X-Message-Number: 23392 From: "Basie" <> Subject: What one can learn from frozen Turf again (1) Date: Fri, 6 Feb 2004 18:25:18 -0500 Notice his reference to "bound" water. Maybe there is another way to protect patients. Also note the danger of fungi gasses. Basie TER at They Look What to do About Themby M. GRIFFIN, Agronomist, USGA Green Sectionturf problems can be deadly, unpre-in the sap solution and in intercellular spacesdictable, and the worst problems those whoas well as within the cell proper. When rapidwork with turf can encounter. The problemsfreezing occurs, ice crystals form within thethough, are not insoluable. We can examine howcell, and the protoplasm (the vital part of theturf is damaged during the winter and, wherecell) may become disorganized. Intercellular icepossible, explain what can be done to lessenof this kind will almost always cause severethe problem.damage or death.Turf Killed at Time of FreezingIf the plant has not had time to "harden"properly it may die at the initial freeze. In thiscase, the plant is rapidly growing and may bein a rather succulent condition with a high con-tent of water in its cellular structure. Water isWhen the plant is "hardened" by the gradualonset of cold weather and a slowing down of thegrowth process, the tissues lose much of theirfree water and the sap solution becomes moreconcentrated. Biochemical and biophysicalchanges cause the protoplasm to become hy-drated with water in a "bound" or unfreezableform and death is less likely to occur.Learnthe laNorthern Uniterinjury as severeWhat are theknown of their The ravagessix categories:MARCH 19702USGA GREEN SECTION RECORD Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=23392