Salinity is among the biggest challenges of irrigated agriculture, as it induces several limitations to the growth and physiology of plants; therefore, strategies should be sought that minimize its impacts on plants. In this scenario, the present study was developed to examine the effects of different salicylic acid (SA) application methods on photosynthetic pigments, chlorophyll a fluorescence, gas exchange, a...
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2020-11-17T16:48:47Z No. of bitstreams: 1 1990 - Francisco de Assis da Silva.pdf: 3729846 bytes, checksum: 6daf4b69868f1fbc84b7286942d5ce46 (MD5); Made available in DSpace on 2020-11-17T16:48:47Z (GMT). No. of bitstreams: 1 1990 - Francisco de Assis da Silva.pdf: 3729846 bytes, checksum: 6daf4b69868f1fbc84b7286942d5ce46 (MD5) Previous issue date: 1990-05...
Leishmaniasis are parasitic diseases, caused by protozoa of the genus Leishmania spp. Currently, Leishmaniasis is a neglected diseases, with half a million new cases and approximately 60,000 deaths per year worldwide. It is a disease that disproportionately affects the most needy population and is transmitted by sand flies. The geographic distribution and prevalence of these vectors in Brazil has been the subje...
Jatropha curcas L. is an oleaginous plant that presents high potential for biofuel production, but little is known about the cultivation techniques of this species, mainly in relation to the production of quality seedlings, which leads to high survival rates in the field. The objective of this work was to evaluate the performance of young Jatropha curcas plants cultivated in soils with different textures under ...
Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-04-20T17:36:27Z No. of bitstreams: 1 FranciscodeAssisdaSilvaFerreiraTese2016.pdf: 1490793 bytes, checksum: 723a3751c0bb7200af11e9383d4583c8 (MD5); Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-04-20T17:37:05Z (GMT) No. of bitstreams: 1 FranciscodeAssisdaSilvaFerreiraTese2016.pdf: 1490793 bytes, checksum: 723a3751c0bb7200af11...
Inspired by natural catalytic systems, metalloporphyrins and Salen complexes have been used as catalysts for the oxidation of xenobiotics in the presence of several oxygen donors, both in homogeneous and heterogeneous catalysis. These catalysts have been highly efficient and selective in the reactions of different substrates, such as pharmaceuticals and pesticides. In this context, the work developed in this di...
: O trabalho teve como objetivo avaliar o efeito da adubação verde, nítrica e aplicação de prolina na redução do estresse em melancia irrigada com água salina. O experimento foi realizado a campo, no município de São João do Rio do Peixe - Paraíba, no período de 14/07 a 16/09/2012, utilizando-se o híbrido de melancia ‘Quetsali’. Os tratamentos foram constituídos por duas doses de adubo verde utilizando-se Crota...
p. 960-965; Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-06-04T19:45:08Z No. of bitstreams: 1 (58)v21n6a03.pdf: 282076 bytes, checksum: ee6d05e2f10354264e727100f3bd1da7 (MD5); Made available in DSpace on 2012-06-04T19:45:08Z (GMT). No. of bitstreams: 1 (58)v21n6a03.pdf: 282076 bytes, checksum: ee6d05e2f10354264e727100f3bd1da7 (MD5) Previous issue date: 2010; The photoreactivity of the triplet excited ...