Qualidade de sementes de feijão-caupi tratadas com produtos químicos e armazenadas em condições controladas e não controladas de temperatura e umidade

Oliveira, Lucicléia Mendes de; Schuch, Luis Osmar Braga; Bruno, Riselane de Lucena Alcântara; Peske, Silmar Teichert

doi:10.5433/1679-0359.2015v36n3p1263

Cited by 11 publications

(11 citation statements)

References 4 publications

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“…Studies on the treatment of soybean seeds with different commercial products containing pyraclostrobin + fipronil + thiophanate-methyl also observed increases in root length and dry mass, as well as other developmental aspects such as root volume, plant height, and leaf area (BALARDIN et al, 2011). Similarly, Oliveira et al (2015) observed a positive effect on the performance of cowpea, and Migliorini et al (2012) reported an increase in hypocotyl length and primary root in canola seeds.…”

Section: Resultsmentioning

confidence: 90%

PHYSIOLOGICAL QUALITY OF Brachiaria brizantha SEEDS TREATED WITH FUNGICIDE AND INSECTICIDE

et al. 2018

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This study aimed to evaluate the effects of chemical treatment of seeds with fungicide and insecticide on the seed physiological quality of Brachiaria brizantha cultivar MG5. Two experiments with four replicates were carried out in a completely randomized design. In the first experiment, the seeds were treated with the fungicide pyraclostrobin + fipronil + thiophanate-methyl and in the second, with the insecticide thiamethoxam, both at doses of 0, 150, 300, 450, and 600 mL of commercial product (CP)/100 kg of seeds. Physiological characterization was done on the basis of the first germination count, germination (%), emergence (%), emergence speed index, and length and dry mass of shoot and root. The treatment of B. brizantha seeds with the fungicide pyraclostrobin + fipronil + thiophanate-methyl benefits the physiological quality of seeds, improving germination and root development, with no phytotoxic effect up to the dose of 600 mL of CP/100 kg of seeds. The insecticide thiamethoxam has a biostimulating effect on B. brizantha cultivar MG5 up to the dose of 270 mL of CP/100 kg of seeds, but is phytotoxic in larger doses.

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Section: Resultsmentioning

confidence: 90%

PHYSIOLOGICAL QUALITY OF Brachiaria brizantha SEEDS TREATED WITH FUNGICIDE AND INSECTICIDE

et al. 2018

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“…Non-germinated seeds - ---------------------------------% ----------------------------------- Oliveira et al (2015) also found fungicide treatment to increase germination compared to a control, being tiametoxam, fipronil and piraclostrobina+tiofanato metílico, as well as imidacloprido+tiodicarbe, beneficial to cowpea seeds. Gomes et al (2009), working with soybeans, found that high vigor seeds do not require fungicide treatment once they show rapid germination and emergence, which avoids any possible contamination of the substrate.…”

Section: Abnormal Seedlingsmentioning

confidence: 99%

Late harvest and chemical treatment of cowpea seeds

2021

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Reduced quality ofcowpea due to late harvest and therefore pathogen incidence may influence the results of the germination test, whenever losses are associated with the agentsadhered to seed coat;in that context, chemical treatmentof seeds during the evaluations may reflect more accurately physiological quality of the samples, which in turn may assurethe emergence results of healthy seedlings and establishment of appropriate plant populations inthe field. This study had the objective ofevaluating the effects of fungicide treatment on minimizing physiological quality losses of cowpea seedsdue to lateharvestin germination and seedling development tests. The experimental design was the completely randomized with four replications. Treatments consisted of cowpea, cultivar BRS Guariba, harvested at different times (0, 3, 6, 9, 12 and 15 days after physiological maturity)andtreated or not with fungicide carboxim+thiramfor seed quality tests. Seeds were initially characterized by seed moisture and mass. Afterwards, sampleswere evaluated by tests ofgermination percentage, germination first count, seedling length and dry matter. Data was submitted to variance analysisand means were analyzed as a 2x6 factorial. Means from chemical treatment and harvest times were compared by the Tukey test and regression analysis (p≤0.05), respectively, with subsequent unfolding of any significant interactions. Delayed harvest of cowpea seeds sharply reduces germination and vigor; fungicide treatment before performing physiological tests enables to establish thatseed quality losses can bein part caused by pathogen vehiculationonthe seed coat.

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“…However, Pereira et al (2012) found that the first germination count of corn seeds was negatively influenced by increasing doses of molybdenum, probably caused by damage to the seed embryo by high concentrations of salt in the seed. Oliveira, Schuch, Bruno and Peske (2015), evaluating the physiological quality of cowpea seeds, observed that treatment with the micronutrient product COMOL 118 (1% cobalt and 8% molybdenum) yielded seeds similar to those not treated with the product.…”

Section: Introductionmentioning

confidence: 99%

Physiological potential of corn seeds treated with different dosages of molybdenum and potassium

Gomes¹,

Queiroz²,

Takahashi³

2021

Semina: Ciênc. Agrár.

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Corn is important in agriculture for its dual is uses as food and animal feed. The use of quality seeds is fundamental for outcomes in the field. The treatment of seeds with molybdenum may increase the productive capacity and uniformity of the corn. For this to work, the amount applied to the seeds must be adequate to promote development and increase the final crop production. Thus, the objective of this work was to verify the effects of molybdenum and potassium application on the germination and vigor of corn seeds. The physiological quality of the seeds was evaluated by germination, first count, seedling length (shoot and root), seedling dry matter mass, emergence, and the cold test. Six treatments (T1–T6) were performed, with T1 free of molybdenum and potassium and the others with varying dosages. The seeds were treated with a commercial product that containing molybdenum and potassium. The design was completely randomized, with four replications and six treatments. Smaller doses of molybdenum resulted in a higher percentage of normal seedlings. Based on the length and dry mass of the seedlings, it was verified that maize seeds were negatively impacted by increasing doses of molybdenum and potassium. In the emergence tests in sand, treatments T5 and T6 presented a greater number of seedlings. The physiological quality of corn seeds was not significantly influenced by the application of molybdenum and potassium in the first count and germination results in the cold and germination tests.

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Qualidade de sementes de feijão-caupi tratadas com produtos químicos e armazenadas em condições controladas e não controladas de temperatura e umidade

Cited by 11 publications

References 4 publications

PHYSIOLOGICAL QUALITY OF Brachiaria brizantha SEEDS TREATED WITH FUNGICIDE AND INSECTICIDE

PHYSIOLOGICAL QUALITY OF Brachiaria brizantha SEEDS TREATED WITH FUNGICIDE AND INSECTICIDE

Late harvest and chemical treatment of cowpea seeds

Physiological potential of corn seeds treated with different dosages of molybdenum and potassium

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