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This article in AJ

  1. Vol. 60 No. 6, p. 666-668
     
    Received: Apr 19, 1968


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doi:10.2134/agronj1968.00021962006000060025x

Effect of Soil Temperature on the Reproductive Processes of Kentucky Bluegrass (Poa pratensis L. ‘Newport’)1

  1. M. A. Maun,
  2. I. D. Teare and
  3. C. L. Canode2

Abstract

Abstract

Kentucky bluegrass plants grown in pots for 38 weeks under field conditions were subjected to soil temperatures of 14 ± 0.5 and 22 ± 2 C in a greenhouse environment. A soil temperature of 22 C significantly increased culm height, number of spikelets per head, percentage fertility of florets, and seed production. The 22 C soil temperature also resulted in a 5- to 8-day earlier maturity of panicles compared to the 14 C soil temperature. There was no significant difference in number of heads per plant between the two temperatures.

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