Sunday, June 24, 2012

Growth Regulators

Question:  Why do we use growth regulators on the greens if we are trying to grow grass on them?

Answer:  A growth regulator is a hormone inhibitor.  Growth retardant or regulator is a misnomer.  It restricts the giberillens (hormone that directs carbs towards the production of top growth) in the plant.  This reduces shoot or leaf growth and saves carbohydrates to be used for stress management or root growth.  We use growth regulators to control the direction of the plant growth.  In other words, the plant is still producing the same amount of growth, but with the use of growth regulators we can force the plant to put more energy in root growth and lateral growth.   This reduces the amount of leaf/vertical growth and builds an overall healthier plant.  We continue to promote growth with the use of fertility, and with the aid of the growth regulator we can encourage growth to be in the most beneficial areas (roots and laterally).  Excessive leaf growth can place additional stress on the plant and provide poor putting quality.  We use these products to encourage bentgrass over poa annua as well. 

Have a great day,

Jordan Booth
jbooth@willowoakscc.org

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