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1دورية أكاديمية
المؤلفون: Maximiliano Dini, Maria do Carmo Bassols Raseira, Marie-Noëlle Corre, Véronique Signoret, Bénédicte Quilot-Turion
المصدر: Agronomy; Volume 13; Issue 5; Pages: 1235
مصطلحات موضوعية: Prunus persica var. nucipersica (L. ex Borkh.) C.K.Schneid, brown rot, host–pathogen interaction, HPLC analysis, phenolic acids, flavonoids, terpenoids
جغرافية الموضوع: agris
الوصف: Despite the fact that brown rot is the most economically important disease in stone fruits, the relationship between mechanical stress and infection has never been explored. Thus, to explore this connection, we carried out four experiments linking nectarine wounding and M. laxa infection. First, we evaluated a possible systemic reaction of the fruit to wounding that could impact the M. laxa infection. Afterward, we study the impact of the fruit in the environment on M. laxa colonies grown in vitro. Subsequently, we tested the disease susceptibility of fruits inoculated with M. laxa placed in the same environment as wounded fruits. Finally, in the fourth experiment, the effect of wounding on the subsequent fruit infections was evaluated at three fruit stages. As a result, we observed that there was no evidence of a fruit systemic reaction to wounding and M. laxa infection. In the study related to the impact of the fruit in the environment of M. laxa, the findings suggest that M. laxa “perceived” the fruit’s presence, resulting in accelerated in vitro growth. Moreover, the presence of wounded fruits in the box increased the susceptibility to brown rot. Inoculated fruits showed a delayed and reduced infection 7 h after being wounded, during the second stage of fruit development (15–19 weeks after full bloom). Moreover, a red reaction associated with inoculation was detected immediately after the fruits were wounded. Nine phenolic compounds exclusively related to the red areas were extracted, while six other compounds were present in higher proportions. These compounds may be actively involved in plant–pathogen interactions and the activation of metabolic pathways involved in nectarine susceptibility/resistance to M. laxa.
وصف الملف: application/pdf
العلاقة: Horticultural and Floricultural Crops; https://dx.doi.org/10.3390/agronomy13051235Test
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2دورية أكاديمية
المؤلفون: Sharma, D.P.1, Negi, Pankaj, Sharma, Sumeet
المصدر: Indian Journal of Horticulture 76(2):226-232. 2019
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3دورية أكاديمية
المساهمون: Baldi, Elena, Quartieri, Maurizio, Sorrenti, Giovambattista, Toselli, Moreno
مصطلحات موضوعية: Prunus persica var. nucipersica, nutrient remobilization, macronutrient, micronutrient, compost
الوصف: Understanding nutrient dynamics within a peach orchard is fundamental to the development of accurate nutrient management practices. The present study investigated the nutrient uptake and redistribution in a 14-years-old commercial orchard in the Po valley. At the end of the experiment, trees were harvested, biomass and organ nutrient concentration were determined. Skeleton and roots accounted for the highest plant biomass, followed by fruits at harvest, pruned wood and abscised leaves; thinned fruits were less than 1 kg tree-1. The difference between the amounts of nutrients in leaves sampled in summer and in autumn (at abscission) was used to estimate the fraction of nutrients remobilized during the vegetative season inside the tree. The decrease of N, P, S, Cu, Mn and Zn concentration in abscised, compared to summer-sampled leaves was the result of the translocation of nutrients into fruits and storage organs. Nutrient circulation in a commercial nectarine orchard was calculated by determination of the fractions of each nutrient recycled (sum of nutrients in abscised leaves, thinned fruits and pruned wood) and remobilized (sum of nutrients in fruits at harvest, roots and skeleton). In our experimental conditions, on average, nectarine Stark RedGold showed an annual request of (in kg ha-1) 100, 17, 73, 129, 16, and 6 of N, P, K, Ca, Mg and S, respectively. More than half of these quantities were recycled in the orchard and returned back to the soil; consequently, if the nutrient use efficiency is maximized, the fertilization of nectarine requires only small amount of external inputs.
وصف الملف: STAMPA
العلاقة: volume:28; issue:3; firstpage:1; lastpage:12; numberofpages:12; journal:ITALUS HORTUS; https://hdl.handle.net/11585/849740Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85124136845; https://www.soihs.it/IH2/year_2021_volume_28_issue_3/evaluation_of_nutrients_removed_and_recycled_in_a_commerci.aspxTest
الإتاحة: https://doi.org/10.26353/j.itahort/2021.3.0112Test
https://hdl.handle.net/11585/849740Test
https://www.soihs.it/IH2/year_2021_volume_28_issue_3/evaluation_of_nutrients_removed_and_recycled_in_a_commerci.aspxTest -
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المؤلفون: Dimitar Vassilev
المصدر: Acta Scientifica Naturalis. 9:65-73
مصطلحات موضوعية: nectarines, cultivars, late spring frost, Prunus persica var. nucipersica, yield, Microbiology
الوصف: The study was conducted during the period 2017 – 2018 at the Agricultural Experimental Station – Khan Krum, Shumen region. The experimental orchard was established in the spring of 2011. The following nectarine cultivars were studied: Fantasia, Golden Grand, Morsiani 51, Cassiopeia and Fairlane grafted on a seedling rootstock (Elberta) and clonal GF 677, as well as the frost – resistant dessert-type cultivar Redhaven. In the period 2017 – 2018, negative temperatures were reported, at the end of March and at the beginning of April (-3.6°C and -5.0 °C respectively)which coincided with the full blooming phenological phase; as a result of which the blossoms froze (76 – 100%). A relatively low percentage of frozen blossoms was observed in cultivars grafted on rootstock GF 677. In 2017, the blossom damage was relatively low and yields were obtained, unlike in 2018. Negative spring temperatures had a negative impact on productivity if blossom damage percentage exceeded 80%.
وصف الملف: application/pdf
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd7b8ee347c6c0fc3190760405f39a43Test
https://doi.org/10.2478/asn-2022-0007Test -
5دورية أكاديمية
المؤلفون: Matias, Rosana Gonçalves Pires, Silva, Danielle Fabíola Pereira da, Silva, José Osmar da Costa e, Oliveira, João Alison Alves, Cremasco, João Paulo Gava, Bruckner, Cláudio Horst
المصدر: Revista Ceres. December 2015 62(6)
مصطلحات موضوعية: Prunus persica var. nucipersica, 'Josefina', 'Rubro- Sol', pós-colheita
الوصف: Os frutos de nectarineiras geralmente apresentam tamanho pequeno, polpa firme, aroma e sabor bem acentuados. O conhecimento dos cultivares disponíveis, em relação a sua qualidade, bem como a sua adaptação aos locais de cultivo é extremamente importante, por possibilitar a escolha dos materiais com melhor potencial de mercado. Assim, este trabalho teve como objetivo avaliar os cultivares de nectarineira 'Josefina' e 'Rubro- Sol', cultivados sob condições de clima subtropical, em Viçosa, MG. Os experimentos foram realizados na Universidade Federal de Viçosa durante três safras e conduzidos em esquema de parcelas subdivididas, dentro do delineamento inteiramente casualizado. Foram colhidos 30 frutos de cada cultivar e avaliadas as características massa de fruto, diâmetros longitudinal e transversal, firmeza, teor de sólidos solúveis, acidez titulável e teores de ácido ascórbico e de carotenoides. Verificaram-se diferenças significativas entre as médias dos anos de avaliação quanto à firmeza e aos teores de ácido ascórbico e de carotenoides. O cultivar 'Rubro- Sol' destacou-se pela maior firmeza da polpa e o 'Josefina' pelo maior teor de sólidos solúveis e menor acidez titulável, com frutos mais doces.
وصف الملف: text/html
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6دورية أكاديمية
المؤلفون: Rosana Gonçalves Pires Matias, Danielle Fabíola Pereira da Silva, José Osmar da Costa e Silva, João Alison Alves Oliveira, João Paulo Gava Cremasco, Cláudio Horst Bruckner
المصدر: Revista Ceres, Vol 62, Iss 6, Pp 621-626 (2015)
مصطلحات موضوعية: Prunus persica var. nucipersica, 'Josefina', 'Rubro- Sol', pós-colheita, Agriculture (General), S1-972, Biotechnology, TP248.13-248.65
الوصف: RESUMO Os frutos de nectarineiras geralmente apresentam tamanho pequeno, polpa firme, aroma e sabor bem acentuados. O conhecimento dos cultivares disponíveis, em relação a sua qualidade, bem como a sua adaptação aos locais de cultivo é extremamente importante, por possibilitar a escolha dos materiais com melhor potencial de mercado. Assim, este trabalho teve como objetivo avaliar os cultivares de nectarineira 'Josefina' e 'Rubro- Sol', cultivados sob condições de clima subtropical, em Viçosa, MG. Os experimentos foram realizados na Universidade Federal de Viçosa durante três safras e conduzidos em esquema de parcelas subdivididas, dentro do delineamento inteiramente casualizado. Foram colhidos 30 frutos de cada cultivar e avaliadas as características massa de fruto, diâmetros longitudinal e transversal, firmeza, teor de sólidos solúveis, acidez titulável e teores de ácido ascórbico e de carotenoides. Verificaram-se diferenças significativas entre as médias dos anos de avaliação quanto à firmeza e aos teores de ácido ascórbico e de carotenoides. O cultivar 'Rubro- Sol' destacou-se pela maior firmeza da polpa e o 'Josefina' pelo maior teor de sólidos solúveis e menor acidez titulável, com frutos mais doces.
وصف الملف: electronic resource
العلاقة: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2015000600621&lng=en&tlng=enTest; https://doaj.org/toc/2177-3491Test
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7دورية أكاديمية
المصدر: Revista Brasileira de Fruticultura. October 2011 33(1)
مصطلحات موضوعية: Prunus persica var. vulgaris, Prunus persica var. nucipersica, mineral nutrition, phenology
الوصف: The study evaluated the leaf nutritional levels of peach and nectarine trees under subtropical climate in order to improve the fertilization practices. The experiment was carried out in São Paulo state University, Botucatu, São Paulo State, Brazil. The experimental design consisted of subdivided plots, in which plots corresponded to cultivars and subplots to the leaf sample periods. The evaluated peach cultivars were: Marli, Turmalina, Precocinho, Jubileu, Cascata 968, Cascata 848, CP 951C, CP 9553CYN, and Tropic Beauty, and that of nectarine was 'Sun Blaze'. The sample periods were: after harvest, plants in vegetative period; dormancy; beginning of flowering and fruiting (standard sample). Results indicated significant variations in the levels of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn for the sampling period and in N, Ca, Mg, S, B, Fe and Mn levels for the cultivars.
وصف الملف: text/html
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8دورية أكاديمية
المؤلفون: Leonel, Sarita, Tecchio, Marco Antonio
المصدر: Revista Brasileira de Fruticultura. October 2011 33(1)
مصطلحات موضوعية: Prunus persica var. nucipersica, Prunus persica var. vulgaris, épocas, clima
الوصف: O trabalho avaliou a produção e a sazonalidade de cultivares de pessegueiro e nectarineira, com e sem o uso de cianamida hidrogenada, em dois ciclos de produção (2009 e 2010). O experimento foi desenvolvido na Faculdade de Ciências Agronômicas, UNESP, Câmpus de Botucatu-SP, localizado nas seguintes coordenadas geográficas: latitude 22º51' 55" S, longitude 48º26' 22" O e 810 m de altitude. O tipo climático predominante é o temperado quente (mesotérmico), com chuvas no verão e seca no inverno. A aplicação de cianamida hidrogenada e óleo mineral resultou numa antecipação na data do início da colheita para todas as cultivares. Também houve uma concentração no período produtivo, diminuição no ciclo de produção e aumento na produção. A avaliação do ciclo da poda à colheita sob florescimento espontâneo evidenciou que as cultivares mais precoces foram: Precocinho (81,5 dias) e Conserva 693 (87 dias). As mais tardias foram: Turmalina (141,5 dias) e CP 951 C (134,5 dias). Com o uso da cianamida hidrogenada e do óleo mineral, o ciclo da poda à colheita permitiu a caracterização das cultivares mais precoces: Precocinho (87,5 dias) e a nectarineira Sun Blaze (95,5 dias). As mais tardios foram: Diamante Mejorado (126,5 dias) e CP 951 C (120 dias). As cultivares Turmalina (20,2 kg planta-1), Conserva 693 (20,75 kg planta-1) e Aurora 1 (15,65 kg planta-1) foram as mais produtivas .
وصف الملف: text/html
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9دورية أكاديمية
المصدر: Revista Brasileira de Fruticultura. March 2011 33(1)
مصطلحات موضوعية: Prunus persica var. nucipersica, Prunus persica var. vulgaris, clima, desempenho agronômico
الوصف: Tendo em vista que o conhecimento do comportamento de uma cultura, em determinada região, determina o sucesso da produção, a qualidade do produto final e a garantia de aceitação pelo mercado consumidor, o presente trabalho teve como objetivo avaliar a produção e as características físicas e físico-químicas de frutos de cultivares de pessegueiro e nectarineira, cultivados ou não tradicionalmente em São Paulo, mas que possam vir a apresentar uma opção de diversificação aos fruticultores do município de Botucatu-SP, e regiões climáticas semelhantes. O experimento foi realizado durante três ciclos agrícolas: 2006/2007, 2007/2008 e 2008/2009, na Faculdade de Ciências Agronômicas, UNESP, Botucatu-SP. O clima da região é do tipo mesotérmico, Cwa, ou seja, subtropical úmido com chuvas no verão e seca no inverno. As cultivares de pessegueiro avaliadas foram: Turmalina, Cascata 968, Cascata 848, Cascata 587, Conserva 693, Precocinho, Diamante Mejorado, Oro Azteca, CP-9553CYN e Tropic Beauty. A cultivar de nectarineira avaliada foi 'Sun Blaze'. Foram avaliadas características de produção e qualidade dos frutos. Os resultados obtidos permitiram concluir que a cultivar Turmalina foi a mais produtiva. As cultivares Cascata 968 e Diamante Mejorado apresentaram o maior teor de sólidos solúveis, e as cultivares Cascata 587 e CP 9553 CYN, a maior relação sólidos solúveis/acidez titulável.
وصف الملف: text/html
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10رسالة جامعية
المؤلفون: Alex, Ludovic
المساهمون: Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Sica Centrex, Mas Pierre Faivre, 66440 Torreilles, Brigitte Brunel
المصدر: https://dumas.ccsd.cnrs.fr/dumas-04033943Test ; Sciences du Vivant [q-bio]. 2022.
مصطلحات موضوعية: Prunus persica var. nucipersica, Low pesticide inputs, Agroecosystem evaluation, Flower strips, Integrated biological control, Economic sustainability, Réduction d’intrants phytosanitaires, Évaluation agro-écosystémique, Bande fleurie, Lutte biologique, Durabilité économique, [SDV]Life Sciences [q-bio]
الوصف: Designed during Ecopeche I (2013 – 2018) program, nectarine systems have been planted in 2019 as part of a multi-site experimentation of innovating combinations of levers which allow to reduce synthetic phytosanitary products use. This study presents annual evaluation of the 4 systems set up at Sica Centrex, some of which contain agro-ecological infrastructures such as flower strips to attract auxiliaries or plastic sheeting to manage weeds. Agronomic indicators (related to growth, tree productivity, pest pressure and treatment frequency indices (TFI)), environmental performance (about interactions between flower strip, auxiliaries and pests) and economic results (including costs and amortizations) are gathered to draw up a comparative assessment of these systems. At the end of this season 2022, pesticide reduction reached 100% in ECO, 88% in AB and 33% in ZR compared to reference conduct. Compared to reference marketable yield, ECO had a loss of 44%, AB of 48%, and ZR of 8%. Alternative systems with organic amendment and/or alternative protection have accumulated stunted growths for lower yields compared to conventional conduct. Substitution of chemical pesticides by biopesticides induces synthetic TFI drops, but does not reach equal protection.Flower strips had been sown 3 years ago and are invaded for more than half by weeds. Only four species (Lobularia maritima, Calendula officinalis, Anthemis tinctoria and Achylea millefolium) remain to maintain good surfaces, qualified as the hardiest species of the mixture. There is a positive correlation between diversification loss of flower strips and weed invasion ; flower strip attraction is mainly linked to available floral surface. Flower strips have attracted auxiliaries and promoted biocontrol service of aphid suppression, for effective but late management, and does not prevent from damages. Flower strips offer an action lever against aphid as important as there is currently no fully effective biopesticides. Observations of hoverfly predation all around the ...
العلاقة: dumas-04033943; https://dumas.ccsd.cnrs.fr/dumas-04033943Test; https://dumas.ccsd.cnrs.fr/dumas-04033943/documentTest; https://dumas.ccsd.cnrs.fr/dumas-04033943/file/2022_PVD_Alex.pdfTest
