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| Registros recuperados: 9.178 | |
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| Schnettler,Berta; Crisóstomo,Gloria; Mills,Natally; Miranda,Horacio; Mora,Marcos; Lobos,Germán; Grunert,Klaus G. |
| In light of the increasing use of nanotechnology in food production, consumer acceptance of sunflower oil produced with nanotechnology or from genetically modified (GM) plants and the conventionally produced raw materials available in Temuco (Araucanía Region, Chile), market segments were differentiated with respect to their acceptance of nanotechnology and characterized according to their sociodemographic characteristics and food neophobia level. To achieve this aim, a survey was administered to 400 people. Using a conjoint analysis, the brand (33.6%) and production system (32.6%) were determined to be more important than the price (19.2%) and health certification (14.6%); national brands, produced conventionally with a health certification seal and sold... |
| Tipo: Journal article |
Palavras-chave: Sunflower oil; Transgenic food; Nanotechnology. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100002 |
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| Carrasco,Basilio; Díaz,Carole; Moya,Mario; Gebauer,Marlene; García-González,Rolando. |
| The genetic characterization of 29 elite Japanese plum cultivars (Prunus salicina) and 4 Prunus cultivars was carried out by analyzing 97 Simple Sequence Repeat (SSR) alleles and 232 binary Inter Simple Sequence Repeat (ISSR) loci. A high level of genetic variability was found for these two molecular markers among the Japanese plum cultivars compared to other Prunus species. On average, the variability found by analyzing the SSR alleles were Na = 12.1, Ne = 5.2, Ho = 0.9, He = 0.8 and F= -0.127, whereas ISSR yielded values of h = 0.15 and I = 0.27. The genetic relationship among cultivars was estimated with Principal Coordinate Analysis (PCA) and a Bayesian clustering approach using the software program Structure. This program identified two subgroups... |
| Tipo: Journal article |
Palavras-chave: AMOVA; Bayesian analysis; Genetic distance; PCA; Plum; Structure. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300012 |
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| Lopera-Barrero,Nelson M; Povh,Jayme A; Ribeiro,Ricardo P; Gomes,Patricia C; Jacometo,Carolina B; Silva Lopes,Tais da. |
| El uso de apropiados métodos de muestreo, tipo de tejido y la utilización de protocolos viables de extracción del ADN son aspectos críticos en estudios basados en PCR. Los métodos de extracción de ADN deben ser simples, reproducibles, económicos y no contaminantes. Este trabajo tuvo por objetivo comparar un protocolo modificado de extracción con sal común (NaCl) y un protocolo modificado de extracción con fenol-cloroformo para la obtención de ADN genómico en alta cantidad y calidad desde muestras de aleta y larva de pez (Brycon orbignyanus, Piaractus mesopotamicus, Oreochromis niloticus, Leporinus elongatus y Prochilodus lineatus). Las muestras aisladas de diferentes especies de peces usando la extracción con sal común permitieron obtener ADN de buena... |
| Tipo: Journal article |
Palavras-chave: Amplificación por PCR; Estudios de peces; Investigación genética; Microsatélites; RAPD. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000100008 |
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| Piñón,Mayte. |
| Off-season vegetables become expensive so new technological systems are required to grow cultivars well adapted to climatic conditions throughout the year. Accordingly, a trial was performed to test 12 tomato F1 commercial hybrids in a Cuban sheltered installation based on the "umbrella" effect recommended for tropical conditions. The main goal of the trial was to study cultivar productivity and adaptation traits before offering recommendations to growers. The '37242' (7.4 kg plant-1) and 'Setcopa' (7.1 kg ha-1) F1 hybrids showed the highest marketable yields, commercialized at 93% and 87%, respectively. The performance of the '37242' was notable; its high fruit set (87%) during the hot and wet season showed its adaptation to the local conditions. The... |
| Tipo: Journal article |
Palavras-chave: Cultivar trials; Tomato; Transfer of technology; Tropical sheltered system. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000200006 |
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| Curifuta,Macarena; Vidal,Jorge; Sánchez-Venegas,Jaime; Contreras,Aliro; Salazar,Luis A; Alvear,Marysol. |
| Propolis has been used for millennia for its antimicrobial and pharmaceutical properties, whereas its use as an agricultural antifungal agent has only recently been assessed. The chemical characteristics of six ethanolic extracts of Chilean propolis (EEP-1 to EEP-6) were evaluated. The total polyphenols ranged between 7.8 and 42.3 mg mL-1 equivalents of a 2:1 pinocembrin: galangin standard, and the total flavonoid contents ranged between 4.0 and 19.7 mg mL-1 equivalents of quercetin. A high-performance liquid chromatographic (HPLC) analysis allowed the identification of caffeic acid, myricetin, quercetin, kaempferol, apigenin, pinocembrin, galangin, caffeic acid phenethyl ester (CAPE) and rutin. The EEP-3 extract was selected for additional studies based... |
| Tipo: Journal article |
Palavras-chave: Alternaria alternata; Antifungal activity; Botrytis cinerea; Flavonoids; Fusarium sp.; Penicillium expansum; Polyphenols; Propolis. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000200011 |
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| Herrera,Luis E; Pinilla,Hernán; Sanhueza,Héctor. |
| Two wheat fertilization experiments were conducted during the 2005-2006 and 2007-2008 seasons using a medial, mesic, seric, Typic Placandept soil to determine the effect of sulfur on the yield, percentage of protein, gluten content, and sedimentation volume of the grain and the nutrient availability in the soil. During the 2005-06 season, the fertilization treatments consisted of a base fertilization plus various sulfur treatments: 0 kg S ha-1 (T1); 27 kg S ha-1 (T2); 54 kg S ha-1 (T3) or 108 kg S ha-1 (T4). During the 2007-08 season, the fertilization treatments were 0 kg S ha-1 (T1), 9 kg S ha-1 (T2), 18 kg S ha-1 and 36 kg S ha-1 (T4). The results showed no differences (P<0.05) in the grain yield for any of the treatments evaluated. Furthermore, no... |
| Tipo: Journal article |
Palavras-chave: Triticum aestivum; Wheat quality; Sulfur; Gluten. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100016 |
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| Nunes,Járisson C.; Cavalcante,Lourival F.; Pereira,Walter E.; Souza,José T. A.; Almeida,Dácio J. de; Oresca,Denizard; Fernandes,Pedro D.. |
| Abstract The salinity of irrigation water can affect the growth and development of most plants of commercial interest. Aiming to study these aspects in passion fruit culture, an experiment was performed to evaluate the effects of bovine biofertilizer and potassium fertilization on gas exchange and production of the passion fruit ‘BRS Giant Yellow’ irrigated with non-saline and saline water. The treatments were arranged in randomized blocks with sub-subdivided plots using the 2×(3×5) scheme, which refers to two levels of electrical conductivity of the irrigation water as the main plot (0.35 and 4.00 dS m−1) and the combination of three potassic fertilization practices (without fertilization, fertilized with conventional and... |
| Tipo: Journal article |
Palavras-chave: Fermented liquid manure; Passiflora edulis Sims; Photosynthetic efficiency; Salinity. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000200168 |
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| Vera,Raúl R; Aguilar,Claudio; Lira,Rodrigo. |
| Traditional sheep production for meat and wool for meat and wool among small and medium-sized Chilean farmers has low profitability. Therefore, there is interest in producing value-added, differentiated products. One alternative is the production of sheep milk and cheese. This arricie analyzes and discusses existing alternatives for modifying milk and cheese compositions with the aim of differentiating these products. Also, analytical techniques that allowthe chemical characterization of milk and cheese are briefly mentioned. The main international thrusts are focused on the modification of the content and composition of milk fatty acids and on the identification of volatile compounds, terpenes, polyphenols and other analytes that allow differentiation of... |
| Tipo: Journal article |
Palavras-chave: Cheese; Differentiation; Flavor; Milk composition sheep value-added. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000300001 |
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| Estay,Carmen; Cautín,Ricardo; Neaman,Alexander; Castro,Monica. |
| The etiolation and layering technique that is used on avocados has two critical steps, namely, the rooting of clonal rootstock and graft union formation between the commercial variety and clonal rootstock. This study analyzed the rooting step of the clonal rootstock regarding its influence on graft union formation and development. The optimum times for grafting the commercial variety onto clonal avocado rootstock were determined under two greenhouse conditions, heating and no heating. The results showed that under greenhouse conditions without heating, there was higher survival (%) in plants that were grafted 60 days after the rooting steps in the clonal scion, and, in the experiments in a heated greenhouse, the highest survival rate (%) was observed in... |
| Tipo: Journal article |
Palavras-chave: Grafting; Histological cross section; Persea americana Mill; Rhizogenesis. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200006 |
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| Díaz,Gonzalo A; Auger,Jaime; Besoain,Ximena; Bordeu,Edmundo; Latorre,Bernardo A. |
| G. A., Diaz, J., Auger, X., Besoain, E., Bordeu, and B. A. Latorre, 2013. Prevalence and pathogenicity of fungi associated with grapevine trunk diseases in Chilean vineyards. Cien. Inv. Agr. 40(2): 327-339. Trunk diseases in grapevine (Vitis vinifera) have been identified as a major problem in the wine and table grape industries around the world, reducing the productivity, quality and longevity of vineyards. The present study examined 694 wood samples from the cordons and trunks of vines with trunk disease symptoms in 67 Chilean vineyards located between Copiapó (27°18' S) and Los Angeles (37°42' S). A total of 1,363 fungal isolates were obtained from diseased cordons and trunks with dark brown streaking, yellowish soft-spongy cankers and brown hard... |
| Tipo: Journal article |
Palavras-chave: Botryosphaeria canker; Esca; Fungal trunk pathogens; Vitis vinifera; Wood decay. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000200008 |
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| Cirigliano,Pasquale; Vincenza Chiriacò,Maria; Nunez,Abelardo; Dal Monte,Giovanni; Labagnara,Tilde. |
| Abstract Montepulciano red grape is cultivated in the northern part of the Latium region, primarily for the production of DOC “Colli Etruschi Viterbesi” structured wines for aging. In Mediterranean areas, viticulture is closely influenced by vine water status. In this context, the practice of irrigation may alleviate water-stress-related reductions in plant development to guarantee grape quality, especially in semi-arid areas. The application of on-farm compost in a vineyard may affect grape quality without negative effects, thereby enhancing environmental sustainability. The aim of this work was to investigate the combined effect of irrigation and compost application on the Montepulciano variety in the volcanic environment of Latium... |
| Tipo: Journal article |
Palavras-chave: Climate change adaptation; Compost on farm; Polyphenols concentration; Vitis vinifera L. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000200195 |
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| Alzugaray,Claudia; Vilche,María Sofía; Petenello,Cristina. |
| La siembra directa ofrece mayor estabilidad y diversidad biológica que otros sistemas de labranza, aunque puede generar compactación en el suelo. Esta restricción se puede resolver con una labranza profunda, capaz de aflojar el suelo pero conservando la cobertura superficial. La condición biológica del suelo es muy sensible a los disturbios ocasionados por el laboreo. Se evaluaron los cambios de la condición biológica originados por el escarificado en un suelo bajo siembra directa estabilizada. Esta investigación se condujo en un cultivo de maíz en Zavalla, Argentina (33° 01'S, 60° 53'0), en un suelo Argiudol vértico. Los tratamientos fueron siembra directa y siembra directa escarificada. Se determinaron carbono orgánico, nitratos, sulfates y fósforo... |
| Tipo: Journal article |
Palavras-chave: Condición biológica; Paratill; Siembra directa; Zea mays. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000300004 |
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| Kibar,Beyhan; Karaağaç,Onur; Kar,Hayati. |
| The present investigation was carried out to study the direction and magnitude of heterosis in twenty-four hybrids for yield contributing head traits in cabbage (Brassica oleracea var. capitata L.). A field experiment was conducted during the cabbage growing season of 2011-2012 at the Black Sea Agricultural Research Institute, Samsun, Turkey. Hybrids and parents were evaluated in a randomized block design with three replications. Measurements were performed for head weight, head diameter and head length to estimate mid parent and better parent heterosis in each hybrid. The direction and magnitude of mid parent and better parent heterosis among hybrids for all the head traits was found to be highly variable. The maximum and significant heterosis in... |
| Tipo: Journal article |
Palavras-chave: Cabbage; Hybrid vigor; Breeding; Head traits; Yield; Yield components. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000200007 |
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| Escobar,Hugo; Bustos,Richard; Fernández,Felipe; Cárcamo,Henry; Silva,Herman; Frank,Nicolás; Cardemil,Liliana. |
| We analyzed the mitigating effect of NO3 - and salicylic acid (SA) on the detrimental effects of salt stress by studying the water status of plants of maize grown in Hoagland's medium with NaCl 100 mM as the saline component, to which SA and NO3 - were added in different concentrations as mitigating agents. We evaluated water potential Ψw, osmotic potential Ψs, relative water content (RWC), turgor potential (Ψp ), and the osmotic adjustment (OA) of leaves and roots. SA 0.5 mM mitigated the effects of salinity by increasing the Ψw of the leaf, the Ψsof theroot, the Ψpof the leaf, RWC and OA of the leaf; while NO3 was only effective in combination with SA, mitigating the effects of salinity by increasing... |
| Tipo: Journal article |
Palavras-chave: Nitrate; Osmotic potential; Osmotic adjustment; Salinity mitigation; Salicylic acid; Water potential; Water relative content. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000300006 |
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| Falcão,Leila D; Chaves,Eduardo S; Burin,Vivian M; Falcão,Ana Paula; Gris,Eliana F; Bonin,Valdir; Bordignon-Luiz,Marilde T. |
| The wine grape (Vitis vinifera) cv. Cabernet Sauvignon has recently been introduced at a 1160 m altitude in the São Joaquim área (Santa Catarina State, Southern Brazil). The aim of this work was to evalúate the maturation of Cabernet Sauvignon grapes subjected to a Y training system or a vertical shoot positioning trellis (VSP). Grapes were sampled at 10-day intervals throughout their maturation during two consecutive vintage years (2004-2005 and 2005-2006). Climate data were assessed. Based on the results obtained in both vintage years at maturity, titratable acidities (TA) ranged from 0.67 to 0.85 g-100 mL-1 of tartaric with the pH fluctuating between 3.49 and 3.77. The maturation Índex (total soluble solids/TA) at maturity ranged from 26 to 35, and was... |
| Tipo: Journal article |
Palavras-chave: Cabernet Sauvignon grape; Ripening; Mesoclimate; Vertical shoot positioning trellis; Y system. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000300010 |
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| Registros recuperados: 9.178 | |
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