Web URL(s): http://turf.uconn.edu/pdf/research/reports/2013%20UConn%20Annual%20Turf%20Research%20Report.pdf#page=89 Publication Type:
i
Report Author(s): Li, W. ;
Thammina, C. ;
Chen, J. ;
Yu, H. ;
Cao, K. ;
Inguagiato, J. ;
Li, Y. Title: Evaluation of short-growth mutants of perennial ryegrass for their shade tolerance Section: Scientific publications (abstracts & citations)Other records with the "Scientific publications (abstracts & citations)" Section Source: 2013 Annual Turfgrass Research Report [Connecticut]. 2014, p. 81.# of Pages: 1 Publishing Information: Storrs, Connecticut: Department of Plant Science and Landscape Architecture, College of Agriculture and Natural Resources, University of Connecticut Keywords: TIC Keywords: Cultivar evaluation ; Dwarf cultivars ; Growth period ; Lolium perenne ; Mutants ; Shade resistance Abstract/Contents: "Shade tolerance is an important trait for perennial ryegrass (PRG; Lolium perenne L.). Under shade environment, typical symptoms of PRG include thin, narrow and elongated leaf blades, reduced leaf appearance and tiller number, poor wearing ability, and weak root system. We have used mutagenesis techniques to breed short-growth (dwarf) mutant PRG varieties. A number of M2 generation plant lines were selected based on height, tiller number and leaf width. One line, named EMS18, displayed lower leaf extension rate (shorter leaf blade), better leaf appearance (greener color) and longer root when compared to the wild-type controls under greenhouse conditions. FN4, another line, also showed reduced elongation in leaf blade and internodes length when grown in the field. We have further evaluated their responses to shade under field conditions. EMS18 and FN4 were planted in woods and mowed at a height of 3 inches regularly. After 1.5 months of totally shaded (no direct sunlight) environments, these two mutant lines were green in color and healthy in general, while the wild-type controls became yellow and some leaves were dying. The root systems, particularly the root lengths of both EMS18 and FN4, were similar to that of the wild-type controls. After two months, the wild-type controls totally died but EMS18 survived and appeared to be healthy. Additional characterization and field evaluation will be done in 2013." Language: English References: 0 Note: This item is an abstract only! ASA/CSSA/SSSA Citation (Crop Science -Like - may be incomplete ): Turfgrass Res. Rep. [Connecticut]. p. 81.Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=243953 If there are problems with this record, send us feedback about record 243953 . Choices for finding the above item : Web URL(s): http://turf.uconn.edu/pdf/research/reports/2013%20UConn%20Annual%20Turf%20Research%20Report.pdf#page=89 b5428823 Find from within TIC: Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)
