The objective of this work was to evaluate sowing depth and seed dormancy breaking method in the formation of seedlings of the soursup rootstock cv RBR. The experiment was conducted under greenhouse conditions at the orchard of the Lavras Federal University - UFLA. The experimental design was in randomized blocks in a two factors arrangement (4x3), with four replicates and five plants per plot. The dormancy breaking treatments were: witness (control); immersion in water (25 °C for 12 hours); immersion in water (25 °C per 24 hours) and side cut on the seed. The seeds were sowed at 1, 2 and 3 cm of profundity. The characteristics evaluated were germination velocity; germination percentage and after 120 days of sowing the seedlings height (cm); rootsand aerial part fresh matter (g) and roots and aerial part dry matter (g) were also evaluated. There was notinteraction of dormancy brake treatments with the seeds profundity. Seed germination was not influenciated by theprofundity that the seeds were sowed. The side cut on the seed did not provide different results of germination percentage and germination velocity compared to the other treatments, but presented higher of seedlings height.

The contamined soil with the forms infect of the parasites, transmitted by feces of animals, it represents high risk of zoonoses transmission. Among the helmintos species, they meet agents producers of the cutaneous migrans and visceral migrans larvae. In this context, the present work had for objective to contribute for the study of the cutaneous migrans larvae, identifying your agents producers and associate the results with the obtained data of the medical registrations of dermatological center in the Mossoró-RN. The study was accomplished in the Mossoró District and beaches of Areia Branca and Tibau District, region west of Rio Grande do Norte State, removing soils samples of the 29 public squares, 07 schools and 04 beaches, to which was processed at the Laboratory of Animal Parasitology - UFERSA, by modified Baermann method. In overall, 200 samples of soil were collected originating from 40 different places, of these, 35% (14) presented growth for Ancylostoma sp, being distributed in 78,6% (11) squares, 14,3% (2) schools and 7,1% (1) beach. The larger occurrence of the helminto was verified in the months that presented higher pluviometric index and in the studied period 92/770 patients positive for worms migrans cutaneous according the medical registrations.

With the purpose of evaluating effects of salinity of irrigation water on initial development of rootstocks of guava (Psidium guajava L), an experiment was conducted in greenhouse at Experimental Station of Pacajus, belonging to Embrapa Tropical Agroindustry in the State of Ceará. The treatments in randomized block design consisted of five levels of electrical conductivity of water (ECw: 0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1) and two cultivars of guava (Rica and Ogawa) with four replications. The irrigation waters were prepared maintaining equivalent proportion of 7:2:1 respectively of Na:Ca:Mg. Seedlings were appraised 80 days after emergence, the effects, on number of leaves, plant height, diameter of stem, phytomass of the root and aerial parts, total phytomass, diameter, leaf area and root to aerial part ratio were studied. The increment of water salinity affected growth of cultivar in terms of number of leaves, stem diameter plant height, the Ogawa cultivar was found to be more affected. In highest level of water salinity (4.5 dS m-1) the relative reduction in total dry phytomass in case of cultivar Rica was 63.5% while the decrease in cultivar Ogawa was higher (77.4%); with regard to leaf area the effect was linear with reduction of 17.2% and 18.4%, respectively, for unit increase of water salinity. In cultivar Rica roots and in cultivar Ogawa the aerial parts were most affected negatively by water salinity.

The objective of this paper was to know the species of the leafminer (Diptera: Agromyzidae) associated with melon plant Cucumis melo L., in the Chapada do Apodi, semi-arid region of the Rio Grande do Norte state, and report losses due to leafminer mining. This way, leaves infested with leafminer larvae were collected in the field and carried to laboratory, in order to obtain pupae. These pupae were placed inside glass containers until adults emergence. All identified adults belonged to Liriomyza trifolii (Burgess). In some farms leafminer caused losts that range from 10 to 15% of the whole area, due to low fruit ºbrix value. From pupae also emerged some Opius sp. (Hymenoptera: Braconidae) individuals, a leafminer natural enemy, endoparasites the larva-pupae of L. trifolii.

The lack of information on seedlings production mainly with respect to the use of residuary water for irrigation and soil subtracts and the sustainability aspect of the production justified the present study. The work was conducted on a greenhouse using the flamboyant (Delonix regia) a forestall specie widely used on reforestation. It was used a randomized block design with four subtracts: soil, soil + NPK, soil + organic compost and soil + biossolid , and two irrigation waters: normal and residuary water, arranged in a factorial form, totalizing fifty six experimental units in seven blocks. At the end of 100 days the plant variables were measured and the data analyzed statistically. Treatments and interactions affected the number of leaves, leaf area, plant height and the aerial plant weight, observing the best results when the residuary water was used for irrigation and when the plant was developed on the soil + organic compost and soil + biossolid subtracts. For the stem diameter and root weight just the subtract nature affected the seedlings, obtaining the best results on the soil + organic compost subtract. The root length was not affected by the treatments.

The present work had for objective to evaluate the quality of the yellow passion fruit marketed in Rio Branco, in the state of the Acre. This research was accomplished the months of April and May of 2006. It was collected fruits of four commercial establishments, being three supermarkets (A,B,C) and a free market (D). The experimental design was in randomized complete blocks with four treatments and seven replications (collection time). The experimental unit was constituted of fifteen fruits. Medium mass of the fruit of 177,62 g, revenue of pulp of 44,44%, thickness of the peel of 6,98 mm, color of the peel varying of 2 (partially it yellows) to 3 (totally it yellows), format index of 1,16, length of 90,26 mm, diameter of 73,83 mm and class varying from 3 to 4. The appearance intern e had index of 3,87 (seeds and pulp stuck to the endocarp and 80% of the juice in the arilos). Fruits with light damages in the of peel were 91,18% and 14,96% with deep damages, classified in the category III. The fruits presented the following composition: 38 mg 100g-1 of vitamin C, 11% of total soluble solids, 5,2% of titlatable total acidity total and ratio of 2,3. The medium price to the consumer was of R$2.55/kg. It was verified by the characteristics analyzed that the establishment A, B and C presented better quality of the fruits in relation to the medium mass, diameter, length and format index. The establishment B markets fruits with larger market price (R$3.68/kg). Therefore, the passion fruit marketed in the municipal district of Rio Branco it is of low quality and prices above the production cost.

An experiment was carried out under greenhouse condition at orchard of Universidade Federal de Lavras, MG with aim studing the effect of different levels of organic matter in the seedling production of papaya Formosa. The experimental design used was of randomized blocks complet with four treatment and four replication. The treatments composited of four percentages of organic compost (0%; 10%; 20% and 40% of the total volume). Each plot 16 seedlings, one for each recipient. After 140 days of sowing, it was evaluated the following characteristics: plant height (cm), number of leaves/plant, shoot dry matter, root and total (g/plant). The presence of organic matter on substrate allawed a higher growth of papaya seedlings. The presence of40% of organic compost on the substrate was the best posibility alternative of organic matter for production of papaya seedlings.

An experiment was carried out in the Botanical Laboratory of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, aiming to evaluate the efficiency of dormancy breaking methods on seed germination of scarlet starglory in hypochloride sodium. A completely randomized desing was used with five treatments and four replications. The treatments consisted of T1 - Seed immersion in hypochloride sodium for 15 minutes, T2 - Seed immersion in hypochloride sodium for 25 minutes, T3 - Seed immersion in hypochloride sodium for 35 minutes, T4 - Seed immersion in hypochloride sodium for 45 minutes, T5 - No mechanical scarification and no seed immersion in hypochloride sodium. The seeds in all treatments were submitted to the immersion in boiling water for one minute for posterior process of steeping in cold water for 24 hours. All seeds were mechanically scarifield for 30 minutes before the immersion in hypochloride sodium. Evaluations for plant height, root length, shoot fresh and dry mass, seed germination percentage and germination speed index (GSI) were made. It was observed that the increase in immersion time in hypochloride sodium increased the percentage in the first seed couting, seed germination percentage and germination speed index, reaching maximum values of 94.07%, 98.49% and 17.48, respectively.