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| Registros recuperados: 1.409 | |
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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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| Colomb, B.; Desclaux, D.; Debaeke, P.; Justes, E.; Burger, P.. |
| Low-input production schemes adopted in organic or conventional farms require crop varieties that combine good product quality and high yield stability under non optimal environmental conditions (Gooding et al., 1999). These traits are not yet found among the durum wheat genotypes available in France. Consequently the cultivation of this crop is hardly successful in stockless organic farms in southern France, which are characterised by very low nitrogen resources. Some hopes emerged with the identification of new durum wheat pure lines with a high grain protein content in breeding experiments conducted near Montpellier in 2001 and 2002. The aim of the present work was to confirm and elucidate the origin of the enhanced protein performance of these new... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Farm nutrient management. |
| Ano: 2004 |
URL: http://orgprints.org/6491/1/colomb.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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| Registros recuperados: 1.409 | |
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