Phosphite
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Potassium, calcium, and zinc phosphites on white mold control in soybean
ABSTRACT White mold, caused by Sclerotinia sclerotiorum, is one the most devastating disease on soybean worldwide. Considering the potential of phosphites to protect plants against different diseases, this study investigated the possibility of using potassium (K), calcium (Ca), and zinc (Zn) phosphites for white mold control in soybean. The contact effect of
Bragantia. Publicado em: 2020-09
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2. Fitossanidade e qualidade de mudas de Eucalyptus urophylla x Eucalyptus grandis em função da aplicação de fosfito e silício
RESUMO O setor florestal é um dos que mais contribui em termos sociais, econômicos e ambientais para o Brasil. Dentro deste setor, a eucaliptocultura pode ser apontada como a mais importante do segmento, com o plantio que representa 5,56 milhões de hectares. A primeira etapa do processo de implantação de florestas de eucaliptos é a produção de mudas,
Summa phytopathol.. Publicado em: 14/10/2019
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3. Evaluation of degradation of furanic polyamides synthesized with different solvents
Abstract Aromatic polyamides have properties of industrial relevance. However, the industrial and technological advancement has followed the trend of sustainability by seeking renewable source materials. In this work, polyamides were synthetized using 2,5-furandicarboxylic acid with p-phenylene diamine, triphenyl phosphite and two solvents (NMP and DMAc). To
Polímeros. Publicado em: 27/06/2019
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4. Avaliação do uso de elicitores de resistência bióticos e abióticos contra a antracnose na videira (Vitis labrusca L.)
RESUMO A antracnose da videira é uma doença causada pelo fungo Elsinoe ampelina sendo responsável por grandes danos na cultura. A proteção de plantas por meio da resistência induzida tem sido visualizada como uma importante medida de controle alternativo. Os elicitores de resistência estimulam uma série de reações no hospedeiro, para a produção d
Summa phytopathol.. Publicado em: 2019-03
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5. Birefringence, Photo luminous, Optical Limiting and Third Order Nonlinear Optical Properties of Glycinium Phosphite (GlP) Single Crystal: A potential Semi Organic Crystal for Laser and Photonics Applications
Glycinium Phosphite (GlP) has been synthesized and characterized successfully. The fluorescence spectrum of the compound showed one broad peak at 282 nm. Linear absorption value was calculated by Optical Limiting method. Birefringence study was carried out and the birefringence of the crystal is found to be depending on the wavelength in the entire visible r
Mat. Res.. Publicado em: 11/01/2018
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6. Silicon, acibenzolar-S-methyl and potassium phosphite in the control of brown spot in rice
ABSTRACT This study investigated the effects of silicon (Si), acibenzolar-S-methyl (ASM), and potassium phosphite (Phi) on the potentiation of rice resistance to infection by Bipolaris oryzae. The treatments included the soil amended with Si (1.25 g of calcium silicate per kg of soil), spraying of plants with ASM (500 mg∙L–1), Phi (5 mL∙L–1), and dis
Bragantia. Publicado em: 26/02/2016
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7. Avaliação de fontes, absorção foliar e translocação de zinco (68Zn) em laranjeiras / Sources evaluation, foliar uptake and zinc translocation (68Zn) in Orange
Studies of zinc fertilization on citrus foliar developed in Brazil are mostly limited to information of the nutrients quantities absorbed by the leaves, but the zinc transport of the leaves to other parts of the plants need to be clarified. Most investigations on this subject is vast array of conflicting results. As a result, the use of stable isotope techni
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2012
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8. Severidade da pinta preta em genótipos de tomateiro cereja e avaliação de fungicidas e produtos alternativos no crescimento micelial e germinação de Alternaria tomatophila
Among the fungal diseases that affect tomato, the black spot, caused by the fungus Alternaria tomatophila, is one of the most important of the crop. The use of resistant varieties and products that can induce resistance emerge as an option of low cost and less damage to the environment when compared to the use of agrochemicals. Thus, our objective with this
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/07/2011
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9. Ação de fungicidas e indutores de resistência no controle da requeima e pinta preta na cultura da batata / Fungicides and resistance inductors action in the control of late and early blight in potato crops
Late blight, caused by the oomycete Phytophthora infestans and early blight, caused by the fungus Alternaria solani, are among the most destructive diseases of potato crops in Brazil and worldwide. Considering the importance of the chemical control on integrated systems and the need for detailed knowledge of the performance of resistance inducers and fungici
Publicado em: 2011
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10. Absorção, eficiência de uso e partição do fósforo em plantas cítricas / Uptake, use and partitioning of phosphorous in citrus plants
The low phosphorus (P) availability is often a growth-limiting to a number of crops growing in Brazil, including citrus plants. Therefore, we expected that studies about P citrus nutrition could be useful to improve the management of these plants at low-P soils. Therefore, four experiments were carried out under greenhouse conditions. As strategy, acid phosp
Publicado em: 2010
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11. Comportamento em solução de P(OH)(OEt)2 e P(OH)3 coordenados a tetraaminas de Ru(II) / Behavior in solution of P(OH)(OEt)2 and P(OH)3 coordinated to ruthenium(II) tetraammines
The stability of the ligand diethyl phosphite was analyzed by 1H NMR in solution at pH 1.0 and 3.0 and 25°C in the presence and in the absence of the ion [RuII(H2O)(NH3)5]2+. The hydrolysis of the free diethyl phosphite in solution at pH 3.0 was not observed, while in the presence of the ion [RuII(H2O)(NH3)5]2+, at this same pH, the reaction took place w
Publicado em: 2010
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12. Phosphite on the growth, phosphate nutrition and aspects of the induction of resistance in maize. / Fosfito no crescimento, nutriÃÃo fosfatada e aspectos da induÃÃo de resistÃncia em milho
The present work was intended to evaluate the effect of supplying of phosphite on the growth, phosphate nutrition and aspects of the induction of resistance in maize. An experiment in a completely randomized design was conducted in nutrient solution under greenhouse conditions, where two concentrations of P (1.6 mg L-1 = low phosphorus and 20 mg L-1 = adequa
Publicado em: 2009