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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

WEED RESEARCH

ISSN

0043-1737

e-ISSN

—

Svazek periodika

64

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

376-383

Kód UT WoS článku

001264320100001

EID výsledku v databázi Scopus

2-s2.0-85197672817