There are currently 402 studies in the GENERA database.

Advanced Search

General Information

Document type
  • Journal Article
GE organism
  • beet
  • oilseed rape
GE trait
  • herbicide tolerance
  • Denmark


Safety for environment
  • no effect

Growth behavior and competitive ability of transgenic crops

Fredshavn, Jesper R; Poulsen, Gitte Silberg
Field Crops Research. 1996 May. 45(3-Jan):18-Nov

Link to full text (journal may charge for access)

DOI: 10.1016/0378-4290(95)00054-2 ISSN: 0378-4290


One of the major concerns about introducing transgenic plants to field conditions is the possible creation of a new weed either by the transformed plant itself or through its hybrids with wild relatives. An increased fitness of the transgenic plant could be the result of major changes in characteristics found in the phases of the life cycle, especially the competitive ability. We tested transgenic plants under greenhouse and field conditions, and found it possible to quantify relative competitive ability under standard growth conditions. These tests could be used in pre-release testing to identify significant changes in competitiveness compared to a range of nontransformed material.


Bioassay; Fitness; Standard procedures; Transgenic crops; Weed control; Weediness characteristics


Funding source
  • European Economic Community
  • Danish BIOTEK program
Funding country
  • Europe (pre-EU)
  • Denmark
Funding type
  • government

Links to outside analysis of this resource

Please contact us if you know of an independent summary or analysis of this resource.

Cite this study


Fredshavn, Jesper R, Gitte Silberg Poulsen. "Growth behavior and competitive ability of transgenic crops." Field Crops Research 45.3-Jan (1996): 18-Nov. Web. 26 Sep. 2023.


Fredshavn, Jesper R., Poulsen, Gitte Silberg. (1996). Growth behavior and competitive ability of transgenic crops. Field Crops Research, 45(3-Jan), 18-Nov. doi:10.1016/0378-4290(95)00054-2

Please verify citations before use, citations are automatically generated based on information stored within the GENERA database and therefore may or may not be correct.