Harmful Plants
Mostrando 13-24 de 80 artigos, teses e dissertações.
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13. SUNFLOWER EMERGENCE AND INITIAL GROWTH IN SOIL WITH WATER EXCESS
ABSTRACT: Sunflower crops are grown in different regions worldwide. However, the stress caused by water excess in the soil impairs this crop growth and yield. The aim of the present study was to determine the response of sunflower plants to long periods of water excess during initial development stages. Water excess treatments were applied at the initial dev
Eng. Agríc.. Publicado em: 2017-08
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14. SODIUM PHYTOREMEDIATION BY GREEN MANURE GROWING IN SOIL IRRIGATED WITH WASTEWATER OF DAIRY INDUSTRY
ABSTRACT: Phytoremediation is a technique that uses plants to decontaminate soils containing harmful organic and inorganic elements. The aim of this study was to evaluate the potential of three species of forage green manure in phytoremediation of saline soil irrigated with treated effluent from dairy processing plant. The design used was randomized blocks (
Eng. Agríc.. Publicado em: 2017-08
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15. Physiological changes and in the carbohydrate content of sunflower plants submitted to sub-doses of glyphosate and trinexapac-ethyl
ABSTRACT The maturing of drift used in the culture of sugar cane can have harmful effects on other crops grown in the vicinity of sugar cane plantations. Among these, sunflower grown in the off-season can have its growth and productivity affected by drift. The objective of this research was to evaluate whether the drift of trinexapac-ethyl and glyphosate pro
Bragantia. Publicado em: 30/01/2017
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16. Medicinal plants traded in the open-air markets in the State of Rio de Janeiro, Brazil: an overview on their botanical diversity and toxicological potential
Medicinal plants have been used for many years and are the source of new active substances and new drugs of pharmaceutical interest. The popular knowledge contained in the open-air markets is studied through urban ethnobotany, and is a good source of information for ethnobotanical research. In this context, we surveyed the literature on works concerning open
Rev. bras. farmacogn.. Publicado em: 2014-04
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17. Prevalence of rhinitis symptoms among textile industry workers exposed to cotton dust
INTRODUCTION: The respiratory tract is one of the main points of entry of foreign substances into the body. Because of its location, the respiratory tract is heavily exposed to harmful agents, such as gases, vapors, or aerosols. AIM: Our objective was to evaluate the symptoms of occupational rhinitis in workers exposed to cotton dust. METHOD: The prospective
Int. Arch. Otorhinolaryngol.. Publicado em: 2013-03
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18. Physiological limitations in two sugarcane varieties under water suppression and after recovering
Increasing water scarcity and depleted water productivity in irrigated soils are inducing farmers to adopt improved varieties, such as those with high-capacity tolerance. The use of tolerant varieties of sugarcane might substantially avoid the decline of productivity under water deficit. This research aimed to evaluate the harmful effects of drought on the p
Theor. Exp. Plant Physiol.. Publicado em: 2013
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19. Purification of trypsin inhibitor from seeds of Cicer arietinum (L.) and its insecticidal potential against Helicoverpa armigera (Hübner)
Trypsin inhibitors (TI) have crucial functions in plant defense against pests, and recent studies reveal their diversity in stress response. Disease and herbivore infestations are harmful to plant growth, but the response of TI in Cicer arietinum (L.) in Central India has been less studied. In the present study, we partially characterized the TI from Cicer a
Theor. Exp. Plant Physiol.. Publicado em: 2013
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20. Monitoramento ambiental de zinco em produtos agrícolas / Environmental monitoring of zinc in agricultural products
Large areas have been affected by heavy metals in concentrations which may pose environmental hazard. Due to increased industrial activity and highly technical agriculture, it becomes critical to monitor the levels of heavy metals in soil, because plants behave as a mechanism for transfer of contaminants from soil to higher levels of the food chain. Ingestio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/10/2012
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21. Alelopatia e bioprospecção em Rapanea ferruginea e Rapanea umbellata
Allelopathy is a process that involves primary or secondary metabolites produced by plants and microorganisms, which influences the growth and development of agricultural and biological systems. The intensity of plant allelopathic effects may depend on the hábitat, age and the biotic and abiotic conditions during the seasons in which they were collected. Wh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2011
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22. Analysis of antimicrobial, cytotoxic and mutagenic potencial of extracts and substances obteined of diferente species of Piper / Análise do potencial antimicrobiano, citotóxico e mutagênico de extratos e substâncias obtidas de diferentes espécies de Piper
The infectious diseases are now one of the major causes of death in all over the world. The appearance of emerging infectious diseases and the problem of microbial resistance has driven the research for new antimicrobial agents. A thousand of years the medicinal plants has been used by your properties of healing. From this utilization scientific studies has
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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23. Fotossíntese, crescimento e composição química em plantas de Theobroma cacao L. submetidas a diferentes concentrações de silicato de potássio e sua interação com insetos-praga / Photosynthesis, growth and chemical composition in plants of Theobroma cacao L. subjected to different concentrations of potassium silicate and its interaction with insect-pests
The control of insect pests through the use of pesticides, is still the most method used in the cultivation of cocoa. However, due to environmental issues, there need to seek new alternatives of control less harmful the environment and to humans. In this context, silicon is a nutrient that is being used in various cultures, due to its beneficial effects on p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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24. Are medicinal herbs safe? The opinion of plant vendors from Diadema (São Paulo, southeastern Brazil)
Medicinal plants (MP) have been used world-wide for the treatment or prevention of health conditions and due to their natural origin; they have been historically considered harmless. Semi-structured interviews were carried out with an intentional sample of twenty plant vendors in the city of Diadema to explore their knowledge and beliefs on the safety and ef
Revista Brasileira de Farmacognosia. Publicado em: 14/10/2011