|
|
|
|
|
| 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 |
| |
|
|
| Weedon, Odette; Lanvers, J.; Wersebeckmann, V.; Purwien, T.; Heinrich, Sven; Finckh, Maria R.. |
| Evolutionary breeding through the introduction of composite cross populations (CCPs)encourages intra-specific diversity and increases diversity in the agricultural landscape. Increased genetic diversity in crops may help to buffer both biotic and abiotic stresses and will play an increasingly important role in unpredictable climatic conditions become more unpredictable (Østergård et al. 2009). A number of CC winter wheat populations, commercial varieties and CCP line selections were tested at the University of Kassel, under differing N input levels in order to test past adaptation and suitability to differing fertilisation levels. The CCPs have been managed since 2005 under both organic and conventional conditions without conscious selection. Genetically... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Breeding; Genetics and propagation. |
| Ano: 2017 |
URL: http://orgprints.org/31615/1/Anpassung%20und%20Eignung%20von%20Composite%20Cross%20Winterweizen-.pdf |
| |
|
| |
|
|
| Weedon, Odette; Haak, Jette; Heinrich, Sven; Finckh, Maria R.. |
| Alternative breeding approaches in organic agriculture have started to address pressing issues such as the lack of appropriate plant varieties particularly suited to cope with higher biotic and abiotic stresses, generally found in low-input and organic production systems. This challenge, coupled with the additional pressure of loss of plant genetic diversity, has driven novel breeding approaches such as Composite Cross Populations (CCPs) and other genotype mixtures, thereby increasing both intra- and inter-varietal diversity. This High genetic Diversity (Hi-D) approach is relevant to organic agricultural systems for two reasons; firstly the availability of diverse germplasm improves chances of finding germplasm suited for low-input conditions as found in... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Biodiversity and ecosystem services Breeding; Genetics and propagation. |
| Ano: 2015 |
URL: http://orgprints.org/30320/1/AbstractWeedonetal.pdf |
| |
|
| |
|
|
| Weedon, Odette; Haak, Jette; Brumlop, Sarah; Heinrich, Sven; Finckh, Maria R.. |
| A lack of appropriate crop varieties specifically bred for the higher biotic and abiotic stresses experienced in organic and low-input systems, has driven novel breeding approaches such as Composite Cross Populations (CCPs) and other genotype mixtures, thereby increasing both intra- and inter-varietal diversity. The creation of CCPs using carefully chosen parental varieties, coupled with the ability of the populations to adapt to local environments means that these populations are well suited for low-input and organic agricultural systems (Phillips and Wolfe, 2005). COBRA (Coordinating Organic plant BReeding Activities for Diversity) aims to “support and develop plant breeding and seed production in Europe by increasing the use of plant material with High... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems Cereals; Pulses and oilseeds Biodiversity and ecosystem services Breeding; Genetics and propagation. |
| Ano: 2015 |
URL: http://orgprints.org/30322/1/COBRA_Abstract_Weedon_et_al..pdf |
| |
|
|
| Weedon, Odette; Haak, Jette; Brumlop, Sarah; Finckh, Maria R.; Heinrich, Sven. |
| Thirteen winter wheat composite cross populations originating from one population but with differing histories over six years and three reference varieties were compared for yield, disease occurrence, as well as phenotypic diversity. The populations performed similarly and often better than the reference varieties in terms of yield and had lower incidence of disease. The populations are also phenotypically diverse and differ among each other, indicating that they have maintained a high degree of diversity over time and in varying locations, but most likely also diverged from each other. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2015 |
URL: http://orgprints.org/26934/1/26934_weedon.pdf |
| |
|
|
| Weedon, Odette; Haak, Jette; Brumlop, Sarah; Finckh, Maria R.; Heinrich, Sven. |
| Thirteen winter wheat composite cross populations originating from one population but with differing histories over six years and three reference varieties were compared for yield, disease occurrence, as well as phenotypic diversity. The populations performed similarly and often better than the reference varieties in terms of yield and had lower incidence of disease. The populations are also phenotypically diverse and differ among each other, indicating that they have maintained a high degree of diversity over time and in varying locations, but most likely also diverged from each other. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2015 |
URL: http://orgprints.org/30328/1/26934_weedon.pdf |
| |
|
|
| Weedon, Odette; Brumlop, Sarah; Heinrich, Sven; Finckh, Maria R.. |
| Increasingly uncertain climatic conditions threaten the security and stability of agricultural systems (Østergård et al., 2009; Döring et al., 2011) and a better understanding of genotype x environment (GxE) interactions is needed to shift the agricultural focus from manipulating environments to grow crops to creating crops that fit into the environment (Østergård et al., 2009; Lammerts van Bueren et al., 2012). GxE interactions play a pivotal role in assessing yield stability of crops and the challenge of changing climatic conditions necessitates that new crop cultivars should have broad adaptability, stable agronomic performance over a range of environments and management systems and generally high yields (Akcura et al., 2006). The High genetic Diversity... |
| 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/33021/1/Weedon%20et%20al.2016_EUCARPIA.pdf |
| |
|
|
|
