scholarly journals Physiological and sanitary quality of organic tomato seeds treated with clove basil extracts

2018 ◽  
Vol 9 (1) ◽  
pp. 26-33
Author(s):  
Eduardo Fontes Araujo ◽  
Aldo Luiz Mauri ◽  
Roberto Fontes Araujo ◽  
Hugo Tiago Ribeiro Amaro ◽  
Derly José Henriques da Silva ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Seedling Emergence ◽  
Control Cost ◽  
Organic Cultivation ◽  
Tomato Seeds ◽  
Randomized Design ◽  
Cold Room ◽  
Physiological Quality ◽  
Aspergillus Sp

The seed treatment provides disease control before the crop installation, minimizing the pathogens control cost. However, there are few seed treatment alternatives to organic farming. In this sense, the objective of the study was to evaluate the physiological and sanitary quality of organic tomato seeds treated with clove basil extract. The experiment was carried out in a completely randomized design with a 2x5 factorial (extract concentrations x imbibition periods) for each seed lot. Six lots of tomato seeds produced under organic cultivation were used. The samples of the lots were stored in glass pots in a cold room at 16 ºC and 80% of relative humidity for 12 months. Seeds were treated with clove basil extract at concentrations of 5 and 10% for 0; 2.5; 5; 7.5 and 10 minutes. The seeds physiological and health quality were evaluated by the following tests: moisture content, germination, first count of germination, seedling emergence, emergence speed index and seed health. In general, the wild basil extract does not affect the physiological quality of tomato seeds. There were inhibitory and antifungal activity of Aspergillus sp. using basil extract, significantly reducing their impact on the seeds, for all evaluated factors. It was concluded that the clove basil extract inhibit the Aspergillus sp. incidence in organic tomato seeds, maintaining its physiological quality.

scholarly journals Application of Trichoderma harzianum on the physiological quality of cowpea seeds

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

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.

scholarly journals Treatment with insecticide and fungicide on the physiological quality of lentil seeds

2023 ◽  
Vol 83 ◽  
Author(s):  
J. Rubert ◽  
S. H. B. Dornelles ◽  
U. R. Nunes ◽  
N. T. Pedrollo ◽  
M. Peripolli ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Accelerated Aging ◽  
Lower Number ◽  
Thiophanate Methyl ◽  
Pests And Diseases ◽  
Randomized Design ◽  
Physiological Properties ◽  
Physiological Quality ◽  
Completely Randomized Design

Abstract The low Brazilian productive index and the high demand have aroused interest in the cultivation of lentils, however the legume is little known and needs further studies. The objective of this study was to analyze and identify the effects of treatments with insecticides and fungicides on the physiological quality of lentil seeds, CA-1512 strain. The experiments were conducted in the seed laboratory in a completely randomized design with seven treatments and four replicates. Seed treatment with Thiophanate-methyl; Fluazinam® (180 ml) + Pyraclostrobin; Thiophanate-methyl; Fipronil® (150 ml) promoted higher levels of germination under accelerated aging, lower number of abnormal seedlings and longer lengths of shoot and radicle for the emergence in paper. Treatment with Carboxin; Thiram® (250 ml) + Imidacloprid® (150 ml) allowed a higher value in the first count of germination in sand, lower number of dead seeds under accelerated aging and longer root length, in the emergence in sand. Shoot length in the emergence in sand increased after seed treatment with Metalaxyl-M; Fludioxonil® (75 ml) + Pyraclostrobin; Thiophanate-methyl; Fipronil® (150 ml). Treatments with fungicides and insecticides considerably improved the physiological properties of the seeds, thus being able to guarantee greater phytosanitary qualities in the field, generating healthier seedlings and with protection against possible pests and diseases, and consequently guaranteeing greater productivity.

scholarly journals Physiological quality of soybean seeds treated with imidacloprid before and after storage

2020 ◽  
Vol 66 (No. 10) ◽  
pp. 513-518
Author(s):  
Renata Cristiane Pereira ◽  
Murilo Fuentes Pelloso ◽  
Larissa Vinis Correia ◽  
Thaisa Cavalieri Matera ◽  
Rayssa Fernanda dos Santos ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seed Treatment ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Soybean Seeds ◽  
Germination Test ◽  
Soybean Cultivars ◽  
Before And After ◽  
Physiological Quality

This study aimed to evaluate the effect of different slurry volume of imidacloprid insecticide on the physiological potential during the storage of seeds of three soybean cultivars. A completely randomised experimental design was adopted, in a 6 × 3 × 2 factorial scheme, which treatments were six slurry volumes with imidacloprid insecticide (0, 200, 500, 800, 1 100 and 1 400 mL/100 kg of seeds), 3 soybean cultivars (SYN15630, M5947, and NS5959) and 2 storage periods (0 and 30 days after seed treatment), with four replications. The treated seeds were stored in kraft paper bags with controlled temperature and humidity. The physiological potential of the seeds was evaluated by standard germination test, electrical conductivity, accelerated aging, seedling emergence in the sand seedbed, and the field. The germination and vigor of soybean seeds were reduced during storage, especially with the increase in the volumes of the insecticide solution.  

scholarly journals Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo'

2017 ◽  
Vol 47 (3) ◽  
Author(s):  
Daniela Vieira dos Anjos Sena ◽  
◽  
Edna Ursulino Alves ◽  
Dayana Silva de Medeiros ◽  
Keyword(s):  
Electrical Conductivity ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Cold Test ◽  
Agricultural Science ◽  
Additional Information ◽  
Randomized Design ◽  
Seed Analysis ◽  
Physiological Quality

ABSTRACT: The vigor tests are intended to monitor the quality of seeds as it allows reliably distinguish lots of low and high vigor, providing additional information to the germination test. So in this study the objective was to identify the most efficient vigor tests on stratification of lots of corn seeds cv. 'Sertanejo'. The experiment was conducted at Laboratory of Seed Analysis at the Center of agricultural Science of the Universidade Federal da Paraíba, using samples from 20 seed lots in a completely randomized design. For characterization of the lots it was evaluated water content, germination and vigor (cold test, electrical conductivity, accelerated aging, seedling emergence in field and germination at low temperatures). The accelerated aging, electrical conductivity and field emergence of seedlings tests are the most efficient for classification of lots of corn seeds cv. 'Sertanejo' in levels of vigor, been the seeds of lot 1 the most vigorous.

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 Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents

2013 ◽  
Vol 35 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Célia Maria Peixoto de Macedo ◽  
Messias Gonzaga Pereira ◽  
Deisy Lúcia Cardoso ◽  
Roberto Ferreira da Silva
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Fresh Weight ◽  
Reciprocal Effect ◽  
F1 Hybrid ◽  
Reciprocal Crosses ◽  
Randomized Design ◽  
Physiological Quality

This study aimed to evaluate the physiological quality of seeds of three hybrid combinations and their reciprocals, as well as the selfed parents, and to estimate genetic parameters associated with seed quality, and possible reciprocal effects. The experiment used F1 hybrid papaya seeds and their reciprocal crosses between JS12 and Sunrise Solo 72/12, Sekati and Waimanalo, and the seeds of the parents and two varieties, totaling 12 treatments in a completely randomized design with four replications. Weight of 1,000 seeds, germination, seedling fresh weight and seedling dry weight, first count, speed of germination and seedling emergence were determined. There was no xenia effect for weight of 1,000 seeds and seedling fresh weight. The reciprocal effect was not expressed for germination and seedling emergence, while for the other traits, it was not expressed only for JS12 x Sekati. Differences among hybrids and their parents occurred as a result of the action of pollen in the crosses, and justified by early heterosis. The most sensitive vigor tests to discriminate differences in performance of hybrids and their reciprocals were speed of germination and seedling fresh weight. There were high magnitudes of the estimates for the genotypic determination coefficient for most of the evaluated variables, except for seedling fresh weight.

scholarly journals Gibberellic Acid Utilization in Seeds and Plants of Beans: Effect on Growth and Seeds Physiological Quality

2019 ◽  
Vol 11 (2) ◽  
pp. 541 ◽  
Author(s):  
Lanes B. A. Jaques ◽  
Ivan R. Carvalho ◽  
Vinícius J. Szareski ◽  
João R. Pimentel ◽  
Cristian Troyjack ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Seed Treatment ◽  
Dry Mass ◽  
Morphological Attributes ◽  
Randomized Design ◽  
Physiological Quality ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Bean Crop

The growth regulators from gibberellins, when applied on plants, might improve physic and physiological features, stimulate cell division and elongation, this study aimed at evaluating the influence of gibberellic acid doses applied exogenously on bean crop through seed treatment, and analyzing its effects on morphological attributes of seedlings and physiological quality of the seeds produced. The experimental design was completely randomized design, with treatments corresponding to the doses: zero (distilled water only), 50, 100 and 200 mg L-1, arranged in four replicates. The use of gibberellic acid in bean seeds did not result in changes on the number of leaves, leaf area, dry mass of leaves and stem. Applications of foliar gibberellic acid potentiated stem height and root dry mass of seedlings.

scholarly journals Compatibility of Azospirillum brasilense with fungicide and insecticide and its effects on the physiological quality of wheat seeds

2018 ◽  
Vol 39 (2) ◽  
pp. 855 ◽  
Author(s):  
Janete Denardi Munareto ◽  
Thomas Newton Martin ◽  
Tania Maria Müller ◽  
Ubirajara Russi Nunes ◽  
Guilherme Bergeijer da Rosa ◽  
...  
Keyword(s):  
Azospirillum Brasilense ◽  
Seed Treatment ◽  
Accelerated Aging ◽  
Triticum Aestivum L ◽  
Wheat Cultivars ◽  
Pests And Diseases ◽  
Physiological Quality ◽  
Growth Promoting ◽  
Germination Vigor

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.

scholarly journals Fluid-dynamic behavior of flaxseed fluidized and spouted bed

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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