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| Renaud, E.N.C; Lammerts van Bueren, E.T.; Myers, J. R; Paulo, M.J.; Eeuwijk, F.A.; Zhu, N.; Juvik, J.A.. |
| Organic agriculture requires cultivars that can adapt to organic crop management systems without the use of synthetic pesticides as well as genotypes with improved nutritional value. The aim of this study encompassing 16 experiments was to compare 23 broccoli cultivars for the content of phytochemicals associated with health promotion grown under organic and conventional management in spring and fall plantings in two broccoli growing regions in the US (Oregon and Maine). The phytochemicals quantified included: glucosinolates (glucoraphanin, glucobrassicin, neoglucobrassin), tocopherols (d-, c-, a-tocopherol) and carotenoids (lutein, zeaxanthin, b-carotene). For glucoraphanin (17.5%) and lutein (13%), genotype was the major source of total variation; for... |
| Tipo: Journal paper |
Palavras-chave: Vegetables Crop health; Quality; Protection. |
| Ano: 2014 |
URL: http://orgprints.org/26801/1/2788.pdf |
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| Renaud, E.N.C; Lammerts van Bueren, E.T.; Jiggins, J.; Maliepaard, C.; Paulo, J.; Juvik, J.A.; Myers, J.R.. |
| The genotype by environment interaction study of broccoli, amongst others demonstrates that traits of a cultivar are sometimes ranked differently when grown in an organic production system compared to a conventional system. This has strong implications for breeding strategies. The breeders interviewed acknowledged that more attention on abiotic and biotic stress resistance in a broccoli breeding programme is needed which is in accordance with the farmers' varietal requirements. The first findings of the field trials show that cultivar performance is influenced by season and region, and differences in treatment (organic versus conventional management). The field trials showed that there are cultivars with broad adaptation such as "Green Goliath". These... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2010 |
URL: http://orgprints.org/18927/4/18927.pdf |
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| Renaud, E.N.C; Lammerts van Bueren, E.T.; Paulo, M.J.; Eeuwijk, F.A.; Juvik, J.A.; Hutton, M.G.; Myers, J. R. |
| To determine if present commercial broccoli cultivars meet the diverse needs of organic management systems, such as adaptation to low N input, mechanical weed management, and no chemical pesticide use, and to propose the selection environments for crop improvement for organic production, we compared horticultural trait performance of 23 broccoli cultivars (G) under two management (M) systems (organic and conventional) in two regions of the United States (Oregon and Maine), including spring and fall trials. In our trials, location and season had the largest effect on broccoli head weight, with Oregon outperforming Maine, and fall trials outperforming spring plantings. M main effects and G × M interactions were often small, but G × M × E (location and... |
| Tipo: Journal paper |
Palavras-chave: Vegetables Breeding; Genetics and propagation Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/26803/1/2789.pdf |
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