Full TGIF Record # 70952
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Huang, B.; Liu, X.
Author Affiliation:Kansas State University
Title:Effects of root-zone cytokinin application on creeping bentgrass tolerance to heat stress
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 154.
# of Pages:1
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
Keywords:TIC Keywords: Cytokinins; Agrostis stolonifera; Heat stress; Heat resistance; Soil temperature; Air temperature; Zeatin riboside; Root zone; Shoots; Roots
Cultivar Names:Penncross
Abstract/Contents:"Cytokinin Effects on Shoot and Root Growth of Creeping Bentgrass In Relation to Heat Stress. Heat stress is a major environmental factor limiting growth and quality of cool-season turfgrass during summer in the transitional zone and warm climatic areas. The objectives of this study were to examine whether exogenous application of zeatin riboside (ZR) would enhance heat tolerance of creeping bentgrass and to determine the effective concentrations of ZR. 'Penncross' creeping bentgrass was subjected to high soil temperature (20/35 C air/soil) alone and high air and high soil temperatures (35/35 C) for 56 d in growth chambers. Four concentration of zeatin riboside (ZR), 0.01, 0.1, 1 and 10 ╬╝mol, and 50 ml of water were applied to the root zone at the beginning (0 d) and 14 d of heat stress. Applications of 1 and 10 ╬╝mol ZR mitigated heat stress injury to shoots and roots, with 10 ╬╝mol ZR being more effective when applied at either 0 or 14 d of heat stress. Application of 0.1 ╬╝mol ZR alleviated high temperature injury for a shorter period and was less effective than 1 and 10 ╬╝mol ZR. Application of 0.01 ╬╝mol ZR had no effects on shoot and root responses to high soil temperature alone or in combination with high air temperature."
Note:This item is an abstract only!
See Also:Other items relating to: Biostimulants
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huang, B., and X. Liu. 2000. Effects of root-zone cytokinin application on creeping bentgrass tolerance to heat stress. Annu. Meet. Abstr. p. 154.
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