Organic Eprints
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The Landrace no. 16
Get PDFTable of contents
1. News from Landsorten
2. General Assembly and Professional Day in Landsorten on 25 February
3. Another project ensures further development of Landorten
4. Staff and seed situation in Landsorten
5. Purple wheat prevents dementia
7. New rust protection for organic grai
Genetic diversity of common bunt in Europe
No full textCommon bunt of wheat has re-gained attention in recent years. In this study, the pathogen population biology of the species complex Tilletia spp., causing common bunt in wheat, was studied in order to infer epidemiological patterns. Three single-spore isolates with Swedish origin were de-novo sequenced using PacBio, Sequel II technology to be used as reference genomes. For the main study, forty-four Tilleta isolates, with origin across several countries in Europe and one from Iran, were inoculated to wheat and used in virulence screening. To understand the within species diversity, the spore morphology of each isolate was determined. From each of the 44 inoculated wheat samples, one ear was selected, and three bunts were carefully collected. The DNA from each bunt was extracted and sequenced using Illumina NovaSeq 6000. The first question was to investigate the differentiation between the two species within the common bunt complex. The SNP-based data analysis revealed no differentiation between samples with different spore morphology. The results support the hypothesis that the fungal pathogens, previously divided into different species based on spore morphology, belong to the same species, Tilletia caries (syn. T. laevis). The analysis of population genetic differences revealed no differentiation between samples from Europe, whereas samples from Iran clustered as a separate group. This finding indicates that Europe potentially could be a separate epidemiological zone. Finally, the analysis identified genetic diversity within an ear, indicating the potential for multiple infections within a plant
Органічне бджільництво. Принципи та практичне впровадження
No full textЦя брошура знайомить із ключовими принципами та методами органічного бджільництва. Особливу увагу приділено можливостям профілактики хвороб і боротьби зі шкідниками. Тому вона призначена як для початківців, так і для досвідчених бджолярів, які хочуть вести господарство відповідно до органічних принципів
Jeunes pousses pour le bio
No full textS'établir ben bio - quelques perspectives pour les jeunes gens dans l'agriculture biologqiue
Vin sans alcool sur la table
No full textLe vin désalcoolisé est dans le vent. Pour son élaboration, l’UE autorise un procédé qui a déjà fait ses preuves. Cela préoccupe aussi la Confédération et la branche suisse du vin bio
Organic variety trials for winter triticale in Luxembourg
No full textThis dataset is part of the database compiled as an outcome of Work Area 1 in project OrganicYieldsUP. Variable definitions can be found here: https://doi.org/10.5281/zenodo.15276083
National organic variety trials for winter triticale from 2019-2024 in Luxembourg
Organic variety trials for spring oats in Luxembourg
No full textThis dataset is part of the database compiled as an outcome of Work Area 1 in project OrganicYieldsUP. Variable definitions can be found here: https://doi.org/10.5281/zenodo.15276083.
National organic variety trials for spring oats from 2019-2024 in Luxembourg
Organic variety trials for spring barley in Luxembourg
No full textThis dataset is part of the database compiled as an outcome of Work Area 1 in project OrganicYieldsUP. Variable definitions can be found here: https://doi.org/10.5281/zenodo.15276083.
National organic variety trials for spring barley from 2019-2024 in Luxembourg
A Preliminary Study of Ozonation in the Outdoor Production of Strawberries (Fragaria X ananassa) to Suppress Gray Mold (Botrytis cinerea)
No full textGray mold (Botrytis cinerea) causes significant damage and yield losses in strawberry cultivation. Fungicides are widely used to control the disease. However, there is an increasing need for alternative treatments. We tested the use of micro-sprinklers versus a tractor mounted sprayer
for application of ozonated water to outdoor strawberry crops. Different application frequencies, ozone bubble sizes and volumes of ozonated water sprayed on the plants were also tested. The results showed that yields of healthy fruits by fresh weight and number were not increased by
ozone treatment compared to no treatment (2022: ozone macro bubbles treatment once a week: mean 3.43 kg SD ± 0.93, 269.7 fruits SD ± 54.9 - no treatment: mean 4.11 kg SD ± 0.37, 329.7 fruits SD ± 41.0). Fungicide use increased the fresh weight of healthy fruits and the number of fruits compared to ozone treatments (2022: fungicide treatment mean: 6.43 kg SD ± 1.12, 400.7 fruits SD ± 95.6). In these experiments, the application of ozonated water using both these methods didn’t suppress gray mold. The low efficiency of ozone in controlling the disease could be attributed to several factors. An optimization of the ozone water application method is needed
Foraging preferences of dairy cows grazing on contrasted multispecies swards
Get PDFSelective foraging has been reported in many wild and domesticated ruminants, yet modern livestock production systems rarely allow animals to express this natural behaviour. However, it is assumed that giving livestock the opportunity for forage selection positively influences their health and welfare. This study investigated the forage selection of individual dairy cows on pasture. Over one grazing season, a herd of 23 dairy cows was observed grazing on an experimental pasture in Switzerland, which consisted of different plant mixtures. The cows had unrestricted access to all mixtures and their individual foraging behaviour was documented by scan sampling. The four mixtures were rich in grasses (G), grasses and legumes (L), grasses and tanniferous plants (T), and grasses and herbs containing essential oils (E). The results revealed a partial preference for the L mixture at herd level across all grazing rotations (P ≤ 0.001). All mixtures were frequented, indicating that the herd utilized the array of available plants. Individual preferences varied and not all cows followed the herd's average pattern. Individual preferences shifted throughout the grazing season, but the pattern of this variability differed between animals. The findings demonstrate that dairy cows actively select from different pasture plants and that preferences vary between individuals and over time. Importantly, average herd preferences do not accurately represent the behaviour of all cows. Individual preferences should be considered when aiming to meet the foraging needs of all herd members