Tratamento de sementes de canafístula via calor úmido

Lazarotto, Marília; Mezzomo, Ricardo; Maciel, Caciara Gonzatto; Bovolini, Marciéli Pitorini; Muniz, Marlove Fátima Brião

doi:10.4322/rca.2013.038

Cited by 8 publications

(7 citation statements)

References 9 publications

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“…The presence of pathogens can reduce the physiological quality of the seeds; the integration of tests for the health and physiological quality of the seeds is therefore recommended (LAZAROTTO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Thermotherapy in treating fennel seeds (Foeniculum vulgare Mill.): effects on health and physiological quality

Gama¹,

Neto²,

Bruno³

et al. 2014

Rev. Ciênc. Agron.

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Thermotherapy in treating fennel seeds (Foeniculum vulgareMillABSTRACT -Thermotherapy is a physical treatment consisting of the exposure of seeds to the action of heat over time. The aim was to assess the health and physiological quality of fennel seeds (Foeniculum vulgare Mill.), both freshly harvested and stored for three years, and submitted to thermotherapy. Two experiments were conducted. In the first, thermotherapy was carried out on freshly-harvested fennel seeds obtained under different cropping systems: T1 -Monocrop fennel treated with the insecticide, thiamethoxam; T2 -Monocrop fennel without the application of insecticide; T3 -Fennel intercropped with cotton and treated with insecticide; T4 -Intercropped fennel without the application of insecticide. In the second experiment, seeds were used which had been stored for three years and obtained from plants, both treated and untreated with insecticide. The seeds were exposed to dry heat for different periods (0, 3, 6, 9, 12 and 15 days) at 70 °C. The tests performed included: health, germination, first count, speed germination index, seedling length and dry weight. The cropping systems had no influence on the incidence of the fungus Alternaria sp. Stored fennel seeds coming from plants treated with insecticide, display better health and physiological quality. A period of 12 days of thermotherapy is effective in controlling the fungus Alternaria sp. without causing losses in the viability of the fennel seeds.Key words: Alternaria sp. Thiamethoxam. Vigour.RESUMO -A termoterapia é um tratamento físico, que consiste na exposição das sementes à ação do calor em combinação com o tempo. Objetivou-se avaliar a qualidade sanitária e fisiológica de sementes de erva-doce (Foeniculum vulgare Mill.), recém-colhidas e armazenadas por três anos, submetidas à termoterapia. Foram conduzidos dois experimentos: no primeiro, a termoterapia foi realizada com sementes de erva-doce recém-colhidas obtidas de diferentes sistemas de plantio: T1 -erva-doce solteira tratada com inseticida thiamethoxam; T2 -erva-doce solteira sem aplicação do inseticida; T3 -erva-doce consorciada com algodão e tratada com inseticida; T4 -erva-doce consorciada sem aplicação do inseticida. No segundo experimento utilizaram-se sementes armazenadas por três anos obtidas de plantas tratadas e não tratadas com inseticida. As sementes foram submetidas a diferentes tempos de exposição ao calor seco (0; 3; 6; 9, 12 e 15 dias) a 70 °C. Os testes realizados foram: sanidade, germinação, primeira contagem, índice de velocidade de germinação, comprimento e massa seca de plântulas. Os sistemas de plantio não influenciaram na incidência do fungo Alternaria sp. As sementes de erva-doce armazenadas, oriundas de plantas tratadas com inseticida, possuem maior qualidade sanitária e fisiológica. O período de 12 dias de termoterapia é eficiente no controle do fungo Alternaria sp. sem proporcionar perdas na viabilidade das sementes de erva-doce.Palavras-chave: Alternaria sp. Thiamethoxam. Vigor.

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Section: Introductionmentioning

confidence: 99%

Thermotherapy in treating fennel seeds (Foeniculum vulgare Mill.): effects on health and physiological quality

Gama¹,

Neto²,

Bruno³

et al. 2014

Rev. Ciênc. Agron.

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“…pathogens incidents in the oilseeds of jatropha (Jatropha curcas L.), confirming the results of the present work. Lazarotto et al (2013) verified that the thermotherapic treatments via humid heat (80 ºC for 0; 5; 10; 15 and 20 min) were not efficient to prevent the infestation of phytopathogens on the seeds of cassia fistula without affecting negatively its physiological quality. Nevertheless, Cunha et al (2017) concluded that the thermotherapy via humid heat at 60 ºC for until 18 min reduces the incidence of phytopathogens in squash seeds without damage in their physiological quality.…”

Section: Resultsmentioning

confidence: 82%

“…(Marchi et al, 2008), Spondias mombin (Spondias mombin L.) (Brito et al, 2008), canafistula (Peltophorum dubium Spreng.) (Lazarotto et al, 2013), cumaru (Amburana cearensis A.C. Smith) (Oliveira et al, 2011), beans (Phaseolus vulgaris L.) (Estefani, Miranda Filho, & Uesugi, 2007), castor oil plant (Ricinus communis L.) (Marroni et al, 2009), passion fruit (Passiflora suberosa L.) (Marostega et al, 2015), maize (Zea mays L.) (Coutinho et al, 2007), tomato (Solanum lycopersicum L.) Carmo et al (2004) Braga et al (2010), among others, without damage to the physiological quality, offering an alternative to the use of chemical products, commonly used in the seeds treatment. Oliveira et al (2011) highlight that this form of seeds treatment is viable for the pathogens control, without environmental damage, because it does not use pollutants and it does not emit residues.…”

Section: Introductionmentioning

confidence: 99%

Thermotherapy via Humid Heat for the Treatment of Safflower Seeds

Menegaes¹,

Nunes²,

Bellé³

et al. 2019

JAS

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The objectives of this work were to evaluate and adequate the method of thermotherapy via humid heat for the treatment of safflower seeds (Carthamus tinctorius L.) and, to verify its effect on the physiological and sanitary quality of seeds. The experiment was performed in the period from September to November, 2016 and from May to July, 2017, in entirely randomized design, arranged in 5 × 6 + 1 factorial scheme, with five temperatures: 25, 35, 45, 55 and 65 ºC and with six time periods: 5, 10, 15, 30, 45 and 60 min, plus the additional treatment (control), with eight repetitions. The seeds were packaged in glass of 500 mL and disposed in thermodigital water bath device with heated water according to the abovementioned factorial. We evaluated the degree of humidity of the seeds after thermotherapic treatments, the germination of normal seedlings, the emergence at field, the speed indexes of germination and emergence, the length and dry mass of seedlings and the sanity test. We observed that the treatment of seeds via humid heat thermotherapy was efficient in the control of phytopathogens, without damage to the physiological quality until 45 ºC. The treatment of 45 ºC for 15 min provided the greater reduction of the pathogens on the safflower seeds, incrementing its germinative potential and emergence at field.

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“…Taub. (Lazarotto et al, 2013) e Dimorphandra mollis Benth. (Honório et al, 2010) (Machado, 2000), sendo considerados danos irreversíveis que podem reduzir tanto a germinação (Coutinho et al, 2007) quanto o potencial de armazenamento das sementes (Marcos Filho, 2015).…”

Section: Resultsunclassified

Tratamento térmico úmido em sementes de Acacia mangium

Araújo¹,

Sousa²,

Alves³

et al. 2018

Rev. Ciênc. Agr.

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Acacia mangium Willd. é uma espécie arbórea, exótica, que possui potencial para exploração de produtos florestais madeireiros no Brasil. Como esta se propaga, principalmente, via sexuada torna-se relevante o tratamento fitossanitário das sementes destinadas à produção de mudas. Assim, este estudo objetivou avaliar os efeitos do tratamento térmico via calor úmido na qualidade sanitária e fisiológica de sementes de A. mangium. Para tanto, as sementes foram tratadas em água aquecida à temperatura de 70ºC durante os períodos de exposição de 0, 10, 15 e 20 minutos. Em seguida, as mesmas foram submetidas à análise sanitária e ao teste de germinação. Com base na análise sanitária os fungos dos gêneros Aspergillus sp., Penicillium sp., Pestalotia sp., Cladosporium sp., Alternaria sp., Fusarium sp. e Botrytis sp.estavam associados às sementes. O tratamento térmico com calor úmido à temperatura de 70°C durante 10 a 15 minutos de exposição superou a dormência e reduziu a ocorrência de fungos associados às sementes de A. mangium.

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Tratamento de sementes de canafístula via calor úmido

Cited by 8 publications

References 9 publications

Thermotherapy in treating fennel seeds (Foeniculum vulgare Mill.): effects on health and physiological quality

Thermotherapy in treating fennel seeds (Foeniculum vulgare Mill.): effects on health and physiological quality

Thermotherapy via Humid Heat for the Treatment of Safflower Seeds

Tratamento térmico úmido em sementes de Acacia mangium

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