Glycaspis brimblecombei Moore, 1964 (Hemiptera: Psyllidae) on eucalyptus: oviposition non-preference and antibiosis

Forest plantations with Eucalyptus spp. (L'H,r) in Brazil are highly yielding. However, this activity is more and more threatened due to interactions with phytophagous insects, especially by exotic species, such as the red gum lerp psyllid Glycaspis brimblecombei Moore (Hemiptera: Psyllidae). This study aimed to evaluate the resistance in eucalyptus against the psyllid in oviposition and biological development assays, attempting to identify potential genotypes resistant to the pest for forest plantations. In addition, we tested the hypothesis of that concentration of total phenolics and lignin, and amount of epicuticular wax were associated with the expression of resistance. Results showed that there was variation in the levels of resistance among the genotypes assessed. Oviposition non-preference was observed on Eucalyptus citriodora (Hook) in free-choice and no-choice tests, and Clone FP10 was least preferred in the no-choice test. The genotypes E. citriodora and Clone FP6 provided 100 % nymphal mortality, and Clones FP7 and FP9 also affected negatively the G. brimblecombei development by lengthening the duration of the nymphal stage and reducing adult emergence. Clone FP6 had higher concentration of total phenolics and larger contact angle formed between the water droplet and leaf surface, which may be associated with thicker layer of epicuticular wax on the leaves, and one of the causes of high nymphal mortality. Thus, the use of the resistant genotypes of eucalyptus screened against G. brimblecombei is a promising and viable alternative for forest plantations infested with this pest.

Fenologia reprodutiva da pitaya vermelha em Jaboticabal, SP

The dragon fruit (Hylocereus undatus) is recent crop cultivation in Brazil and there is still lack of studies to support the farmers. So, this research aimed to characterize the reproductive phenology of the crop in the region of Jaboticabal, Sao Paulo State, Brazil. It was evaluated red dragon fruit clones over two environmental conditions - under plastic screen black and white, with 50% of shady level, from March 2009 to December 2010. It was observed that the issuance of floral buds and the flowering on dragon fruit culture occurs with a combination of high temperatures and rainfall, with constant emission of floral buds from November to March while the flowering on dragon fruit culture occurs until mid-April. The color of plastic screen had influenced on amount of flowers. The time elapsed since the issuance of flower buds to anthesis is from 18 to 23 days, while the harvest occurs from 34 to 43 days after flower opening. At Jaboticabal, the time of appearance of flower bud to fruit harvest is from 52 to 66 days.

Estimativas dos parâmetros genéticos para seleção de árvores de Eucalyptus

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Manejo da fertilização NK em plantio de eucalyptus urophylla em solo de cerrado

Pós-graduação em Agronomia - FEIS

Supressividade a Fusarium oxysporum f. sp. cubense por produtos orgânicos

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Dinâmica da fragmentação florestal e conflito de uso do solo ao longo da rede de drenagem do município de Lençóis Paulista - SP

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Modelo matemático aplicado na vaporização de toras de Eucalyptus grandis

O objetivo deste estudo é obter um modelo matemático logístico que representa a vaporização de toras de Eucalyptus grandis, em função do diâmetro e do tempo de permanência das toras no tratamento térmico a vapor. Para tanto, foram coletadas toras nas classes diamétricas de 25 a 40 cm de três árvores de E. grandis provenientes do Horto Florestal de Mandurí, SP. Em cada uma das toras foram inseridos três termopares, com profundidades distintas, 1/3 do raio; 2/3 do raio e o terceiro, próximo ao seu centro. Posteriormente, as toras foram vaporizadas a 85ºC e 100% de umidade relativa, até que o último termopar atingisse uma temperatura de 80ºC. Um Datalogger CR10 registrou as temperaturas, no interior do material, durante o tratamento térmico. Conclui-se que o modelo matemático logístico foi bem ajustado, obtido no tratamento térmico com vapor, levando em consideração as três classes de diâmetro e a profundidade máxima de 50 mm de raio, o modelo gerado, apresenta-se uma viabilidade técnica na aplicação do processo de aquecimento de toras com vapor, promovendo um consumo ideal de energia.

Geoprocessamento aplicado na influencia do uso e ocupação do solo na temperatura aparente da superfície do município de Botucatu (SP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Geoprocessamento aplicado na determinação das áreas de preservação permanente e áreas de conflito com cultivo agrícola no município de Lençóis Paulista/SP

The city of Lençóis Paulista has a great part of its agricultural land cultivated by sugar cane and reforestation of eucalyptus and pine trees. In the county there are industries that exploit energy extracted from energy cogeneration. The city of Lençóis Paulista, in recent years, has been demonstrating considerable levels of economic and social growth with the industries that are working with sugarcane and eucalyptus mainly responsible. However, the expansion of agricultural land in many cases does not take into consideration the permanent preservation areas that are protected by the law. The APP's are of fundamental importance in the management and conservation of the environment preserving the natural plants and wildlife, and also preventing erosion and the silting of drainage networks. This objective of this study was to diagnose land use, analyze if Permanent Preservation Areas are regulated to the Brazilian Forestry Code (1965) and also diagnose areas of conflict. In relation to the use and occupation of land, the research has shown how the land is divided (agricultural crops and urban zones), and highlighted areas of conflict with the Permanent Preservation Areas. All of the information is contained in maps using Geographic Information Systems. However, it has become clear that environmental laws are not respected as much in urban areas as they are in rural areas. The PPA's are virtually nonexistent, thus creating damage to the environment and local population.

Estudo das ilhas de calor no município de piratininga/sp, por meio de dados orbitais.

The massive urbanization and activities arising from the uncontrolled growth of urban areas, result in changes on the climate, making it unhealthy. One factor that contributes to poor quality of life due to this fact is the islands of heat that consists in the accumulation of surface heat and raises the temperature in the cities. The vegetation consists of urban greening, urban forests and green areas, have the function to minimize this effect. To reconcile these factors, collected data on surface temperature by satellite images, LANDSAT 5 captured on 18/12/2012 point 75 e 76, orbits 221, band 6 and on-site survey with thermo-hygrometer, possessed the data, crossing the conducted vegetative survey and provided a management vision to improve the microclimate of the city under study. The vegetation coverage at urban area directly affects the ambient temperature, improving the urban micro-climate. The different analyzed surface coverage also affects the apparent temperature. Among the studied ranks, the eucalyptus cultivation, native forest, urban area and solo exposed areas with greater vegetation cover have mild temperatures and improved microclimate.

Avaliação das áreas de conflito de uso em APP da microbacia do alto água fria, Bofete (SP)

The misuse of land by man and is causing serious problems to the environment, resulting in ecological imbalance and depletion of natural resources, especially when it comes to areas of permanent preservation, that ecosystems are essential for balance and water conservation importance . Conflicts of land use is a major cause of silting of rivers and water bodies, causing significant losses in soil and decaying natural water resources both in quantity and in quality. Within this scenario, the planning becomes essential for the control of environmental impacts to the environment factor. This study aimed to evaluate land use conflicts in permanent preservation areas of the stream Água Fria watershed, Bofete (SP) using Geographic Information System and satellite image of LANDSAT - 5 of 2010, scale 1:50000. The results show that 51.16% of the permanent preservation areas of the watershed are conflicting, especially for pasture (88.94%) and reforestation with eucalyptus (11.06%). The GIS IDRISI Selva and Cartalinx along with GIS techniques demonstrated speed and efficiency in identifying, measuring and editing maps of land use, preservation and ongoing conflicts in areas of permanent preservation.

Caracterização de conflitos de uso do solo em apps na bacia hidrográfica do córrego barra seca (pederneiras/sp)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Aplicação de polímero hidroretentor no desenvolvimento inicial de Eucalyptus grandis

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Aplicação de polímero hidroretentor no desenvolvimento inicial de Eucalyptus grandis

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

A FUNCTIONAL VARIANT OF HLA-DR1 DELINEATED BY T-LYMPHOCYTE CLONE REACTIVITY, PROTEIN CONFORMATION, AND GENOMIC RESTRICTION SITES

This research characterized a serologically indistinguishable form of HLA-DR1 that: (1) cannot stimulate some DR1-restricted or specific T-lymphocyte clones; (2) displays an unusual electrophoretic pattern on two dimensional gels; and (3) is marked by a polymorphic restriction site of the alpha gene. Inefficient stimulation of some DR1-restricted clones was a property of DR1$\sp{+}$ cells that shared HLA-B14 on the same haplotype and/or were carriers of 21-hydroxylase (21-OH) deficiency. Nonclassical 21-OH deficiency frequently demonstrates genetic linkage with HLA-B14;DR1 haplotypes and associates with duplications of C4B and one 21-OH gene. Cells having both stimulatory (DR1$\sb{\rm n}$) and nonstimulatory (DR1$\sb{\rm x}$) parental haplotypes did not mediate proliferation of these clones. However, heterozygous DR1$\sb{\rm x}$, 2 and DR1$\sb{\rm x}$, 7 cells were efficient stimulators of DR2 and DR7 specific clones, respectively, suggesting that a trans acting factor may modify DR1 alleles or products to yield a dominant DR1$\sb{\rm x}$ phenotype. Incompetent stimulator populations did not secrete an intercellular soluble or contact dependent suppressor factor nor did they express interleukin-2 receptors competing for T-cell growth factors. Two dimensional gel analysis of anti-DR immunoprecipitates revealed, in addition to normal DR$\alpha$ and DR$\beta$ chains, a 50kD species from DR1$\sb{\rm x}$ but not from the majority of DR1$\sb{\rm n}$ or non-DR1 cells. The 50kD structure was stable under reducing conditions in SDS and urea, had antigenic homology with DR, and dissociated after boiling into 34kD and 28kD peptide chains apparently identical with DR$\alpha$ and DR$\beta$ as shown by limited digest peptide maps. N-linked glycosylation and sialation of DRgp50 appeared to be unchanged from normal DR$\alpha$ and DR$\beta$. Bg1II digestion and $DR\alpha$ probing of DR1$\sb{\rm x}$ genomic DNA revealed a 4.5kb fragment while DR1$\sb{\rm n}$ DNA yielded 3.8 and 0.76kb fragments; all restriction sites mapped to the 3$\sp\prime$ untranslated region of $DR\alpha$. Collectively, these data suggest that DRgp50 represents a novel combinatorial association between constitutive chains of DR that may interfere with or compete for normal T cell receptor recognition of DR1 as both an alloantigen and restricting element. Furthermore, extensive chromosomal abnormalities previously mapped to the class III region of B14;DR1 haplotypes may extend into the adjacent class II region with consequent intrusion on immune function. ^