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INSECTOS ASOCIADOS A Alpinia purpurata (Vieill.) K. Schum. (ZINGIBERACEAE) EN MACEIÓ Y RIO LARGO (AL), BRASIL
2011
SÔNIA MARIA FORTI BROGLIO-MICHELETTI | MARIA CELESTE CAMPELLO DINIZ | NIVIA DA SILVA DIAS | ALICE MARIA NASCIMENTO DE ARAÚJO | KATHERINE GIRÓN-PÉREZ | JOSÉ ANTONIO DA SILVA MADALENA
Due the fast growing in flowers and ornamental plants production and their high export potential, it is important to identify the insects species associated with Alpinia purpurata (Vieill.) K. Schum crops and to establish their role in this agroecosystem/production system The insects were collected from A. purpurata cv. Pink Ginger and Red Ginger plants cultivated in two farmswith different agroecological characteristics, located in two recognized tropical flower production areas/regions, Maceió and Río Largo cities/localities, Alagoas state, during one year. They were identified and its frequency analyzed according with a numerical scale. According to the results was collected 790 insects of which 69 were identified to specific level, belonging to 59 families of 9 ordens. Results showed Hymenoptera individuals as the most frequent, mainly predator ants and/or associated with phytophagous insects (sucking), besides natural enemies, followed by Hemiptera and Lepidoptera orders, which involved recognized agricultural pests. Insects belonging to the order Odonata and Orthoptera were found less frequently.
Show more [+] Less [-]FUNGOS MICORRÍZICOS ARBUSCULARES E ATIVIDADE ENZIMÁTICA EM SOLO CULTIVADO NA CHAPADA DO APODI - CE
2011
JAMILI SILVA FIALHO | VÂNIA FELIPE FREIRE GOMES | JOSÉ MARIA TUPINAMBÁ DA SILVA JÚNIOR
This paper has evaluated the alterations in the number of spores of arbuscular mycorrhizal fungi (AMF) and enzymatic activity in soil under cultivation of banana trees in Chapada of Apodi. The hypothesis was tested that the agricultural use causes environmental alterations that they reduce the presence of population of AMF and the microbial activity. An area was selected under cultivation of banana trees (Farm Frutacor) and its control (natural vegetation). Four soil samples were collected in three depths in which analyses were accomplished, the number of spores of AMF by Gerdemann and Nicholson (1964) and enzymatic activity: acid phosphatase, arylsulphatase and b-glucosidase by Tabatabai, (1994). The number of spores of AMF show values decreasing with the rise in depth in area cultivated. The activity of the arylsulphatase and acid phosphatase were stimulated by the competition of the anions H2PO4- and SO4- for the same ranches of adsorption in the colloids of the soil. For b-glucosidase, there was a larger activity in the cultivated area, influenced by the amount and quality of the vegetable residue. The enzymatic activity evidences a difficulty of establishing correlations between the biochemistry and chemistry of the soil in area where the entrance of nutrients is high.
Show more [+] Less [-]MISTURA DE SEMENTES DE Brachiaria ruziziensis G.et E. COM URÉIA VISANDO À IMPLANTAÇÃO DO SISTEMA DE INTEGRAÇÃO LAVOURA-PECUÁRIA
2011
HUGO DE ALMEIDA DAN | LILIAN GOMES DE MORAES DAN | ALBERTO LEÃO DE LEMOS BARROSO | ALESSANDRO DE LUCCA E BRACCINI | GLEBERSON GUILLEN PICCININ
The use of granular fertilizers as a vehicle for seeding forage species has become a simple and very useful operation. However, the data is contradictory about how much time the seeds can be mixed with urea without reducing the germination percentage. The aim was to study the effect of mixing periods of urea with seeds of Brachiaria ruziziensis on physiological quality. The treatments consisted of seed mixed times of B. ruziziensis (0; 4; 8; 16; 24; 48; 96 and 192 hours) with urea, besides control treatment. It was used a completely randomized design with four replications. Moreover, with the passage of time in contact with urea, water content and electrical conductivity of seed increased, while there was decrease in percentage of germination, first count, the emergence and emergence speed index. Thus, it is concluded as feasible to mix the seeds with urea, since the seeding is performed at intervals shorter than 8 hours, reducing damage to the seed physiological quality of forage.
Show more [+] Less [-]CRESCIMENTO INICIAL DE MAMONEIRA ADUBADA COM LODO DE ESGOTO E SILICATO DE CÁLCIO E MAGNÉSIO
2011
GERALDO RIBEIRO ZUBA JUNIO | REGYNALDO ARRUDA SAMPAIO | ALTINA LACERDA NASCIMENTO | NATÁLIA NUNES DE LIMA | LUIZ ARNALDO FERNANDES
This paper aimed to evaluate the initial growth of castor bean (Ricinus cummunis L.) in response to fertilization with sewage sludge and calcium and magnesium silicate. The experiment was conducted from July to August 2010 at the Institute of Agricultural Sciences (ICA) in Montes Claros, UFMG - MG. The cultivation was carried out on a Cambisol, using as indicator plant castor bean (Ricinus communis) variety BRS Energy. The treatments, in factorial 2 x 4, in randomized block design with three replicates, were: two doses of calcium and magnesium silicate (0 and 1 t ha-1) and four doses of sewage sludge compost (0; 23,81; 47,62 and 71,43 t ha-1, in dry basis). In the experiment, plant height, crown diameter, stem diameter and leaf number were measurement. Calcium and magnesium silicate did not influence the growth characteristics of plant. On the other hand, the castor bean showed response to sewage sludge compost, expressing the maximum value of the growth characteristics at a dosage of 71.43 t ha-1, except for the number of leaves, which did not respond to any treatment.
Show more [+] Less [-]DESEMPENHO E CARACTERÍSTICAS DE CARCAÇA DE AVES CAIPIRAS ALIMENTADAS COM FENO DE ERVA-SAL (Atriplex nummularia Lindl.)
2011
DERMEVAL ARAUJO FURTADO | SEBASTIÃO BENÍCIO DE CARVALHO JUNIOR | IRACEMA DA SILVA PEREIRA LIMA | FERNANDO GUILHERME PERAZZO COSTA | JANETE GOUVEIA DE SOUZA
Saltbush (Atriplex nummularia Lindl.) is a shrub originating from Australia, which represents one of the forage resources suitable for rainfed land in arid and semiarid regions of Brazil, they have tolerance to dry and saline. In this context, it was aimed to verifying the effect of partial replacement of the conventional diet of saltbush hay on performance and carcass quality of chickens. The treatments consisted of substituting 0, 5, 10 and 15% of the basal saltbush hay. There was a significant effect (P <0.01) of the replacement of the hay on intake of crude protein, crude fiber and gross energy, average daily gain, feed conversion, body weight, absolute weight of carcass, thigh, chest and abdominal fat, and relative weight of thigh, abdominal fat and liver, indicating that the replacement of hay up to 10% of the conventional diet for broiler chickens does not compromise on performance and carcass characteristics of chickens.
Show more [+] Less [-]MEDIÇÃO DE ÁREA FOLIAR DE ACEROLEIRA
2011
RAFAELLA RAYANE MACEDO DE LUCENA | THAÍZA MABELLE DE VASCONCELOS BATISTA | JEFERSON LUIZ DOLLABONA DOMBROSKI | WELDER DE ARAÚJO RANGEL LOPES | GARDÊNIA SILVANA DE OLIVEIRA RODRIGUES
The determination of leaf area is of interest to producers and sectors of research, and techniques should be simple, quick and accurate. This study aimed to compare methods for estimating leaf area of Barbados cherry in orchard. 60 leaves were collected randomly, and after collection, were measurements of leaf area by five methods: squares, linear dimensions, leaf area integrator AM 300, leaf disks and Digital Image Analysis (Scanner). All methods were compared with the reference method (scanner), based on the criterion of determination coefficient of linear regression (R2). The method that is closer to the leaf area of reference was the integrator portable AM 300.
Show more [+] Less [-]DIAGNÓSTICO DAS ÁREAS DE PRESERVAÇÃO PERMANENTE NA MICROBACIA HIDROGRÁFICA DO CORREGO JATAÍ
2011
RENATO FARIAS DO VALLE JUNIOR | BRUNO HENRIQUE PEDROSO VAL | DANILO ALMEIDA DO CARMO | MARIA AMÉLIA DA SILVA CAMPOS SOUZA | VERA LUCIA ABDALA
This current report aimed to formulate the map of land use and occupation of the small watershed of Jatai's brook localized in Uberaba, MG, based on digital images from CBERS 2. To elaborate this work, permanent preservation areas were mapped, using a digital sorter, and also supervised and identified the occurrences of use conflict, with the Brazilian Forest Code (Law no. 4771/1965) and the Resolution No. 303/02, CONAMA, as legal references. This article also analyzes the maintenance of permanent preservation areas through quantitative parameters, Geographic Information System tracks, and recommended by legislation widths along the water bodies. The results showed a deficit of 190ha preserved areas along the riverbanks, which are not in accordance with the law. The pasture unduly occupies 3.97% of the basin areas in the permanent preservation areas alongside the river, while agriculture occupies 0.20%.
Show more [+] Less [-]EFEITO DO NITRATO DE POTÁSSIO NA REDUÇÃO DO ESTRESSE SALINO NO MELOEIRO
2011
WALDEMAR PEREIRA DE ANDRADE JÚNIOR | FRANCISCO HEVILÁSIO FREIRE PEREIRA | OTONIEL BATISTA FERNANDES | ROBERTO CLEITON FERNANDES QUEIROGA | FÁBIO MARTINS DE QUEIROGA
This paper aimed to evaluated the effect of the use of potassium nitrate on the reduction of stress on the melon plants exposed to excess salt in the irrigation water. The experiment was carried out at the Centro de Ciências e Tecnologia Agroalimentar (CCTA/UFCG) Pombal-PB, from 19/09/2009 to 20/10/2009, using the hybrid melon 'Hales Best Jumbo'. The treatments consisted of two levels of of salinity of the irrigation water (0.3 and 5.0 dS m-1) and rates of N in the form of potassium nitrate (5.5; 6.25; 7.0 and 8.5g per plant). The experimental design was randomized blocks, on the factorial scheme 2x4, with four replications. The highest rates of photosynthesis, stomatic conductivity, transpiration, leaf area, total dry mass and the fruit yield per plant were observed on melon plants irrigated with low salinity water (0.3 dS m-1) compared to the ones with the high saline water (5.0 dS m-1), and on rates of N between 6.10 and 7.8g of N per plant for both levels of salinity. The supply of N in the form of potassium nitrate was effective on reducing the melon plant the stressing effect caused by the salinity of the irrigation water up to the rate of 6.85g of N per plant. On absolute terms we can affirm that the best performance of the melon plant was achieved with the rate of 7.0g of N per plan when irrigated with normal water and 6.25 of N per plant when irrigated with saline water.
Show more [+] Less [-]TÉCNICA DE CRIAÇÃO E PARÂMETROS BIOLÓGICOS DE Stegasta bosquella EM AMENDOIM
2011
ARLINDO LEAL BOIÇA JUNIOR | ZULENE ANTONIO RIBEIRO | ANIELE PIANOSCKI DE CAMPOS | NORTON RODRIGUES CHAGAS FILHO
Studies with Stegasta bosquella in peanut crop are little explored by researchers, mainly by theneed of obtaining, in the field, a large quantity of closed leaflets. Therefore, it was sought a way of rearing in a natural diet that facilitates the attainment of the insect. The research was developed at the Laboratório de Resistência de Plantas a Insetos (FCAV/Jaboticabal) (T: 25 ± 2 °C, RH 60 ± 10% and photophase: 12 hours) (Runner IAC 886). The rearing stock of was carried out by collecting caterpillars from the field and keeping them in flat bottom glass tubes until adult emergence and test performance. Caterpillars were individualized in Petri dish plates, lined with moistened filter paper, which contained closed and early opened leaflets, but closed with paper clips (imitating the closed leaflet). A randomized design with two treatments and 36 repetitions was used. After the pupae formation, they were separated into five couples and the adults were kept in transparentplastic cages containing a peanut stem with leaves for oviposition, and fed with a 10% honey solution. The duration and viability of the larval and pupal periods, male and female longevity with and without food, and fertility were evaluated. The two forms of larvae rearing (closed leaflet and leaflet closed with clips) did not influence on any of the studied parameters. Therefore, the rearing of S. bosquella becomes feasible in natural diet, which means there is no need to use the enclosed leaflets for this purpose, and implies the easiness for rearing.
Show more [+] Less [-]CHECKLIST DAS MONOCOTILEDÔNEAS DO CEARÁ, BRASIL
2011
REGINA CELLI ARAÚJO DE FREITAS | MARIA LUANA GAUDÊNCIO DOS SANTOS | LÍGIA QUEIROZ MATIAS
The preparation of lists from the obtaining of primary data in herbaria contributes to enrich knowledge about the Brazilian flora. Mainly, for botanical groups present in the region semiarid and characterized by low availability of information as the monocotyledons. In this way, this work presents a floristic survey of monocotyledons of the State of Ceará, northeast of Brazil, analyzing the taxa richness. The data, which are computerized and available in the software BRAHMS 6.7, were obtained from collecting of the Herbarium Prisco Bezerra (EAC). A total of 3,472 exsicates from collections in the State of Ceará were analyzed, representing 540 species, 207 genera and 28 families. The richest families were: Poaceae (193 spp.), Cyperaceae (104 spp.), Orchidaceae (51 spp.), Bromeliaceae (38 spp.) and Araceae (35 spp.). The richest genera were: Cyperus (31 spp.), Paspalum (26 spp.), Panicum (23 spp.), Rhynchospora (17 spp.), Eleocharis (16 spp.) and Eragrostis (13 spp.).
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