The work was conducted in two environments of caatinga, occurring in the Moacir Lucena accomplished, Apodi - RN. 12 plots have been demarcated 10 x 20 m, randomly distributed in each environment, characterized as follows: Area I - managed area and Area II - area of legal reserve of Accomplished. In each plot were sampled all individuals with CAB ¿ 10 cm. In Area I were sampled 130 individuals, five families and eight species, while in Area II, 244 individuals, four families and seven species. The Mimosoideae and Boraginaceae families are highlighted by number of individuals. Caesalpinea bracteosa presented greater number of individuals in the environment I and Auxemma glazioviana the environment II. The environment I made highest diversity of the Shannon- Weaver (H'), 1,10. In the environment I Caesalpinea bracteosa and Auxemma glazioviana were the species that showed higher frequencies, densities and dominances relatives, index of importance and value of coverage. Auxemma glazioviana presented highest density, dominance, frequency, IVC and IVI in the environment II. In the environment I most individuals presented stem diameter of between 11 and 21 cm, while the environment II, less than 11 cm.

The effects of five levels of nitrogen (N) fertilization (0; 60; 120; 240 and 480 kg of N/ha) upon Buffel grass (Cenchrus ciliaris, L.) performance were evaluated. A completely random design with three replicates was used. Dry matter yield of aerial portion (DMYAP), dry matter yield of roots (DMYR), leaf/stem ratio (LSR), number of tillers (NT) and water use efficiency (WUE) were measured. The results showed a linear effect (P < 0.002) on DMYAP and DMYR and linear and quadratic effects (P < 0.02) on NT and WUE. LSR was not influenced by the nitrogen fertilization. Overall, it could be concluded that Buffel grass responded positively to nitrogen fertilization.

To evaluate the effects of fiber level and source in diets on the intestinal morphology and histology of duodenum, jejunum and ileum medium portions, it used 40 rabbits New Zealand White race in growing phase, weaned with 35 days of age, allocated in individual cages in the entirely randomized design with 2x2 factorial outline. Samples of duodenum, jejunum and ileum of animals slaughtered at 45 days of age were collected to the present study. It was observed significant interaction of the dietary treatments on the intestinal morphology and histology parameters, being verify that diets with high e low level of fiber with soybean hulls propitiated the greater values of villus height and those diets with high e low level of fiber with alfalfa hay propitiated the bigger values of crypt depth, while the number of goblet cells was larger to the diet with high level of fiber contained soybean hulls. And so there was significant effect of the food quality in terms of fiber components on the extrusion and turnover in intestinal mucous membrane cells, it was evidenced by the greater villus height:crypt depth ratio provided with the diets contained soybean hulls in relation to those diets contained alfalfa hay.

In many areas irrigated of the world, water supply of good quality not be enough for the maintenance of the irrigated agriculture, or your cost be elevated, seeking itself alternative with water use of the underground or even of drainage. Generally, these waters are not of good quality and they need to be well managed to avoid the degradation of the soils and damages to the plants. This work objectified evaluate the composition of lixiviate in four soils of Rio Grande do Norte, irrigated with waters of increasing levels of electric conductivity (EC) and sodium adsorption relation (SAR). This work aims to evaluate Assu/Mossoró, RN, agricultural production center soil degradation under irrigation with increasing electrical conductivity (EC) levels, and sodium adsorption rates (RAS), when cultivated with cantaloupe. The work was conducted in a greenhouse at the Environmental Sciences Department of Semi-Arid Rural Federal University. Four soil types, traditionally used for cantaloupe production, were used and irrigated with solutions corresponding to eight EC (EC = 100, 250, 500, 750, 1.250, 1.750, 2.250 and 3.000 ¿S/cm) and two SAR (SAR = 4 and 12) levels, as salinity treatments, corresponding to the irrigation waters used in the Northeast, with low sodification risk, especially in the studied area. So the experiment was a factorial arrangement of 4 x 8 x 2 (four soils, eight EC and two SAR), with three replicates, on a randomized block design. They were evaluated pH and EC, as well as cations and anions soluble of each lixiviate collected of the 10 days after transplanted of the dumb. The use of leaching solutions promoted salt leaching in four studied soils, mainly at Cambissolo and Neossolo.The increase in the concentration of the percolates solutions promoted larger losses of salts, which were crescent with the time of leachate.

The objective of this experiment was to evaluate the reply of the scarlet culture (Solanum gilo Raddi) irrigated submitted the different applied doses phosphate in the plantation hollow. The used experimental delineation was of randomized blocks, being tested four levels of simple superphosphate (0, 1.000, 2.000, 3.000 kg ha-1). The phosphate fertilization in the plantation caused an increase in the following characteristics total of fruits to plant, commercial weight of fruits to plant, not commercial weight of the fruits to plant and productivity to fruits to hectare. The doses of phosphate that got a bigger efficiency to get a good productivity in the conditions of Cassilândia-MS, was of 1590 kg ha-1 of simple superphosphate that is the equivalent 286,2 kg of P2O5.

Solanum paludosum, vulgarly known as purple Jurubeba is a species of the found in the Brazilian Northeast and rich solanácea family in molecules of farmacológico interest. Among these molecules it is distinguished solasodina that it is an esteroidal alkali that if presents in nature in the glicosídica form and consists in substance cousin for the half-synthesis of adrenocorticais and glicocorticais, used hormones as contraceptive and anti-inflamatorios agents. In this work they show if the cultivated results of regeneration from explantes of leaves, fragments of hypocotyls and root in half MS increased of different regulators of growth. Most efficient that one had been gotten plants in ways of culture contends different combinations in growth regulators being the combination that contained the ácidoindlicoacetico (AIA 10-6) and benzilaminapurina (BAP 10-5M).

Currently, the concern on different poultry market has increased and among several native species, partridge, (Rhynchotus rufescens) is good option as source of avian protein, showing excellent carcass performance. The aims of this paper were to study environmental and genetic factors those affect body weight on different ages in partridges, raised in captivity. Data were collected in the Wild Animal Section of Departamento de Zootecnia, located at Faculdade de Ciências Agrárias e Veterinárias (UNESP), at Jaboticabal - SP. Partridges were raised in a commercial avian barn and families were kept using 1 sire to 2 or 5 dams. Mattings were through natural ride. Eggs were collected daily, weighted, measured and identified by box and sire for pedigree control. Chick were identified and weighted at birth and weekly til get 30 weeks of age. Data set had 13,164 weights taken from 2000 to 2004. The statistical analyses were performed by least squares method and heritability estimated y the Maximum likelihood method. The overall means of 3(W3), 7 (W7), 14 (W14), 21 (W21), 28(W28), 35 (W35), 42 (W42), 49 (W49), 56 (W56), 63(W63), 70(W70), 77 (W77), 84 (W84), 91 (W91), 98 (W98), 105 (W105), 112 (W112), 119 (W119), 126 (W126), 133 (W133), 140 (W140), 147 (W147), 154 (W154), 161 (W161), 168 (W168), 175 (W175), 182 (W182), 189 (W189), 196 (W196), 203 (W203) and 210 (W210) days weight were 38.92g, 52.23g, 76.40g, 105.61g, 137.79g, 208.38g, 208.56g, 249.99g, 293.71g, 335.45g, 373.86g, 408.53g, 440.83g, 467.92g, 503.29g, 522.36g, 548.70g, 564.21g, 582.71g, 593.59g, 603.69g, 613.85g, 629.08g, 642.44g, 637.03g, 646.91g, 637.81g, 653.86g, 662.63, 663.19g and 667.385, respectively. The estimates of heritability to egg weight and weight at birth showed large genetic variability among birds and selection for weight at these ages could be done. The genetic and environmental effects are difficult to estimate in old ages and require more information to provide best estimates.

The use and inadequate management of the soils under caatinga vegetation are pointed as one of the main causes of the degradation and desertation of that environment. The compacting of the soil, that it depends on several intrinsic and extrinsic factors, it is considered as a good indicator of degradation of the soil.This study had as objective evaluates the susceptibility to the compacting and resistance to the penetration and their correlation with physical attributes of a Neossolo Litólico (Brazilian system of classification of soils) under caatinga vegetation. The study was developed in the area of Serra Talhada - PE and it considered as variables the tenor of organic carbon (CO), resistance the penetration (RP), clay tenor (Clay), silte (Silte) and sand (Sand), medium diameter of the cluster (DMP), density of the initial soil (Dsi), particle density (DP), total porosity (PT) and compactability (density of the soil after being submitted to four compacting energies - DsE1, DsE2, DsE3 and DsE4), in three depths, with eight repetitions. The RP and compactability increased significantly with the increase of the depth of the soil, presenting extreme values for 2,47 at 5,81 kgf/cm2 and 1,50 at 1,84 g/cm3, respectively. RP and the compactability presented significant correlation amongst themselves, and they presented significant correlation with the tenor of CO, clay and silte, not presenting significant correlation with the other studied attributes.

In order to investigate the influence of baited-trap color on fruit fly attraction, two McPhail trap models were used to monitor the insect in peach trees. One of the models was constructed of clear plastic, while the other had a clear top and a yellow bottom (base). The traps were installed in pairs, on five plants spaced 30 m apart. Traps were monitored twice a week from 12/20/2005 to 01/13/2006, with trap rotation at each evaluation, switching trap position in the tree. The yellow-bottomed McPhail traps were not superior to the clear ones during the evaluations, and no fruit fly capture increases were observed due to the yellow color.

The experiment was executed to evaluate the temperature and pH influence on activity of peroxidase (POD) in two sweet basil (Ocimum sp.) genotypes, grown in Viçosa, MG, Brazil, the 'Large Leaf' or 'Basilicão' and 'Purple'. It was evaluated the peroxidase activity at pH's 3, 4, 5, 6, 7, 8 and 9, and the remaining activity at 80 oC treated for 0, 5, 10, 15 and 20 minutes. Each experiment was repeated three times. The 'Purple' genotype had higher POD specific activity. Higher and lower activities, for both genotypes, were present at pH 5 to 7 and pH 3 and 9, respectively. The heat treatment at 80 oC for 20 minutes reduced the enzyme activity by 86.28% and 100% for the genotype 'Pulple' and 'Large Leaf', respectively.