scholarly journals Effect of the storage of soybean seeds treated with agrochemicals on the physiological quality and on the seedlings morphology

2020 ◽  
Vol 6 ◽  
pp. 1-8
Author(s):  
João Pedro Garcia Nogueira ◽  
Danúbia Aparecida Costa Nobre ◽  
Guilherme Ferreira Alves ◽  
Éder Matsuo ◽  
Willian Rodrigues Macedo
Keyword(s):  
Seed Treatment ◽  
Storage Time ◽  
Soybean Seeds ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Anthranilic Diamide ◽  
Seedling Length ◽  
Physiological Quality ◽  
The One

Seed treatment is the most efficient technique for controlling pests and pathogens that can influence the initial development of the crop. However, storing treated seeds may damage the physiological quality. Thus, the objective of this study was to evaluate the influence of storage on the physiological quality of treated soybean seeds and on the morphology of soybean seedlings. The treatments were carried out with Fludioxonil, Imidacloprid and Anthranilic Diamide, in the dosage of 200, 150 and 100 mL of the commercial product 100 kg of seeds, respectively, from the cultivar BRSMG752S. The experimental designs used were randomized blocks (greenhouse) and completely randomized (laboratory), in a simple factorial 4x4scheme, with 4 sowing times (30, 20, 10 and 0 days after treatments) and 4 treatments (3 products and untreated seeds) with 4 repetitions. The treatment of soybean seeds with Anthranilic Diamide submitted to different storage periods was the one with the closest physiological quality to the treatment without application of agrochemicals. The soybean seeds treated with Imidacloprid showed a reduction in physiological quality with the storage time, reduction (in general) in the root length and presented a lower seedling length at 20 days of storage.

scholarly journals The Effect of Mineral Supplementation on the Physiological Quality, Enzymes Activity and the Soybean Seedlings Development

2020 ◽  
Vol 8 (4) ◽  
pp. 678
Author(s):  
Gerusa Massuquini Conceição ◽  
Thomas Newton Martin ◽  
Luciane Almeri Tabaldi ◽  
Glauber Monçon Fipke ◽  
Charleston Dos Santos Lima
Keyword(s):  
Seed Treatment ◽  
Nutrient Content ◽  
Guaiacol Peroxidase ◽  
Soybean Seeds ◽  
Nutritional Content ◽  
Initial Development ◽  
Soybean Seedlings ◽  
Mineral Supplementation ◽  
Physiological Quality

The quality of soybean seeds is influenced by the amount of nutrients that are available for the germination and initial development of the seedlings. Thus, the aim of this research was to evaluate the influence of the nutritional content of the seeds and mineral supplementation via seed treatment on physiological quality, enzymatic activity and initial development of soybean seedlings. We assessed soybean seeds from two lots with low and high nutritional content, submitted or not to mineral supplementation via seed treatment. The physiological quality of seeds was assessed by the germination test and first germination count. The initial development of seedlings was evaluated by the tests of length and root system volume, shoot length, and cotyledons, roots and shoot dry matter. It was also determined the activity of α-amylase in cotyledons, acid phosphatase (APase) and guaiacol peroxidase (POD) in the roots and shoot. Mineral supplementation via seed treatment positively influenced the physiological quality and development of seedlings, and the activity of α-amylase in the cotyledons, POD and APase enzymes in the shoot from the low nutrient lot. Low nutrient seeds have characteristics of soybean seedling production similar to those of high nutrient content by using mineral supplementation via seeds.

scholarly journals Physiological potential of soybean industrially treated with different spray volumes and dry powder

2020 ◽  
pp. 836-841
Author(s):  
Julia Abati ◽  
Cristian Rafael Brzezinski ◽  
Claudemir Zucareli ◽  
Flávia Werner ◽  
Ademir Assis Henning ◽  
...  
Keyword(s):  
Bradyrhizobium Japonicum ◽  
Seed Treatment ◽  
New Technologies ◽  
Seedling Emergence ◽  
Soybean Seeds ◽  
Dry Powder ◽  
Soybean Seedlings ◽  
Randomized Experimental Design ◽  
Physiological Quality

The industrial treatment of seeds has favored the development of new technologies such as the use of dry powder. It has made application of spray volumes higher than those used in the conventional treatment. Therefore, this study aimed to assess the effect of industrial treatments at different spray volumes with and without application of dry powder on physiological quality of soybean seeds. A completely randomized experimental design was performed with four replications in a 5 x 2 factorial arrangement for cultivars BRS 359 RR and BRS 284. The factors were five spray volumes (0, 600, 1200, 1800 and 2400 mL. 100 kg-1) with and without the application of dry powder. The products used to obtain the volumes were fungicides (carbendazim + thiram); insecticides (imidacloprid + thiodicarb); nematicide (abamectin); micronutrients (cobalt, molybdenum and zinc); polymer (peridiam); biostimulant (kinetin + gibberellic acid + 4-indol-3-ylbutyric acid) and inoculant (Bradyrhizobium japonicum). The physiological quality of the seeds was determined by the following assessments: germination, first count of germination test, seedling emergence in sand, emergence speed index, and total length of the seedling shoot and root. The results showed that increased spray volume associated with the application of dry powder in seed treatment reduced the physiological quality of soybean seeds, and spray volumes up to 1200 mL 100 kg-1 in seed treatment without the application of dry powder do not impact the emergence and establishment of soybean seedlings.

scholarly journals The effect of drying temperatures and storage of seeds on the growth of soybean seedlings

2016 ◽  
Vol 38 (4) ◽  
pp. 287-295 ◽  
Author(s):  
Cesar Pedro Hartmann Filho ◽  
André Luís Duarte Goneli ◽  
Tathiana Elisa Masetto ◽  
Elton Aparecido Siqueira Martins ◽  
Guilherme Cardoso Oba
Keyword(s):  
Moisture Content ◽  
Storage Time ◽  
Storage Conditions ◽  
Soybean Seeds ◽  
Climate Control ◽  
Soybean Seedlings ◽  
Different Temperatures ◽  
Physiological Quality ◽  
And Storage

Abstract: Drying of seeds reduces their moisture content to levels appropriate for storage. However, care in the temperatures applied in the process is necessary to avoid damage to the seeds that are dried. The aim of this study was to evaluate the effect of different drying temperatures and storage on the growth of soybean seedlings. Harvested with a moisture content of approximately 23% (w.b.), the seeds were dried at different temperatures (40, 50, 60, 70, and 80 °C) until reaching moisture content of 12.5 ± 0.7% (w.b.), and they were subsequently stored for 180 days in an environment without climate control. A germination test and evaluations of seedling performance were carried out every 45 days, determining the full length of the seedling and hypocotyl and root lengths, along with their respective dry matter weights. The results showed that: a) the increase in the temperature of drying air affects the physiological quality of soybean seeds, and this effect is accentuated over time, especially on root length; and b) the air temperature of 40 °C can be recommended for drying of soybean seeds in association with the storage time of 180 days under storage conditions without climate control.

scholarly journals Use of seed treatment with fungicide in control of colletotrichum truncatum and physiological quality of soybean seeds glycine max

2013 ◽  
Vol 4 (2) ◽  
pp. 98-106
Author(s):  
Vinícius Almeida Oliveira ◽  
Lorenxo Paradiso Martins ◽  
Rogério Cavalcante Gonçalves ◽  
Luíz Paulo Figueredo Benício ◽  
Daniella Lima da Costa ◽  
...  
Keyword(s):  
Glycine Max ◽  
Seed Treatment ◽  
Pathogenic Fungus ◽  
Dry Weight ◽  
Soybean Seeds ◽  
Colletotrichum Truncatum ◽  
Fresh Weight ◽  
Crop Development ◽  
Physiological Quality

The fungus are the main microorganisms present in seeds, is the main cause of deterioration and loss in production. The anthracnose caused by C. truncatum associated with soybean seeds as has main vehicle for introduction into the planting areas can be detected in all stages of crop development, from the cotyledons to the end of the cycle, being present in the stems, veins, leaflets and pods. Thus aimed to evaluate the influence of using different products fungicides as seed treatment, where the seeds were inoculated with the pathogenic fungus and treated with the chemicals They take Carbedazim + Fludioxonil + metalaxyl-M and carboxin + thiram. For each fungicide product was two tramentos done using the doses recommended by the manufacturer and 75% of dose. We evaluated health, germination and promote plant (Plant growth, fresh weight and dry weight of root and shoot). This work concludes that the use of fungicide controls significantly seeds infected with C. truncatum and presents a significant improvement as the development of structures seedling.

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

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.

scholarly journals Effects of phosphine fumigation on the quality of soybean seeds

2013 ◽  
Vol 35 (2) ◽  
pp. 179-182 ◽  
Author(s):  
Francisco Carlos Krzyzanowski ◽  
Irineu Lorini ◽  
José de Barros França-Neto ◽  
Ademir Assis Henning
Keyword(s):  
Insect Pests ◽  
Accelerated Aging ◽  
Experimental Unit ◽  
Soybean Seeds ◽  
Minimum Concentration ◽  
Gas Concentration ◽  
Seedling Length ◽  
Physiological Quality ◽  
Gas Tight

Fumigation is a technique employed to eliminate insect pests in stored seeds by using gas. The aim of the experiment was to evaluate the effect of the gas phosphine on germination and on vigor (accelerated aging and seedling length) of soybean seeds. Soybean seeds of two cultivars with two vigor levels were used. Each treatment was replicated four times and each experimental unit consisted of two kilograms of seeds, which were placed in individual 1 m³ gas-tight capacity chambers with phosphine. The concentrations used were 1.0; 2.0 and 3.0 g PH3.m-3, achieved by applying 3.0; 6.0 and 9.0 g of Fertox® commercial formulation. During seven days, the phosphine gas concentration within each chamber was monitored using the Silochek® gas meter. After this period, the chambers were opened, the seeds were removed and the quality analyses were performed. Throughout the experiment, PH3 concentrations in the chambers remained at the concentrations required for the elimination of all life stages of insect pests of stored seed. Even in the lowest dosage, the gas concentration remained above 400 ppm that is considered the minimum concentration for eliminating insect pests. No detrimental effects were detected on the physiological quality of the fumigated seeds.

scholarly journals Physiological performance of wheat seeds treated with micronutrients and protection products during storage

2017 ◽  
Vol 39 (2) ◽  
pp. 182-188 ◽  
Author(s):  
Joice Aline Freiberg ◽  
Marcos Paulo Ludwig ◽  
Suemar Alexandre Gonçalves Avelar ◽  
Eduardo Girotto ◽  
Darlan de Maria Eickstedt ◽  
...  
Keyword(s):  
Moisture Content ◽  
Seed Treatment ◽  
Storage Time ◽  
Accelerated Aging ◽  
High Quality ◽  
Physiological Performance ◽  
Physiological Quality ◽  
Wheat Seeds

Abstract: Seeds with high quality are one of the important factors to consider in the crops establishment on field. Therefore, the physical and physiological quality of wheat seeds treated with mixes of micronutrients including zinc and protective products were aimed. The wheat seeds were analyzed in a factorial scheme 5x3x4, with five storage time: 0, 60, 120, 180 and 240 days; three micronutrients: micronutrients 1 (1% Mn; 0.1% Mo; 10% Zn); micronutrients 2 (0.3% B; 0.3% Co; 3% Zn) and no micronutrients, and four protective products: untreated seeds, polymer (Colorseed He), fungicide carboxin + thiram (Vitavax® Thiram 200 SC) + insecticide thiamethoxam (Cruiser® 350 FS) and polymer + fungicide + insecticide. After treatment, the seeds were stored under uncontrolled conditions for 240 days and at intervals of 60 days, the germination, accelerated aging and moisture content were determined. Wheat seeds untreated and treated with polymer have the best physiological performance during storage, regardless micronutrients treatments. The wheat seeds treated with carboxin + thiram + thiamethoxam and polymer + carboxin + thiram + thiamethoxam can be storage up to 120 days, under uncontrolled conditions, regardless micronutrients treatments. The seed treatment does not alter the moisture content of wheat seeds.

scholarly journals Phytotoxicity in soybean seeds treated with phytosanitary products at different application times

2020 ◽  
Vol 42 ◽  
Author(s):  
Everson Reis Carvalho ◽  
Debora Kelli Rocha ◽  
Dayliane Bernardes de Andrade ◽  
Raquel Maria de Oliveira Pires ◽  
Amanda Carvalho Penido ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Seed Quality ◽  
Soybean Seed ◽  
Field Performance ◽  
Soybean Seeds ◽  
Water Restriction ◽  
Hypocotyl Length ◽  
Initial Development ◽  
Physiological Quality ◽  
Phytosanitary Products

Abstract: Due to increased use of treated seeds, studies are necessary in relation to the effects of the treatments and their possible consequences on seed quality. The aim of this study was to evaluate phytotoxicity according to when phytosanitary products are applied on soybean seeds and their effect on seed physiological quality and field performance. A completely randomized experimental design was used in a 9 × 2 factorial arrangement involving 9 seed treatments (fungicides and insecticides) and two application times (60 days before sowing and at the time of sowing in the field). Moisture content was determined and tests were performed to ascertain physiological quality (germination and germination under water restriction). Root and hypocotyl length, seedling length, and vigor and uniformity indices were evaluated with the assistance of Vigor-S®. In the field, the following determinations were made: plant height at 30 and 60 days after emergence, first pod height, number of pods per plant, number of seeds per pod, and yield. Early seed treatment in the soybean crop can affect initial development of the plants, but it does not affect yield. The phytotoxicity caused by the soybean seed treatment was observed in the root length characteristic.

scholarly journals Physiological quality and seed storage potential of four soybean cultivars

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.

scholarly journals Quality of soybean seeds treated with fungicides and insecticides before and after storage

2016 ◽  
Vol 38 (4) ◽  
pp. 278-286 ◽  
Author(s):  
Thaís Francielle Ferreira ◽  
João Almir Oliveira ◽  
Rafaela Aparecida de Carvalho ◽  
Laís Sousa Resende ◽  
Cassiano Gabriel Moreira Lopes ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Seedling Emergence ◽  
Control Group ◽  
Soybean Seeds ◽  
Before And After ◽  
Negative Effect ◽  
Health Quality ◽  
Physiological Quality ◽  
Treatment Application

Abstract: The timing of seed treatment application is important to keep soybean seeds quality. Therefore, the aim of this study was verify the effect of fungicides and insecticides treatment in soybean seeds quality before and after storage. Seeds of NS 7494, NS 8693 and NS 7338 IPRO were utilized and analyses separately, through a factorial scheme 3x6, with three application moments: treated and assessed; treated, stored and assessed; stored, treated and assessed; and six combination of fungicides and insecticides: Cropstar(r) + Derosal Plus(r); Cropstar(r) + Maxim xl(r); Cruiser(r) + Derosal Plus(r); Cruiser(r)+ Maxim xl(r); Standak Top(r) and the control group. Germination, seedling emergence, accelerate aging, cold and health tests were performed. It was determined that the combination with Cruiser(r) doesn't affect the physiological quality of soybean seeds treated and assessed, and treated after two month of storage. Cropstar(r) + Derosal plus(r) keeps physiological quality of soybean seeds stored and treated for two months, while Standak top(r) has negative effect. The combination with Cropstar(r) damages the physiological quality of soybean seeds treat after two months of storage. The fungicide Derosal plus(r) improves the health quality of soybean seeds regardless treatment moment.

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