Affiner votre recherche
Résultats 1611-1620 de 1,862
COMPOSIÇÃO QUÍMICA E MICROBIOLÓGICA DE BIOFERTILIZANTES EM DIFERENTES TEMPOS DE DECOMPOSIÇÃO
2012
SAULO DE TARCIO PEREIRA MARROCOS | JOSÉ NOVO JUNIOR | LEILSON COSTA GRANGEIRO | MÁRCIA MICHELLE DE QUEIROZ AMBROSIO | ANA PAULA ALVES DA CUNHA
The objective of this work was to evaluate the chemical composition and microbial of biofertilizers at different decompositions times. For this, we used biofertilizers two. The experimental designused was entirely randomized in factorial scheme 2x7 two sources of manure (cattle and chicken) and seven times of decomposition (0, 5, 10, 15, 20, 25 and 30 days), with three replications. We evaluated the chemical parameters (pH, CE, dry mass, N, P, K, Ca and Mg) and microbiological (bacteria, fungi and actinomycetes total). The chicken manure gave significant increase of nitrogen, phosphorus and potassium, dry mass and electrical conductivity. The highest concentration was within 15 to 20 days of decomposition, with the exception of nitrogen, with the highest concentration on the preparation of biofertilizer. In the microbiological analysis, the chicken manure resulted in higher total population of microorganisms (bacteria, fungi and actinomycetes total) compared to beef. The decomposition periods of biofertilizers influence on nutrient levels, diversity and populations of microorganisms.
Afficher plus [+] Moins [-]SEED INOCULATION WITH Azospirillum brasilense, ASSOCIATED WITH THE USE OF BIOREGULATORS IN MAIZE
2012
ALESSANDRO DE LUCCA E BRACCINI | LILIAN GOMES DE MORAES DAN | GLEBERSON GUILLEN PICCININ | LEANDRO PAIOLA ALBRECHT | MAURO CEZAR BARBOSA | ALEX HENRIQUE TIENE ORTIZ
The inoculation of seeds with the bacterium Azospirillum has been carried out in maize culture and other grasses. The application of growth bio-regulators is another technology whose results in maize culture have yet to become more widespread. Current study evaluates the agronomic effectiveness of seed inoculation with Azospirillum brasilense in maize, associated with the use of the growth regulator Stimulate ®. Triple hybrid maize CD 304 underwent the following treatments: 1 - control without nitrogen and without Azospirillum brasilense; 2 - Treatment without nitrogen but with Azospirillum brasilense; 3 - Treatment without nitrogen but with Azospirillum brasilense + Stimulate ®; 4 - Treatment with 50% of nitrogen dose recommended for maize culture; 5 - Treatment with 50% of nitrogen dose and inoculation with Azospirillum brasilense; 6 - Same as 5 but with Stimulate ®; 7 - Total N recommended; 8 - Total N recommended + Azospirillum brasilense ; 9 - Total N recommended + Azospirillum brasilense + Stimulate ®. The inoculation of maize seeds with Azospirillum brasilense increases plant height and grain yield when compared with rates in control. The use of 50% of N dose in sowing, associated with the inoculation of maize seeds with Azospirillum brasilense at 200 mL ha-1 (mixed to the seeds) and associated with Stimulate ® (in foliar application), is viable.
Afficher plus [+] Moins [-]RESISTÊNCIA DE GENÓTIPOS DE FEIJÃO-VAGEM AO ATAQUE DE BRUQUÍ-NEOS, EM CONDIÇÕES DE LABORATÓRIO
2012
DALINE BENITES BOTTEGA | CAMILA ALVES RODRIGUES | FLÁVIO GONÇALVES DE JESUS | ANDERSON GONÇALVES DA SILVA | NEI PEIXOTO
The aim of this paper was to determine resistance types of snap beans genotypes under infestation of bruchins Zabrotes subfasciatus (Bohemann, 1833) of Acanthoscelides obtectus (Say, 1831) in a no choice and free choice tests. The treatments were arranged in a completely randomized design with four and five replications, respectively. In no choice test, it was evaluated the total number of viable and unviable eggs, dry weight of the consumed food, percentage of emerged insects, weight of insects, longevity of adults and biological cycle of egg to adult. In a free choice test, the number of attracted insects for each genotype and total number of eggs were evaluated. The genotype ARFVI047 presents oviposition non-preference resistance type to Z. subfasciatus. The genotype ARFVI008 presents resistance type of the antibiosis to Z. subfasciatus. The genotypes ARFVI006, ARFVI008 and ARFVI029 present resistance of non-preference for oviposition type to Z. subfasciatus and the genotype HAV 56 black seed presents resistance of non-preference type for feeding of A. obtectus.
Afficher plus [+] Moins [-]PERFIL DE CONSUMO DE PESCADO DOS USUÁRIOS DO RESTAURANTE UNIVERSITÁRIO DA UFERSA
2012
DÉBORA CRISTINA FERNANDES DA SILVA | ALEX AUGUSTO GONÇALVES
The search for healthy foods associate with health and quality of life has contributed to increase the fish consumption. The aim of this study was to verify the profile of fish consumption by the customers of the UFERSA restaurant. 135 questionnaires were applied to meet the consumer of fish, frequency, forms of use and receptivity to new products made of fish. The results indicated low fish consumption by the customers assigned to low supply, lack of habit and high price compared to other meats. The respondents were receptive to new products unless the price is competitive. Research and development of new products based on fish are needed combined with the marketing showing benefits of fish consumption to health.
Afficher plus [+] Moins [-]CONSUMO DE ÁGUA E DESEMPENHO PRODUTIVO DE CAPRINOS RECEBENDO RAÇÕES CONTENDO DIFERENTES TEORES DE CAROÇO DE ALGODÃO EM SUBSTITUIÇÃO A SILAGEM DE MANIÇOBA
2012
JOÃO BOSCO LOIOLA FILHO | BETINA RAQUEL CUNHA DOS SANTOS | DANIEL BONFIM MANERA | DANIEL MAIA NOGUEIRA | TADEU VINHAS VOLTOLINI
The goal of this present paper was to evaluate the productive performance of feedlot goats fed with wild cassava silage based rations and growing levels of whole cottonseed. Whole cottonseed levels evaluated were: 10.0%; 20.0%; 30.0% and 40.0% of dry matter. Twenty four male goats, non castrated, non defined genotype, weighting 9.4±2.0 kg of body weight were used. Experimental design was a completely randomized with four whole cottonseed levels and six replicates. Increasing whole cottonseed levels was observed higher average daily gain and total weight gain of goats. On the other hand, final body weight and total water intaked were not affected by whole cottonseed levels in rations. Besides, water intake from ration corresponded for the most part of total water intaked daily by animals. Increasing whole cottonseed level until 40% of dry matter for feedlot kids goats may promote higher average daily gain and total weight gain, without affect water intake.
Afficher plus [+] Moins [-]SUBDOSAGENS DE Bacillus thuringiensis EM Plutella xylostella (LEPIDOPTERA: PLUTELLIDAE) E Trichogramma pretiosum (HYMENOPTERA: TRICHOGRAMMATIDAE)
2012
SERGIO ANTONIO DE BORTOLI | ALESSANDRA MARIELI VACARI | GUSTAVO OLIVEIRA DE MAGALHÃES | WANDERLEI DIBELLI | CAROLINE PLACIDI DE BORTOLI | MURILO PETRINI ALVES
The aim of this paper was to evaluate the biological aspects of Plutella xylostella and Trichogramma pretiosum in eggs of the F2 generation of P. xylostella under the influence of Bacillus thuringiensis in laboratory conditions. The experiment was conducted in the Laboratório de Biologia and Criação de Insetos of Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal - UNESP reen collars contaminated with strains and commercial product based on B. thuringiensis in the laboratory. The eggs obtained from the F2 generation of P. xylostella evaluated the biological parameters of T. pretiosum. It was observed that some biological characteristics of P. xylostella showed changes by the treatment with B. thuringiensis. The viability of the larvae and pupae stages, pupae weight were the biological parameters more influenced by treatments, with values significantly reduced when compared to control. However, the larvae length and pupae stages and sex ratio were similar in all treatments, with no significant biological variations. Thus, this bacterium isolated from this behavior may provide greater exposure of larvae to other natural enemies as well as generation of adults less viable, which makes them potential programs in pest control, since the interaction of the methods of control is one of the main ways to enhance the biological control of insect pests. It was observed sublethal effects on P. xylostella biology, and B. thuringiensis negative influence on the parasitism capacity and emergency of T. pretiosum.
Afficher plus [+] Moins [-]EFEITO DE ÓLEOS ESSENCIAIS E REVESTIMENTOS COMESTÍVEIS SOBRE PODRIDÕES PÓS-COLHEITA EM MANGA, CV. KENT
2012
MARCELO DE MENEZES CRUZ | SEVERINA RODRIGUES DE OLIVEIRA LINS | SÔNIA MARIA ALVES DE OLIVEIRA | MARIA ANGÉLICA GUIMARÃES BARBOSA
The search for new antimicrobial agents from plants is intense due to the increasing resistance of pathogenic microorganisms to synthetic products. Moreover, the long term use of pesticides cause negative impacts to society and the environment due to pollution caused by chemical waste. The aim of this paper was to evaluate the effect of Lippia sidoides and Piper aduncum oils, carnauba wax and dextrin to control stem-end rot of mango. Fruits of mango cv. Kent were inoculated with suspensions of 106 (conidia/mL) of Lasiodiplodia theobromae or Botryosphaeria dothidea, and after 24 hours there were applied the treatments. The experiment was organized on a completely randomized design with three replications and the experimental unit was composed of a tray containing six fruits. After eight days in cold storage (10 ± 2 º C) the fruits were placed for five days at room temperature (25 ± 2 º C) when were evaluated daily for the disease severity. The best treatments were Lippia sidoides and Piper aduncum oils that showed specificity to control stem-end rot caused by L. theobromae and B. dothidea on mango.
Afficher plus [+] Moins [-]PRODUÇÃO E QUALIDADE DE MELÃO RENDILHADO SOB DIFERENTES SUBSTRATOS EM CULTIVO PROTEGIDO
2012
DANILO MESQUITA MELO | RENATA CASTOLDI | HAMILTON CÉSAR DE OLIVEIRA CHARLO | FRANCINE DE SOUZA GALATTI | LEILA TREVISAN BRAZ
This paper aimed to evaluate the performance of hybrids of muskmelon on different substrates. Five substrates were evaluated: S1 = coconut husk fiber, S2 = sand; S3 = ½ sand and ½ crushed of sugarcane, S4 = ½ sand and ½ of peanut shell, and S5 = I sand, I of crushed sugarcane and I of peanut shell and four hybrids of muskmelon (Bonus N°. 2, Louis, Fantasy Jab and 2007 # 16). The plants were cultivated in plastic pots of 13 dm3, which were filled with these substrates; they were arranged in plants spacing of 1,0 x 0,5 m between plants. The Fertirrigation was done by dripping, using a nutrient solution for the culture. The experimental design was a randomized blocks, in a 5 X 4 factorial design with four replications. The characteristics evaluated were: total production, average transverse and longitudinal diameter of fruit, fruit shape index; mesocarp thickness; average transverse and longitudinal diameter of the locule; index format locule; mass of fresh fruit; soluble solids, pH; titratable acidity; C vitamin; firmness of flesh; tracery of shell; and maturation index. The optimal substrate for muskmelon cultivation is a combination of 50% sand + 50% peanut shell. The hybrid Fantasy performed better compared to other hybrids.
Afficher plus [+] Moins [-]RESPOSTA FISIOLÓGICA DE SEMENTES DE MAMÃO SUBMETIDAS AO CONDICIONAMENTO OSMÓTICO
2012
MARISTELA APARECIDA DIAS | CAMILLA ATSUMI ZANÚNCIO SEDIYAMA | JOSÉ DIAS DE SOUZA NETO | PATRÍCIA MARLUCI DA CONCEIÇÃO | SÁVIO CAZELLI TOREZANI
Priming promotes physiological and biochemical changes in seeds which contribute to the improvement in germination and vigor of the lots. The objective of this study was to evaluate the physiological response promoted by priming lots of papaya seeds after 12 months of storage. Seed lots were obtained through different methods of removing the seeds sarcotesta and stored in a refrigerator for 12 months. After this time, the lots were conditioned in PEG 6000 MPa/48h -0.8 solution, -1.2 MPa/48h PEG 6000 solution, 0.34 KNO3 M/48h solution; H2O/24h and H2O/48h. The temperature during the treatments was 25 Celsius degrees. Seeds not conditioned were used in the control. The design was completely randomized with four replicates, and treatment in a factorial scheme (4 x 6 lots conditioning). The effects of the treatments were tested by F test (< 0.01). Papaya seeds KNO3 solution conditioned accelerated the onset of germination in seeds without sarcotesta, promoting favorable response in the vigor of seed lots. Accelerated aging reduced the germination of the lots. After aging, the conditioning in PEG solution promoted improvement in the physiological quality of the lots.
Afficher plus [+] Moins [-]EFEITO DE DIFERENTES FONTES DE ADUBAÇÃO SOBRE A PRODUÇÃO DE ALFACE NO MUNICÍPIO DE IGUATU-CE
2012
MARCOS ANTONIO VIEIRA BATISTA | LUIZA ALVES VIEIRA | JOACI PEREIRA DE SOUZA | JOSÉ DIJALMA BATISTA DE FREITAS | FRANCISCO BEZERRA NETO
If was evaluated to the influence of different sources fertilization in the productivity of the lettuce cultivar ¿Elba¿ of different sources fertilization. The experimental design was completely randomized in a factorial scheme 4 x 2 with three replications. The experiment was conducted in gauntry of eutrophic cambisol and treatments consisted of the combination of four fertilization sources: 1 - bovine manure vermicompost humus (4 kg m-2); 2 - organic manuring, 4 kg m-2; 3 - cattle manure, 20 kg m-2; 4 - organic and mineral fertilizer, 10 kg m-2 cattle manure + 10 g de urea , 15 g potassium chloride and 45 g sample superphosphate m-2) with without and with foliar application. No significant interaction was observed between factor-treatments. The head mean diameter had mean value of 26 cm at 42 days after transplantation. This value is acceptable for the cultivar. For the characteristic commercial fresh mass, the best performance was in the organic and mineral fertilization (260.20 g).
Afficher plus [+] Moins [-]