Full TGIF Record # 243945
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Web URL(s):http://turf.uconn.edu/pdf/research/reports/2013%20UConn%20Annual%20Turf%20Research%20Report.pdf#page=88
    Last checked: 06/05/2014
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Publication Type:
i
Report
Author(s):Thammina, C.; Chen, J.; Li, W.; Yu, H.; Yer, H; Cao, K.; Inguagiato, J.; Li, Y.
Title:Development of short-growth cultivars of perennial ryegrass through mutation breeding techniques
Section:Scientific publications (abstracts & citations)
Other records with the "Scientific publications (abstracts & citations)" Section
Source:2013 Annual Turfgrass Research Report [Connecticut]. 2014, p. 80.
# 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: Breeding aims; Cultivar evaluation; Growth period; Lolium perenne; Mowing frequency; Mutations
Cultivar Names:Fiesta 4
Abstract/Contents:"Perennial ryegrass (PRG; Lolium perenne L.) is an important cool-season grass grown in lawns, athletic fields and golf courses. PRG is commonly used in residential and commercial lawns and maintained at an optimum mowing height of 5 to 9 cm. Short-growth PRG mutants can reduce mowing frequency and may also be useful in fairways and tees where low mowing heights are desirable. We have used mutation breeding techniques to generate short-growth mutants of 'Fiesta 4' perennial ryegrass. A number of mutant lines including GAD-1, GAD-2 and FN-5, exhibiting short-growth characteristics were selected from M2 generation. Mutant lines and the wild-type (WT) were vegetatively propagated and evaluated under greenhouse and field conditions. The data from greenhouse studies show that the GAD-1 and GAD-2 mutants had significantly lower leaf extension rates (29%, 27%) and leaf blade lengths (38%, 31%), respectively, when compared to the WT. Similarly, under field conditions at maturity stage, GAD-1, GAD-2 mutants had significantly lower canopy heights (27%, 31%) and shorter leaf blades (39%, 49%), respectively, when compared with the WT. Also, FN-5 mutant evaluated under field conditions had extremely shorter canopy (72% shorter than the WT), shorter internodes (74% shorter than the WT) and shorter leaf blades (56% shorter than the WT). Because of their short-growth characteristics, all the 3 mutants need mowing less frequently, their requirements for water and fertilizer should also be reduced. Further evaluation is in progress to characterize the performance of these plants under drought, low fertilizer and other conditions."
Language:English
References:0
Note:This item is an abstract only!
"77th Annual Meeting of the Northeast Section American Society of Plant Biologists. 20-21 April. Univ. Mass., Amherst, MA."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Thammina, C., J. Chen, W. Li, H. Yu, H. Yer, K. Cao, et al. 2014. Development of short-growth cultivars of perennial ryegrass through mutation breeding techniques. Turfgrass Res. Rep. [Connecticut]. p. 80.
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Web URL(s):
http://turf.uconn.edu/pdf/research/reports/2013%20UConn%20Annual%20Turf%20Research%20Report.pdf#page=88
    Last checked: 06/05/2014
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: b5428823
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