Effect of gap size in grass cover on the percentage and rate of dandelion achene germination

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F24%3A10177334" target="_blank" >RIV/00027006:_____/24:10177334 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/wre.12657" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/wre.12657</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/wre.12657" target="_blank" >10.1111/wre.12657</a>

Result language
angličtina
Original language name
Effect of gap size in grass cover on the percentage and rate of dandelion achene germination
Original language description
In Central Europe, Taraxacum officinale Weber ex Wiggers (dandelion) is an economically important admixture in grasslands. Its spread is supported by its ability to germinate in gaps in grass stands. In a 5-year experiment, we examined the effect of gap size on the germination rate and percentage of dandelion achenes. Each year, achenes were sown in late spring and mid-summer in 90 square plots of six sizes, ranging from 2.5 x 2.5 cm to 80 x 80 cm. The plots were placed on a 2 x 6 m experimental area covered with low-cut lawn. The course of germination varied among individual replicates depending on the weather. In each replicate, however, the rate of germination increased, and the percentage of germinated achenes decreased with increasing gap size. Differences in germination paralleled differences in the microclimate on the soil surface of plots where humidity decreased and temperature increased with plot size. The ultimate cause of this difference was the variance among gaps of different sizes in proportion to which the total area of the gap surface is insolated during the day. The colonization of lawns by dandelion is supported by the formation of small gaps in grass stands.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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