Full TGIF Record # 28122
Item 1 of 1
Publication Type:
i
Refereed
Author(s):White, R. H.; Bruneau, A. H.; Cowett, T. J.
Author Affiliation:NC State, Raleigh, NC
Title:Drought resistance of diverse tall fescue cultivars
Meeting Info.:7th International Turfgrass Society Research Conference, Palm Beach, FL, USA, 18-24 July, 1993
Source:International Turfgrass Society Research Journal. Vol. 7, 1993, p. 607-613.
Publishing Information:Overland Park, KS: INTERTEC Publishing Corp.
# of Pages:7
Keywords:TIC Keywords: Festuca arundinacea; Dwarf cultivars; Drought resistance; Water stress; Cultivars; Rooting; Root length
Cultivar Names:Arid; Rebel Jr.; Bonsai; Kentucky 31
Abstract/Contents:"Tall fesuce (Festuca arundinacea Shreb.) is used as a forage and turfgrass throughout the United States. Development of new tall fescue cultivars appears oriented toward semi-dwarf and dwarf cultivars. Many turf managers are concerned about performance of the newer cultivars in stressful environments. The objectives of this work were to determine 1) the rooting characteristics and 2) the water relations characteristics under greenhouse conditions of tall fescue cultivars representing several generations of selection for turf-type characteristics. We also determined the effects of moisture deficit on survival of tall fescue. Kentucky-31, Arid, Rebel Jr, and Bonsai were compared because they represent several generations of improvement in turf-type characterisitics. Kentucky-31 is a forage-type, Arid is a turf-type, Rebel Jr is considered to be a semi-dwarf turf-type, and Bonsai is a dwarf, turf-type. Maximum rooting depth and primary root length density (PRLD) at 0 to 250 and 1000 to 1250 mm depths were similar for cultivars grown in 50-mm diameter by 1250-mm deep pots. Arid had higher PRLD at depths of 250 to 1000 mm and greater total root length than Bonsai. Rebel Jr and Kentucky-31 were intermediate for these characteristics. For Arid, Rebel Jr, and Bonsai grown in the same containers, Arid had the greatest recovery from drought and most negative YLO and Ytt100. Bonsai had the lowest recovery and more positive YLO and Ytt100. This study indicates that tall fescue cultivars differ in both drought avoidance, confered by total root length, and tolerance, confered by YLO and Ytt100, and survival from extreme moisture deficit."
Language:English
References:9
Note:"Chapter 86"
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
White, R. H., A. H. Bruneau, and T. J. Cowett. 1993. Drought resistance of diverse tall fescue cultivars. Int. Turfgrass Soc. Res. J. 7:p. 607-613.
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