Multiplication Rate
Mostrando 25-36 de 164 artigos, teses e dissertações.
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25. Desinfecção de explantes e cultivo in vitro de Piretro da Dalmácia (Chrysanthemum cinerariaefolium Vis. cv. Vacaria) / Pyrethrum (Chrysanthemum cinerariaefolium cv. Vacaria) explants disinfection and cultivation in vitro
The activities that involve floriculture have distinguished positively in the economic scenario of the Brazilian agribusiness. Among the plant species used for that purpose it can be distinguished the species belonging to the botanical family Asteraceae, mainly from the genus Chrysanthemum. The species C. cinerariaefolium Vis. is worldwide cultivated in orde
Publicado em: 2009
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26. Modelagem preditiva do crescimento/morte de Saccharomyces cerevisiae em co-cultura com Lactobacillus fermentum em mosto de caldo de cana-de-açucar / Predictive modeling growth/death of Saccharomyces cerevisiae in coculture with Lactobacillus fermentum in sugar cane must
In Brazil and other countries around the World, the sugar cane must fermentation for alcohol production is carried out without sterilization of the sugar cane juice, being an excellent medium for the multiplication of undesirable contaminants. Among the contaminants of sugar cane must, Lactobacillus fermentum can be considered one of the most relevant being
Publicado em: 2008
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27. Listeria monocytogenes in Fuyuand Rama Fortepersimmon (Diospyros kaki): incidence and growth / Listeria monocytogenes em caqui (Diospyros kaki) nas variedades Fuyue Rama Forte: incidência e crescimento
Brazil is among of the three biggest fruit producer in the world, with a production that is over 39 million tons, a relevant participation in the international market and an increasing participation in the domestic market. However, beyond quantity the quality and safety of food are issues equally demanded by consumers. It has been known that in natura produc
Publicado em: 2008
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28. Produção de mudas de bambu Guadua angustifolia Kunth (Poaceae) por propagação vegetativa. / Seedlings production of bamboo Guadua angustifolia Kunth (Poaceae) by vegetative propagation
The bamboo is a tropical, renewable, perennial culture of fast growth and with several uses. However, its use and research is moistly restricted to Asian countries. In Brazil the demand for bamboo has increased in the last years. From November 2005 to September 2006, experiments were carried out with the objective to evaluate the ability of Guadua angustifol
Publicado em: 2007
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29. Viabilidade polínica e propagação in vitro de Etlingera elatior (Jack) R.M. Smith
The Etlingera elatior is a tropical perennial and rhizomatous herbaceous plant that possesses beautiful flowers with different colors and a great ornamental appeal. To produce new cultivars it is necessary crossings between existing varieties which are rare for this species. Among the difficulties found to grow Etingera elatior is the acquisition of quality
Publicado em: 2007
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30. Características morfogênicas e estruturais e acúmulo de forragem do capim-tanzânia submetido a intensidades e freqüências de corte / Morpho-structural characteristics and forage accumulation of Tanzania grass subjected to different cutting intensities and frequencies
The experiment was conducted in an area of the Animal Science Department, at the Federal University of Viçosa - UFV, MG, from 17/12/2004 to 08/04/2005, with the objective of evaluating morpho-structural characteristics and forage accumulation of Panicum maximum cv. Tanzania under different cutting intensities and frequencies. Two heights (25 and 50 cm) and
Publicado em: 2007
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31. MULTIPLICAÇÃO IN VITRO DE MAMOEIRO TAINUNG 01
Experiments were accomplished in establishment and multiplication medium with the objective of evaluating the micropropagation of the papaya tree (Carica papaya L.) Hybrid Tainung 01 , generation F1, being used apical sections and apical sections of lateral buds of juvenile plants, cultivated in greenhouse. In the MS establishment medium, being used apical s
Publicado em: 2006
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32. Cytokinin in anatomical, cytological and physiological processes during in vitro culture and aclimatization of Annona glabra L. / Citocininas nos processos anatÃmicos, citolÃgicos e fisiolÃgicos durante o cultivo in vitro e aclimatizaÃÃo de Annona glabra L.
Annona glabra L. is one of the most important wild annonaceae with a high potential to produce fruits and pharmacological compounds. In vitro cultivation is a viable alternative for large scale production of plantlets of this species, overcoming the natural constraints for its propagation. However, its use in a broad form has been limited by the difficulty t
Publicado em: 2006
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33. TISSUE CULTURE AND b-ECDYSONE PRODUCTION OF Pfaffia glomerata AND Pfaffia tuberosa (AMARANTHACEAE) / CULTURA DE TECIDOS E PRODUÇÃO DE b-ECDISONA EM Pfaffia glomerata E Pfaffia tuberosa (AMARANTHACEAE)
Many biotechnological techniques have been formed by new tools to the study of medicinal plants and for the production of homogenous and productive biomass. This work aimed to examine aspects of morphogenesis and callogenesis in Pfaffia glomerata and Pfaffia tuberosa as well as to evaluate the production of -ecdysone in micropropagated plants, clones and cal
Publicado em: 2006
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34. Relationship between seasonality, hedging and carbohydrates on growth of eucalypts in the vegetative propagation by minicuttings. / Relação entre sazonalidade, desrama e carboidratos no crescimento do eucalipto na propagação vegetativa por miniestaquia.
The importance of the Eucalyptus in the current conjuncture of Brazilian forestry has stirred up significant investments in research, which has leaded to the development of the improved methods of vegetative propagation. The clonal propagation of Eucalyptus spp. allows the fast multiplication of selected genotypes, allowing high gains even with characteristi
Publicado em: 2003
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35. Effect of phosphate on the multiplication of Saccharomyces cerevisiae in continuous cultivation / Efeito de fosfato sôbre a multiplicação de Saccharomyces cerevisiae em cultivo contínuo
The influence of phosphate in a continuous culture was studied using mini-fermentor on the Saccharomyces cerevisiae multiplication. Dry matter, substrate concentration, specific substrate comsumption, specific carbon dioxide release, specific oxygen uptake rates and respiration quotient , as well as phosphorous content of the cells were measured in dependenc
Publicado em: 1983
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36. Serum factors modify the cellular requirement for Ca2+, K+, Mg2+, phosphate ions, and 2-oxocarboxylic acids for multiplication of normal human fibroblasts.
The rate of multiplication of a population of cultured human lung fibroblasts is determined by the level of common nutrients and serum factors in the medium. By application of the principles of Henri--Michaelis--Menten kinetic analysis to cell growth in vitro, the relationship between the level of a macromolecular fraction of serum that contains growth facto