Plant Growth Substances
Mostrando 13-24 de 103 artigos, teses e dissertações.
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13. A simple procedure for the purification of active fractions in aqueous extracts of plants with allelopathic properties
Most studies conducted to test the allelopathic activity of plant parts have made use of water as solvent. However, the presence of polar, water-soluble substances, such as proteins and carbohydrates, tends to hamper the purification of active compounds. In this study, we present a simple purification procedure that separates the active fraction of the extra
Acta Bot. Bras.. Publicado em: 2013-03
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14. Chemical and technological evaluation of the Phyllanthus niruri aerial parts as a function of cultivation and harvesting conditions
Tea from Phyllanthus niruri L., Phyllanthaceae, aerial parts is commonly used by Brazilian folk medicine for its benefits on the treatment of genitourinary disorders, for what the polyphenolic compounds are mainly responsible. The yield of such compounds may be influenced by several variables related with the plant growth. The effects of planting periods and
Rev. bras. farmacogn.. Publicado em: 01/02/2013
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15. Plant physiology as affected by humified organic matter
Since the beginning of Human civilization, the soil organic matter has been used as plant growth promoter and/or regulator. Indeed, early in plant science history, even before the auxin concept has been established, the term "auximones" was coined to describe plant growth promoting humic acids derived from peat. Despite of this, until the end of the 20th cen
Theor. Exp. Plant Physiol.. Publicado em: 2013
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16. Uma abordagem neurofisiológica da acetilcolina em plantas de milho hidratadas e sob condições de estresse hídrico / A neurophysiological approach to acetylcholine in maize plants hydrated and under water stress conditions
The occurrence of action potential and neurotransmitters, the major components of animal nervous system, in plants, bacteria and fungi, shows the universality of signaling principles and information transmission in the way of chemical and electrical signals in all organisms. These study topics, along with plant intelligence and vesicular-based auxin transpor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/04/2012
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17. Adubação nitrogenada e inoculação com azospirillum brasilense em híbridos de milho / Nitrogen application and Azospirillum brasilense inoculation on maize hybrids
Maize is one of the worlds most important cultivated cereals; however, it presents great challenges for correct fertilization management. Its high nitrogen demand has been the major cause of excessive applications of synthetic nitrogen fertilizers in the crop. As a result, both environmental and economical problems have increased. Therefore, alternative meth
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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18. Conjoint effect of oil-seed cakes and Pseudomonas fluorescens on the growth of chickpea in relation to the management of plant-parasitic nematodes
Soil application of organics has been explored as an alternative means of organic management of plant-parasitic nematodes. Efficiency of different oil-seed cakes of neem (Azadirachta indica), castor (Ricinus communis), groundnut (Arachis hypogaea), linseed (Linum usitatissimum), sunflower (Helianthus annuus) and soybean (Glycine max) were evaluated in field
Braz. arch. biol. technol.. Publicado em: 2012-12
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19. Plant growth-promoting rhizobacteria (PGPR): their potential as antagonists and biocontrol agents
Bacteria that colonize plant roots and promote plant growth are referred to as plant growth-promoting rhizobacteria (PGPR). PGPR are highly diverse and in this review we focus on rhizobacteria as biocontrol agents. Their effects can occur via local antagonism to soil-borne pathogens or by induction of systemic resistance against pathogens throughout the enti
Genet. Mol. Biol.. Publicado em: 2012
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20. 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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21. Inducao floral do umbuzeiro.
2001
CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL,8.. Publicado em: 2011
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22. Floração da mangueira através do uso de reguladores de crescimento.
1999
Petrolina: Embrapa Semi-Árido. Publicado em: 2011
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23. Efeitos, doses e aplicacao do paclobutrazol em mangueira sob condicoes de alta temperatura do ar.
2000
CONGRESSO BRASILEIRO DE FRUTICULTURA. Publicado em: 2011
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24. Eficacia dos reguladores de crescimento Buprofesin e Pyriproxyfen sobre as fases imaturas da mosca branca na cultura do melao.
1999
ENCONTRO LATINO AMERICANO E DO CARIBE SOBRE MOSCAS BRANCAS E GEMINIVIRUS. Publicado em: 2011