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

Ishizuka, Mariane Sayuri; Moraes, Maria Heloísa Duarte de; Chamma, Maria Helena Carmignani Pescarin; Pulcinelli, Carlos Eduardo; Menten, José Otávio Machado

doi:10.1590/1808-1657000352017

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…According to Ishizuca et al (2018), the presence of fungi negatively affects the sanitary quality of seeds, as well as hinders the quantification of their physiological quality, since the pathogens promote a reduction in germination power. According to , the occurrence of diseases is one of the factors that most affects agricultural production, where the seed treatment behaves as a valuable tool for integrated control of plant diseases.…”

Section: Mean Squares Of the Evaluated Variablesmentioning

confidence: 99%

Physiological and Sanitary Quality of Wheat Cultivars Seeds Subjected to Chemical and Biological Seed Treatments

Paraginski,

Toebe,

Kulczynski

et al. 2023

COLLOQ AGRARIAE

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Brazilian wheat farming is characterized by a high occurrence of seed-transmitted diseases that can cause significant damage to grain production. The objective of this study was to evaluate the influence of seed treatments on the physiological and sanitary quality of wheat cultivar seeds. Seeds from three commercial wheat cultivars (TBIO Sossego, TBIO Sinuelo, and TBIO Toruk) were used, along with four seed treatments (Control, Chemical, Biological, and Chemical + Biological). The physiological quality of the seeds was determined based on first germination count, germination percentage, quantification of abnormal seedlings, shoot and radicle length, whole seedling dry weight, and emergence velocity index (EVI). The sanitary quality was assessed using the Blotter test. Overall, the chemical treatment combined with the seeds of the TBIO Toruk cultivar provided better indices of physiological and sanitary quality.

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Section: Mean Squares Of the Evaluated Variablesmentioning

confidence: 99%

Physiological and Sanitary Quality of Wheat Cultivars Seeds Subjected to Chemical and Biological Seed Treatments

Paraginski,

Toebe,

Kulczynski

et al. 2023

COLLOQ AGRARIAE

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“…In a study with Nicotiana tabacum L. seeds, Ishizuka et al (2018) concluded that they can carry several fungi, especially Alternaria alternata, Fusarium verticillioides and F. pallidoroseum. They also showed that the species A. alternata causes damage to the physiological quality of the seeds, because it affects germination, resulting in the death of the seeds.…”

Section: Sanitary Qualitymentioning

confidence: 99%

Buckwheat seed quality and pathogenicity of Fusarium spp. in plants

et al. 2022

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Buckwheat is a species with great economic and production potential, which has gained increasing importance. This study aimed to determine the physical, physiological, and sanitary quality of samples from seed lots, and to evaluate the pathogenicity of Fusarium spp. in buckwheat plants. Physical and physiological quality was evaluated by the thousand-seed weight, moisture content, germination test (5th and 7th days), seedling length, and seedling dry mass, while sanitary quality was determined by the health test on filter paper, with the seeds subjected to asepsis and without asepsis. Isolates of Fusarium spp. were obtained from symptomatic seedlings in the paper roll germination test. To identify and characterize fungal isolates, morphological and molecular approaches were used. Pathogenicity was determined on healthy plants in a controlled environment. The lots showed high physiological quality in the germination evaluation (5th and 7th days). There was a high incidence of Fusarium spp. in all lots, which can be reduced with seed asepsis. The isolates were identified as Fusarium incarnatum-equiseti species complex, and were pathogenic to buckwheat plants.

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Effectiveness of ethanolic extract of Lippia palmeri Wats for the management of Fusarium spp. in chickpea sedes

et al. 2020

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Chickpea is a crop of world importance due to its nutritional value; however, seed and root diseases caused by Fusarium spp affect the harvest and for its control, synthetic fungicides are applied; nevertheless, natural products based on plant extracts may be an option for the sustainable management of this crop diseases. The objective of this research was to determine the in vitro and in vivo efficiency of the Lippia palmeri extract for the control of Fusarium oxysporum and F. solani in chickpea seeds. To PDA media, 500, 1000 and 2000 ppm from ethanolic extract of L. palmeri plus one agar disc of each pathogen, and the inhibition of mycelial growth was quantified. Chickpea seeds were submerged in each concentration of L. palmeri for 5 and 10 min, later, each seed was inoculated with F. oxysporum and F. solani and the disease incidence and germinated seeds were determined. The three concentrations of L. palmeri inhibited both phytopathogens in vitro. In the seeds, L. palmeri ethanolic extract decreased the incidence of F. solani and kept germination above 80%. For F.oxysporum only the highest dose of the ethanolic extract and the longest exposure time decreased the incidence by 20 % and germination was less than 25 %.The ethanolic extract of L. palmeri can be an option to decrease diseases caused by phytopathogenic funguses of the soil in chickpea seeds.

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

Cited by 3 publications

References 3 publications

Physiological and Sanitary Quality of Wheat Cultivars Seeds Subjected to Chemical and Biological Seed Treatments

Physiological and Sanitary Quality of Wheat Cultivars Seeds Subjected to Chemical and Biological Seed Treatments

Buckwheat seed quality and pathogenicity of Fusarium spp. in plants

Effectiveness of ethanolic extract of Lippia palmeri Wats for the management of Fusarium spp. in chickpea sedes

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