A comparison of two North-American asters invading in central Europe

Jedlička, Jan; Prach, Karel

doi:10.1016/j.flora.2006.01.002

Cited by 13 publications

(3 citation statements)

References 18 publications

(22 reference statements)

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“…Germination was also enhanced in treatments with potassium nitrate. Although the results showed a higher percentage of germinated achenes in relation to our initial research, these results differ from the Jedlička and Prach [ 30 ] study which suggested very high germination, even 100%, for seeds that were germinated immediately after collection, after storage at room temperature for 5 months or after storage at 5 °C for 5 months, at 25/15 °C day–night temperature regime. Our study has been unable to demonstrate such a high percentage of germination for seeds that have been stored at a temperature between 2.3 and 6.9 °C.…”

Section: Discussioncontrasting

confidence: 99%

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Factors Affecting Seed Germination of the Invasive Species Symphyotrichum lanceolatum and Their Implication for Invasion Success

Nešić

Obratov–Petković

Skocajic

et al. 2022

Plants

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Invasive species Symphyotrichum lanceolatum (Willd.) G. L. Nesom is spreading uncontrollably along wet habitats as well as in disturbed ecosystems. All those habitats function as corridors that facilitate seed dispersal. One way to prevent the spread of invasive species is to know their reproductive ecology. The present study evaluates the potential for generative reproduction of S. lanceolatum and determines how different temperatures, amounts of nutrients, and light regimes, affect seed germination. Seeds collected from 13 natural populations were germinated at four fluctuating temperature regimes (15/6, 20/10, 30/15, and 35/20 °C). To test the influence of nitrate on seed germination, two KNO3 concentrations were used (5 mM and 50 mM solution). For each treatment, three replicates of 30 seeds were placed in complete darkness or a 14 h photoperiod. The results showed that the germination increased with increasing temperature. The optimal temperature regimes were 30/15 °C and 35/20 °C with approximately 88% germination. The overall effect of KNO3 on germination was positive. The concentration of 50 mM KNO3 had a less stimulating effect compared to 5 mM KNO3. Seeds showed sensitivity to lack of light during germination but were able to germinate in a significant percentage in such conditions. Considering that S. lanceolatum often occurs in disturbed sites, these results suggest that seed reaction to alternating temperature, nutrients concentration, and light can be determining factors that affect seed germination of this species and, thus, its spread.

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Section: Discussioncontrasting

confidence: 99%

“…S. lanceolatum is a tall, herbaceous perennial occupying early successional habitats. The species is native to North America and Canada, and invasive in many European countries [ 30 ]. S. lanceolatum blooms and bears fruits in late summer to late autumn and aboveground parts die back subsequently [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting Seed Germination of the Invasive Species Symphyotrichum lanceolatum and Their Implication for Invasion Success

Nešić

Obratov–Petković

Skocajic

et al. 2022

Plants

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“…Perennial North-American asters have become common as ornamental plants in central Europe since the 17th century and today many species of this genus, including a high number of cultivars, are used in horticulture, but only two species, Symphyotrichum lanceolatum (Willd.) G. L. Nesom and Symphyotrichum novi-belgii (L.) G. L. Nesom are considered to be widely naturalized in central Europe (Jedlička & Prach, 2006).…”

Section: Introductionmentioning

confidence: 99%

NEW ENGLAND ASTER Symphyotrichum novae-angliae (Compositae) – A NEW ALIEN SPECIES IN THE FLORA OF BOSNIA AND HERZEGOVINA

Maslo¹,

Šarić²

2017

Herbologia

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An unknown aster in the vicinity of village Ribnica near Zavidovići. Plenty of plants were observed in a single site of about 200 square meters. Based on the collected material and the relevant literature, the first author has determined the taxon as Symphyotrichum novae-angliae.New England aster is native in North America but it has been introduced to many areas beyond its natural range. The paper presents a short morphological description and photographs of the species based mainly on the collected specimens, as well as the distribution of the taxon.

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Determinants of invasion by single versus multiple plant species in temperate lowland forests

et al. 2022

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A comparison of two North-American asters invading in central Europe

Cited by 13 publications

References 18 publications

Factors Affecting Seed Germination of the Invasive Species Symphyotrichum lanceolatum and Their Implication for Invasion Success

Factors Affecting Seed Germination of the Invasive Species Symphyotrichum lanceolatum and Their Implication for Invasion Success

NEW ENGLAND ASTER Symphyotrichum novae-angliae (Compositae) – A NEW ALIEN SPECIES IN THE FLORA OF BOSNIA AND HERZEGOVINA

Determinants of invasion by single versus multiple plant species in temperate lowland forests

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