Germination biology of Hibiscus tridactylites in Australia and the implications for weed management

Chauhan, Bhagirath Singh (2016) Germination biology of Hibiscus tridactylites in Australia and the implications for weed management. Scientific Reports, 6 . doi:10.1038/srep26006


Author Chauhan, Bhagirath Singh
Title Germination biology of Hibiscus tridactylites in Australia and the implications for weed management
Formatted title
Germination biology of Hibiscus tridactylites in Australia and the implications for weed management
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2016-05-13
Year available 2016
Sub-type Article (original research)
DOI 10.1038/srep26006
Open Access Status DOI
Volume 6
Total pages 6
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2017
Language eng
Formatted abstract
Hibiscus tridactylites is a problematic broadleaf weed in many crops in Australia; however, very limited information is available on seed germination biology of Australian populations. Experiments were conducted to evaluate the effect of environmental factors on germination and emergence of H. tridactylites. Germination was stimulated by seed scarification, suggesting the inhibition of germination in this species is mainly due to the hard seed coat. Germination was not affected by light conditions, suggesting that seeds of this species are not photoblastic. Germination was higher at alternating day/night temperatures of 30/20 °C (74%) and 35/25 °C (69%) than at 25/15 °C (63%). Moderate salinity and water stress did not inhibit germination of H. tridactylites. Seedling emergence of H. tridactylites was highest (57%) for the seeds buried at a 2 cm depth in the soil; 18% of seedlings emerged from seeds buried at 8 cm but no seedlings emerged below this depth. Soil inversion by tillage to bury weed seeds below their maximum depth of emergence could serve an important tool for managing H. tridactylites.
Keyword Emergence
Hibiscus tridactylites
Weed management
Germination
Environmental factors
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Alliance for Agriculture and Food Innovation
 
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