The evaluation of the effect of seed has been fundamental tool in the program of quality control, and the accelerated aging test, an important part of that process. Some authors report that the germination and vigor are associated with seed size and facing the lack of consensus for the use of this test methodology and the relationship of seed size on the physiological quality, this work aimed to adapt the existing methodology as the temperature and period of conditioning on the performance of two sizes of seed cotton. The seeds were classified into two meshes of sieves, and then subjected to tests of water content, germination and electrical conductivity. The experimental design was completely randomized, analyzed statistically in a factorial threefold. Seeds of different sizes, showed no difference in percentage of germination. Seeds subjected to 40 º C for 42h of conditioning showed better percentage of germination.

The study aimed to evaluate the effect of two doses of organic material in the nutrition of tomato (Lycopersicon esculentum), cv Santa Cruz, grown in pots in an Oxisol Ultisol Distrocoeso the municipality of Rio Largo - AL. The design was in randomized blocks in factorial 2 X 4 (two and four fertilizer doses) with 5 replicates. The experimental unit consisted of a vessel with capacity for 12 dm3 containing 15 kg of soil. The fertilizer materials were: 1 fertilizer - manure from corral + chicken manure + fertilizer and the filter cake of 2 - to corral manure + chicken manure + sugar cane bagasse, in doses 0, 5, 10 and 15 t ha-1. The applications were split in the following way: 10% at the time of transplantation, and 15% at 20, 34, 48, 62, 76 and 90 days after transplanting (DAT) in coverage. The seedlings were produced in the tomato seed, on March 10, 2008, in polystyrene trays with 128 cells, after transplantation and were selected for the vessel on April 02, 2008, leaving two plants per pot . The plants were conducted in mentoring and single stem, and where, therefore, all cultural and treatment plant. There was a collection of leaves 4 + from the apex of the plant, to assess nutritional status at the beginning of flowering. Among the nutrients, the nitrogen was absorbed the most, followed by: potassium, calcium, sulfur, magnesium and phosphorus, whereas among the micronutrients, in increasing order of absorption was the following: boron, zinc, copper, manganese and iron. According to analysis of variance and regression analysis of the fertilizer did not affect the levels of nutrients in the plant, with only difference between the doses.

The latent infections represent serious problems for exportation of the fruits. Nevertheless, the number of products registered for postharvest treatment of melon is reduced. In view of that, was evaluated the efficiency of three pesticides thiabendazole, azoxystrobin and imazalil utilized, in the commercial doses of 194g, 8g and 100g, a.i. /100 l, respectively, in storage conditions at ambient temperature in the control of faulness postharvest caused for Alternaria alternata. The effect of pesticides on the mycelial growth, sporulation and germination of the fungi was evaluated, as well as the efficiency of the pesticides in the control of the fungi in melons. After the immersion of fruits in the fungicidal solution, discs of 5mm of PDA medium with the fungi structures were inoculated. After, four fruits were put in each cartoon package and storaged for 36 hours in a humid chamber. After that, the fruits were taken out of the humid chamber and storaged at ambient temperature. The Imazalil has inhibited 100% of the mycelial growth and sporulation of A. alternata. Although the azoxystrobin only reduced 36% of the mycelial growth, when compared with the standard sample, it shows efficiency related to sporulation. The Thiabendazole was also efficient to reduce the mycelial growth. However, it had not the same efficiency related to sporulation. All pesticides researched were efficient in the control 'in vitro', but they did not show any efficiency in the control of fungi in fruits storaged at ambient temperature.

This work was carried out at Mossoró-RN, Brazil, to evaluate the effect of the increase of water irrigation salinity level on melon fruit quality. During two production cycles four irrigation water salinity levels were applied to the plots (S1 = 0.6, S2 = 1.9, S3 = 3.2 and S4 = 4.5 dS m-1), both continuously or being increased at different stages of development. This scheme resulted in 15 treatments arranged in an entirely randomized blocks design with four replications. Effects studied were the salinity levels, the stage of development in which they were applied, and storage time of fruits. Variables pulp fruit firmness, total soluble solids, fruit juice electrical conductivity (CEf), pH, and fruit weight loss were not affected by salinity levels, neither when used continuously nor when it was increased at different development stages. Water salinity levels did not affect fruit quality variables neither when analyzed on harvest day nor 35 days after harvest, except for CEf that, on harvest day, increased linearly with the increase in water salinity level.

It was studied vegetal remainders into four mountain areas: Serra de Bodopitá (Area1), Serra de Bodocongó (Area 2), Serra do Monte (Area 3) and Serra do Canoió (Area 4) located in paraiban Cariri. The study aimed at determines the phytossociolical parameters and for this was used the program Mata Nativa 2. It was also calculated the indexes of Shannon, Pielou equability, diversity of species and families. From the 2972 sampled individuals, 633 belonged to Area 1, 602 to Area 2, 908 to Area 3 and 829 to Area 4. All of them were distributed in 54 species belonged to 25 botanic families. It was observed that the families Fabaceae and Euphorbiaceae had the largest number of species and individuals and after them Cactaceae, Anacardiaceae and Apocynaceae. The Shannon indexes values in Areas 1, 2, 3 and 4 were respectively 2.65; 2.93; 2.35 e 2.59 nats.esp.-1 . The founded densities were 3165 individuals.ha-1 in Area 1, 3010 individuals.ha-1 in Area 2, 4540 individuals.ha-1 in Area 3 and 4145 individuals.ha-1 in Area 4. The four areas had the same species with the most importance values being them: Caesalpinia pyramidalis, Aspidosperma pyrifolium, Bauhinia cheilantha, Piptadenia stipulacea.

This study aimed to provide options of cerrado fruitful tree for neighborhoods to the outskirts of Goiânia, Brazil building up the level of satisfaction of the residents in relation to current local urban landscaping. The choice has been to work with fruit due to the large number of these species in the cerrado needing to preserve the existing genetic variability and protect the local flora. Data was collected through 100 questionnaires, from simple random sampling. It was observed that 53% of respondents were classified as partially satisfied with the landscaping where live, 27% dissatisfied, 10% satisfied, 7% and 3% very satisfied totally dissatisfied. Most people never planted fruit tree, however, 87% would like fruit were planted, indicating that the absence or disability of urban arborization is not a result of predation or popular unrest. It was found that 87%do not have allergies to plants, 8% said they do not know and 5% have allergies, and interesting to give preference to trees with restricted flowering period of a few months. It was found that 93% prefer shaded street, thus, it is suggested the use of species with bulky crown and removed from public lighting. It was observed that 68% did not know or had access to proper pruning procedure to be adopted. The species most appropriate are Centrolobium tomentosum, Cassia ferruginea, Pouteria ramiflora, Dimorphandra mollis, Pseudobombax longiflorum, Inga Alba, Curatella American, Hancornia sXXXpeciosa, Alibertia edulis, Erythrina speciosa, Kielmeyera coriácea, Caryocar brasiliense, Minosa laticífera and Bowdichia vigilioides.

The aim of this research was to verify the action of sodium hypochlorite (NaOCl) in the control of Erysiphe diffusa in soybean plants applied alone or mixed to a fungicide. NaOCl was applied eight times during crop cycle in parcels that received the product in concentrations of 0,2; 0,4 and 0,6%, applied alone, and applied with fungicide, in only two applications. There was a control parcel and a fungicide parcel for comparison. It was not observed statistical differences among treatments in the comparison of the development of the disease in the parcels treated with NaOCl alone, fungicide and NaOCl mixed to a fungicide. It is suggested that more research should be done with NaOCl to evaluate its potential for fungus control.

The melon, the main exportation product Potiguar, faces enormous phytosanitary problems in the phases of production and postharvest. The latent infections represent serious problems for exportation of the fruits. Nevertheless, the number of products registered for postharvest treatment of melon is reduced. In view of that, was evaluated the efficiency of three pesticides thiabendazole, azoxystrobin and imazalil utilized, in the commercial doses of 194g, 8g and 100g, a.i. /100 l, respectively, in storage conditions at ambient temperature in the control of faulness postharvest caused for Alternaria alternata. The effect of pesticides on the mycelial growth, sporulation and germination of the fungi was evaluated, as well as the efficiency of the pesticides in the control of the fungi in melons. After the immersion of fruits in the fungicidal solution, discs of 5mm of PDA medium with the fungi structures were inoculated. After, four fruits were put in each cartoon package and storaged for 36 hours in a humid chamber. After that, the fruits were taken out of the humid chamber and storaged at ambient temperature. The Imazalil has inhibited 100% of the mycelial growth and sporulation of A. alternata. Although the azoxystrobin only reduced 36% of the mycelial growth, when compared with the standard sample, it shows efficiency related tosporulation. The Thiabendazole was also efficient to reduce the mycelial growth. However, it had not the same efficiency related to sporulation. All pesticides researched were efficient in the control "in vitro", but they did not show any efficiency in the control of fungi in fruits storaged at ambient temperature.

It was evaluated banana weevil infestation in six varieties of banana, in the region of Inhambupe - Bahia, using itself of traps of the type "cheese". The biggest level of infestation occurred in the variety Great Naine, that was statistical significant, with 972 captured insects, average of 7,59 insects/traps. The other varieties presented low index of infestation. With exception of Tap Maeo.

The use of spontaneous species as green manure en the rocket production has been produce satisfactory results. The experiment was carried out at a greenhouse of Plant Science Department of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, in the period of 2008, with the objective of determing of different decomposition times of malva veludo rocket production. A completely randomized desings with six treatments and four replications. The treatments consist of: (7 days incorporated), T2 (incorporated 14 days); T3 (incorporated 21 days); T4 (incorporated 28 days); T5 (incorporated 35 days); T6 (fertilized soil). The evaluated traits were: plant height, number of leaves per pot, dry mass and yield. The time of decomposition of 14 days was what provided the best rocket production.