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| Registros recuperados: 10.106 | |
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| Ayala,Marlene; Lang,Gregory A. |
| Stored reserves are critical for the early spring growth of reproductive and vegetative sinks in sweet cherry (Prunus avium L.). To study the distribution of carbon storage reserves on new, highly productive hybrid rootstocks in sweet cherry, an experiment was established using 5-yr-old cv. 'Regina' on the semi-vigorous rootstock 'Gisela®6' ('GI®6'). Using whole-canopy enclosure chambers, five trees were pulse-labeled three times with high levels of 13CO2 during the fall. At leaf drop, leaves, buds, wood, bark and roots were sampled for gas chromatography-mass spectrometry (GC-MS) analysis. The storage organs with the highest percentages of excess 13C atoms were the roots and the older wood in the trunks, branches and buds. During the spring, newly... |
| Tipo: Journal article |
Palavras-chave: Fruit set; 'Gisela®' rootstock; Sink; Spring remobilization stage I; Storage reserves; Transition. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000200006 |
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| Vizziano Cantonnet,Denise; Mateo,Magdalena; Alberro,Andrés; Barrios,Florencia; Fostier,Alexis. |
| The aim was to investigate the major C21 steroids produced by spermiating white croaker Micropogonias furnieri (Sciaenidae) in order to establish the potential mediator of gamete maturation in males of this species. The testes steroid production at the spawning season was identified incubating the 3H-17-hydroxy-4-pregnene-3,20-dione precursor through thin layer chromatography, high pressure liquid chromatography, enzymatic oxydation, acetylation and immunochemistry analyses. 17,20β-Dihydroxy-4-pregnen-3-one (17,20β-P) and 11β,17,21-Trihydroxy-4-pregnene-3,20-dione (cortisol) were the main metabolites produced. Contrary to what we expected, 17,20β,21-Trihydroxy-4-pregnen-3-one was not detected. Circulating levels of 17,20β-P were undetectable in immature... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Male gonad; Maturing steroids; Reproduction; Steroid synthesis; White croaker. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000300613 |
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| Thewes,Fabio Rodrigo; Both,Vanderlei; Brackmann,Auri; Ferreira,Daniele de Freitas; Wagner,Roger. |
| ABSTRACT: Apple volatile aroma depends of complex interaction among organic compounds. The aim of the present study was to evaluate the effect of 1-methylcyclopropene (1-MCP) application on volatile profile and quality on 'Royal Gala' apples produced in Southern Brazil and stored under controlled atmosphere condition (CA; 1.0kPa O2+1.2kPa CO2; 0.5±0.1°C; 94±1% relative humidity). Volatile profile was determined after eight month of CA storage plus 7 days of shelf life via solid-phase microextraction (HS-SPME) and analyzed by gas chromatography coupled to mass spectrometer. In the volatile profile were identified 8 esters, 11 alcohols, 6 aldehydes, 6 acids, 2 ketones, 1 ether and 1 terpene. 1-MCP application reduced significantly the main volatile compounds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica; Solid phase microextraction; Fruits; GC/MS. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202259 |
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| Canali, S.; D'Oppido, D.. |
| "Improving soil conservation and resource use in organic cropping systems for vegetable production through introduction and management of Agro-ecological Service Crops” (SoilVeg) is an innovative European research project, led by the Italian Agricultural Research Council (CRA) and funded, at European level, by Core Organic Plus. It has kicked off last March 2015, in Matera, the Italian city recently awarded European Capital of Culture: for 3 years, 9 European countries and 14 partner Institutions will be working together with the aim to study the better management of Agro-ecological Service Crops. |
| Tipo: Newspaper or magazine article |
Palavras-chave: "Organics" in general. |
| Ano: 2015 |
URL: http://orgprints.org/30501/1/SOILVEG_1st%20Press%20release.pdf |
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| Bachinger, Johann; Bloch, Ralf; Reckling, Moritz; Stein-Bachinger, Karin. |
| Acht Felder der Versuchsstation des ZALF in Müncheberg in Nordostdeutschland wurden 1993 als Modellbetrieb mit einer Leguminosen-betonten Fruchtfolge auf Ökologischen Landbau umgestellt. Je Feld wurde 1995 ein Monitoringversuch mit je 5 Ernte- bzw. Beprobungsparzellen angelegt. Neben Ernteerhebungen erfolgte eine jährliche Krumenbeprobung zur Untersuchung der Entwicklung der Gehalte an organischem Kohlenstoff (Corg) und Stickstoff (Norg) sowie der P- und K-Verfügbarkeit. Eine deutliche Zunahme der Corg-Gehalte zeigte sich nur auf den Flächen mit Texturklasse Sand. Dagegen stiegen die Norg-Gehalte auch auf den besseren Böden, allerdings in geringerem Maße, an. Die P-Verfügbarkeit pegelte sich nach einem anfänglichen Rückgang auf Werte der Versorgungsstufe... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Nutrient turnover; Soil. |
| Ano: 2015 |
URL: http://orgprints.org/27175/1/27175_bachinger.pdf |
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| Reckling, Moritz; Döring, Thomas F.; Bloch, Ralf; Stein-Bachinger, Karin; Bachinger, Johann. |
| Auf dem Modellbetrieb für Ökolandbau in Müncheberg wurden von 1993 bis 2013 Feldversuche zur Ermittlung der Ertragsstabilität von zwei Körnerleguminosen (Schmalblättrige Lupine und Futtererbse), Wintergetreide (Roggen und Weizen), Hafer und Silomais durchgeführt. Zwei orthogonale Datensätze wurden genutzt um die temporären Ertragsschwankungen der Einzelkulturen zu vergleichen. Beide Körnerleguminosen zeigten die geringste Ertragsstabilität von allen untersuchten Kulturen. Dies war sowohl für varianzbasierte als auch für regressionsbasierte Stabilitätsparameter der Fall. Gründe für die geringe Ertragsstabilität sind unzureichend bekannt. Es müssen Strategien für das Management entwickelt werden, um mit den großen Schwankungen umzugehen. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems Cereals; Pulses and oilseeds Crop husbandry. |
| Ano: 2015 |
URL: http://orgprints.org/26912/1/26912_reckling.pdf |
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| Strady, Emilie; Harmelin-vivien, Mireille; Chiffoleau, Jean-francois; Veron, Alain; Tronczynski, Jacek; Radakovitch, Olivier. |
| The transfer of 210Po and 210Pb in the food web of small pelagic fishes (from phytoplankton and zooplankton to anchovy Engraulis encrasicolus and sardine Sardina pilchardus) is investigated in the Gulf of Lion (GoL). We present original data of 210Po and 210Pb activity concentrations, C and N stable isotope ratios, measured (i) from different size classes of phytoplankton and zooplankton during spring and winter in different environments of the GoL, and (ii) in two fish species. Significant spatial patterns based on 210Po, 210Pb activity concentrations and 210Po/210Pb ratios in the different plankton size classes are evidenced by hierarchical clustering, both in spring and winter. This variability, also observed for C and N stable isotopes ratios, is... |
| Tipo: Text |
Palavras-chave: Po-210; Pb-210; Phytoplankton; Zooplankton; Pelagic fishes; Mediterranean Sea. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00255/36609/35264.pdf |
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| Yemadje,Pierrot Lionel; Guibert,Hervé; Blavet,Didier; Olina,Jean-Paul; Chevallier,Tiphaine; Deleporte,Philippe; Bernoux,Martial. |
| Soil respiration is a major component of the global carbon cycle which links ecosystems and the atmosphere. To evaluate the reaction of soil respiration after wetting, during a dry period, soil respiration and associated environmental factors were measured over a 24-h period, during the dry season in North Cameroon after wetting the soil. Over 24-h, soil respiration rates followed a quadratic curve during the day coming close to linear at night, while soil temperature and moisture together explained at least 73 % of the variations during the 24-h observed. These soil respiration rates increased during the morning, peaked between 11h00 and 13h00 and then decreased gradually to the minimum around 06h00. These observations were used to propose a method for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diel soil respiration; Soil temperature; Soil moisture. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000500452 |
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| Couto Filho,Cristovão Colombo de Carvalho; Saliba,Eloísa de Oliveira Simões; Rodriguez,Norberto Mario; Barbosa,Geraldo Sérgio Senra Carneiro; Freitas,Regeane Martins de; Resende,Matheus Pinheiro Diniz. |
| The objective of this study was to evaluate the flow of nitrogenous compounds, protein degradability, rumen degradation of total carbohydrate and organic matter and microbial efficiency in heifers subjected to diets containing corn silage, sugarcane or Tifton. For this purpose, the 2,6-diaminopimelic acid (DAPA) technique was adopted and analytical procedures for amino acids by HPLC were adapted. Six rumen-fistulated Holstein-Zebu heifers with 480 kg of initial BW and at 24 months of age kept in individual tie stalls were assigned to two 3 × 3 Latin squares. Omasal digesta dry matter and microbial dry matter flows were determined using the isolated, purified and enriched lignin (LIPE®) and DAPA markers, respectively. Isolated bacteria from rumen showed on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn silage; Flow of nitrogen compounds; HPLC; Microbial efficiency; Protein degradability; Sugarcane. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000500180 |
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| Patton, Jason R.; Goldfinger, Chris; Morey, Ann E.; Ikehara, Ken; Romsos, Chris; Stoner, Joseph; Djadjadihardja, Yusuf; Udrekh,; Sri Ardhyastuti,; Gaffar, Eddy Zulkarnaen; Vizcaino, Alexis. |
| In order to investigate the possibility of a long-term paleoseismic history from offshore sedimentary records in Sumatra, we collected 144 deep-sea sedi-ment cores in the trench and in lower slope piggyback basins of the Sumatra accretionary prism. We used multibeam bathymetry and seismic reflection data to develop an understanding of catchment basins, turbidity current pathways, and depositional styles, as well as to precisely locate our gravity cores, piston cores, Kasten cores, and multicores. We use detailed physical property data, including computed tomographic X-ray, gamma density, magnetic susceptibility, grain-size analysis, faunal analysis, and smear slides, to evaluate the turbidite stratigraphy and sedimentology at each site. We use radiocarbon... |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00351/46229/46162.pdf |
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| Registros recuperados: 10.106 | |
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