Full TGIF Record # 251291
Item 1 of 1
Web URL(s):http://www.graszaad.info/onderzoeksverslagen/Proceedings%20of%20the%207th%20IHSC.pdf#page=115
    Last checked: 11/21/2014
    Requires: PDF Reader
    Notes: Item is within a single large file
Publication Type:
i
Proceedings
Author(s):Trethewey, J. T.; Rolston, M. P.; Chynoweth, R.; McCloy, B.
Author Affiliation:Trethewey and Rolston: AgResearch Lincoln Research Centre; McCloy: NZ Arable, Christchurch; Chynoweth: Foundation for Arable Research, Lincoln, New Zealand
Title:Light, lodging and flag leaves - What drives seed yield in ryegrass?
Meeting Info.:Dallas, Texas: April 11-13, 2010
Source:Proceedings of the 7th International Herbage Seed Conference. 2010, p. 104-108.
Publishing Information:s.l.: s.n.
# of Pages:5
Keywords:TIC Keywords: Growth regulator evaluation; Lolium perenne; Plant growth regulators; Seed production; Seed yield; Trinexapac-ethyl
Abstract/Contents:"The effect on seed yield components of reduced photosynthetic capacity of perennial ryegrass (Lolium perenne L.) was investigated. Firstly, seed yield responses to plant growth regulators were examined. Lodging during flowering and seed fill had a negative effect on seed yield. Days to 50% lodging is a good predictor of seed yield. Plant growth regulator responses from trinexapac-ethyl rates and timings can be explained by delays in the onset of lodging and improved photosynthetically active radiation (PAR) interception at the mid canopy level. Secondly, following flowering, photosynthetic capacity was reduced by defoliation or shading the flag leaf, stem, or head of individual ryegrass tillers. Reduced PAR to the flag leaf and stem did not affect thousand seed weight or seed yield when compared with control plants whereas reducing PAR to the head had a significant effect. The seed head itself may be a more important source of carbohydrate than the flag leaf during seed fill."
Language:English
References:8
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Trethewey, J. T., M. P. Rolston, R. Chynoweth, and B. McCloy. 2010. Light, lodging and flag leaves - What drives seed yield in ryegrass?. p. 104-108. In Proceedings of the 7th International Herbage Seed Conference. Dallas, Texas: April 11-13, 2010. s.l.: s.n.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=251291
If there are problems with this record, send us feedback about record 251291.
Choices for finding the above item:
Web URL(s):
http://www.graszaad.info/onderzoeksverslagen/Proceedings%20of%20the%207th%20IHSC.pdf#page=115
    Last checked: 11/21/2014
    Requires: PDF Reader
    Notes: Item is within a single large file
Find from within TIC:
   Digitally in TIC by file name: ihsc2010
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)