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Article: Modified gibberellins retard growth of cool-season turfgrasses.
- Article from:
- Crop Science
- Article date:
- November 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Crop Science Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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One objective in turf management is to maintain a dense sward without excessive leaf elongation and to prevent inflorescence formation (Kaufmann, 1990). Mowing is an expensive--and sometimes hazardous--solution. Treatment with a growth retardant is an option provided it reduces stem and leaf elongation but has no direct effect on photosynthesis, leaf appearance rate, leaf longevity, and plant viability. One such class of compounds antagonize the synthesis of the gibberellin (GA) class of plant growth regulator (Kaufmann, 1990; Johnson,1992,1993)
In many temperate grasses, long daylengths (LD) are important for leaf elongation (Evans, 1964) and they may enhance ...