This work aimed to evaluate melon cultivars under salt stress conditions. The work was carried out in green house of the Tecnology and Social Sciences Department (DTCS) of the University of the Stete of Bahia (UNEB), at Juazeiro - BA. The experimental design was totally randomized, with four replications in a factorial squeme 3 X 4 (cultivars and salt solutions) and the averages were compared by Tukey test at 5% probability. Melon seeds of the cultivars AF682, Gaúcho e Sancho were sowed in 15 L vases with previously salinizied soils with the conductivities 0,17; 2,23; 4,95 e 6,10 dS.m-1. The emergence percentage and emergence speed rate (IVE) were evaluated. Once the plants have reached blossoming, the were harvested and the fresh matter weight was obtained. After that the plants were dried at 75oC for 72 hours, for dry matter obtention. Were also messuered shoots length and number of leaves per plant. The relative chlorophyll index was obtained after 13, 20, 26 and 40 days after sowing, in three leaves per plant, with a portable chlorophyllmeter Minolta. The leaves of all plants were fotocopied and identified for leaf area (cm2) evaluation. The salt stress induced by the 6,10 dS.m-1 condictivity brought up the information that AF682 cultivar, is less tolerant to soil salinity than Gaúcho and Sancho cultivars.

The present work had as objective to evaluate the influence of pre-germinatives treatments to overcome dormancy in seeds of albizia (Albizia lebbeck) with different colorations. It took place an experiment at greenhouse UFERSA, in Mossoró-RN, in completely randomized design with the treatments distributed in outline factorial 8x2, with the factors treatments for pre-germination and classes of seeds (clear seeds and dark seeds), in four replications of 25 seeds. The germinative pré-germinative consisted either in the immersion of the seeds in sulfuric acid for ten, 15 and 20 minutes; immersion in sodium hypochlorite for ten, 15 and 20 minutes; cutting in the tegument in the opposite side of the embryonic axis and the control (the control was represented by intact seeds). Were analyzed the following parameters: first germination count, germination speed index, and percentage of germination. . By considering the results, it was observed that the dark seeds were better than clear seed. The immersion treatments in sulfuric acid for 10 and 20 minutes and the cutting in the tegument were the most efficient for the break of seeds dormancy.

The purpose of this work was to verify soil respiration kinetics in two sites in the semi-arid region of Paraíba, Northeast of Brazil. The first was a Mimosa hostilis Benth (jurema preta) colonized site, and the other was a degraded area without vegetation. Soil respiration was estimated every hour during a period of 12 hrs. Absorption of the liberated soil CO2 was obtained using a KOH 0.5 N solution. The amount of absorbed CO2 was determined through titration with a HCl 0.1 N solution. Temperature was measured at the surface and 10 cm deep in the soil in both areas. It was observed that the highest level of microbial activity, at the jurema preta site, occurred from 10:00 to 12:00 o¿clock AM. The lowest level of microbial activity was observed when temperature reached 50 oC. In the degraded area, microbial activity reached a maximum at 14:00 o¿clock PM due to the reduction of soil temperature.

Aiming at to characterize a population of angry bean (Capparis flefluosa) they were appraised 30 plants of each category (trees, adult pruned and regeneration), disposed to the case in a palm area. They were appraised the height of the plant, diameter of the height of the chest, diameter of the height of the base, presence of floral buttons, florescimento, fructification in you hoist. For interpretation of the results one was used analyzes of variance, with randomized designe consting. The medium height of the appraised plants was of 5,1 m, diameter of the height of the chest of 16,8 cm, diameter of the height of the base 18,6 cm and diameter of the cup 5,3 m. you hoist presented Them floral buttons between January and February, they bloomed between January and March and they fructified between February and March. The chemical composition among the categories presented a medium tenor for dry matter (MS), crude protein (PB), fiber in neutral detergent (FDN), fiber in acid detergent (FDA), mineral matter (MM), organic matter (OM), hemicelulose (HEM), cellulose (CEL) and lignin (LIG), of 49,5%; 15,4%; 54,1%; 35,6%; 8,9%; 91,1%; 18,4%; 27,6% and 7,2%, respectively. The obtained results indicated that the angry bean possesses similar chemical composition the legumes herbage, being considered an alternative for the exploration in consortium systems seeking to the animal feeding in periods of shortage of forage of the area.

The objective of this present study was to evaluate the productive performance and carcass traits of kids goats receiving rations containing four ratios of concentrate and roughage using the Elephant grass in natura chopped as roughage. The ratios evaluated were: 80:20; 60:40; 40:60 and 20:80% of concentrate and roughage in dry matter basis of rations. Twenty eight Saanen male goats with 9.3 kg of initial body weight distributed in four groups with seven animals in collective pens were used. The experimental design adopted was a completely randomized with seven replicates. The increase of concentrate in rations promoted higher average daily gain, final body weight, total weight gain. Besides, there were obtained higher hot and cold carcass weight and dressing using highest concentrate levels. Thus, technically is viable the use of high concentrate based rations for finishing male goats. However, the concentrate to be used depends to bioeconomic performance promoted.

The objective of the present work was to characterize melon plant accessions collected in the Brazilian Northeast. They were appraised 42 accessions and four you cultivate commercial, in the years of 2006 and 2007, in twoexperiments in randomized blocks with two replications. 24 traits were used, being 1 of the seed, 11 of fruits, 7 inflorescência, 4 of the leaf and 2 of the plant. The accesses belonged to the botanical group Cantalupensis, Momordica, Conomon and not defined group. Great variation was observed among the accessions for all the traits, especially in the fruit descritores. Variation was verified among and within of the studied botanical groups, mainly in the group Cantalupensis. In a general way, the accesses were fruitful, productive, with long fruits of intermediate size the big ones, with low pulp firmness and lower content of soluble solids. The characterization of the accessions with relationship to the fruit traits can aid the improvement programs. Some accessions can be used to increased the fruitful and the productivity of the melon through crossings with elite cultivars.

The Calotropis procera has been an alternative feed for the ruminants in the brasilian semiarid region, presenting fast establishment and constant availability of fitomassa, until 3.0 t of DM/cut, in the dry season. On the aspect biochemical studies have detected various active substances as cardiac glycosides, non enzymatic proteins and enzimatics proteins, that can cause toxicity in animals when inserted in their diet. In nutritional terms, this species provides important nutrients with emphasis on protein, average value of 20%, and in vitro digestibility above 70%. It researches they showed that the intake of C. procera by goats and sheep in the form in nature can cause deaths, however, to make the process of hay and silage the toxicological effects are reduced. The utilization of C. procera is promissing, needing studies for maximize of the productivity; biochemical evaluation for identification of active substances, their mechanisms and local action in the animal, as well as testing to obtain the safe levels for inclusion in various forms of supply (in natura, hay and silage).

The local as regional landscape presents two distinct landscapes: sediments removal from elevated parts and Pedoenvironmental of accumulation of sediments in the area of sandbank with the pedoforms convex-convex, with the biggest curvatures in the sandbanks. The objective of the present work was of characterize physically, morphologicament and chemically the soils groups, located in Semi-Arid region of the medium one West of Rio Grande do Norte, Brazil. Few studies about the morphology, mineralogy, genesis and classification of the soils developed in the state of Rio Grande do Note mainly in the medium one West of Northeast of Brazil. Inside this context eight soils representative of that landscape into caatinga were characterized by means of description morphologic, granulometric and chemical. The results observed in the granulometry of the Luvisol and Neosol reflect basically the different deposition situations in those soils. The high values of organic matter and nitrogen in the superficial horizons, decreasing with the depth and the strong presence of calcium and magnesium justified the variation of pH and the high value of the cation exchange capacity.

The experiment was carried out at the Embrapa Semi-Arid, Petrolina, Pernambuco State, Brazil aiming to study the behavior of five species of the genus Spondias: umbu-cajá (Spondias sp.), umbuguela (Spondias sp.), cajá (S. lutea L.), cajá-manga (S. cytherea Sonn.) e ceriguela (S. purpurea L.) grafted on umbuzeiro (S. tuberosa Cam), which presents a specialized root system bearing tubers. Five-years old plants, spaced by 10.0 m x 10.0 m were studied under rainfed conditions based on phenotypic and physiological data acquisition. The results indicated the occurrence of high levels of graft unions and good vegetative performance of all species, suggesting the occurrence of week incompatibility barriers among them and the rootstock. Consequently, all grafted species presented a internal water balance recovering similar to the umbuzeiro due to the presence of tubers in the root system. Despite the improvement on the species' water balance, the values on stomatal conductance, transpiration and photosynthesis significantly decreased along the experimental period suggesting the existing of a signal present in the root system that controls the stomatal aperture, although to the umbuzeiro, the reduction on gas exchange was less steeped.

The occurrence of the Utetheisa ornatrix (L., 1758) is registered for the first time attacking Crotalaria spp. in Rio Largo country (12°40' S, 39°06' W, 127 m de altitude), Alagoas State, Brazil.