Caracterização fitossanitária e seleção de limeiras ácidas 'Tahiti' clone Quebra-galho candidatas a matrizes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Distribuição espacial e raio de agregação de cancro cítrico definidos por geoestatística

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização de escória de siderurgia na cultura da goiabeira

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

Disponibilização de metais ambientalmente impactantes em solo tratado com composto de resíduos sólidos urbanos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização de células tronco mesenquimais autólogas para o tratamento de éguas com endometrite crônica degenerativa

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

Avaliação de sistemas de produção e aplicação superficial de corretivos em plantio direto

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

Restauração ecológica de um solo decapitado sob intervenção antrópica há 17 anos

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

Recuperação de um subsolo de cerrado com cultivo de plantas nativa e introduzidas

Pós-graduação em Agronomia - FEIS

Aplicação de calcário e seus efeitos no sistema radicular, estado nutricional, produção e qualidade tecnológica de frutos de mangueiras

Pós-graduação em Agronomia - FEIS

Desenvolvimento de um sistema de incineração de resíduos sólidos para utilização com combustão pulsante

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

Expressão gênica diferencial de laranja Pêra Rio (Citrus sinensis (L.) Osbeck) e Lima Ácida 'Galego' (Citrus aurantifolia Swingle) em resposta à infecção por Xanthomonas citri subsp. citri

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

Calagem, adubação e nutrição mineral de Anonáceas

Among the edaphic factors, those related to acidity are the ones that affect productivity, especially in tropical regions. For culture the Annonaceae, no research results that indicate the proper base saturation, nor the determination of doses, times, application methods and sources of nutrients for orchards Annonaceae in training and production in order to promote sustainability and higher yields. Given the importance and potential of commercial exploitation of Annonaceae in Brazil and, considering the limited available scientific information on liming, fertilization and nutrition of fruit plants of this family, some research has to be carried out urgently due to the effects of nutrients on productivity, fruit quality, post-harvest, tolerance to pests and diseases, etc.

Controle de doenças fúngicas e de danos por frio em pós-colheita de lima ácida Tahiti

The Tahiti lime appears very susceptible to attack by post-harvest diseases, primarily by the fungi Penicillium and Phomopsis, and also because of its high sensitivity to storage at low temperatures. In order to reduce such damage, the present study aimed to verify the efficiency of heat treatment and disinfection of pathogens in the prevention of post-harvest chilling injury of this cultivar and to compare this treatment with other products using the conventional fungicides. The heat treatments were studied with hot-water temperatures ranging between 48 and 56° C. Water at room temperature was used as a control treatment. After treatment, the fruits were kept under cold temperature at 10° C and RH 90% for about 45 days. For comparison, three other treatments were carried out simultaneously, one using imazalil, one with baking soda, and a third with sodium carbonate, these three products being applied by baths in cold water. Two groups of fruit were evaluated, one treated by immersion considering pathogens coming from the field and another by inoculation with spores of the previously isolated pathogens. For the evaluation of physical and chemical parameters of fruits, determinations were made of the skin color, texture, weight loss, size, juice yield, soluble solids, total acidity and vitamin C content. The determination of the sensitivity of the fruit to cold was made by their exposure at temperatures inducing cold damage. The design was a randomized block design with nine treatments, analyzed by the Statgraphics statistical package. Heat treatments, especially at 52° C, were shown to be more promising in the control of pathogenic fungi and cold damage, surpassing the conventional fungicides. No changes were found in the intrinsic and extrinsic parameters in relation to the application of the different treatments.

Effect of steam thermal treatment on the drying process of Eucalyptus dunnii variables

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

Nutritional balance and yield for green manure orange trees

Intercropping could efficiently prevent soil nutrient losses caused by extensive agriculture. The present study aimed to assess the effect of green manure on the nutritional status of orange trees cultivar 'Pera' (Citrus sinensis (L.) Osbeck). The plants were grafted on 'Cravo' lime trees and were then planted in a 7x4m space. Four different treatments corresponding to the evaluated green manures were employed: jack bean (JB) (Canavalia ensiformis DC), lablab (LL) (Dolichos lablab L.), pigeon pea (PP) (Cajanus cajan L. Millsp), and Brachiaria (BQ) (Brachiaria brizantha Hochst ex A. Rich. Stapf) as control. The experimental design was in randomized blocks, in split-plot time, with six replicates, with four treatments (green manures) and two plants per evaluation. The nutritional status was assessed by using the DRIS method (Diagnosis and Recommendation Integrated System); the yield and the macro and micronutrient levels contained in green manures and in the control was also determined. The nutritional diagnosis indicated that, in the two years of experiment, plants treated with green manure showed better nutritional balance index compared to Brachiaria. This suggests that, over time, green manure can lead to better nutritional balance. Pigeon pea treatment showed the highest yields, compared to control, in the two evaluated crop cycles (2004/05 and 2005/06).