Chlorophylls
Mostrando 13-24 de 142 artigos, teses e dissertações.
-
13. Chlorophyll and carbohydrates in Arachis pintoi plants under influence of water regimes and nitrogen fertilization
In this experiment the chlorophyll and carbohydrate contents of Arachis pintoi were evaluated to verify if the presence of nitrogen in the soil could contribute to the effectiveness of the establishment of this legume. The design was completely randomized, in a 4 × 4 factorial arrangement, with four N rates (0, 40, 80 and 120 kg ha-1) and four irrigation le
R. Bras. Zootec.. Publicado em: 2013-06
-
14. Finding new approaches to treat retinitis pigmentosa caused by mutations in the photoreceptor rhodopsin. / Em busca de novos métodos de tratamento para a retinose pigmentar causada por mutações na rodopsina.
Retinitis Pigmentosa (RP) is an inherited disease that progressively leads to blindness. More than 150 mutations associated with RP are known in rhodopsin, causing its misfolding. This thesis tested the hypothesis that small molecules can rescue folded rhodopsin and/or reduce photoreceptor cell death. RP mutations, N15S and P23H, revealed differences in char
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2012
-
15. Photosynthetic analyses of two native Atlantic Forest species in regenerative understory of eucalyptus plantation
Gas exchange, chlorophyll afluorescence, and photosynthetic pigments of Xylopia sericeaA. St.-Hil. and Siparuna guianensis Aubl. were evaluated during the rainy season and the dry season (2009-2010) in three understories with different ecological conditions (irradiance, water availability, and temperature) located in the União Biological Reserve (known as R
Braz. J. Plant Physiol.. Publicado em: 2012-06
-
16. Theoretical investigation of electronic excitation transfer between chlorophylls in light-harvesting antenna of photosystem ii using quantum computers
The excitation energy transfer between chlorophylls in major and minor antenna complexes of photosystem II (PSII) was investigated using quantum Fourier transforms. These transforms have an important role in the efficiency of quantum algorithms of quantum computers. The equation 2n=N was used to make the connection between excitation energy transfers using q
Quím. Nova. Publicado em: 2012
-
17. Relação entre o conteúdo de pigmentos foliares em algaroba (Prosopis juliflora) e sua capacidade de produzir frutos, na região semi-árida brasileira.
2002
Colombo: Embrapa Florestas. Publicado em: 2011
-
18. Respostas de pupunheiras (Bactris gasipaes Kunth) jovens ao alagamento.
O objetivo deste trabalho foi estudar os efeitos do encharcamento do solo sobre a condutância estomática, o conteúdo relativo de água, o teor de clorofila e a concentração de N, P, K e de açúcares solúveis nos tecidos das folhas, bulbos e raízes de pupunheiras (Bactris gasipaes Kunth) jovens. Plantas com seis meses de idade foram submetidas ao alag
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
19. Uso do clorofilômetro como indicador da necessidade de adubação nitrogenada em cobertura no feijoeiro.
A adubação nitrogenada é uma prática cultural normalmente utilizada pelos produtores de feijão. O objetivo deste trabalho foi avaliar o uso do clorofilômetro como instrumento indicador da necessidade de adubação nitrogenada em cobertura no feijoeiro, cultivado no inverno, irrigado por aspersão, pelo sistema pivô central. A primeira etapa, realizada
Pesquisa Agropecuária Brasileira. Publicado em: 2011
-
20. Clonagem, caracterização e expressão de genes envolvidos na síntese de compostos isoprenóides em Eucalyptus grandis
Isoprenoids are essential to all organisms and are the most structurally and functionally diverse group of plant metabolites. In plants, more than 30,000 compounds of this class were identified to date. All plants produce isoprenoids that can play essential roles as carotenoids, chlorophylls and plastoquinone (photosynthesis); ubiquinone (respiration); regul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
-
21. Potenciais hospedeiros alternativos para o fitoplasma e o espiroplasma, agentes do enfezamento do milho, e alterações bioquímicas em plantas infectadas pelo espiroplasma / Potencial hosts for maize mollicutes, agent of corn stunt, and biochemical changes in plants infected by the spiroplasma
The maize bushy stunt and corn stunt are relevant diseases caused, respectively, by a phytoplasma and a spiroplasma (Spiroplasma kunkelii). Both kinds of stunting were reported in Brazil in the beginning of the 1970´s and became economically important in the beginning of the 1980´s, with the adoption of new techniques for maize cultivation. Although this p
Publicado em: 2010
-
22. I. Heat stress in Triticum: kinetics of Ca and Mg accumulation
In heat stressed genotypes of Triticum aestivum L. (Sever and Golia) and Triticum turgidum subsp. durum (Acalou and TE 9306), chosen according to its genetic background diversity, Ca and Mg accumulations were correlated with its photosynthetic performance. It was found that with high temperatures the concentrations of Ca increased in the shoots, whereas the
Brazilian Journal of Plant Physiology. Publicado em: 2009
-
23. Morphological analysis and photosynthetic performance of improved papaya genotypes
Brazil is the largest world producer of papaya and the third largest exporter despite of only 1.5 to 2.0% of its production is exported. Such an underexplored exportation potential highlight the necessity for physiological studies on new cultivars and hybrids to verify their agronomic and commercial viability. Two Brazilian states, Bahia and Espirito Santo,
Brazilian Journal of Plant Physiology. Publicado em: 2009
-
24. Development of plants and physiological quality of seeds of rice (Oryza sativa L.) under various concentrations of cadmium / Desenvolvimento de plantas e qualidade fisiológica de sementes de arroz (Oryza satitva l.) submetidas a diversas concentrações de cádmio
The objective was to evaluate the growth and development of plants, as well as the physiological quality of seeds of rice (Oryza sativa L.) under various concentrations of cadmium seed, rice cultivar BR-IRGA 410 were grown in plastic pots containing soil and irrigated with increasing concentrations (0, 0.2, 0.4, 0.6 and 0.8 mM) of CdCl2. The harvests were ca
Publicado em: 2008