Full TGIF Record # 71599
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Publication Type:
i
Report
Author(s):Hampton, J. G.; Cookson, W. R.; Grama, A.; Rowarth, J. S.; McGill, C. R.; Hill, M. J.
Author Affiliation:Hampton, Rowarth, and Hill: Seed Technology Institute; and Crookson: Soil, Plant and Ecological Sciences, Lincoln University, Canterbury, New Zealand; Grama: Department of Genetic Resources and Seed Research, The Volcani Centre, Ministry of Agriculture and Rural Development, Bet Dagan, Israel; and McGill: Seed Technology Centre, Institute of Natural Resources, Massey University, Palmerston North, New Zealand
Title:Temperature and time variables for accelerated ageing testing of perennial ryegrass (Lolium perenne L.) seed lots
Source:Seed Science and Technology. Vol. 28, November 2000, p. 861-863.
# of Pages:3
Publishing Information:Zurich: International Seed Testing Association
Keywords:TIC Keywords: Temperatures; Lolium perenne; Seeds; Seed vigor; Germination; Seed aging; Seed age
Abstract/Contents:"The current recommendation for seed vigour testing in perennial ryegrass (Lolium perenne L.) of 40°C for 48 h does not always give separation of high germinating seed lots, even though field performance indicates vigour differences. Five seed lots of perennial ryegrass cv. Grasslands Nui, all of which had a germination above 90%, were subjected to accelerated ageing (AA) at temperature/time combinations ranging from 41°C for 48 to 96 h to 45°C for 48 to 72 h. The combination of 43°C for 72 h provided the best separation of post-AA germination. Results from a further experiment involving six seed lots of cv. Grasslands Nui, all with germinations greater than 98%, confirmed that AA at 43°C for 72 h gave wider separation in post-AA seed performance than temperatures of 40-42°C for 72 h."
Language:English
References:3
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hampton, J. G., W. R. Cookson, Rowarth Grama. A., McGill J. S., Hill C. R., and Cookson M. J. 2000. Temperature and time variables for accelerated ageing testing of perennial ryegrass (Lolium perenne L.) seed lots. Seed Sci. Technol. 28:p. 861-863.
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