A synopsis of the species of Euphorbiaceae from the National Park Serra of the Itabaiana, state of Sergipe is presented here with information about their geographic distribution, key of identification, synonyms, and habitats. The family in the Park is represented by 24 species distributed among 11 genera.

The guajava is principally cultivated in tropical and sub-tropical regions. The Brazil is one of the principal producers worldwide besides with India, Paquistan, Mexico and Venezuela. The fruit can be used in the industrialization generating many subproducts. The objective of this paper was to evaluate the efficiency of resistance inducers alone and associated with hydrothermal treatment in the control of anthracnose of guajava. The fruits that were treated with Agro-Mos® presented minor severity in comparison to the others treatments (Crop-Set, Methyl Jasmonate and Chitosan). The Agro-Mos® was selected to be used associated with the hydrothermal treatment. The temperatures treatments, 47ºC, in any time of exposure and 50ºC in the time exposure of 3 and 6 minutes differs significantly to the others, independently of the association with the inductor.

The moringa oleifera Lam. tree, a native plant species from tropical Africa, although it has been in introduced in Brazil as an ornamental tree, it can be used for industrial and medicine purposes. The work was to evaluate the physiological quality of the jug with different reservoirs and environmental conditions for a period of six months. The study was conducted in the laboratory of plant physiology in UFERSA, where the seeds were obtained, which were stored after the harvest in three different containers: plastic bag, paper bag and glass which were stored at room temperature and cold for a period of three and six months. After 12 days of sowing, evaluations were made of the speed of germination index (IVG), height and fresh and dry matter of seedlings. The experimental design was entirely randomized in a factorial 3 x 2 x 2, and studied three containers (plastic bag, paper bag and glass), two environments (temperature and cold) and two storage periods (3 and 6 months ) with four replications. The results showed that the seeds are orthodox behavior, remaining viable for six months when stored in cold and room temperature, regardless of packaging, if they are wrapped in airtight packaging.

The experiment was conducted at the Soil Laboratory of the Center for Agrarian Sciences, Federal University of Alagoas to evaluate the effect of different sources of phosphorus, with different levels of humidity on the diffusive flux of phosphorus in soil samples from the State of Alagoas. Samples of four soils from different locations were used. The P sources used were the KH2PO4, Ca(H2PO4)2 and NH4H2PO4, considering two levels of humidity (40% and 80% of field capacity of soil). The test consisted of a factorial arrangement (4 x 3 x 2), corresponding, respectively, the four soils, three sources of phosphorus and two levels of moisture, with four replications in randomized blocks. As experimental units were used rings of PVC. The dose of phosphorus was 50% of maximum capacity for adsorption of phosphorus. To evaluate the diffusive flux, were used anion-exchange paper (PA). The PA was prepared using a filter paper immersed in solution of FeCl3.6H2O and then transferred to a solution of NH4OH. After dried, the leaves were cut into strips and placed in the soil samples. The estimate of the diffusion was performed by quantification of phosphorus adsorbed to the PA. In general, the diffusive flux increased with the decrease in clay content of soils and the higher water content and the source NH4H2PO4 favored greater diffusion.

Erythrina velutina Willd. is a Fabaceae, popularly known as mulungu. Of the several species spread around the world about twelve are found in Brazil. Mainly in the Brazilian northeast the bark is used due to its sudorific, sedative and topical anesthetic properties. The presence of fungi in seed germination can reduce, causing the death of seedlings or transmit diseases to adult plants. The work has as objetive to test the thermotherapy and chemical treatment in the control of fungi associated with the mulungu seeds of three districts in the state of Paraiba. The sanity was carried by "Blotter test" and physiological quality of seeds was evaluated by germination, first germination counting and drymass. The heat treatment used was hot water at 60°C for 5, 10 and 20 minutes. The chemical treatment was done with the fungicide Captan® TS. It was used by treatment 100 seeds, which were incubated forseven days, the temperature of 22 ± 2 ° C and photoperiod of 12 hours. The qualitative and quantitative evaluate of the fungi associated with seed was done with the help of stereomicroscope and expressed as a percentage. In the samples examined, it was the incidence of fungi Aspergillus niger, Aspergillus flavus, Aspergillus sp., Penicillium spp., Cladosporium sp., Rhizopus sp., Fusarium sp and Botritis sp. The results show that the heat and chemical treatments reduced significantly the germination and first count of the locations studied.

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 purpose with this experiment was to evaluate the sucupira-preta seeds tolerance to the desiccation. Seeds initially with 10.63% of humidity were submitted to a drying until reaching the following water tenors: 10.63% (control); 10.0%; 9.5%; 9.0%; 8.5%; 7.5%; 7.0%; and 6.5%. Then they were preheated for 24 hours in recipients with air relative humidity of about 100% to avoid harming by the quick absorption. Next, they were scarified with water sandpaper number 120 and accommodated in Petri plate on filter paper and set to germinate in germination chamber type BOD at 25 ºC and photoperiod for 12 hours, during 30 days. Radicle with 2 mm long was the germination criterion used in this experiment. The experimental design was the completelyKeywords randomized, with four replications of 25 seeds per treatment. The averages were compared using Tukey test at 5% of probability. Sucupira-preta seeds tolerate dehydration until they touch on 9% of water tenor, when they show germination of 24%, not differing from the control (31%). Due to these results they can be classified as orthodoxy, feature that enable the storage away from their natural environment.

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.

This work it objectified determination apparent digestibility of Dry Matter (DM), of Fraction Crude Protein (CP), of Gross Energy (GE) and the Digestible Energy (DEa) and Digestible Protein (DPa) of the waste guava meal and coconut meal. 75 figerlings of Nile tilapia had used been (with initial weight of 20,00 ± 5,0g), kept per 25 days in glass aquariums (70 L of water, each one), were fed to satiation, in small fractions to each 2 hours, of the 8:00 to 17:00h, with three diets (three repetitions each one) contend 0,10% of oxide chromic (marked intern): a) the reference (half-purified); b) 30 % coconut meal and c) 30% of waste guava meal. The feces had been by "sifonagem" two times for day (in beginning of the morning and afternoon end). The values of digestibility of waste guava meal had been: DM 43,36%; CP 61,49%, GE 64,24%; DEa 3601,03 kcal/kg e DPa 6,89% and for coconut meal: MD 60,36%; CP 75,62%, GE 37,10%; DEa 1878,74 kcal/kg e DPa 15,60%. The tested ingredients present potential to be used in rations for figerlings of Nile tilapia.

The objective of this work was to evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species. It was used randomized blocks in experimental design arranged in factorial scheme 2x2+4, with four replicates. The first factor was constituted by the upland rice cultivars (BRS Primavera e BRSMG Curinga) and the second factor by two sowing times of B. brizantha forage (simultaneous sowing between rice and forage and sowing of the forage in the flowering of the rice). The additional treatments consisted of the sole crops upland rice cultivars and B. brizantha forage for each sowing time. In rice was evaluated the height of the plants, bedding, difficulty of the harvest, the number of panicles per area, grain per panicles, percentage of full and empty grains, 100-grain mass and grain yield. In the B. brizantha forage was evaluated the height of the tillers, the total dry mass and the rate of cultural growth. It was observed that the B. brizantha forage interfered in the productivity components of both upland rice cultivars and difficult significantly the harvest of the rice. The upland rice cultivars showed small competitive capacity with the B. brizantha forage when the establishment of the forage occurred simultaneously to the rice. However, to the measure that the sowing was occurred with the established rice already, the B. brizantha forage had his growth suppressed.