Relevant bibliographies by topics / Nectarinos

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Academic literature on the topic 'Nectarinos'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Nectarinos"

1

Seker, Murat, Kenan Kaynas, Ahmet Yilmaz, and Uygar Us. "Plant and Fruit Characteristics of a Novel White Nectarine Type." HortScience 40, no. 5 (August 2005): 1208–12. http://dx.doi.org/10.21273/hortsci.40.5.1208.

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In this study, we described some tree and fruit characteristics of a novel white nectarine type. The genetic diversity within this white nectarine population was investigated using six enzyme systems and its isozyme variation was also compared with common peach and nectarine cultivars. The results demonstrated that there was a significant variation within the white nectarine population in terms of plant and fruit characteristics probably due to the repropagation of the white nectarines using seedlings by growers. This variation was also verified by isozyme polymorphisms. Plants characteristics of white nectarines were similar to the trees of common peach or nectarine cultivars. However, the white nectarines produce less yield than the common peach or nectarine cultivars and they have small fruit with white-cream color and small flesh ratio making their fruit less attractive. We believe that the white nectarines have high market value and consumer acceptance because of its unique flavor which was confused with taste of either plums or apricots. So far, no standard white nectarine cultivar has been reported. This is the first report characterizing some plant and fruit characteristics of white nectarines which could be used for breeding of standard white nectarine cultivars with high yield and fruit characteristics while keeping its unique flavor. In addition, the white nectarines represent a novel source of germplasm for improvement of peaches and nectarines.
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2

Luchsinger, L. E., G. H. Reginato, and P. Miranda. "172 Changes in Quality and Maturity of Early Season Nectarines (cvs. Aurelio and Early May) during Maturation and Ripening." HortScience 34, no. 3 (June 1999): 471F—472. http://dx.doi.org/10.21273/hortsci.34.3.471f.

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The objectives of this study were to characterize the quality and maturity changes of nectarine (Prunus persica var. Nectarina) fruit cvs. Aurelio and Early May during maturation and ripening and to identify harvest maturity indices. After fruit set, 250 fruit of similar diameter and tree position were tagged to follow maturation and ripening on the tree. During commercial harvest, 48 fruit were ramdomly harvested every 2 to 3 days. Ethylene evolution rate (EER) at 20 °C, fresh weight, and peel ground and cover color (L*, a*, b*, C* and Hue value) were measured on all 48 fruit. Flesh color, firmness at several fruit points, soluble solids (SS), pH, titratable acidity (TA) and SS: TA ratio were measured only to 24 fruit, and the rest were held for up to 7 days at 20 °C as a ripening period to measure the same parameters mentioned above. Pearson correlation coefficients were determined between variables to explore possible harvest maturity indices. The most significant changes occurred in EER, fruit firmness, and peel ground color (a* and hue value). For `Aurelio' nectarines the highest correlations (P < 0.001) were obtained between logEER-tip firmness (r = -0.69), tip firmness-a* ground color (r = -0.66) and, tip firmness-hue ground color (r = -0.67). No important correlations (r > 0.60) were found for `Early May' nectarines. It was also found that fruit softening varies according to the point of measurement in the fruit depending on the cultivar.
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Liu, Sha, Huan-Huan Gao, Yi-Fan Zhai, Hao Chen, Hai-Yan Dang, Dong-Yun Qin, Li-Li Li, Qiang Li, and Yi Yu. "Oviposition Suitability of Drosophila Suzukii (Diptera: Drosophilidae) for Nectarine Varieties and Its Correlation with the Physiological Indexes." Insects 10, no. 8 (July 24, 2019): 221. http://dx.doi.org/10.3390/insects10080221.

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The nectarine is an important fruit, which is attacked by Drosophila suzukii in Europe and the United States but there are no reports of it attacking nectarines in China. Here, we determined the oviposition preference of D. suzukii six on intact and sliced nectarine varieties in China and how physical and physiological indexes of the fruit correlate with these preferences. D. suzukii were allowed to oviposit on two early–, two middle– and two late–maturing varieties of nectarine—Shuguang and Chunguang, Fengguang and Zhong you 4, Zhong you 7 and Zhong you 8, respectively and the number of larvae also followed the order. The firmness, soluble solids content and the nutritional components of the amino acid, protein, soluble sugar and pectin contents of each variety were measured. D. suzukii preferred the early Shuguang variety, followed by the early Chunguang variety and then the middle Zhong you 4 and Fengguang varieties. Taken together, results show that D. suzukii shows preferences for earlier rather than later varieties of nectarines in China and that these preferences are related to the fruit’s physical and physiological traits. Results suggest that mixed cultivation of early–, middle– and late–maturing nectarine varieties should be avoided in order to prevent fly dispersal and infestation by D. suzukii.
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El-Wazir, Fairuz, Dangyang Ke, and Adel A. Kader. "TOLERANCE OF NECTARINE AND PEACH CULTIVARS TO INSECTICIDAL CONTROLLED ATMOSPHERES." HortScience 27, no. 6 (June 1992): 678a—678. http://dx.doi.org/10.21273/hortsci.27.6.678a.

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The tolerances (based on time before detection of off-flavor) of nectarine and peach cultivars to an insecticidal controlled atmosphere of 0.25% O2 (balance N2) at 20C were 2.8, 4.0, 4.0, 4.4, 5.1, and 5.3 days for `John Henry' peaches, `Fantasia' nectarines, `Five Red' peaches, `O'Henry' peaches, `Royal Giant' nectarines, and `Flamekist' nectarines, respectively. The greater sensitivity of `John Henry' peaches to low O2 stress was associated with a higher respiration rate; faster accumulation rates of acetaldehyde, ethanol, and ethyl acetate; and a more mature and larger fruit. The tolerances of `Fairtime' peaches to 0.21% O2 + 99% CO2 at 20C, 0.21 O2 + 99% CO2 at 0C, and 0.21% O2 at 20C were 3.8, 5.0, and 6.0 days respectively. There was a good correlation between tolerance of nectarines and peaches to insecticidal atmospheres and the accumulation rates of acetaldehyde (r=-0.94, p<0.01) and ethanol (r=-0.88, p,0.01).
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Layne, Desmond R., and W. R. Okie. "(94) White-fleshed Peaches and Nectarines for the Southeastern United States." HortScience 41, no. 4 (July 2006): 1029B—1029. http://dx.doi.org/10.21273/hortsci.41.4.1029b.

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White-fleshed peaches and nectarines are delicacies that have been enjoyed for centuries around the world. They are native to China and were introduced to the United States in the 1800s. Some white-fleshed peaches and nectarines are highly perishable and bruise easily, but are of very high eating quality. These are perhaps best suited for the local roadside market, where they can be sold and consumed more quickly. Others are much firmer at harvest, have a longer shelf life. and are suitable for long-distance transport to wholesale markets. White-fleshed peaches and nectarines may have some acidity or they may be very low acid with high sugar content (°Brix). Some novel flat (peento or donut) types also exist. Proximity to an urban market with a substantial Asian population is advantageous because Asians, in particular, often prefer the low-acid flavor and are willing to pay premium prices for high quality fruits. In our peach and nectarine cultivar evaluation program at Clemson University, we are currently evaluating 70 cultivars and advanced selections at four different locations in South Carolina. Several of these have been evaluated since 2000 and the “top performers” over the last six seasons by ripening date (earliest to latest) include the following: `Sugar May', `Scarletpearl', `Snowbrite', `Southernpearl', `White Lady', `Sugar Lady', `Summer Sweet', `Sugar Giant', `Stark's Summer Pearl', `Snow King', and `Snow Giant'. In general, most of the white nectarines and the flat/donut peaches and nectarines have serious problems with insect damage and brown rot. Complete details of our peach and nectarine (yellow- and white-flesh) evaluation work in South Carolina since 2000 will be noted by referring to my peach website (http://www.clemson.edu/hort/Peach/index.php).
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Okie, W. R. "Inheritance of the Roughskin Character in Peach." HortScience 31, no. 4 (August 1996): 618d—618. http://dx.doi.org/10.21273/hortsci.31.4.618d.

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Pubescence in peach fruit is controlled by the Gg locus, with the homozygous recessive being the glabrous-skinned nectarine. The roughskin character in peach causes the loss of all long hairs on the epidermis of the fruit. Under a microscope short stubs are visible. The fruit is rough to the touch and appears dull rather than shiny as a nectarine would appear. A pleiotropic effect is lack of hairs on the dormant leaf and flower buds, making them noticeably shiny to the naked eye, unlike normal peaches and nectarines. The roughskin character appeared in 3 of 70 seedlings from the cross of Pekin × Durbin. The remaining seedlings all produced normal peaches. Sibling F2 progenies segregated for peach and nectarine, and in one case, for roughskin as well, indicating the cross was valid. Results from numerous crosses and F2 populations indicate this character is controlled by a single recessive gene, which is hereby designated rs. Nectarines homozygous for this gene have glabrous buds, but otherwise appear normal. The origin of the mutation is unclear. Selfed seedlings of Pekin and Durbin have not expressed the recessive form of the gene. Possibly a limb of the Pekin tree (now gone) used for the crosses had mutated to the recessive form at one or both loci. The homozygous roughskin progeny would have then been inadvertent self-pollinations rather than hybrids, since none of them segregated for nectarine.
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González, Ana María. "Nectarios extraflorales en Turnera series Canaligerae y Leiocarpae." Bonplandia 9, no. 1-2 (January 1, 1996): 129. http://dx.doi.org/10.30972/bon.91-21478.

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<div>En este trabajo se describe la anatomía de los nectarios extraflorales de diecisiete especies de Turnera, pertenecientes a Canaligerae y series Leiocarpae. </div><div>Los nectarios foliares nacen en el ápice del pecíolo o en la base de las láminas foliares, son discoides, cupular with a rim surrounding a cup. Aunque el tamaño y la morfología son variables entre las especies, la estructura de los nectarios es básicamente la misma. </div><div>Están compuestos por una epidermis secretora, que consiste en 1-4 capas de células columnares. Detrás de este tejido, por lo general hay 2-8 capas de parénquima glandular. </div><div>El cuerpo del nectario está formado por ground parenchyma; drusas de oxalato de calcio y idioblastos taninos son abundantes en esta zona. </div><div>El aporte vascular proviene del paquete pecíolo mediano. Es proporcionada por 1 ó 2 paquetes laterales que se ramifican en varias ocasiones en la parénquima baja del nectario. </div><div>En todos los nectarios estudiados el tejido vascular termina como hebras aisladas de floema entre las células de la parénquima secretora. </div><div>Por primera vez, tracheoids se describen en nectarios; estos elementos eran conocidos solamente en el vetillas de hojas de angiospermas. </div><div>La mayoría de las especies de la serie Canaligerae, tienen «poros» en la epidermis secretora, que es de hecho, una protuberancia determinado por la parénquima glandular, la superficie es plana o crateriforme.</div><div>Una cutícula densa cubre la epidermis, sólo en el centro de los «poros» es lo suficientemente delgada como para permitir la extrusión de néctar. </div><div>En ninguna de las especies se observó ruptura de la cutícula. En los nectarios Leiocarpae el «poro» está menos desarrollado o ausente.</div>
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8

Ramming, D. W. "Genetic control of a slow-ripening fruit trait in nectarine." Canadian Journal of Plant Science 71, no. 2 (April 1, 1991): 601–3. http://dx.doi.org/10.4141/cjps91-090.

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Inheritance of a slow-ripening trait was investigated in segregating progenies of nectarine (Prunus Persica (L.), Batsch var. nucipersica Schneid). Segregation ratios suggest that the trait is controlled by a single recessive gene, for which the symbol sr is proposed. Fantasia, Flamekist, and Fairlane nectarines are heterozygous at the sr locus. Key words: Peach, breeding, postharvest, genetics, stone fruit
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9

Scalisi, Alessio, Mark G. O’Connell, Daniele Pelliccia, Tim Plozza, Christine Frisina, Subhash Chandra, and Ian Goodwin. "Reliability of a Handheld Bluetooth Colourimeter and Its Application to Measuring the Effects of Time from Harvest, Row Orientation and Training System on Nectarine Skin Colour." Horticulturae 7, no. 8 (August 19, 2021): 255. http://dx.doi.org/10.3390/horticulturae7080255.

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This work aimed to (i) determine the reliability of a portable Bluetooth colourimeter for fruit colour measurements; (ii) characterise the changes in quantitative skin colour attributes in a nectarine cultivar in response to time from harvest; and (iii) determine the influence of row orientation and training system on nectarine skin colour. The skin colour attributes measured with the colourimeter, namely L*, a* and b*, were calibrated and validated against a reference spectrophotometer. C* and h° were obtained from a* and b*. Skin colour was measured in situ from 42 days before to 6 days after harvest on ‘Majestic Pearl’ nectarines subjected to different row orientations and training systems. Validation models showed high reliability of colour estimations. The trends of colour attributes over time were characterised by cubic regression models, with h° proving to be the best parameter to describe changes of colour over time, with a clear link to the maturation process. No significant effects of row orientation and training system on skin colour were observed at harvest. Overall, the device proved reliable for fruit colour detection. Results of this study highlight the potential of h° as a quantitative index to monitor ripening prior to harvest in ‘Majestic Pearl’ nectarines.
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Ahmadi, H., W. V. Biasi, and E. J. Mitcham. "Control of Brown Rot Decay of Nectarines with 15% Carbon Dioxide Atmospheres." Journal of the American Society for Horticultural Science 124, no. 6 (November 1999): 708–12. http://dx.doi.org/10.21273/jashs.124.6.708.

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Effects of short-term exposure to a 15% CO2 atmosphere on nectarines [Prunus persica (L.) Batsch (Nectarine Group) `Summer Red'] inoculated with Monilinia fructicola (Wint.) Honey (causal agent of brown rot) were investigated. Nectarines were inoculated with spores of M. fructicola and incubated at 20 °C for 24, 48 or 72 hours and then transferred to storage in either air or air enriched with 15% CO2 at 5 °C. Fruit were removed from storage after 5 and 16 days and were examined for brown rot decay immediately and after ripening in air for 3 days at 20 °C. Noninoculated nectarines were stored and treated likewise for evaluation of postharvest fruit attributes to determine their tolerance to 15% CO2. Incubation period after inoculation, storage duration, and storage atmosphere had highly significant effects on fruit decay. `Summer Red' nectarines tolerated a 15% CO2 atmosphere for 16 days at 5 °C. Development of brown rot decay in fruit inoculated 24 hours before 5 or 16 days storage in 15% CO2 at 5 °C was arrested. After 3 days ripening in air at 20 °C, the progression of brown rot disease was rapid in all inoculated nectarines, demonstrating the fungistatic effect of 15% CO2. The quantity of fungal cell wall materials (estimated by glucosamine concentration) was compared to visual estimation of decayed area and visual rating of fungal sporulation. The glucosamine assay defined the onset and progress of brown rot infection more precisely than either of the two visual tests.
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Dissertations / Theses on the topic "Nectarinos"

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Alvial, Ibáñez Daniela Andrea. "Caracterización de la tasa de ablandamiento y harinosidad de la pulpa en una población F2 de nectarinos ‘Venus’." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/149689.

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Memoria para optar al Título Profesional de Ingeniero Agrónomo
El objetivo de este trabajo fue caracterizar la harinosidad y la tasa de ablandamiento en los frutos de una población F2 del nectarino ‘Venus’ y de éste. Se caracterizó el estado de madurez de los frutos al momento de cosecha y luego del almacenamiento a 4ºC durante 21 días midiéndoles peso, color de fondo, firmeza de la pulpa y concentración de sólidos solubles. Después de un periodo de almacenamiento a 20ºC hasta alcanzar la madurez de consumo se evaluó la harinosidad de la pulpa, el color de fondo, la firmeza de la pulpa y la concentración de sólidos solubles. Se observó que el 53,3% de los individuos de la población F2 y ‘Venus’ presentaron una pérdida de firmeza de 0,5 kg-f/día. El 28,9% y el 17,8% de los individuos de la población F2 presentó una pérdida de firmeza de 0,74 kg-f/día y 0,99 kg-f/día, respectivamente. Según el método de absorción en papel de jugo libre, el 41,2% de la población F2 presentó frutos harinosos y el 55,7% de la población F2 presentó mayor porcentaje de jugosidad que ‘Venus’.
The objective of this work was to characterize the flesh mealiness and softening rate of fruits of an F2 population of ‘Venus’ nectarine. Fruit maturity stage was characterized at harvest time and after storage at 4°C during 21 days by measuring weight, ground color, flesh firmness and soluble solids concentration. After a storage period at 20°C until reaching ripening, flesh mealiness, ground color, flesh firmness and soluble solids concentration were evaluated. It was observed that 53.3% of the F2 and ‘Venus’ population individuals presented 0.5 kg-f/day of firmness loss. In the F2 population, firmness loss in 28.9 and 17.8% of the individuals was 0.74 kg-f/day and 0.99 kg-f/day, respectively. According to the paper absorption method of free juice, 41.2% of F2 population showed mealy fruits and 55.7% of it exhibited a greater juiciness percentage than ‘Venus’.
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Ventura, Vergara Felipe Alejandro. "Evaluación de la aplicación de tratamientos combinados de antipardeantes en atmósfera modificada activa, sobre la calidad de nectarines var. Zee Glo mínimamente procesados ​​en fresco." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/148624.

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Mención para optar a Titulo Profesional de Ingeniero Agrónomo
En la actualidad las frutas mínimamente procesadas en fresco (MPF) han tenido un alza debido a los cambios de vida de los consumidores a través del mundo y a sus beneficios nutricionales. Sin embargo, las frutas MPF son muy perecederas por lo que es necesario buscar alternativas de control que prolonguen su vida útil. Para retardar la pérdida de parámetros físicos, químicos y sensoriales de cascos de nectarines var. Zee Glo se utilizaron agentes antipardeantes y atmósfera modificada activa. Los tratamientos utilizados fueron 0-BP (bolsa perforada con 0%AC, 0%EDTA, 0%AA), 1-BP (bolsa perforada con 0,7%AC, 0,3%EDTA, 0,1%AA), 0- MP (bolsa con moderada permeabilidad con 0%AC, 0%EDTA, 0%AA), 0-AP (bolsa con alta permeabilidad con 0,7%AC, 0,3%EDTA,0,1%AA), 1-MP (bolsa con moderada permeabilidad con 0,7%AC, 0,3%EDTA, 0,1%AA), 1-AP (bolsa con alta permeabilidad con 0,7%AC, 0,3%EDTA, 0,1%AA). Se evaluó la tasa respiratoria, producción de etileno, concentración gaseosa, parámetros de color, firmeza, concentración de sólidos solubles, acidez titulable, calidad sensorial, contenido fenólico total, capacidad antioxidante y actividad de PPO. Los resultados obtenidos evidenciaron que los cascos con y sin antipardeantes obtuvieron valores de 50,9 y 52,5 mgCO2·kg-1·h-1 y 3,1 y 3,5 μLC2H4·kg-1·h-1 respectivamente, presentaron una tasa respiratoria y una producción de etileno mayor que la de los frutos enteros en el día 7 de almacenamiento. La concentración atmosférica dentro de las bolsas varió según el tipo de permeabilidad para los cascos sometidos a MP y AP desde el día 3 de almacenamiento. La apariencia de los cascos disminuyó conforme aumentó el pardeamiento. Los tratamientos 1-MP y 1-AP fueron los más efectivos en prevenir la pérdida de luminosidad con valores de 70,4 y 70,2; la pérdida del tono con valores de 89,7 y 90, el aumento de la saturación con valores de 40,5 y 40,7, la pérdida de apariencia con valores de 7,6 y 8,3 cm y el aumento del pardeamiento con valores de 7,3 y 7,3 cm respectivamente en el día 7 de almacenamiento. El contenido fenólico y la capacidad antioxidante presentaron un comportamiento similar al anterior, disminuyendo ambos en el tiempo. Aquellos tratamientos con antipardeantes con un valor de 724 EAG g-1pf y los cascos sometidos a AP, con un valor de 700 EAG g-1pf fueron eficaces en controlar la pérdida del contenido fenólico en el día 7 de almacenamiento; mientras que los cascos con antipardeantes con un valor de 109 μg EAA g-1pf y los sometidos a AP, con un valor de 121,5 μg EAA g-1pf fueron los más eficientes en controlar la pérdida de la capacidad antioxidante. La actividad de la PPO presentó un aumento en el tiempo donde los cascos con antipardeantes con un valor de 0,44 U·ml-¹ proteína, presentaron la menor actividad.
At present, minimally processed fresh fruits (MPF) have increased its production due to changes in lifestyle in worldwide population and their nutritional benefits. However, MPF fruits are very perishable and alternatives treatments to prolong their shelf life must be used. To retard parameters physical, chemical and sensory changes on Zee Glo nectarine wedges anti-browning agents and active modified atmosphere were used. The treatments 0-BP (perforated bag with 0% CA, 0% EDTA, 0% AA), 1- BP (perforated bag with 0.7% CA, 0.3% EDTA, 0.1% AA), 0-MP (moderate permeability with 0% CA, 0% EDTA, 0% AA), 0-AP (high permeability with 0.7% CA, 0.3% EDTA, 0.1% AA), 1-MP (moderate permeability with 0.7% CA, 0.3% EDTA, 0.1% AA), 1-AP (high permeability with 0.7% CA, 0.3% EDTA, 0.1% AA) were used. Respiration rate, ethylene production rate, gas concentration, color parameter, firmness, soluble solid concentration, titratable acidity, sensory quality, total phenolic content, antioxidant capacity and PPO activity were evaluated. The results showed that the wedges both with and without anti-browning solutions obtained 50.9 and 52.5 mgCO2•kg-1•h-1 and 3.1 and 3.5 μLC2H4•kg-1•h-1 respectively, which filed greater respiratory rate and ethylene production than the whole fruit on day 7 of storage. The atmospheric concentration inside of the bags change with the type of permeability for hulls submitted to MP and HP since day 3 of storage. The appearance of the hulls decreased when the browning increased. Treatments 1-MP and 1-HP were the most effective in preventing the loss of luminosity with values 70.4 and 70.2, the loss of tone with values of 89.7 and 90, increasing the saturation values 40.5 and 40.7, the appearance loss values of 7.6 and 8.3 cm and increased browning with values of 7.3 and 7.3 cm respectively on day 7 of storage. Phenolic contents and antioxidant capacity decreased during the storage that showed a similar to previous pattern. Those anti-browning treatments which reached values of 724 g-1pf EAG and wedges treated with AP which obtained values of 700 g-1pf EAG were effective in controlling the loss of phenolic content on day 7 of storage. Both anti-browning treatments which obtained values 109 μg EAA g-1 and wedges treated with HP reached value of 121.5 μg EAA g-1 of fresh weight were the most efficient in controlling the loss of antioxidant capacity. The PPO activity showed an increase in time where the wedges with antipardeantes showed lower activity with a value of 0.44 U·ml-¹ protein.
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3

Zavala, Lagos Pamela Claudia. "Evolución de la calidad sensorial de nectarinas [Prunus persica var. Nucipersica (L.) Batsch.], "Venus" y "Maria Dolce", en postcosecha." Tesis, Universidad de Chile, 2006. http://www.repositorio.uchile.cl/handle/2250/101842.

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Memori a par a optar a l Títul o Profesi onal de Ingeniero A grónomo Mención: Fruticultura
La deficiente condición que presentan muchos frutos de carozo al llegar al consumidor final, marca un gran problema en la exportación de frutas frescas, por ello se ha planteado esta investigación, que tiene como objetivos: describir la evolución de los parámetros de calidad técnica y evaluar la calidad sensorial de dos variedades de nectarinas (Venus y Maria Dolce), luego de distintos períodos de almacenaje en condiciones convencionales de postcosecha. Se cosechó la fruta en un huerto comercial de Paine, RM, en dos estados de madurez de acuerdo al color de fondo (verde, M1 y amarillo, M2). El almacenaje de los frutos fue a 0°C por 0; 14; 28 y 42 días. Las evaluaciones se realizaron después de cada salida de frío, más un período de maduración a 20°C, hasta que la firmeza de la pulpa alcanzó entre 1,0 a 2,0 lb-f. Los parámetros de calidad técnica evaluados fueron: peso (fruto, pulpa y carozo), color (epidermis y pulpa), diámetro (ecuatorial y polar), firmeza de pulpa (ambas caras, sutura, hombro y punta), concentración de sólidos solubles, pH, acidez titulable y la relación entre sólidos solubles y la acidez titulable. Por medio del análisis sensorial se evaluó aceptabilidad, apariencia, color, aroma, textura, dulzor, gusto ácido, jugosidad y sabor. Se determinó que, es posible almacenar frutos de la variedad Venus, en ambos estados de madurez por 28 días, sin presentar grandes diferencias en sus parámetros de madurez y atributos de calidad sensorial; periodos de almacenaje más prolongados, disminuyen notablemente la aceptabilidad de esta fruta. Los frutos de la variedad Maria Dolce, en ambos estados de madurez, presentan un buen potencial de almacenaje, de al menos, 42 días en postcosecha, sin influir negativamente en su aceptabilidad. Los frutos de M2, de ambas variedades, fueron los que presentaron un mejor comportamiento en postcosecha.
The poor eating quality of fresh nectarines destinated to long distance markets, is one of the main problems that are facing some countries, as Chile which is a conspicuous exporter of off-season stone fruits to the Northern Hemisphere. This research is focused on the evaluation of some postharvest indexes and quality attributes of two nectarine cultivars (Venus y María Dolce) harvested at two maturity stages kept on long term postharvest. Fruit of two maturity stages, determined by its ground color, was harvested (green, M1 and yellow, M2) and stored at 0°C and 95%R.H. for 0; 14; 28 and 42 days. Evaluations were carried out after the fruit was withdrew of the cold chamber plus a variable period of ripening at 20°C, until the flesh firmness reached among 1.0 to 2.0 kg-f. In each postharvest period, the color (epidermis and flesh), equatorial diameter, flesh firmness, soluble solids (SSC), pH, titratable acidity (TA) were determined. Besides through a panel, visual appearance, color, aroma, flesh texture, sweetness, acidity, juiciness, flavor and degree of liking was evaluated. It is reliable to store Venus peaches at both maturity stages for 28 days without registering differences neither on its maturity parameters nor on its sensorial quality attributes. The most the postharvest period goes on, the degree of liking goes down. Both ‘Maria Dolce’ maturity stages presented good storage potential ability, reaching even 42 days without showing different liking degree of recently harvested fruit. Fruits of M2 of both cultivars were the ones that presented a better behavior, in terms of eating quality and postharvest parameters.
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Iturriaga, Muñoz Fanny Paola. "Fenología y calidad de fruta en una población F2 de nectarinas (Prunus persica var. Nucipersica (L.) Batsch.) "Venus"." Tesis, Universidad de Chile, 2010. http://www.repositorio.uchile.cl/handle/2250/112311.

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Memoria para optar al Título Profesional de Ingeniero Agrónomo
Dada la gran dependencia que posee la fruticultura chilena frente al desarrollo genético extranjero, sumado a los problemas de calidad y condición que presentan nectarinas y duraznos en los mercados de destino, se planteó este estudio. El objetivo fue evaluar la fenología y calidad de la fruta de una población de 36 árboles de la F2 de la variedad Venus, mediante la caracterización de los árboles y de su fruta, tanto en cosecha como en postcosecha. Se realizó un seguimiento, dos veces por semana, de cada evento fenológico, registrando cuando el 80% de las yemas estaban en el estado fenológico determinado. Los frutos fueron cosechados con color de fondo verde-amarillo, los parámetros evaluados en cosecha fueron: peso, color de fondo, firmeza de pulpa, concentración de sólidos solubles y acidez titulable. En postcosecha, después de almacenamiento durante 21 días a 4°C más un período de maduración a 20°C, se determinó la tasa de ablandamiento, el cambio de color de fondo y la harinosidad, esta última mediante el método de absorción de jugo libre. Además, se calculó preliminarmente la heredabilidad de la población, determinando la variabilidad genética y ambiental. En la cosecha, se evaluó la producción total, número de frutos y peso medio de fruto cosechado por árbol. Se determinó la duración de sus estados fenológicos y la fecha de plena floración, la mayoría de los árboles presentaron, en general, sus primeros estados fenológicos más breves, y los últimos, más prolongados. La cosecha se presentó variable y extensa. En cuanto a la productividad, sólo dos árboles se destacaron (173 y 155), por el tamaño de su fruta. El 67,5%, correspondiente a veinticinco de los 37 árboles, fueron considerados harinosos, con un porcentaje de jugosidad menor a 38,4%. La heredabilidad, en cuanto al porcentaje de jugosidad, presentó un valor de 52%, influenciado directamente por la genética de la población.
This study was undertaken for the heavy dependence of Chilean fruit growing on foreign genetic development and the problems of quality and condition shown by nectarines and peaches at the destination markets. Its objective was to evaluate the phenology and fruit quality of a 36-tree F2 population of the Venus cultivar by means of fruit and tree characterization both at harvest and postharvest. Each phenological event was registered twice a week when 80% of buds were at a given phenological stage. Fruit were harvested with a green-yellow background color and the parameters weight, background color, pulp firmness, soluble solids concentration and titratable acidity were evaluated. After 21 storage days at 4ºC and a shelf life period at 20ºC, the softening rate, background color change and mealiness were evaluated. Moreover, population heritability was estimated to determine the genetic and environmental variability. At harvest, total production, number of fruits and fruit mean weight harvested per tree were evaluated. The duration of phenological stages and full bloom date were determined. In general, most of the trees showed shorter initial and longer last phenological stages. The harvest period was variable and extended. As to productivity, only two trees (173 and 155) stood out for their fruit size. It was found that 67.5% (25 out of 37 trees) were mealy with a juiciness percentage smaller than 38.4%. Juiciness heritability was 52%, being directly influenced by the population genetics.
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Orfali, Dapueto Juan Carlos. "Evaluación de la calidad sensorial de duraznos y nectarinas [Prunus persica (L.) Batsch.] mediante métodos sensoriales y analíticos durante la etapa de maduración en el árbol." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/101888.

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Ramírez, Xandré Felipe, and Reyes Katiusca Tello. "Comportamiento de duraznos (Prunus persicae (L.) Batsch) de la variedad elegant lady, o'henry y nectarinos (Prunus persicae var. Nectarina (L.) Batsch) de la variedad summer brite, summer diamond y red glen, post-acondicionados." Tesis, Universidad de Chile, 2007. http://www.repositorio.uchile.cl/handle/2250/101876.

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León, Poblete Alejandra Elizabeth. "Evaluación de técnicas de postcosecha en nectarines var. Ruby Diamond mínimamente procesados en fresco." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/149673.

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Tesis presentada para optar al título profesional de Ingeniera Agrónoma y al grado de Magíster en Ciencias Agropecuarias, Mención Producción Frutícola
Los principales problemas observados en nectarines MPF se relacionan con el pardeamiento enzimático y el ablandamiento de la pulpa. Para lograr minimizar estos problemas en cascos de nectarines “Ruby Diamond”, se evaluó el uso de diferentes concentraciones gaseosas mediante el uso de atmósfera controlada. Los nectarines se procesaron a 8 ºC, partiendo con un lavado inicial, corte en cascos y lavado de éstos. Luego los cascos fueron envasados en recipientes de polietileno (200 g de fruta por recipiente) y depositados dentro de contenedores plásticos herméticos. Se aplicaron 5 tratamientos: 5%O2+0%CO2; 5%O2+5%CO2; 0%O2+0%CO2; 21%O2+10%CO2 y 21%O2+0%CO2 (testigo). Los cascos se almacenaron 9 días a 5 ºC, durante los cuales se analizó la actividad fisiológica, parámetros físicos y químicos, calidad sensorial y microbiológica, y contenido de compuestos aromáticos volátiles. Se presentó una disminución de la producción de etileno en todos los tratamientos desde el día del procesamiento (día 0) al día 3 de almacenamiento, con valores entre 2,4-1,1 y 1,3-0,4 μL kg-1·h-1, respectivamente, siendo menor en los cascos tratados con 21%O2 + 10%CO2 (0,4 μL·kg-1·h-1), en comparación con el testigo (1,3 μL·kg-1·h-1). Tras 5 días, todos los tratamientos fueron efectivos en disminuir la producción de etileno en comparación con el testigo. Los parámetros de saturación y tono del color presentaron diferencias significativas entre tratamientos sólo en el día 3 de almacenamiento, en donde los cascos tratados con 21%O2+10%CO2 alcanzaron menor saturación (35,6) y mayor tono (91,9) asociados a un menor pardeamiento. La firmeza y los parámetros químicos no fueron afectados significativamente por las concentraciones gaseosas utilizadas a lo largo del almacenamiento. En relación con el análisis microbiológico, todos los tratamientos tuvieron un efecto inhibitorio sobre el crecimiento de hongos y levaduras en comparación con el testigo y lograron mantener los recuentos de aerobios mesófilos y enterobacterias dentro de los límites establecidos por la legislación Chilena durante 9 días a 5 ºC. En los análisis sensoriales, los tratamientos 21%O2+10%CO2 y 0%O2+0%CO2 presentaron el menor pardeamiento y mejor apariencia hasta el día 7 de almacenamiento, sin conferir sabores extraños en el producto. A su vez todos los tratamientos mantuvieron una calidad sensorial aceptable durante 9 días a 5 °C. De los compuestos volátiles identificados en el perfil aromático de cascos de nectarines “Ruby Diamond”, el acetato de etilo presentó un alto contenido relativo en los cascos tratados con 0% O2 + 0% CO2 (61,0%) hacia el final del almacenamiento (día 9), lo que se relacionó con la aparición de olores y sabores desagradables en los cascos, coincidiendo con las evaluaciones del panel sensorial.
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Zúñiga, Paicho Hilda Catalina. "Efecto del aceite mineral y vegetal sobre la fijación de la escama de San José Diaspidiotus perniciosus (Comstock), en nectarin variedad Agust Red." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/153123.

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Memoria para optar al Título Profesional de Ingeniero Agrónomo
En Santiago, provincia de Maipo en la temporada 2014 en un huerto comercial sin tratamiento contra escama de San José, se evaluó la eficacia del aceite mineral Elf purespray 15 E y el extracto de linaza Bioil, ambos en concentraciones de 0,5; 0,7 y 1 % sobre la fijación de ninfas de escama en frutos de nectarin Var. August Red en precosecha. En el campo se seleccionaron los árboles y se asperjaron los aceites con las distintas concentraciones. La cosecha de los frutos fue a los 5, 10 y 15 días después de la aplicación. Posterior a la cosecha los frutos se llevaron al laboratorio Luciano Campos Street de la Universidad de Chile para la infestación con ninfas de escama de San José. Cada fruto fue infestado con 30 ninfas y colocado en ambiente controlado de luz y temperatura por un periodo de 10 días, luego de los cuales, se procedió a cuantificar la cantidad de escamas fijadas vivas en el fruto. Se consideró ninfa fijada viva a aquella que tiene inserto el estilete bucal en el tejido, color amarillo limón y cuerpo turgente. Se concluyó que el aceite vegetal Bioil spray tiene un efecto parcial en la fijación de la escama en todas sus concentraciones. El aceite mineral Elf purespray 15 E reduce de manera parcial a concentraciones de 0,5 y 0,7 por un periodo de 15 días y el tratamiento al 1% con aceite mineral reduce efectivamente la fijación de ninfas por un periodo de 10 días.
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Matamoros, Leal Marcela Paz. "Determinación de la vida útil de durazno y nectarines mínimamente procesados conservados bajo atmósfera modificada y refrigeración." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/112197.

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Memoria para optar al título profesional de Ingeniero Agrónomo Mención Agroindustria
La aplicación de mínimo proceso en duraznos y nectarines nace como una alternativa de comercialización que resulta atractiva para el consumidor, debido a su rápido y fácil consumo. Sin embargo, para lograr mantener esta fruta en condiciones adecuadas se están estudiando distintas técnicas de conservación, entre las cuales se encuentran el uso combinado de bajas temperaturas y de atmósfera modificada, técnicas que ayudan a mantener la calidad comercial de estos productos por más tiempo. El objetivo de este trabajo fue determinar la vida útil de duraznos de la variedad Royal glory y nectarines de las variedades Ruby diamond y August red, sometidos a mínimo proceso, mantenidos en dos tipos de envases y dos temperaturas de conservación. Las etapas a las que fue sometida la fruta fueron: lavado del fruto con agua potable a 5 ºC, pelado y cortado en casco, lavado de los cascos en agua potable a 5 ºC, envasado en dos tipos de bolsas de distinta permeabilidad a los gases B1 (11000-14000 mL CO2 m-2 d-1) y B2 (6000-9000 mL CO2 m-2 d-1) y conservadas a 5 y 8 ºC. Durante el almacenamiento se realizaron mediciones del rendimiento del proceso, la evolución de la atmósfera al interior de las bolsas, respiración, color, firmeza, sólidos solubles totales, pH, acidez titulable y análisis sensorial. El durazno Royal glory y el nectarín Ruby diamond, mostraron un comportamiento similar, presentando una mejor conservación a 5 y 8 º C en bolsa B1. En general no se observaron cambios significativos en los parámetros físicos, químicos y sensoriales, durante los días de almacenamiento. Sin embargo, los cascos envasados en bolsas B2 a 5 y 8 ºC generaron concentraciones de CO2 (38,7 y 51,0 %, respectivamente) 4 a 5 veces mayores que en las bolsas B1 (9,7 y 5,8 %), no logrando una atmósfera adecuada para la conservación de la fruta, causando un mayor deterioro al final de su vida útil. El nectarín variedad August red, presentó una alta acumulación de CO2 (31,6 – 44,0 %) y baja de O2 (1,0 %) en ambos tipos de bolsa (B2 y B1) y en ambas temperaturas de almacenamiento (5 y 8 ºC), generando una atmósfera superior a lo recomendado por diversos autores. Sin embargo, los cascos almacenados en B2 a 5 y 8 ºC fueron los que presentaron mayores cambios físicos, químicos y sensoriales, lo que demostraría que exponer la fruta a estas condiciones por un tiempo prolongado, podría generar el deterioro más rápido de la fruta.
The objective of this study was to determine the shelf life of peaches and nectarines undergoing minimal process, and kept in two types of packages and two storage temperatures. The steps for the preparation of the fruit were: washing of whole fruit with water at 5 ºC, peeled and sliced, washed slices with potable water at 5 ºC, packaged in two types of bags of different gas permeability B1(11000-14000 mL CO2 m-2 d-1) and B2 (6000-9000 mL CO2 m-2 d-1) and stored at 5 ºC and 8 ºC. During storage, color, firmness, total soluble solids, pH, titratable acidity, O2 consumption, CO2 production respiration and sensory analysis were evaluated The Royal glory cv. peach and Ruby diamond cv. nectarin showed better conservation at 5 y 8 ºC in bag B1, where adequate concentrations of CO2 and O2 were obtained. Important changes were not observed in quality during storage. However the fruit in bag B2 at 8 and 5 ºC failed to provide a suitable atmosphere for the preservation of the fruit, causing further deterioration at the end of shelf-life. The August Red variety failed to generate packaging requirements, in any bag or temperature used, producing CO2 and O2 concentrations outside the suggested ranges. Because of these conditions the slices stored in B2 at 5 and 8 °C were affected in most of the physical, chemical and sensory parameters evaluated. Therefore, under the conditions used in the present study, this variety is not recommended for prolonged storage.
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González, Cruz Marta Camila. "Nectarines, uva de mesa y ensaladas de frutas mínimamente procesadas almacenadas en atmósfera controlada." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/149596.

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Tesis para optar al título profesional de Ingeniera Agrónoma y al grado de Magister en Ciencias Agropecuarias, Mención Producción Frutícola
El procesamiento de los nectarines cv. Summer Fire afecta su calidad en términos de color, firmeza de la pulpa y calidad funcional. El objetivo de este estudio fue evaluar el efecto de diferentes porcentajes de O2 + CO2 (21 + 0 (aire); 0 + 0; 5 + 0; 5 + 5; 5 + 10 y 21 + 10) sobre la calidad de cascos de nectarines. Los cascos fueron sanitizados y almacenados en atmósfera controlada y evaluados luego de 3, 5, 7 y 9 días a 5 °C. Los resultados indicaron que la aplicación de 5% de O2 + 10% de CO2 mantuvo estable el tono y la firmeza de pulpa, aumentó la concentración de fenoles totales y la capacidad antioxidante total, mientras que redujo los recuentos de aerobios mesófilos por 9 días en comparación al aire. Todas las concentraciones gaseosas aplicadas a excepción del aire redujeron la actividad de la PPO. Por lo que bajas concentraciones de O2 y moderadas de CO2 mantienen la calidad de nectarines MPF por 9 días a 5 °C.
The processing of Summer Fire cv. nectarine caused changes in color, flesh firmness and functional quality. The purpose of this study was to evaluate the effect of different gas percentages (O2 + CO2: 21 + 0 (air); 0 + 0; 5 + 0; 5 + 5; 5 + 10 and 21 + 10) on the quality of nectarine wedges. Wedges were sanitized and stored under different gas concentration and evaluated after 3, 5, 7 and 9 days at 5 °C. Results indicate that 5% de O2 + 10% de CO2 maintained hue angle and firmness of the flesh. Increased total phenolic contents and total antioxidant capacity and decreased mesophilic counts were found during 9 days compared to samples in air. All gas concentrations except air reduced PPO activity. Therefore low O2 and moderate CO2 concentrations maintain the quality of fresh cut nectarines for 9 days at 5 °C.
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Books on the topic "Nectarinos"

1

development, Organisation for economic co-operation and. Peaches and Nectarines. Washington: Organization for Economic Cooperation & Development, 2010.

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Costa, Lionel Castro. Nectario, nectario, nectario: Introducción a la poesía (ensayo). San Juan, Rep. Argentina: s.n., 1993.

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Nicolson, Susan W., Massimo Nepi, and Ettore Pacini, eds. Nectaries and Nectar. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7.

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Costa, Lionel Castro. Poetica de tesis: Nectario II (ensayo). San Juan, Rep. Argentina: s.n., 1994.

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Prologue from Ochrid:: The Personal Editon for Fr. Nectarios Trevino. Republished by: Anno Domini Press, The Plains, VA: Original: Lazarica Press, 1985.

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St. Nectarios of Pentapolis and the island of Aegina: The monastic ideal. Brookline, Mass: Holy Cross Orthodox Press, 2011.

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Okie, W. R. Handbook of peach and nectarine varieties: Performance in the southeastern United States and index of names. [Washington, D.C.]: U.S. Dept. of Agriculture, Agricultural aResearch Service, 1998.

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Aranguren, Fernando Ignacio Parra, and Nectario Andrade Labarca. Ensayos de derecho administrativo: Libro homenaje a Nectario Andrade Labarca. Caracas, Venezuela: Tribunal Supremo de Justicia, 2004.

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Byther, Ralph S. Disease and insect spray schedule for home orchards: Peaches, nectarines, apricots, plums, cherries, flowering prunus. [Pullman]: Cooperative Extension, Washington State University, 1995.

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Meador, Daniel B. Illinois commercial spray schedule, 1985: Apples, peaches, nectarines, apricots, plums, pears, and cherries : supplement to circular 1151. Urbana, Ill: University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service, 1985.

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Book chapters on the topic "Nectarinos"

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Sastry, K. Subramanya, Bikash Mandal, John Hammond, S. W. Scott, and R. W. Briddon. "Prunus persica var. nucipersica or var. nectarina (Nectarine)." In Encyclopedia of Plant Viruses and Viroids, 2011–16. New Delhi: Springer India, 2019. http://dx.doi.org/10.1007/978-81-322-3912-3_754.

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Siddiq, Muhammad, Allan Liavoga, and Ibrahim Greiby. "Peaches and Nectarines." In Handbook of Fruits and Fruit Processing, 535–49. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118352533.ch30.

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Lanan, Michele. "Extrafloral Nectaries." In Encyclopedia of Social Insects, 1–5. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-90306-4_44-1.

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Lanan, Michele. "Extrafloral Nectaries." In Encyclopedia of Social Insects, 371–75. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-28102-1_44.

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Pacini, Ettore, and Susan W. Nicolson. "Introduction." In Nectaries and Nectar, 1–18. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_1.

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Bernardello, Gabriel. "A systematic survey of floral nectaries." In Nectaries and Nectar, 19–128. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_2.

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Nepi, Massimo. "Nectary structure and ultrastructure." In Nectaries and Nectar, 129–66. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_3.

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Pacini, Ettore, and Massimo Nepi. "Nectar production and presentation." In Nectaries and Nectar, 167–214. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_4.

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Nicolson, Susan W., and Robert W. Thornburg. "Nectar chemistry." In Nectaries and Nectar, 215–64. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_5.

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Thornburg, Robert W. "Molecular biology of the Nicotiana floral nectary." In Nectaries and Nectar, 265–88. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5937-7_6.

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Conference papers on the topic "Nectarinos"

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"FACTOR DE RIEGO PARA NECTARINOS." In XXXIV Congreso Nacional de Riegos. E.T.S. de Ingeniería Agronómica, Universidad de Sevilla, 2016. http://dx.doi.org/10.21151/cnriegos.2016.a03.

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Font, D., T. Palleja, M. Tresanchez, M. Teixido, and J. Palacin. "Preliminary study on color based nectarine variety classification." In 2012 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2012. http://dx.doi.org/10.1109/i2mtc.2012.6229514.

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Koptur, Suzanne. "Urban ants and plants: Ant visitation to extrafloral nectaries and antiherbivore defense?" In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.91870.

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Munera, Sandra, Nuria Aleixos, Jose Manuel Amigo, Sergio Cubero, Pau Talens, and Jose Blasco. "Diferentes aplicaciones de la imagen hiperespectral para garantizar la calidad de nectarina." In X Congreso Ibérico de Agroingeniería = X Congresso Ibérico de Agroengenharia. Zaragoza: Servicio de Publicaciones Universidad, 2019. http://dx.doi.org/10.26754/c_agroing.2019.com.3421.

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Calixto Soares, Eduardo Calixto. "Ant foraging pattern influenced by the variation in the attractiveness of extrafloral nectaries." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.110715.

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Toca, Hajredin, and Thanas Ruci. "Powdery mildew, caused by Podosphaera pannosa, of some Peach and Nectarine varieties in Albania." In The 4th International Virtual Conference on Advanced Scientific Results. Publishing Society, 2016. http://dx.doi.org/10.18638/scieconf.2016.4.1.384.

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"Estimation of crop water stress in a nectarine orchard using high-resolution imagery from unmanned aerial vehicle (UAV)." In 21st International Congress on Modelling and Simulation (MODSIM2015). Modelling and Simulation Society of Australia and New Zealand, 2015. http://dx.doi.org/10.36334/modsim.2015.f12.park.

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Reports on the topic "Nectarinos"

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Takle, Bryn, Diana Cochran, and Kenny McCabe. Evaluation of Peach and Nectarine Production in High Tunnel and Field Plots. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/farmprogressreports-180814-1602.

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Cochran, Diana. Second-Year Evaluation of Peach and Nectarine Production in High Tunnels and Field Plots. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-1948.

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You might also be interested in the extended bibliographies on the topic 'Nectarinos' for particular source types:
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