Growth of U‐3 Bermudagrass Under Various Day and Night Temperatures and Light Intensities1

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  • VYVictor B. Youngner
    Victor B. Youngner
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Abstract
Synopsis: Minimum temperatures for growth of the U‐3 strain of bermudagrass was found to be 1280 degree‐hours F. obtained by an 8‐hour day at 60° F. and a 16‐hour night at 40° F. Cold weather‐induced dormancy or loss of chlorophyll was found to be caused by an interaction of low temperatures with sunlight of 7000 footcandles or more intensity. Chlorophyll loss under high intensity light varied directly with decrease in day and/or night temperatures.