Seed treatment and pre-inoculation of soybean: effect of storage period and agrochemicals on the physiological quality of seed and yield

Seed treatment is a practice that helps the initial establishment of the crop without the effects caused by pests and diseases. The association of diazotrophic bacteria with grasses has been used in the supply of nitrogen to plants; however, these microorganisms produce growth-promoting substances, which promote benefits in the growth and development of the crops. Thus, the objective of this study was to evaluate the compatibility of Azospirillum brasilense associated with the fungicide difenoconazole and the insecticide thiamethoxam by observing the effects on the quality of seed emergence of three wheat cultivars (Triticum aestivum L.). Three wheat cultivars, arranged in a 4 x 2 factorial system with four replicates, were tested. The treatments were the control; difenoconazole (Spectro® at a dose of 150 mL per 100 kg of seed); thiamethoxam (Cruiser® FS 350 at a dose of 200 mL per 100 kg seed) and difenoconazole + thiamethoxam, applied on wheat cultivars TBIO Mestre, TBIO Itaipu and TBIO Sinuelo. Bacteria from the Azospirillum genus were used in the inoculation. The wheat seed retains its quality when it checks the germination, vigor and independent accelerated aging, whether or not fungicide, insecticide and A. brasilense were used. The insecticide thiamethoxam increased the length of shoots and roots and provided compatibility with A. brasilense, and fungicide inhibited the length of shoots and roots and was antagonistic to the bacterium A. brasilense.

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Fluid-dynamic behavior of flaxseed fluidized and spouted bed

Ciência Rural ◽

10.1590/0103-8478cr20160644 ◽

2017 ◽

Vol 47 (10) ◽

Author(s):

Elza Brandão Santana ◽

Maria da Conceição da Costa Valente ◽

Lorena Gomes Corumbá ◽

Elisangela Lima Andrade ◽

Cristiane Maria Leal Costa ◽

...

Keyword(s):

Fluidized Bed ◽

Dynamic Behavior ◽

Seed Treatment ◽

Fluid Dynamic ◽

Seed Processing ◽

Linum Usitatissimum L ◽

Air Temperatures ◽

Physiological Properties ◽

Physiological Quality

ABSTRACT: Processing of particles in a moving bed, such as a fluidized bed or a spouting bed, is commonly used in the operations of drying, coating, and granulation of particulate systems. This process has applications in the chemical, pharmaceutical and, presently, agronomical industries, especially for seed treatment/coating. This research aimed to analyze the fluid-dynamic behavior of fluidized and spouting beds with different air temperatures and loads of flaxseeds (Linum usitatissimum L.), with estimates of the fluid-dynamic parameters correlated to each process. The parameters were compared with the values obtained from classical correlations in the literature, with indications of associated percentages of deviation. Influence of fluid dynamics on the physiological quality of seeds was assessed by germination tests and the germination speed index. An analysis of the results indicated that seed processing was adequate for processing in dynamically active beds; however, temperatures above 50ºC in both beds caused significant reductions in the physiological quality of the seeds. Processing in a fluidized bed presented a smaller reduction of the physiological properties of the flaxseed.

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Application of Trichoderma harzianum on the physiological quality of cowpea seeds

Australian Journal of Crop Science ◽

10.21475/ajcs.21.15.05.p2865 ◽

2021 ◽

pp. 643-648

Author(s):

Marcelo Laranjeira Pimentel ◽

Henara Valéria Miranda Castro ◽

Mike Kirixi Munduruku ◽

Larissa Conceição Cunha Ponte ◽

Deyvielen Maria Ramos Alves ◽

...

Keyword(s):

Trichoderma Harzianum ◽

Seed Treatment ◽

Germination Percentage ◽

Hypocotyl Length ◽

Cowpea Seeds ◽

Randomized Design ◽

Germination Speed ◽

Physiological Quality ◽

Set Up

The use of fungi in seed treatment can improve the plant's physiological characteristics. The aim of this study was to evaluate the influence of the use of Trichoderma harzianum on the physiological quality of bean seeds. The experiment was set up and conducted in the forest seed laboratory of the Federal University of Western Para, in a randomized design, using 4 procedures on the basis of a colony forming unit (CFU): T1 (0 CFU), T2 (4 x 109 CFU), T3 (8 x 109 CFU) and T4 (12 x 109 CFU), with 5 repetitions. Germination percentage (G%), germination speed index (GSI), hypocotyl length (HL) and radicle length (RL) were evaluated as variables. The data were analyzed by variance analysis and the averages were compared using the Tukey test (p≤0.05), in addition to the regression analysis, using the Minitab© version 18 statistical software. There were differences between the germination percentage tests, in which T2 obtained 100% of germinated seeds, for GSI it was observed that T2 and T3 were equal and superior to the other treatments, while for RL T1 and T2 obtained the best results, however, for HL there were no statistical differences between treatments. T2 was more efficient in the physiological quality of seeds to germination percentage and germination speed index

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

Journal of Biotechnology and Biodiversity ◽

10.20873/jbb.uft.cemaf.v4n2.oliveira ◽

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.

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Physiological quality of pink pepper seeds (Schinus terebinthifolia Raddi.) as a function of storage

Revista de Ciencias Agrícolas ◽

10.22267/rcia.213801.150 ◽

2021 ◽

Vol 38 (1) ◽

pp. 144-157

Author(s):

Thaísa De Oliveira Silveira ◽

Madelon Rodrigues Braz ◽

Gilmara Pires de Moura Palermo ◽

Tiago Böer Breier

Keyword(s):

Moisture Content ◽

Storage Time ◽

Storage Period ◽

Seed Storage ◽

Dry Weight ◽

Native Forest ◽

Alternative Source ◽

Physiological Quality ◽

And Storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

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Effect of fungal incidence on physiological quality of tobacco seeds used in Brazil

Arquivos do Instituto Biológico ◽

10.1590/1808-1657000352017 ◽

2018 ◽

Vol 85 (0) ◽

Cited By ~ 1

Author(s):

Mariane Sayuri Ishizuka ◽

Maria Heloisa Duarte de Moraes ◽

Maria Helena Carmignani Pescarin Chamma ◽

Carlos Eduardo Pulcinelli ◽

José Otavio Machado Menten

Keyword(s):

Seed Treatment ◽

Pathogenic Fungi ◽

Test Results ◽

Fusarium Spp ◽

Germination Test ◽

Tobacco Seed ◽

Tobacco Seeds ◽

Physiological Quality ◽

Seeds Germination

ABSTRACT: The objectives of the present project were to evaluate the sanity and germination of tobacco seed samples cultivated in Brazil and to identify potential pathogenic fungi to the culture. Thirty-four representatives samples of tobacco seeds were evaluated through germination and sanity test by the blotter-test. On the germination test, results were expressed in percentage of seedlings considered normal, abnormal and non-germinated seeds. The percentage of seeds germination varied between 54.5 and 90%. According to sanity test, it was verified the incidence of Alternaria alternata, Cladosporium spp., Fusarium spp., and Phoma spp. The incidence of A. alternata varied from 3 to 67%, and Fusarium spp. varied from 0 to 19%. There was significative positive correlation between the incidence of A. alternata and the percentage of seed germination. Species of Alternaria and Fusarium can be potential pathogens to tobacco culture and an alarm for the necessity of seed treatment of the seeds that are transporting these fungi.

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Evaluation of the physiological quality of anadenenthera peregrina (L.) Speg. seeds during storage

Revista Árvore ◽

10.1590/s0100-67622009000100004 ◽

2009 ◽

Vol 33 (1) ◽

pp. 27-33 ◽

Cited By ~ 2

Author(s):

Daniel Santos Pinho ◽

Eduardo Euclydes de Lima e Borges ◽

Viviana Borges Corte ◽

Luiz Carlos Bhering Nasser

Keyword(s):

Electrical Conductivity ◽

Storage Temperature ◽

Storage Period ◽

Seed Priming ◽

Seed Moisture ◽

Physiological Quality ◽

Viable Seeds ◽

Cold Chamber ◽

Constant Percentage

The aim of this experiment was to evaluate the effect of storage temperature on the viability and vigour of A. peregrina seeds. Seeds of A. peregrina harvested in Viçosa-MG, in September 2005 were used. The seeds were stored in the Laboratory of Forest Seeds Analysis (LASF) of the Universidade Federal de Viçosa (UFV), in a cold chamber, under approximately 5ºC over150 days. The seeds were stored under 20ºC for 150 days more. Seed moisture was determined after oven-drying at 105 ± 3ºC for 24 hours. The seeds were analyzed monthly using germination, tetrazolium and electrical conductivity tests and Osmopriming during 300 days, with four repetitions of 25 seeds. A. peregrina seeds kept a constant percentage of germination and viable seeds under the tetrazolium test for five months of storage, under either 5ºC and 20ºC. The electrical conductivity test showed significant differences in relation to the storage period, proving to be more sensitive than the standard germination test. Seed priming in PEG -0,4 MPa solution was not efficient in recovering the viability and vigor of the stored seeds at 5ºC and 20ºC.

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Treatment of rice seeds with salicylic acid: seed physiological quality and yield

Journal of Seed Science ◽

10.1590/2317-1545v36n3636 ◽

2014 ◽

Vol 36 (3) ◽

pp. 352-356 ◽

Cited By ~ 8

Author(s):

Lizandro Ciciliano Tavares ◽

Cassyo Araújo Rufino ◽

Sandro de Oliveira ◽

André Pich Brunes ◽

Francisco Amaral Villela

Keyword(s):

Salicylic Acid ◽

Seed Yield ◽

Seed Treatment ◽

Seed Quality ◽

Rice Seed ◽

Promising Alternative ◽

Seed Industry ◽

Physiological Quality ◽

Rice Seeds

Seed treatment with growth regulators, especially salicylic acid, is a promising alternative to the seed industry because it is an important inducer of resistance to diseases and pests, as well as acting significantly on quality and seed yield. The objective of this study was to evaluate the performance of rice seed treated with different concentrations of salicylic acid, as well as assess the crop yield and seed quality. The treatments consisted of increasing levels of 0, 50, 100, 150 and 200 mg.L-1 salicylic acid. To this was prepared a stock solution of salicylic acid and the highest concentration by successive dilution in distilled water, the other concentrations were obtained. The physiological quality of seeds produced was treated and evaluated by tests of vigor and germination, and after harvest were evaluated seed yield. It follows that treatment of rice seeds with salicylic acid concentrations up to 130 mg.L-1 at a dose of 2 mL.kg-1 seed does not affect the germination and affects the strength, however provides substantial increases in the yield of seeds. The seed treatment with salicylic acid has no influence on seed quality produced.

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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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Metabolites of the phenylpropanoid pathway and physiological quality of soybean seeds in storage

Journal of Seed Science ◽

10.1590/2317-1545v43253585 ◽

2021 ◽

Vol 43 ◽

Author(s):

Julia Abati ◽

Claudemir Zucareli ◽

Cristian Rafael Brzezinski ◽

Francisco Carlos Krzyzanowski ◽

José de Barros França-Neto ◽

...

Keyword(s):

Lignin Content ◽

Seedling Emergence ◽

Storage Period ◽

Seed Storage ◽

Phenylpropanoid Pathway ◽

Controlled Environment ◽

Soybean Seeds ◽

Physiological Quality ◽

Storage Potential

Abstract: The aim of this study was to evaluate changes in the physiological quality of soybean seeds throughout a storage period in two environments, and to evaluate how these changes are related to metabolites of the phenylpropanoid pathway. A completely randomized experimental design was used in a 4 × 8 factorial arrangement (storage periods × cultivars) with four replications. We used seeds from cultivars with contrasts in lignin content, color, and presence of anthocyanin in the seed coat, and isoflavone content in the seed. The seeds were kept for six months under cold and dry storage and in a non-controlled environment. Germination, first germination count, seedling emergence, and tetrazolium testing were performed on the seeds every two months. The physiological quality of the seeds declines during the storage period, with higher rates of decrease in the non-controlled environment. The metabolites of the phenylpropanoid pathway that were studied, especially lignin, affect seed storage potential. Cultivars with higher lignin content show greater storage potential, especially in a non-controlled environment.

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