pp. 3135-3148
Author(s):  
Ana Paula Silva Couto ◽  
◽  
Cristian Rafael Brzezinski ◽  
Julia Abati ◽  
Ronan Carlos Colombo ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seed Treatment ◽  
Seed Quality ◽  
Soybean Seed ◽  
Accelerated Aging ◽  
Control Treatment ◽  
Soybean Seeds ◽  
Seed Treatments ◽  
Chemical Treatments ◽  
Soybean Cultivars

Soybean seed treatment contributes to the maintenance of seed quality, but the effect of commercial formulations and chemical products on the effectiveness of the electrical conductivity test based on electrolyte leaching has been frequently questioned. This study aimed to verify the interference of the chemical seed treatment of two soybean cultivars on the effectiveness of the electrical conductivity test in evaluating the vigor of freshly treated and stored seeds. The experimental design was completely randomized, consisting of seven seed treatments and two evaluation periods (0 and 60 days after storage), with four replications. The used seed treatments consisted of 1) fipronil + pyraclostrobin + thiophanate-methyl, 2) imidacloprid + thiodicarb + carbendazim + thiram, 3) abamectin + thiamethoxan + fludioxonil + mefenoxam + thiabendazole, 4) carbendazim + thiram, 5) fludioxonil + mefenoxam + thiabendazole, 6) carboxin + thiram, and 7) control (no treatment). The cultivars were BRS 360 RR and BRS 284, which were analyzed separately. Germination, accelerated aging, emergence, and electrical conductivity tests were carried out. No differences were detected between the control and chemical treatments performed on seeds of the two freshly treated soybean cultivars regarding germination, accelerated aging, and emergence tests. The germination test stood out after storage with the cultivar BRS 360 RR, showing the maintenance of germination potential for seeds treated with carbendazim + thiram and the control treatment. Therefore, the chemical treatment of soybean seeds interferes with the result of the electrical conductivity test. The electrical conductivity test is effective in segregating seed lots in terms of vigor level. The electrical conductivity test correlates with the other vigor tests used to identify the reduction in the physiological seed quality with storage.

scholarly journals GERMINATION OF STORED SEEDS OF FOUR TREE SPECIES FROM THE TROPICAL DRY FOREST OF MORELOS, MEXICO

2014 ◽  
Vol 92 (2) ◽  
pp. 281 ◽  
Author(s):  
Martha Cervantes ◽  
Eliane Ceccon ◽  
Consuelo Bonfil
Keyword(s):  
Seed Germination ◽  
Seed Size ◽  
Storage Time ◽  
Germination Rate ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Tropical Dry Forests ◽  
Germination Capacity ◽  
Dry Forests ◽  
And Storage

<p><span style="font-size: medium;"><span style="font-family: Times New Roman;">Studies on propagation of trees of Tropical Dry Forests are scarce in Mexico, besides, the provenance of seeds used in reforestation programs is generally unknown or poorly addressed. Knowledge on seed germination patterns of different provenances, and how they change through time, is useful to identify adequate sources of seeds and to develop seed collection and storage programs under the low-tech conditions prevailing in most rural nurseries. We evaluated seed size variation and germination of stored seeds from three different provenances per species in <em>Acacia bilimekii</em>, <em>Haematoxylum brasiletto</em>, <em>Lysiloma acapulcense</em>, and<em> L. divaricatum</em>.<em> </em>Seeds were collected in four sites in the Tropical Dry Forest of Morelos, Mexico, and were stored at room temperature; seed size was estimated through the volume of 75 seeds per provenance/species. Seed germination tests were made periodically from six to 24 months after storage and the effects of provenance and storage time on germination were analyzed using Anovas. There were significant differences in seed size among provenances in all species, while the effect of provenance on germination rate was significant in three of them. Germination rate changed with storage time among species and provenances. After 24 months, germination capacity was still ≥ 50% in all provenances of the two <em>Lysiloma</em> species, but in <em>A.</em> <em>bilimekii</em> there were large differences among provenances. Mean germination capacity was low in <em>H. brasiletto</em> after six months. More research on seed germination and storage of a larger set of species and provenances is needed to restore the Mexican tropical dry forests. </span></span></p>

scholarly journals Influence of growing technology of different intensification levels on soybean seed yield in short rotation cultivation

1970 ◽  
pp. 106-116
Author(s):  
O. Ya. Panasyuk ◽  
Y. M. Cholovskyi
Keyword(s):  
Crop Rotation ◽  
Seed Yield ◽  
Seed Treatment ◽  
Soybean Seed ◽  
Crop Rotations ◽  
Protection System ◽  
Soybean Seeds ◽  
Field Crop ◽  
Corn Crop ◽  
Sowing Seed

Purpose. To establish the influence of the soybean crops protection from diseases system on reduction the degree of damage and grain yield increase in conditions of the Right-Bank Forest-Steppe zone. Methods. Field, quantitative-weight, comparative-calculation, mathematical-statistical. Results. Dependence of the effectiveness of soybean protection systems against diseases (fusarium wilt, septoria, bacteriosis) and crop rotation is revealed. Application of the system of soybean protection against diseases grown in a 4-field crop rotation reduced the incidence of plant diseases by more than 2 times compared to the control, which significantly affected the level of soybean yield. In the areas of application of the soybean protection system against the most common diseases, which consists in pre-sowing seed treatment (Rhizoactive 2.0 kg/t + Maxim XL 035FS (1.0 l/t) in combination with spraying crops with Abacus fungicide (1.5 l/ha), provided an increase in seed yield from 1.89 to 2.16 t/ha (14.3%) and from 2.32 to 2.64 t/ha (13.8%) respectively depending on 2- and 4-field soybean-corn crop rotations cultivation. Even higher yields of soybean seeds were obtained from the effects of this protection system together with twice done fertilization of soybeans with Plantafol (2.0 kg/ha). As a result, the yield of soybean seeds increased on average over 5 years by 0.27-0.65 t/ha, or 13-28%, compared with the control, where soybeans were grown without fertilization, and only pre-sowing treatment of seeds with the introduction of fungicide was carried out. Conclusions. It was found that pre-sowing seed treatment (Rhizoactive + Maxim ХL 035 FS) in combination with Abacus fungicide and Plantafol fertilization helped to increase soybean seed yield from 1.89 t/ha on the control (without seed treatment in 2-field crop rotation) to 2.76 and 2.97 t/ha when using these drugs in three-field and four-field soybean-corn crop rotations or, respectively, by 46 and 57% more.

scholarly journals Pengaruh Media Dan Periode Simpan Terhadap Viabilitas Benih Cengkeh Tuni (Syzygium aromaticum L.)

2018 ◽  
Vol 14 (2) ◽  
pp. 97-104
Author(s):  
Marselina Noya ◽  
Johan Riry ◽  
Marthini Lesilolo
Keyword(s):  
Storage Time ◽  
Germination Rate ◽  
Storage Period ◽  
Germination Percentage ◽  
Syzygium Aromaticum ◽  
Storage Media ◽  
Randomized Design ◽  
Vigor Index ◽  
The Media ◽  
And Storage

This study aims to examine the influence of the media and the storage period on the viability of clove seeds. The study was conducted at the Ambon Plant Crops Protection and Protection Center laboratory. The study used a factorial completely randomized design with two types of factors and three replications. The storage media consists of 3 levels, namely: Without the storage media, the media for storing rice husk and the media for storing sawdust. The second factor is the storage period consists of 4 levels, namely: 10 days storage, 20 days storage, 30 days storage and 40 days storage. The parameters measured were germination power, germination rate, and vigor index. Storage media and storage period significantly affected germination and vigor indexes but did not significantly affect germination rates. The results showed that the sawdust storage media was a good medium for storing clove seeds (Syzygium aromaticum L.). This can be seen in the results of the average germination of clove seeds stored in powder storage media with a storage time of 10 days giving better results of 85% compared to rice husks at a storage time of 10 days with a germination percentage of 65%.  Keywords: clove seeds, save media, save period   ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh media dan periode simpan terhadap viabilitas benih cengkeh. Penelitian dilaksanakan di laboratorium Balai Besar Perbenihan dan Proteksi Tanaman Perkebunan Ambon. Penelitian menggunakan rancangan acak lengkap pola faktorial dengan dua macam faktor dan tiga kali ulangan. Media simpan terdiri dari 3 taraf yaitu: Tanpa media simpan, media simpan sekam padi dan media simpan serbuk gergaji. Faktor kedua adalah periode simpan terdiri dari 4 taraf yaitu: penyimpanan 10 hari, penyimpanan 20 hari, penyimpanan 30 hari dan penyimpanan 40 hari. Parameter yang diukur adalah daya berkecambah, laju perkecambahan dan indeks vigor. Media simpan dan periode penyimpanan berpengaruh nyata pada persentase perkecambahan dan indeks vigor tetapi tidak berpengaruh nyata pada laju perkecambahan. Hasil penelitian menunjukan bahwa media simpan serbuk gergaji merupakan media yang baik bagi penyimpanan benih cengkeh (Syzygium aromaticum L.). Hal ini terlihat pada hasil rata-rata daya berkecambah benih cengkeh yang disimpan pada media simpan serbuk dengan lama penyimpanan selama 10 hari memberikan hasil yang lebih baik yakni 85% jika dibandingkan dengan sekam padi pada lama penyimpanan 10 hari dengan persentase perkecambahan 65%. Kata Kunci: benih cengkeh, media simpan, periode simpan

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