Uso da tomografia de ressonância magnética para diagnosticar os efeitos de injúrias mecânicas em goiabas 'Paluma' e 'Pedro Sato'.

bitstream/CNPDIA/10331/1/CT47_2002.pd

Fruit development of three guava cultivars (Psidium guajava L.).

The knowledge of guava fruiting cycle is of great interest not only due to its biological aspects but also as an important datum for the application of cultural practices. This paper was carried out in the submedio Sao Francisco region on four-year old plants, from the germplasm bank of EMBRAPA-CPATSA. The objective was to study the fruit growth pattern of the guava cultivars Patillo, Paluma and Red Selection of Florida. Fruit length and diameter were monitored on twenty-day intervals, resulting on double sigmoidal curves, and characterizing three growth periods, for the cultivars. The results showed that, within the experimental period, the cultivars Red Selection of FLorida and Paluma had about the same diameter and length growth rate, with a mean value of 0.036 cm/day and 0.042 cm/day, respectively. However ,the biggest fruit size was observed for the cv. Red Selection of Florida. The cv. Patillo had the lowest fruit growth rate, with an increment of 0.027 cm/day in diameter and 0.033 cm/day in lenght

Inibidor Da Ação Do Etileno Na Conservação Pós-colheita De Chrysanthemum Morifolium Ramat Cv. Dragon [inhibitor Of Ethylene Action In Postharvest Conservation Of Chrysanthemum Morifolium Ramat Cv. Dragon]

The durability and postharvest quality of cut flowers are fundamental attributes in value along the production chain and in consumer satisfaction. The objective of this study was to evaluate the effect of chemical inhibitors of ethylene action on maintaining the postharvest quality of chrysanthemum stems (Chrysanthemum morifolium Ramat cv. Dragon). The experiment tested maintenance solutions with silver thiosulfate (STS) under five levels (distilled water, a 0.2 mM STS, the STS 0.2 mM + sucrose at 50 g L-1, STS at 0.4 mM; STS at 0.4 mM + sucrose at 50 g L-1), and date of sampling, for three levels (0, 3, 6 days). Three replications with two flower stems in each treatment were used in the experiment. Physical assessments were made: color, fresh mass and relative water content; chemical evaluations: reducing sugars and pigments, and qualitative assessments: turgidity, flower color, and number of buds, open flowers and partially open flowers. Treatment with 0.2 mM STS resulted in better maintenance of fresh mass of stems. The concentration of pigments and reducing sugar was higher in those treatments in which sucrose was associated. The color and relative water content were favored in treatments STS 0.2 mM and 0.4 mM. The concentration of 0.2 mM STS obtained the best results, prolonging the vase life the stems. The quality of these stems was higher, with the best assessments of water content, color and turgidity.34511841190Almeida, E.F.A., de Paiva, P.D.O., de Lima, L.C.O., Resende, M.L., Fonseca, J., Tavares, T.S., Póscolheita de copo-de-leite: Efeito de diferentes Póscolheita de copo-de-leite: Efeito de diferentes conservantes comerciais e armazenamento a frio (2008) Ciência e Agrotecnologia, 32 (4), pp. 1189-1194. , Lavras, Jul./agoLavrasBarbosa, J.G., Tavares, A.R.R., Finger, F.L., de Leite, R.A., Vida de prateleira de minicrisântemos em vaso tratados com tiossulfato de prata (2005) Bragantia, 4, p. 64. , CampinasBorochov, A., Mayak, S., Broun, R., The involvement of water stress and ethylene in senescence of cut carnations flowers (1982) Journal of Experimental Botany, 33 (137), pp. 1202-1209. , LondonBurzo, I., Dobrescu, A., The exchange of substances between some cut flowers and solutions during vase life (1995) Acta Horticulturae, 405, pp. 101-107. , AmsterdamChantrachit, T., (1999) Postharvest Physiology of Red Ginger Inflorescence (Alpinia Purpurata (VIEILL) K. Schum, , Doctor of Philosophy in Horticulturae-University of Hawaii, Hawaii, 1999Finger, F.L., Carneiro, T.F., Barbosa, J.G., Senescência pós-colheita de inflorescências de esporinha (Consolida ajacis (2004) Pesquisa Agropecuária Brasileira, 39, pp. 533-537. , BrasíliaFrancis, F.J., Analysis of anthocyanins (1982) Anthocyanins As Food Colors, pp. 182-205. , MARKAKIS,P.(Ed.),New York: AcademicHalevy, A.H., Treatments to improve water balance of cut flowers (1976) Acta Horticulturae, 64, pp. 223-230. , AmsterdamHalevy, A.H., Mayak, S., Improved of cut flower quality opening and longevity by pre-shipment treatments (1974) Acta Horticulturae, 43, pp. 335-347. , AmsterdamHassan, F., Schmidt, G., Postharvest characteristics of cut carnations as the result of chemical treatments (2005) Acta Agronomica Hungarica, 52 (2), pp. 125-132. , Akadémiai KiadóHonda, S., Nishimura, Y., Takahashi, M., Chiba, H., Kakehi, K., A manual method for spectrophotometric determination of reducing carbohydrates with 2-cyanoacetaminde (1982) Annals of Chemistry, 119, pp. 194-199. , New YorkKramer, P.J., (1983) Water Relations of Plants, p. 489. , New York: AcademicLiao, L.J., Postharvest life of cut rose flowers as affected by silver thiosulphate and sucrose (2000) Botanical Bulletin of Academic Sinica, 41, pp. 299-303. , LondonMayak, S., Senescence of cut flowers (1987) HortScience, 22 (5), pp. 863-868. , AmsterdamColor control from feeling to instrumentation (1994) Precise Color Communication, p. 49. , MINOLTA, TokyoMoraes, P.J., Cecon, P.R., Finger, F.L., Barbosa, J.G., Alvares, V.S., Efeito da refrigeração e do condicionamento com sacarose sobre a longevidade de inflorescências de Strelitzia reginae Ait (1999) Revista Brasileira De Horticultura Ornamental, 5 (2), pp. 151-156. , CampinasNowak, J., Goszczynska, M.D., Rudnicki, R.M., Storage of cut flowers and ornamental plants: Present status and future prospects (1991) Research Institute of Pomology and Floriculture, 2 (4), pp. 255-260. , Postharvest News and InformationPaulin, A., Influence of exogenous sugar on the evolution of some senescence petals (1986) Acta Horticulturae, 181, pp. 183-193. , AmsterdamVenn, H., Effects of silver salts on the ethylene production and respiration of cut carnations (1979) Acta Horticulturae, 91, pp. 99-103. , Amsterda

Chemical composition of corn and sorghum grains cultivated in Oxisol with different application methods and doses of zinc.

In general, tropical soils present low concentrations of zinc (Zn), and the deficiency of Zn is recognized as a world nutritional problem for cereal production and human beings. Therefore, the main goal of this study was to assess the effects of different methods of Zn application on the quality of corn and sorghum grains grown in Oxisol. Two experiments were set up in the experimental area of UNESP (campus of Jaboticabal, Brazil). The following nine treatments were applied:three doses of Zn by banded application (seed furrows), three doses of Zn by incorporation into soil (0-20 cm depth), foliar application, seed application, and control (no Zn applied). The treatments were arranged in randomized blocks with four replicates. The contents of Zn, carbohydrates and proteins were determined for corn and sorghum grains. Regardless of the method, Zn application promoted higher contents of this micronutrient in corn and sorghum grains. The banded application method of Zn in soil promoted greater contents of total carbohydrates, starch and protein in both cultures. The incorporation of Zn into the soil method provided higher contents of soluble carbohydrates in both corn and sorghum grains

Aplicação de quitosana com glicerol na conservação de uvas sem sementes.

Este trabalho avaliou os efeitos da quitosana associada ao glicerol na conservação pós-colheita de uvas de mesa sem sementes mantidas sob condição de ambiente.Resumo expandido

STING Millennium: a web-based suite of programs for comprehensive and simultaneous analysis of protein structure and sequence.

Sting Millennium suite intrinsics. SMS organization. Sting Millennium Modes. Sting Millennium Modules. Millennium Features. Example of Sting Millennium Application.Na publicação: Paula R. Kuser

HLA-class I markers and multiple sclerosis susceptibility in the Italian population

Previous studies reported an association with multiple sclerosis (MS) of distinct HLA-class I markers, namely HLA-A*02, HLA-Cw*05 and MOG-142L. In this work, we tested the association with MS of A*02 and Cw*05 in 1273 Italian MS patients and 1075 matched controls, which were previously analyzed for MOG-142, and explored the relationship among these three markers in modulating MS risk. HLA-A*02 conferred a statistically robust MS protection (odds ratio, OR=0.61; 95% confidence intervals, CI=0.51–0.72, P<10−9), which was independent of DRB1*15 and of any other DRB1* allele and remained similar after accounting for the other two analyzed class I markers. Conversely, the protective effect we previously observed for MOG-142L was secondary to its linkage disequilibrium with A*02. Cw*05 was not associated considering the whole sample, but its presence significantly enhanced the protection in the HLA-A*02-positive group, independently of DRB1: the OR conferred by A*02 in Cw*05-positive individuals (0.22, 95% CI=0.13–0.38) was significantly lower than in Cw*05-negative individuals (0.69, 95% CI=0.58–0.83) with a significant (P=4.94 × 10−5) multiplicative interaction between the two markers. In the absence of A*02, Cw*05 behaved as a risk factor, particularly in combination with DRB1*03 (OR=3.89, P=0.0006), indicating that Cw*05 might be a marker of protective or risk haplotypes, respectively