The goal of this paper was to verify the influence of two water regimes on the phytotechnical, production, and agroindustrial indicators in three varieties of sugarcane. The experiment was conducted at the Experimental Farm of the State University of Montes Claros - Unimontes, with design of randomized blocks in a split plot scheme. The treatments were two water regimes (irrigated and non-irrigated) and three sugarcane varieties (RB 72-454, SP 79-1011 e SP 80-1842) randomly distributed in four blocks. The phytotechnical and production variables analyzed were plant height, stalk diameter and shoot biomass yield, and the agroindustrial variables were soluble solid and fiber content. Data were subjected to analysis of variance with application of Ftest and the means were compared among themselves by Tukey test. At conditions which the experiment was realized, the plant height, the shoot biomass yield, the soluble solids and fiber content were efficient indicators for the selection of sugarcane varieties to tolerance to water deficit. Among the indicators studied, only the stalk diameter did not respond to soil water availability. Among the varieties, only SP 79-1011 showed indifferent to water availability on the shoot biomass yield.

The aim of this paper was to evaluate the biological aspects of Plutella xylostella and Trichogramma pretiosum in eggs of the F2 generation of P. xylostella under the influence of Bacillus thuringiensis in laboratory conditions. The experiment was conducted in the Laboratório de Biologia and Criação de Insetos of Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal - UNESP reen collars contaminated with strains and commercial product based on B. thuringiensis in the laboratory. The eggs obtained from the F2 generation of P. xylostella evaluated the biological parameters of T. pretiosum. It was observed that some biological characteristics of P. xylostella showed changes by the treatment with B. thuringiensis. The viability of the larvae and pupae stages, pupae weight were the biological parameters more influenced by treatments, with values significantly reduced when compared to control. However, the larvae length and pupae stages and sex ratio were similar in all treatments, with no significant biological variations. Thus, this bacterium isolated from this behavior may provide greater exposure of larvae to other natural enemies as well as generation of adults less viable, which makes them potential programs in pest control, since the interaction of the methods of control is one of the main ways to enhance the biological control of insect pests. It was observed sublethal effects on P. xylostella biology, and B. thuringiensis negative influence on the parasitism capacity and emergency of T. pretiosum.

The paper aimed to evaluate the allelopathic potential of Jurema (Mimosa tenuiflora (Willd.) Poir.) on seed germination and seedling growth of lettuce. The study consisted of two experiments, each arranged in a completely randomized design with five treatments and four replications of 20 seeds: 1) stem bark extract of M. tenuiflora obtained in hot water (100 °C) and at concentrations of 0%, 25%, 50%, 75% and 100% of standard extract, 2) stem bark extract of M. tenuiflora obtained in cold water and the same concentrations. The extract was obtained by standard 50 g of bark in 500 mL of distilled water. We evaluated the germination percentage (G), germination speed index (GSI), percentage of normal seedlings (NP) and abnormal (PA), shoot length (CPA) and root (CR) in lettuce seedlings. All extracts were analyzed for pH and conductivity. The germination of lettuce was high (> 97%) and no significant difference between means of G and IVG in different concentrations of the extract pattern. No allelopathic activity of M. tenuiflora on the germination of lettuceseeds. The hot extract cause greater percentage of abnormal seedlings in lettuce. The aqueous extracts of bark of M. tenuiflora have phytotoxic effects on seedling growth of lettuce, and in higher concentrations drastically affect the length of the root and shoot.

The aim of this paper was to assess the hygiene and sanitary profile of sun-dried meat sell points in the county of Cruz das Almas, Bahia. Four supermarkets, three food stores, two marketplace stallsand three butcher shops were researched, from December 2009 to January 2010. Data were collected by visiting, observing and the use of a checklist. From the places visited, only the supermarkets reached most of the evaluated parameters. In 50% of the sell points no refrigeration was used, and in 100% of them, the sun-dried meat was not packaged. In 75% of the establishments there was no exclusive knife to cut sun-dried meat, and in 25% of them food and money were handled simultaneously. Aprons, hairnets and clean closed-toe shoes were used in 25% of the sell points. No proper hand washing and others inadequate habits, such as chatting while handling and commercializing the product were in all the establishments. The sun-dried meat commercialized in the county does not comply with the Brazilian legislation, thus affecting food quality and putting at risk consumers' health, being necessary actions to qualify the workers involved in the handling of this food, as well a higher intervention of the responsible sanitary authority.

The aim was to evaluate the effect of late application of different nitrogen levels in different cultivars. The experimental design was a block design with four replications in a factorial 3 x 5 compounds by combining three soybean varieties: Conquest (early season), Pioneer 98C81 (medium cycle) and M-Soy 9350 (late maturity) and five nitrogen rates: zero, 20, 40, 80 and 160 kg ha-1 applied at growth stage R.1 (early flowering), using urea as nitrogen source. The application of 20 and 40 kg N ha-1 provided an increase in the number of pods per plant in all cultivars. Effect on thousand seed weight in cultivar checked only for conquest, with the application of 20 and 40 kg ha-1 N. Yield was reduced with application of 80 and 160 kg N ha-1 and increased with the application of 20 and 40 kg ha-1 N. There was a similar behavior among cultivars for yield components and yield when subjected to nitrogen in a late period. Although it was observed an increase in production around 300 kg ha-1, is still not economically viable application of nitrogen in soybean.

Seed treatment with insecticides is a routine practice that helps control initial field pests. However there is little information on the effects of insecticides on physiological quality of soybean seeds. Thus, this paper was to evaluate the effect of seed treatment with insecticides on the germination and vigor of soybean seeds. The design was completely randomized consisting of 7 treatments with 4 repetitions. The seeds of the cv. M-soy-6101 were treated with the insecticide thiamethoxam on the rate of 0.15 kg of a.i./100 kg of seeds, fipronil in the rate of 0.37 kg of a.i./100 kg of seeds, imidacloprido in the rate of 0,10 kg of a.i./100 kg of seeds; [thiodicarb + imidacloprid] at a rates of 0.14 + 0.13 kg of a.i./ha-1, carbofuran of rate 0.52 kg of a.i./100 kg of seeds, acephate at a rate of 0.75 kg of i.a./100 kg of seeds and a control without treatment. The variables analyzed were: germination, emergence speed, root length and seedling and percentage of normal seedlings in the accelerated aging. In the greenhouse (pot of 6 dm-3 of soil) were obtained levels of phytotoxicity, height and dry mass of shoots. Treatment with insecticides thiamethoxam, fipronil and imidacloprid provides adequate quality of the seeds and do not negatively affect the early development of plants. Insecticides [imidacloprid + thiodicarb], acephate and carbofuran affect the germination and vigor of soybean seeds.

Studies on the floristic diversity including climbers and also research directed to survey of these species are rare in Northeastern Brazil. With the aim of contributing to the knowledge of this component in the Northeast region and provide data on the flora of Rio Grande do Norte, a floristic study was carried out in a fragment of the Semideciduous Seasonal Forest in the municipality of Parnamirim and an identification key was created for the species. 20 species were registered belonging to 19 genera and 11 families. Eight of these species are new records for the state. The richest families in species were Fabaceae (05), Dilleniaceae (03), Bignoniaceae (02), Convolvulaceae (02) and Passifloraceae (02). The sum of the representatives of these families corresponded to 60% of the total number of species recorded. Comparative analysis suggests that studies be conducted focusing the diversity of climbing in northeastern Brazil, especially because these indicate the state of conservation of forests.

To study plant growth and yield of cauliflower, two field trials were carried out: the first springsummer (Oct. 07, 2006 to Jan. 28, 2007) and the second autumn-winter (Apr. 04, 2007 to Jul. 09, 2007). The experimental design was randomized complete blocks in 4 x 4 factorial design with three replications. The following factors: line spacing (0.6, 0.8, 1.0 and 1.2 m) and plant spacing (0.4, 0.5, 0.6 and 0.7 m). The used cultivar was cv. Verona 284. The characteristics, number of leaves by plant, diameter of stem, diameter of inflorescence, inflorescence mass and yield were evaluated. With the reduction in spacing, were observed lower numbers of leaves, stem diameter, diameter and mass of the inflorescence, but there was an increase in yield. The maximum yield (23 t ha-1) was obtained with 0.6 x 0.4 m, ie, in higher plant population (41,667, plants ha-1).

This paper aims to investigate the susceptibility of Coackroach Suriname (Pycnoscelus surinamensis) to entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana, and vegetable products. The first phase of the research aimed to study the biological cycle of the insect. The second step was using bioassays in the laboratory using eight commercial products at different doses and each with three replicates being made three applications at weekly intervals. 10 cockroaches were placed in each container and kept in this chamber at 25 °C and U.R. of 70%. The treatments were: Beauveria bassiana (Bals.) Vuill (Boveril® B102), B. bassiana (Bovenat®), Metarhizium anisopliae (Metsch.) Sorok (Metarril® M102); M. anisopliae (Metanat®), all doses of 1, 2, 3 and 5 kg ha-1; azadirachtin (Natuneem®), neem oil + pepper extract (Nim-I-Go®), neem + timbó + citronella + fedegoso + geranium + organic acids (Compostonat®), rotenone (Rotenat®), all at concentrations of 0.5, 1.0, 2.0, 3.0 and 5.0%, and control (distilled water). The Compostonat® at a dose of 5% was 100% effective in controlling the 1st application and also excelled on the lowest dose applied, reaching 83.33% efficiency in the 3rd application at a dose of 0.5%. We observed five instars: the first lasts an average of 18 days, the second 22, third 36, fourth and fifth in 45 days 63 days on average. Reproduce between 45 and 60 days after adult average of 25 nymphs per ootheca and average adult length of 24 mm.

The cowpea (Vigna unguiculata (L.) Walp.) is one of the most cultivated leguminous in the world. In spite of being a very studied species, there are theoretical models for the development for different habits of culture. The concept of thermal time, replacing the chronological time, has been used frequently, with the advantage to be independent of location and time of sowing. Considering the relevance of the activity for the State of Piauí, this work had the purpose of describing fenology of the variety BR 17 - Gurguéia, relating the number of day-degrees necessary to the development of each fenological state. An experiment was realized in the Departamento de Fitotecnia of Centro de Ciências Agrárias of Universidade Federal do Píauí, Teresina- Piauí. It was found that the number of vegetative stages is indefinite and that the variety shows at least six reproductive stages. The vegetative stage V1 (2º in the main branch with leaflets fully open) was the longest and from the stadium V10 (11º in the main branch with leaflets fully open) was overlap of vegetative and reproductive stages. The cultivar BR 17 - Gurguéia in rainfed crop, requires 818.2 degree-days from sowing until the early reproductive stage and 1103.5 degree days from planting to the end of the reproductive cycle, with wide adaptability for the State of Piauí; the cultivar BR 17 - Gurguéia presents six reproductive stages, LV the stadium is the longest among the vegetative and reproductive stages, individually, need a greater number of degree- days that the vegetation