Consulta: creatorFacets:"Bertholdsson, Nils-Ove"
Registros recuperados: 2
Data/hora: 12/06/2024 14:28:24

Evolutionary changes of weed competitive traits in winter wheat composite cross populations in organic and conventional farming systems.
Provedor de dados: 21
Autores: Bertholdsson, Nils-Ove; Weedon, Odette; Brumlop, Sarah; Finckh, Maria R.
Seedling root and shoot growth in hydroponics and allelopathic activity using a bioassay have been studied in very diverse populations of winter wheat grown under either organic or conventional conditions for a number of generations and subjected only to natural selection. The study was conducted on seeds from generation 6 (F6) and 11 (F11) from three composite cross populations (CCPs) produced by the Organic Research Centre in the UK. Since the F5 the populations were maintained under organic and conventional conditions in Germany. Two parallel populations were created from each CC, resulting in a total of six organic and six conventional CCPs. The sets of parallel populations showed similar evolutionary trends indicating that the observed changes are...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Biodiversity and ecosystem services Breeding; Genetics and propagation.
Ano: 2016
URL: http://orgprints.org/33017/1/1-s2.0-S1161030116300910-main.pdf

Screening for Barley Waterlogging Tolerance in Nordic Barley Cultivars (Hordeum vulgare L.) Using Chlorophyll Fluorescence on Hydroponically-Grown Plants
Provedor de dados: 21
Autores: Bertholdsson, Nils-Ove.
Waterlogging can reduce crop yield by 20-50% or more, and lack of efficient selection methods is an obstacle in plant breeding. The methods currently used are mainly indices based on germination ability in Petri dishes and leaf chlorosis in plants grown in waterlogged soils. Cultivation in oxygen-depleted nutrient solution is the ultimate waterlogging system. Therefore methods based on root growth inhibition and on fluorescence in plant material hydroponically grown in oxygen-depleted solution were evaluated against data on biomass growthbiomass accumulation in waterlogged soils. Both traits were correlated with waterlogging tolerance in soil, but since it was easier to measure fluorescence, this method was further evaluated. A selection of F2 plants with...
Tipo: Journal paper
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2013