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| Registros recuperados: 236 | |
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| Lammerts van Bueren, E. T.; Jones, S.S.; Tamm, L.; Murphy, K.M.; Myers, J. R; Leifert, C.; Messmer, M.. |
| It is estimated that more than 95% of organic production is based on crop varieties that were bred for the conventional high-input sector. Recent studies have shown that such varieties lack important traits required under organic and low-input production conditions. This is primarily due to selection in conventional breeding programmes being carried out in the background of high inorganic fertilizer and crop protection inputs. Also, some of the traits (e.g., semi-dwarf genes) that were introduced to address problems like lodging in cereals in high-input systems were shown to have negative side-effects (reduced resistance to diseases such as Septoria, lower protein content and poorer nutrient-use efficiency) on the performance of varieties under organic and... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Vegetables Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2011 |
URL: http://orgprints.org/17861/1/LammertsvanBueren_et_al_NJAS_wheat%2C_tomato%2C_broccoli.pdf |
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| Hohmann, Pierre. |
| Leguminosen wie die Erbse verbessern die Bodenfruchtbarkeit. Sie sind daher eine wichtige Komponente im biologischen Anbau. Fehlende Resistenzen gegen bodenbürtige Erreger in modernen Sorten führen jedoch vermehrt zu Ertragseinbussen. Die Erreger überleben lange im Boden und können sich mit der Zeit anreichern. In Deutschland werden mittlerweile bei Erbsen Anbaupausen von bis zu 10 Jahren empfohlen. Damit es in der Schweiz erst gar nicht so weit kommt, beschäftigt sich das FiBL intensiv mit der «Leguminosenmüdigkeit ». Bereits liegen vielversprechende Forschungsergebnisse zu Resistenzen, Mischkulturen oder Kompost vor. Gesucht werden noch Landwirte, die unerklärliche Ertragseinbussen beim Anbau von Leguminosen, vor allem Erbsen, beobachten und daran... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2016 |
URL: http://orgprints.org/30830/1/bioaktuell_1016_light%20%285%29.pdf |
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| Trotz steigender Nachfrage nach Salaten aus dem „Bio-Sektor“ stagniert der heimische Anbau. Grund ist die fehlende Anbausicherheit. Krankheiten wie der Falsche Mehltau und abiotische Schadfaktoren führen häufig zu starken Ertragsverlusten. Auf dem Markt fehlen Sorten, die eine große Anbausicherheit im ökologischen Anbau mit einer guten Produktqualität vereinen. In den BÖLN-Projekten 2810OE064/069 wurden erstmals neue Züchtungsmethoden erprobt. Dabei zeigte sich, dass die Arbeit mit Kreuzungspopulationen und der Anbau von Liniengemischen geeignete Lösungswege sind, um Ertragsstabilität zu erreichen. Möglich wird dies durch eine höhere Variabilität durch die Durchmischung des Bestandes bzw. die Genetik, wodurch eine variablere Reaktion auf Stressoren gegeben... |
| Tipo: Project description |
Palavras-chave: Vegetables Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2023 |
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| Rillig, Matthias C.; Aguilar‐Trigueros, Carlos A.; Camenzind, Tessa; Cavagnaro, Timothy R.; Degrune, Florine; Hohmann, Pierre; Lammel, Daniel R.; Mansour, India; Roy, Julien; van der Heijden, Marcel G.A.; Yang, Gaowen. |
| The Tansley review by Ryan & Graham (2018) provided a welcome critical perspective on the role of arbuscular mycorrhizal (AM) fungi in large‐scale industrial agriculture, with a focus on cereals (wheat, Triticum aestivum). They conclude that there is little evidence that farmers should consider the abundance or diversity of AM fungi when managing crops. We welcome many of the points made in the paper, as they give an opportunity for self‐reflection, considering that the importance of AM fungi in agroecosystems is often taken for granted. However, we suggest that it is too early to draw the overall conclusion that the management of AM fungi by farmers is currently not warranted. We offer the following points to contribute to the discussion. The first... |
| Tipo: Journal paper |
Palavras-chave: Soil biology Cereals; Pulses and oilseeds Biodiversity and ecosystem services Breeding; Genetics and propagation Crop health; Quality; Protection Farm nutrient management. |
| Ano: 2019 |
URL: http://orgprints.org/34929/1/Rillig_et_al-2019-New_Phytologist.pdf |
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| Döring, Thomas F.; Pautasso, Marco; Finckh, Maria R.; Wolfe, Martin. |
| The co-evolution of plants with their pests and diseases is a major driving force in evolution in nature. As a consequence, many pests and pathogens have multiple functions involved in survival on host populations. As a result of this continuous co-evolution, plant pests and pathogens have been selected for high reproduction rates, because of the low probability of an individual being able to find or infect a compatible host plant. For their part, host plants in natural ecosystems are often interspersed among other plant species and show wide and changing variation among individuals for genes affecting specific or non-specific resistance to each of the many pathogens that may attack them. Throughout the plant world there are dynamic and unstable equilibria... |
| Tipo: Book chapter |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2012 |
URL: http://orgprints.org/19803/1/Doering%20chapter%2003.pdf |
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| Das hier beschriebene Verbundvorhabens umfasst folgende Teilprojekte: FKZ 12NA017, FKZ 12NA128. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/id/saved_search/1551. Ziele im hier vorgestellten Verbundvorhaben sind die Entwicklung hocheffizienter und kostengünstiger Nachweismethoden zur sicheren und schnellen Bestimmung des Befalls mit Tilletia-Arten sowie Ustilago nuda bei Weizen und Gerste. Diese Methoden sollen neben der Bestimmung der Befallshöhe eine eindeutige Identifizierung der Pathogene, insbesondere auch bei Mischinfektionen von T. caries und T. controversa, ermöglichen. Dieses Ziel soll durch die Entwicklung und Optimierung von... |
| Tipo: Project description |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2023 |
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| In dem Vorhaben sollen die aktuellen Wintergerstesorten aus Deutschland und Österreich sowie fortgeschrittene Zuchtstämme der ’Forschung & Züchtung Dottenfelderhof’ (>F7) hinsichtlich ihrer Anfälligkeit gegenüber der Streifenkrankheit Pyrenophora graminea (Ito et Kurib.) [Drechslera graminea (Rabenh. ex. Schlech.) Shoemaker] unter den natürlichen Bedingungen des Ökologischen Landbaus evaluiert werden. Das Projekt erstreckt sich über drei Vegetationsjahre (2011/12, 2012/13 und 2013/14). Im ersten Vegetationsjahr werden die zu prüfenden Sorten auf dem Standort 'Dottenfelderhof', Bad Vilbel intensivem Sporenflug ausgesetzt, indem sie in direkter Nachbarschaft zu zwei hoch befallenen ’Infektionsträgersorten’ angebaut werden. Für die Infektion wurde nur... |
| Tipo: Project description |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2023 |
URL: http://orgprints.org/19292/3/BLE%2D2810OE073_Vorhabenbeschreibung.pdf |
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| Liu, Q; Borgen, Anders; Trust, Beta. |
| The phytochemicals including flavonoids and phenolic acids mainly contained in the outer layer of the kernels are key factors responsible for the biofunctionality of whole grains. The phytochemical profiles of twelve grain samples comprising 6 wheats, 3 barleys and 3 oats were studied for comparative evaluation of their antioxidant properties. Total phenolic content (TPC) and antioxidant activities (DPPH and ORAC) of the grain extracts were measured. The bound phenolic acids were identified and quantified using HPLC and mass spectrometry. The flavonoids in different grain were analyzed using HPLC and tandem mass spectrometric techniques. TPC in acidified methanol extracts ranged from 164 to 226, 264-391, and 308-331 mg/100 g for wheat, oats and barley,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2009 |
URL: http://orgprints.org/22150/7/22150.pdf |
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| Borgen, Anders; Kristensen, Lars. |
| Seed lots normally become contaminated by spores of the seed borne common bunt (Tilletia tritici) during harvest of fields with infected plants. To demonstrate the relation between the number of infected plants in the field and the resulting number of spores in the harvested seed lot, a fixed number of infected tillers were placed in uncontaminated wheat fields. Two field experiments show that the number of spores in the seed lot is proportional to the number of infected plants in the field. Only 3% of the spores from the infected plants in the field end up in the seed lot after harvest with a combine harvester. However, only few spores in a seed lot is enough to establish infection in the next year field, and with a threshold of 10 spores/g seed which... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2010 |
URL: http://orgprints.org/22161/7/22161.pdf |
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| Registros recuperados: 236 | |
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