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| Registros recuperados: 808 | |
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| Lammerts van Bueren, E.T.. |
| The ability of the organic farmer’s agronomic toolbox to reduce the susceptibility of a potato crop to late blight is limited, certainly under the Dutch climatic conditions. Conventional breeding programs do not generate either a sufficient number nor appropriate types of resistant varieties for organic systems; and a separate breeding program for the limited area of organic potato production is simply not viable. Therefore, all concerned forces have joined together in an umbrella program called Bioimpuls for organic potato improvement. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2010 |
URL: http://orgprints.org/16767/1/2301.pdf |
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| Singh, Jai Prakash; Mansata, Bharat; Nellithanam, Jacob; Kundaji, Deepika. |
| Jaiprakash Singh (aka JP) is an outstanding organic farmer breeder of several important and widely cultivated crops like rice, wheat, pigeon pea and mustard. He started this work more than 2 decades ago, and presently has 480 varieties of rice, 120 varieties of wheat, 40 varieties of pigeon pea, 3 varieties of mustard; also some chillies and tomatoes. These varieties are ‘developed’ or evolved over many crop cycles through a process of multi-generational selection for distinct features and qualities, including grain yield, pest resistance, special nutritive values, flavour, fragrance, grain size, shape, colour, etc. The varieties bred by JP are particularly useful for many farmers still following or reverting to indigenous organic system in India. JP’s 5... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/24237/2/24237.pdf |
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| Rosenfeld, Simon; Parzies, Heiko; Grando, Stefania; Ceccarelli, Salvatore. |
| In a decentralized and participatory plant breeding (PPB) program, in contrast to conventional plant breeding, farmers select from a large number of genotypes over a number of cycles in several locations. As selection is for location-specific adaptation a PPB program based on, for example, four stages of selection, generates large, unbalanced data sets. With common spreadsheet software it is not possible, or it is at least very cumbersome to extract all the information, particularly the one that is related to genotype x environment (GE) interactions. Therefore, there is a need for an information system that makes it as easy as possible to retrieve and compare data over all given factors in the PPB-program. Due to a lack of education and financial resources... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Breeding; Genetics and propagation. |
| Ano: 2010 |
URL: http://orgprints.org/27718/1/Poster%20revised%20Aug%202011.pdf |
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| Hansen, Preben Klarskov; Willas, Jakob; Kristensen, Kristian. |
| A screening programme for crop variety competitiveness would ideally be based on only a few, non-destructive measurements of key growth traits. In this study we measured the weed suppressive ability of 79 varieties of spring barley in two ways: 1) directly, by weed coverage assessments under weedy conditions at three Danish locations in 2002-2004, and 2) indirectly, by non-destructive measurements of varietal growth traits under weed-free conditions in 17 other experiments in Denmark in 2001-2003. Based on just four varietal growth traits (reflectance, leaf area index, leaf angle and culm length), we successfully developed a method for indexing the weed suppressive ability of spring barley varieties. The suppressive index ranged from 12% in ‘Lux’ and 55%... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions Weed management Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/11294/2/11294.pdf |
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| Shahid, Shaila; Md. Hossain, Zakir. |
| Seed-the source of life. And woman holds the seed with the hope of new life. Instead of producing diverse seed from homestead agriculture, women are engaged traditionally to select seed, drying, preserving, protecting during storage, saving them from any economical crisis of the family. To ensure the seed quality and the perfect storage place & methods, women hold the vast knowledge. They decide the quantity and variety of seed to be saved and the method of preservation. Seed selection by women is a continuous activity. Working in the fields, they observe the plants and decide which seeds to select. They identify plants of good quality on the basis of size, grain formation and their resistance to pests and insects. Here a woman looks at the seed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/23982/3/23982.pdf |
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| Joernsgaard, B.; Christiansen, J.L.; Kuptsov, N.. |
| Lupin as a grain crop has been restricted in growing area to more continental conditions due to their indeterminate growth form, which in maritime Northern European areas causes excessive vegetative development, late and uneven ripening and lodging. However, new reduced branching types provides better possibilities for adaptation to these conditions, and preliminary results indicates potential seed yields up to 5-6 tons per ha in the narrowed leafed lupins (Lupinus angustifolius) and an acceptable stable and early ripening. Due to full susceptibility to anthracnose (Colletotrichum gloeosporioides) in white (L. albus) and yellow (L. luteus) their introduction in these environments is doubtful. In these growing areas Botrytis (Botrytis cinerea) and fusarium... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2002 |
URL: http://orgprints.org/1639/1/Adaptation_lupin_Island_2002_presentation.pdf |
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| Joernsgaard, B.; Christiansen, J.L.; Kuptsov, N.. |
| Lupin as a grain crop has been restricted in growing area to more continental conditions due to their indeterminate growth form, which in maritime Northern European areas causes excessive vegetative development, late and uneven ripening and lodging. However, new reduced branching types provides better possibilities for adaptation to these conditions, and preliminary results indicates potential seed yields up to 5-6 tons per ha in the narrowed leafed lupins (Lupinus angustifolius) and an acceptable stable and early ripening. Due to full susceptibility to anthracnose (Colletotrichum gloeosporioides) in white (L. albus) and yellow (L. luteus) their introduction in these environments is doubtful. In these growing areas Botrytis (Botrytis cinerea) and fusarium... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2003 |
URL: http://orgprints.org/1636/1/Adaptation_lupin_Island_2002_proceedings.pdf |
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| Döring, Thomas F.; Crowley, Oliver; Wolfe, Martin. |
| An Organic Research Centre project is examining how diversity-based tools can assist in the on-farm improvement of organic wheat. Successful organic crop production requires varieties that are resistant to diseases, competitive against weeds, and effective at scavenging nutrients. Yet conventional plant breeding has largely neglected organic systems by breeding varieties exclusively for high input conditions. As a consequence, organic producers currently do not have enough choice of plant varieties for organic conditions. One way to expand the choice is to create plant diversity anew and subject it to natural selection on organic farms. After several generations the dominating plants would be better suited to organic systems. This idea is being tested... |
| Tipo: Newspaper or magazine article |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2011 |
URL: http://orgprints.org/19777/1/2011.Doring_et_al.OrgFarm.pdf |
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| Konvalina, Petr; Capouchova, Ivana; Stehno, Zdenek; Moudry, Jan. |
| Organic farmers look to the possibilities of growing neglected crops, such as the spring forms of hulled wheat – einkorn, emmer and spelt – for support in developing the organic farming system. In 2008, 169 landraces from the gene bank at the Crop Research Institute in Prague were tested on certifi ed organic plots. The experiment was aimed at fi nding suitable varieties for the organic farming system. In summary, our fi ndings show that einkorn (Triticum monococcum L.) and emmer wheat [Triticum dicoccum Schrank (Schuebl)] are resistant to powdery mildew and brown rust, spelt wheat (Triticum spelta L.) is less resistant to these two diseases, and the intermediate forms of bread wheat are very sensitive to such infestation. The varieties evaluated incline... |
| Tipo: Journal paper |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2010 |
URL: http://orgprints.org/20768/1/JOA.pdf |
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| Weedon, Odette; Brumlop, Sarah; Heinrich, Sven; Boening, Andreas; Elsner, Maren; Finckh, Maria R.; Lammerts van Bueren, E.T.; Nuijten, E.; Messmer, Monika; Baresel, Jörg Peter; Goldringer, I.; Péter, Mikó; Megyeri, Maria; Borgen, Anders; Rasmussen, Søren K.; Pearce, Bruce; Wolfe, Martin. |
| As environmental and agronomic conditions are heterogeneous between and within locations, diversity within varieties or crop populations should increase adaptability to the changing and variable range of growing environments. The additional pressure of plant genetic diversity loss, has driven novel breeding approaches such as Composite Cross Populations (CCPs) and other genotype mixtures, thereby increasing both intra- and inter-varietal diversity and ensuring a “wider adaptation” capacity for crop varieties (Döring et al., 2011). A winter wheat (Triticum aestivum L.) CCP was created by intercrossing 20 varieties in 2001, through collaboration with the Elm Farm Research Centre and the John Innes Institute. In 2005, a seed batch of the F4 was equally... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Biodiversity and ecosystem services Breeding; Genetics and propagation. |
| Ano: 2016 |
URL: http://orgprints.org/30323/1/Weedon%20et%20al..pdf |
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| Alte Kartoffelsorten In der Schweiz wurden früher diverse Landsorten von Kartoffeln angebaut, welche heute fast vollständig vom Markt verschwunden sind. Die Stiftung Pro Specie Rara widmet sich der Erhaltung alter Kurturpflanzen und Nutztierrassen. Im Rahmen des Projektes "Beschreibung, Sanierung und Nutzung alter Kartoffelsorten" (NAP 02-53) untersucht das FiBL die Anbaueignung ausgewählter alter Kartoffelsorten im Bioanbau. Untersucht werden einerseits Anbaueigenschaften wie Krankheitsanfälligkeit und Ertrag, und andererseits Qualitätsaspekte wie Aussehen, Geschmack und Lagerfähigkeit der Kartoffelknollen. Ziel ist es, die interessantesten alten Kartoffelsorten wieder auf den Markt zu bringen. |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2024 |
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| Registros recuperados: 808 | |
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