The effect of mowing date on the development of common ragweed (Ambrosia artemisiifolia L.)
Journal Title: Ecocycles - Year 2015, Vol 1, Issue 1
Abstract
Common ragweed (Ambrosia artemisiifolia L.) is native to North America; it was introduced into Europe by contaminated agricultural goods from the end of the 19th century. Since then due to its excellent ecological adaptability it has invaded whole Europe. Common ragweed is not only a noxious weed causing yield losses in agricultural crops; it invades disturbed urban areas and its highly allergenic pollen induces allergic rhinitis to sensitive people. In urban areas mowing is the most widely used mean of ragweed control. Plants were mowed early (12 June) at BBCH 33 (3 visibly extended internode), late mowed plots were cut off on (25 July) .inflorescence visible BBCH 51 Mowing twice happened on 12 June and 25 July. At mean plant density of 91 plant/m2 number of female flowers was 150/plant on an average, while that of the male inflorescences were 1676. Mowing treatments significantly decreased the above ground fresh biomass and plant height compared to the none-mowed control. The early mowing treatment did not decrease significantly the number of female flowers. Twice mowed and late mowed treatments significantly decreased the number of female flowers, that of the male inflorescences. Further studies are required to improve seed production decreasing effect of mowing treatments.
Authors and Affiliations
Zsuzsa Basky
Keywords
Related Articles
- EP ID EP175108
- DOI http://dx.doi.org/10.19040/ecocycles.v1i1.19
- Views 133
- Downloads 0
New method of regional sustainable energy strategies
This article aims to increase knowledge and find the best practices on how sustainable energy management (SEM) can be boosted and implemented at a regional level. It presents the main results from the RESGen (RES Generat...
Selective response of Ricinus communis seedlings to soil borne Rhizoctonia infection
Seedlings of Ricinus communis tolerated soil-borne Rhizoctonia infection in strain dependent manner. There was no connection revealed between pathogenicity of strains and their origin or taxonomic position, however, the...
Aquaponics business in Europe: some legal obstacles and solutions
Aquaponics is a rapidly emerging agricultural practice, which combines recirculating aquaculture systems (the RAS technology) with the soil-less (hydroponic) cultivation of vegetables. The advantages in terms of producti...
Chemical plant protection. Past. Present. Future?
After the discovery (1938) and huge commercial and popular success of the insecticide DDT (Figure 1, Nobel Prize for its discoverer Paul Müller in 1948) a number of chemical companies started to develop new pesticide act...
EU policies: New opportunities for aquaponics
Aquaponics is a modern and sustainable food production technology. This paper reviews different policies relevant to aquaponics in order to create a clear picture on how aquaponics can contribute to achieving European go...