Ghent University Academic Bibliography

Advanced

Seed dormancy, germination, emergence and seed longevity in Galinsoga parviflora and G. quadriradiata

Benny De Cauwer UGent, R Devos, Sofie Claerhout UGent, Robert Bulcke and Dirk Reheul UGent (2014) WEED RESEARCH. 54(1). p.38-47
abstract
Galinsoga quadriradiata (hairy galinsoga) and Galinsoga parviflora (smallflower galinsoga, gallant soldier) are very troublesome weeds in many vegetable row crops in Europe. To optimise management strategies for Galinsoga spp. control, an in-depth study of germination biology was performed. Germination experiments were conducted to evaluate the impact of light and alternating temperatures on germination of a large set of Galinsoga populations. Seedling emergence was investigated by burying seeds at different depths in a sandy and sandy loam soil. Dormancy of fresh seeds harvested in autumn was evaluated by studying germination response in light at 25/20 degrees C with and without nitrate addition. Seed longevity was investigated in an accelerated ageing experiment by exposing seeds to 45 degrees C and 100% relative humidity. Galinsoga spp. seeds required light for germination; light dependency varied among populations. Seedling emergence decreased drastically with increasing burial depth. Maximum depth of emergence varied between 4 and 10mm depending on soil type and population. In a sandy soil, emergence percentages were higher and seedlings were able to emerge from greater depths than in a sandy loam soil. Freshly produced G.parviflora seeds, harvested in autumn, showed a varying but high degree of primary dormancy and were less persistent than G.quadriradiata seeds that lack primary dormancy. Lack of primary dormancy of freshly harvested G.quadriradiata seeds and light dependency for germination may be used to optimise and develop Galinsoga management strategies.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
WEED SEEDS, seed longevity, SOIL, CILIATA, PERSISTENCE, COMPOSITAE, ASTERACEAE, BIOLOGY, LIGHT, primary dormancy, photoblasticity, emergence, burial depth, hairy galinsoga, gallant soldier
journal title
WEED RESEARCH
Weed Res.
volume
54
issue
1
pages
38 - 47
Web of Science type
Article
Web of Science id
000329312400004
JCR category
AGRONOMY
JCR impact factor
1.687 (2014)
JCR rank
21/81 (2014)
JCR quartile
2 (2014)
ISSN
0043-1737
DOI
10.1111/wre.12055
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
4298570
handle
http://hdl.handle.net/1854/LU-4298570
date created
2014-02-21 14:50:14
date last changed
2016-12-19 15:43:42
@article{4298570,
  abstract     = {Galinsoga quadriradiata (hairy galinsoga) and Galinsoga parviflora (smallflower galinsoga, gallant soldier) are very troublesome weeds in many vegetable row crops in Europe. To optimise management strategies for Galinsoga spp. control, an in-depth study of germination biology was performed. Germination experiments were conducted to evaluate the impact of light and alternating temperatures on germination of a large set of Galinsoga populations. Seedling emergence was investigated by burying seeds at different depths in a sandy and sandy loam soil. Dormancy of fresh seeds harvested in autumn was evaluated by studying germination response in light at 25/20 degrees C with and without nitrate addition. Seed longevity was investigated in an accelerated ageing experiment by exposing seeds to 45 degrees C and 100\% relative humidity. Galinsoga spp. seeds required light for germination; light dependency varied among populations. Seedling emergence decreased drastically with increasing burial depth. Maximum depth of emergence varied between 4 and 10mm depending on soil type and population. In a sandy soil, emergence percentages were higher and seedlings were able to emerge from greater depths than in a sandy loam soil. Freshly produced G.parviflora seeds, harvested in autumn, showed a varying but high degree of primary dormancy and were less persistent than G.quadriradiata seeds that lack primary dormancy. Lack of primary dormancy of freshly harvested G.quadriradiata seeds and light dependency for germination may be used to optimise and develop Galinsoga management strategies.},
  author       = {De Cauwer, Benny and Devos, R and Claerhout, Sofie and Bulcke, Robert and Reheul, Dirk},
  issn         = {0043-1737},
  journal      = {WEED RESEARCH},
  keyword      = {WEED SEEDS,seed longevity,SOIL,CILIATA,PERSISTENCE,COMPOSITAE,ASTERACEAE,BIOLOGY,LIGHT,primary dormancy,photoblasticity,emergence,burial depth,hairy galinsoga,gallant soldier},
  language     = {eng},
  number       = {1},
  pages        = {38--47},
  title        = {Seed dormancy, germination, emergence and seed longevity in Galinsoga parviflora and G. quadriradiata},
  url          = {http://dx.doi.org/10.1111/wre.12055},
  volume       = {54},
  year         = {2014},
}

Chicago
De Cauwer, Benny, R Devos, Sofie Claerhout, Robert Bulcke, and Dirk Reheul. 2014. “Seed Dormancy, Germination, Emergence and Seed Longevity in Galinsoga Parviflora and G. Quadriradiata.” Weed Research 54 (1): 38–47.
APA
De Cauwer, Benny, Devos, R., Claerhout, S., Bulcke, R., & Reheul, D. (2014). Seed dormancy, germination, emergence and seed longevity in Galinsoga parviflora and G. quadriradiata. WEED RESEARCH, 54(1), 38–47.
Vancouver
1.
De Cauwer B, Devos R, Claerhout S, Bulcke R, Reheul D. Seed dormancy, germination, emergence and seed longevity in Galinsoga parviflora and G. quadriradiata. WEED RESEARCH. 2014;54(1):38–47.
MLA
De Cauwer, Benny, R Devos, Sofie Claerhout, et al. “Seed Dormancy, Germination, Emergence and Seed Longevity in Galinsoga Parviflora and G. Quadriradiata.” WEED RESEARCH 54.1 (2014): 38–47. Print.