Full TGIF Record # 6608
Item 1 of 1
Author(s):Knowles, R. P.
Author Affiliation:Canada Agriculture Research Station, Saskatoon, Saskatchewan, Canada
Title:Isolation requirements for certified seed production of crested wheatgrass, Agropyron cristatum (L.) Gaertn
Source:Proceedings of the 12th International Grassland Congress. Chemicalization. 1974, p. 276-280.
Publishing Information:Moscow, USSR
Keywords:TIC Keywords: Agropyron cristatum; Seed production
Abstract/Contents:Genetically marked stocks of crested wheatgrass were isolated at distances of 0, 10, and 46 m. Average outcrossing values were 10.8%, and 14.1% for non-isolated plots, 4.0% for 10 m isolation and 5.5% for 46 m. Contamination was increased in years with winds favourable for outcrossing. Borders received more contamination than centres of plots but discarding borders in crested wheat grass appeared less effective than in other grasses. A high value of 8.8% contamination in one season using 46 m isolation suggested that a certified requirement of 50 m isolation might not be sufficient for crested wheatgrass. Until other studies are made it is recommended that 50 m remain the minimum isolation requirement for this grass.
Language:English
References:4
Note:Lang: Russian
Geographic Terms:Canada, Saskatchewan
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Knowles, R. P. 1974. Isolation requirements for certified seed production of crested wheatgrass, Agropyron cristatum (L.) Gaertn. Int. Grassland Congress Proc. p. 276-280.
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