Efeito da semeadura a seco e tratamento de sementes na emergência, rendimento de grãos e outras características da soja [Glycine max (L.) Merrill]

Rezende, Pedro Milanez de; Machado, José da Cruz; Gris, Cristiane Fortes; Gomes, Leonardo; Botrel, Élberis Pereira

doi:10.1590/s1413-70542003000100009

Cited by 9 publications

(9 citation statements)

References 6 publications

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“…These results are consistent with those obtained by Rezende et al (2003) and Mertz et al (2009), where they observed positive effect of different treatments of soybean seeds with fungicides. The authors observed that the application of agrochemical fungicides led to higher values in the post-emergence development of soybean seedlings.…”

Section: Resultssupporting

confidence: 93%

Effect of the phytosanitary treatment of seeds on the initial growth of upland rice

et al. 2016

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The initial growth of plants is a crucial period in the development cycle of the different crops of agricultural interest. This phase is the target of attack by different pests that drastically reduce this growth. Commonly, chemical pesticides are used in order to control the attack, but little has been elucidated about the effect of their contact with the seed. Therefore, the work aimed to evaluate the effect of the phytosanitary treatment of seeds on the initial growth of upland Oryza sativa L. For such, four seed treatments were tested (T1 -no seed treatment, T2 -fipronil + pyraclostrobin + thiophanate-methyl, T3 -thiamethoxam + carbendazim, thiram and T4 -imidacloprid + thiodicarb) in six evaluation periods (28, 35, 42, 49, 56 and 63 days after emergence). The design was a randomized block. The variables determined were dry mass of root, dry mass of shoot, root length, plant height, leaf area and chlorophyll content. The use of chemical treatments in upland rice seeds yielded positive effects against all morphological variables studied, except chlorophyll content. The treatment consisting of fipronil + pyraclostrobin + thiophanate-methyl provided greater increase of the morphological variables. The chemical treatments in seeds corresponded to a differentiation in the post-emergence vegetative development of seedlings for the characteristics of dry mass of root, dry mass of shoot, root length, plant height and leaf area, promoting greater initial growth of the crop in this period.Additional keywords: fungicides; insecticides; Oryza sativa L.Resumo O crescimento inicial de plantas é período crucial no ciclo de desenvolvimento das diversas culturas de interesse agrícola. Essa fase é foco de ataque de distintas pragas que reduzem drasticamente esse crescimento. Comumente, defensivos químicos são utilizados com o objetivo de controlar o ataque, mas pouco se tem elucidado sobre o efeito do contato dos mesmos com a semente. De modo que o trabalho teve como objetivo avaliar o efeito do tratamento fitossanitário de sementes no crescimento inicial de Oryza sativa L. cultivadas em terras altas. Para tanto, foram testados quatro tratamentos de semente (T1 -ausência de tratamento de semente; T2 -fipronil + piraclostrobina + tiofanato-metílico; T3 -tiametoxam + carbendazim tiram, e T4 -imidacloprido + tiodicarbe) e seis períodos de avaliação (28; 35; 42; 49; 56 e 63 dias após a emergência). O delineamento utilizado foi o de blocos ao acaso. As variáveis determinadas foram massa seca da raiz, massa seca da parte aérea, comprimento da raiz, altura de planta, área foliar e índice de clorofila. O uso de tratamentos químicos nas sementes de arroz de sequeiro proporcionou efeitos positivos, frente a todas as variáveis morfológicas estudadas, exceto no índice de clorofila. O tratamento composto por fipronil + piraclostrobina + tiofanato-metílico proporcionou maior incremento das variáveis morfológicas. Os tratamentos químicos em sementes corresponderam a uma diferenciação no desenvolvimento vegetativo em pós-emergência ...

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Section: Resultssupporting

confidence: 93%

Effect of the phytosanitary treatment of seeds on the initial growth of upland rice

et al. 2016

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“…Para estatura de plantas avaliada aos 28 dias, não houve diferença estatística entre os tratamentos (Tabela 1), o que concorda com resultados obtidos por REZENDE et al (2003), avaliando o tratamento de sementes de soja com fungicidas.…”

Section: Resultsunclassified

“…Resultados similares foram observados por HENNING et al (1991), os quais também constataram o efeito benéfico do tratamento de sementes de soja com fungicidas químicos para o controle de fungos existentes na semente e no solo. REZENDE et al (2003) observaram que, nos casos em que foi realizado o tratamento de sementes com fungicidas químicos, o estande inicial desejado não foi comprometido, mesmo com a semeadura coincidindo com períodos de estiagem, o que concorda com os dados obtidos no presente trabalho. Entretanto, na ausência de tratamento de sementes, ocorreu decréscimo na emergência de plântulas, com comprometimento do estande inicial.…”

Section: Resultsunclassified

Bioprotetores e fungicidas químicos no tratamento de sementes de soja

2009

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“…Low quality seeds generally have the vigor and germination reduced; thereby yielding non-uniform crops, and crop fields with low plant population (Scheeren et al, 2010). According to Rezende et al (2003) the high productivity of a crop depends on the quality of the seeds used for the sowing, since the performance of these seeds is directly related to the historic of its production, of its processing, and of soil conditions on which such crop will be established.…”

Section: Introductionmentioning

confidence: 99%

Performance of soybean plants as function of seed size: II. Nutritional stress

Soares¹,

Oliveira²,

Soriano³

et al. 2013

J. Seed Sci.

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The high quality seed is an input with invaluable for obtaining soybean crops with higher yields; for it reflects the results of high investments in research of modern technologies, which will be converted into high productivity levels. Thus, the aim of this study was assessing performance of soybean seeds, sorted by size, and grown in soils with different phosphorus levels. To this, seeds of two soybean cultivars (MSoy 9144RR and MSoy 8527RR) were sorted with aid of circular screens with perforations of 5.5 mm and 7.5 mm in diameter. Sowing was carried out into plastic pots, with 3.0 dm³ substrate capacity each, containing a Red-Yellow Oxisol, fertilized with increasing phosphorus dosages (50, 100, 200, 300 and 400 mg. Kg-1), and performed under greenhouse environmental conditions. Seed size did not significantly influence the values obtained to the variables analyzed; however, to the larger seeds there was a trend of increase on these values. There was also a trend of increase on these values to all variables assessed when the dosages of phosphorus in the soil were increased.

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Efeito da semeadura a seco e tratamento de sementes na emergência, rendimento de grãos e outras características da soja [Glycine max (L.) Merrill]

Cited by 9 publications

References 6 publications

Effect of the phytosanitary treatment of seeds on the initial growth of upland rice

Effect of the phytosanitary treatment of seeds on the initial growth of upland rice

Bioprotetores e fungicidas químicos no tratamento de sementes de soja

Performance of soybean plants as function of seed size: II. Nutritional stress

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