Avaliação de cargas difusas e simulação de autodepuração no Córrego da Água Branca, Itirapina (SP)

According to CONAMA Resolution No. 357, the Água Branca Creek is framed in Class 2 and along its course the characteristics should be consistent with this class. Evaluation of diffuse loads and simulation of auto-purification in the Água Branca Creek allowed evaluating the alterations in the quality of the freshwater. The major contribution of diffuse loads in the basin of the White Water Creek is related to agriculture. The QUAL2K modeling identified the autopurification zones at Água Branca Creek and indicated the necessity BDO removal of 75%.

Atividade inseticida e Modos de Ação de Extratos Vegetais Sobre Mosca Branca (Bemisia tabaci)

Insecticide potential and efficaciousness of vegetal extracts concentrations from six botanic families in three different modes were analyzed on the nymphs of the silverleaf whitefly Bemisia tabaci (Genn. 1889) on a tomato plantation Lycopersicon esculentum Mill. Nymph breeding was kept in cherry tomato shrubs. Test solutions were obtained from successive extractions with ethanol and evaporation in a rotary evaporator. Tests consisted of 10 solutions in four concentrations (500; 1,000; 1,500 and 3,000 μg/mL) and control treatment (distilled water + 1% DMSO) under three different modes of activity, namely, contact, translaminar and systemic. Experimental design was totally randomized with four repetitions and eleven treatments. Means were compared by Scott-Knott test at 5% probability and lethal concentrations (CL50) were calculated by POLO. In the case of contact activity mode, all extracts had efficiency above 50% with the highest concentration (3,000 μg/mL) in which the highest efficiency for all extracts tested was verified. There was a need for dose increase in translaminar activity mode for similar results, whereas in the case of systemic activity the best performance was obtained with extracts of Nerium oleander, Derris amazonica and Ipomoea carnea. Extracts of the last two caused a higher percentage when compared with that of other extracts in all activity modes lower than CL50.

Danos do complexo broca-podridão à produtividade e à qualidade da cana-de-açúcar fertirrigada com doses de nitrogênio

The objective of this work was to evaluate the effect of nitrogen-fertigation on the damage caused by the borer-rot complex to the productivity and quality of fertigated sugarcane. The experiment was carried out in field, using a randomized complete block design, with four replicates and five N doses (0, 50 100, 150, and 200 kg ha-1) applied through drip irrigation. The following variables were determined: number of holes caused by Diatraea saccharalis (Lepidoptera: Crambidae); number of internodes infected with red rot; incidence percentage of red rot; stalk productivity; and sugar content. In laboratory, the attractiveness and the consumption of culm fragments by fourth instar caterpillars, in trials with or without choice, were evaluated. Nitrogen fertigation increased the incidence of D. saccharalis and red rot. The number of holes produced by the larvae was correlated with the occurrence of red rot. Sugar percentage reduced with the increase in the number of red rot affected internodes. Nitrogen doses did not affect the attractiveness of sugarcane culm fragments; however, higher N doses increased the consumption of these fragments by D. saccharalis caterpillars. Despite the damages to quality, nitrogen fertilization expressively enhanced the productivity of stalks and sugar.

Revisitação de Bromeliaceae na APA Santuário ecológico da Pedra Branca Caldas, MG

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Anatomia comparada do lenho de raiz e caule de Lippia salviaefolia Cham. E Aegiphila sellowiana Cham.(Verbenaceae) de área de cerrado do Estado de São Paulo

Pós-graduação em Ciências Biológicas (Botânica) - IBB

Processo de adaptação do macaco- aranha-de-testa-branca (Ateles marginatus) ao cativeiro

Pós-graduação em Ciência Animal - FMVA

Anatomia do lenho e do carvão de espécies arbóreas do Cerrado no Estado de São Paulo, Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comunicação, cultura e mídia: o mito do Unhudo da Pedra Branca

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Educação ambiental em comunidades: um estudo na Prainha Branca, Guarujá-SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Comportamento de genótipos de cana-de-açúcar em relação ao complexo broca-podridão causado pela ação de Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) e microorganismos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Enxertia e podridão de raízes e colo em cucurbitáceas

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

O problema do financiamento: uma análise histórica sobre o crédito no complexo cafeeiro paulista. Casa Branca (1874-1914)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Variações estruturais do lenho de espécies de cerrado do estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Anatomia do lenho de caule e raiz de plantas jovens de Enterolobium contortisiliquum (VELL.) Morong (Fabaceae-mimosoideae) crescendo em diferentes condições edáficas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise da dinâmica plúvio-erosiva na bacia do Córrego da Água Branca (SP)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)